Table of Contents
- 1. Introduction.
- 1.1. Thank you letter.
- 2. Safety information.
- 2.1. Using this manual.
- 2.1.1. Conventions and symbols used.
- 3. Quality assurance and standards.
- 3.1. Statement by the management.
- 3.2. Standards.
- 3.2.1. First and second environment.
- 3.3. Environment.
- 4. Presentation.
- 4.1. Views.
- 4.1.1. Views of the device.
- 4.2. Definition of the product.
- 4.2.1. Nomenclature.
- 4.3. Operating principle.
- 4.4. UPS operating modes.
- 4.4.1. Notable features.
- 4.5. Optional extras.
- 4.5.1. Isolation transformer:
- 4.5.2. Exterior manual maintenance bypass.
- 4.5.3. Communication card.
- 4.5.4. Extendable guide kits for mounting in a rack cabinet.
- 5. Installation.
- 5.1. RECEPTION OF THE DEVICE.
- 5.1.1. Reception, unpacking and contents.
- 5.1.2. Storage.
- 5.1.3. Unpacking.
- 5.1.4. Transport to the site.
- 5.1.5. Siting, immobilising and considerations.
- 5.1.5.1. Rotation of the control panel with LCD display.
- 5.1.5.2. Vertical tower-type mounting.
- 5.1.5.3. Vertical tower-type mounting with backup extension (battery module).
- 5.1.5.4. Mounting as a rack in a 19” cabinet.
- 5.1.5.5. Rack mounting in a 19” cabinet with backup extension (battery module).
- 5.1.5.6. Vertical tower-type mounting with PDU.
- 5.1.5.7. Rack mounting in 19” cabinet with PDU.
- 5.1.5.8. Preliminary considerations before connection.
- 5.1.5.9. Preliminary considerations before connection, regarding the batteries and their protections.
- 5.1.5.10. Connection elements.
- 5.1.5.1. Rotation of the control panel with LCD display.
- 5.2. Connections.
- 5.2.1. Connection of the input.
- 5.2.2. Connection to IEC connectors or output terminals.
- 5.2.3. Connection to external batteries (backup extension).
- 5.2.4. Connection of the input earth terminal () and the earth connection terminal () .
- 5.2.5. Terminals for EPO (emergency power off).
- 5.2.6. Terminals for digital input and output to relay. Only in models with power ratings > 3 kVA.
- 5.2.7. Manual bypass auxiliary contact terminals. Only in models with power ratings > 3 kVA.
- 5.2.8. Connection in parallel, only in models with power ratings > 3 kVA.
- 5.2.9. Communication port.
- 5.2.10. Smart slot for the integration of an electronic communication unit.
- 5.2.11. Protection against voltage spikes for the modem / ADSL / fax, etc., line. .
- 5.2.12. Software.
- 5.2.13. Considerations before start-up with connected loads.
- 6. Operation.
- 6.1. Start-up.
- 6.1.1. Checks before start-up.
- 6.2. UPS start-up and shutdown.
- 6.2.1. UPS start-up with mains voltage.
- 6.2.2. UPS start-up without mains voltage.
- 6.2.3. UPS shutdown with mains voltage.
- 6.2.4. UPS shutdown without mains voltage.
- 6.3. Operating procedure for a parallel system (only in 4 to 10 kVA models).
- 6.4. How to add a UPS to a system in parallel operation or to a functioning single UPS (only in 4 to 10 kVA models).
- 6.5. How to replace a faulty UPS in an operational parallel system.
- 7. Control panel with LCD display.
- 7.1. GENERAL INFORMATION FOR THE SERIES.
- 7.1.1. Information represented by the display.
- 7.1.2. Common messages shown on the LCD display.
- 7.1.3. Common abbreviations shown on the display.
- 7.2. Control panel for models up to 3 kVA.
- 7.2.1. Composition of the control panel with LCD display.
- 7.2.2. Audible alarms.
- 7.2.3. Location of the adjustment parameters on the display.
- 7.2.4. Settings.
- 7.3. Control panel for 4 kVA to 10 kVA models.
- 7.3.1. Audible alarms.
- 7.3.2. Optical indications.
- 7.3.3. Location of the adjustment parameters on the display.
- 7.3.4. Settings.
- 8. Maintenance, warranty and service.
- 8.1. Battery maintenance.
- 8.1.1. Notes for the installation and replacement of the battery.
- 8.2. UPS troubleshooting guide.
- 8.2.1. Troubleshooting guide for devices up to 3 kVA.
- 8.2.2. Troubleshooting guide for 4 kVA to 10kVA devices.
- 8.3. Warranty conditions.
- 8.3.1. Terms of the warranty.
- 8.3.2. Exclusions.
- 8.4. Technical services network.
- 9. Annexes.
- 9.1. General technical specifications.
- 9.2. Glossary.
Salicru 698CA000008 User Manual
Displayed below is the user manual for 698CA000008 by Salicru which is a product in the Uninterruptible Power Supplies (UPSs) category. This manual has pages.
Related Manuals
SLC TWIN RT2
0,7.. 10 kVA
UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)
USER MANUAL
2SALICRU
General index
1. INTRODUCTION.
1.1. THANK YOU LETTER.
2. SAFETY INFORMATION.
2.1. USING THIS MANUAL.
2.1.1. Conventions and symbols used.
3. QUALITY ASSURANCE AND STANDARDS.
3.1. STATEMENT BY THE MANAGEMENT.
3.2. STANDARDS.
3.2.1. First and second environment.
3.2.1.1. First environment.
3.2.1.2. Second environment.
3.3. ENVIRONMENT.
4. PRESENTATION.
4.1. VIEWS.
4.1.1. Views of the device.
4.2. DEFINITION OF THE PRODUCT.
4.2.1. Nomenclature.
4.3. OPERATING PRINCIPLE.
4.4. UPS OPERATING MODES.
4.4.1. Notable features.
4.5. OPTIONAL EXTRAS.
4.5.1. Isolation transformer:
4.5.2. Exterior manual maintenance bypass.
4.5.3. Communication card.
4.5.3.1. Integration into computer networks using an SNMP adapter.
4.5.3.2. Modbus RS485.
4.5.3.3. Interface to relays.
4.5.4. Extendable guide kits for mounting in a rack cabinet.
5. INSTALLATION.
5.1. RECEPTION OF THE DEVICE.
5.1.1. Reception, unpacking and contents.
5.1.2. Storage.
5.1.3. Unpacking.
5.1.4. Transport to the site.
5.1.5. Siting, immobilising and considerations.
5.1.5.1. Rotation of the control panel with LCD display.
5.1.5.2. Vertical tower-type mounting.
5.1.5.3. Vertical tower-type mounting with backup extension (battery
module).
5.1.5.4. Mounting as a rack in a 19” cabinet.
5.1.5.5. Rack mounting in a 19” cabinet with backup extension
(battery module).
5.1.5.6. Vertical tower-type mounting with PDU.
5.1.5.7. Rack mounting in 19” cabinet with PDU.
5.1.5.8. Preliminary considerations before connection.
5.1.5.9. Preliminary considerations before connection, regarding the
batteries and their protections.
5.1.5.10. Connection elements.
5.2. CONNECTIONS.
5.2.1. Connection of the input.
5.2.2. Connection to IEC connectors or output terminals.
5.2.2.1. Connection of loads in models up to 3 kVA.
5.2.2.2. Connection of loads in 4 to 10 kVA 10 kVA.
5.2.3. Connection to external batteries (backup extension).
5.2.4. Connection of the input earth terminal ( ) and the earth
connection terminal ( ) .
5.2.5. Terminals for EPO (emergency power off).
5.2.6. Terminals for digital input and output to relay. Only in models
with power ratings > 3 kVA.
5.2.7. Manual bypass auxiliary contact terminals. Only in models with
power ratings > 3 kVA.
5.2.8. Connection in parallel, only in models with power ratings > 3
kVA.
5.2.8.1. Introduction in redundancy.
5.2.8.2. Installation and operation in parallel.
5.2.9. Communication port.
5.2.9.1. RS232 and USB port.
5.2.10. Smart slot for the integration of an electronic communication
unit.
5.2.11. Protection against voltage spikes for the modem / ADSL / fax,
etc., line. .
5.2.12. Software.
5.2.13. Considerations before start-up with connected loads.
6. OPERATION.
6.1. STAR T-UP.
6.1.1. Checks before start-up.
6.2. UPS START-UP AND SHUTDOWN.
6.2.1. UPS start-up with mains voltage.
6.2.2. UPS start-up without mains voltage.
6.2.3. UPS shutdown with mains voltage.
6.2.4. UPS shutdown without mains voltage.
3
6.3. OPERATING PROCEDURE FOR A PARALLEL SYSTEM (ONLY
IN 4 TO 10 KVA MODELS).
6.4. HOW TO ADD A UPS TO A SYSTEM IN PARALLEL
OPERATION OR TO A FUNCTIONING SINGLE UPS (ONLY IN 4
TO 10 KVA MODELS).
6.5. HOW TO REPLACE A FAULTY UPS IN AN OPERATIONAL
PARALLEL SYSTEM.
7. CONTROL PANEL WITH LCD DISPLAY.
7.1. GENERAL INFORMATION FOR THE SERIES.
7.1.1. Information represented by the display.
7.1.2. Common messages shown on the LCD display.
7.1.3. Common abbreviations shown on the display.
7.2. CONTROL PANEL FOR MODELS UP TO 3 KVA.
7.2.1. Composition of the control panel with LCD display.
7.2.2. Audible alarms.
7.2.3. Location of the adjustment parameters on the display.
7.2.4. Settings.
7.2.4.1. Ah configuration of parameter ‘12’.
7.2.4.2. Operating mode / Description of state.
7.2.4.3. Warning or alert codes.
7.2.4.4. Error or fault codes.
7.2.4.5. Warning or alert indicators.
7.3. CONTROL PANEL FOR 4 KVA TO 10 KVA MODELS.
7.3.1. Audible alarms.
7.3.2. Optical indications.
7.3.3. Location of the adjustment parameters on the display.
7.3.4. Settings.
7.3.4.1. Operating mode / Description of state.
7.3.4.2. Operating mode / Description of state.
7.3.4.3. Warning or alert codes.
7.3.4.4. Error or fault codes.
7.3.4.5. Warning or alert indicators.
8. MAINTENANCE, WARRANTY AND SERVICE.
8.1. BATTERY MAINTENANCE.
8.1.1. Notes for the installation and replacement of the battery.
8.2. UPS TROUBLESHOOTING GUIDE.
8.2.1. Troubleshooting guide for devices up to 3 kVA.
8.2.2. Troubleshooting guide for 4 kVA to 10kVA devices.
8.3. WARRANTY CONDITIONS.
8.3.1. Terms of the warranty.
8.3.2. Exclusions.
8.4. TECHNICAL SERVICES NETWORK.
9. ANNEXES.
9.1. GENERAL TECHNICAL SPECIFICATIONS.
9.2. GLOSSARY.
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
4SALICRU
SALICRU
1. INTRODUCTION.
1.1. THANK YOU LETTER.
We thank you in advance for the trust placed in us in the
purchasing of this product. Read this instruction manual
carefully in order to familiarize yourself with its content,
since the more you know and understand the equipment the
greater your satisfaction, level of safety and optimization of its
functionalities will be.
We remain at your disposal for any additional information or
queries that you may wish to make.
Yours sincerely.
•The equipment described herein is capable of causing
significant physical damage in the event of improper
handling. For this reason its installation, maintenance and/
or repair must be carried out exclusively by our personnel or
by qualified personnel.
•Although no effort has been spared to ensure that the
information in this user manual is complete and accurate, we
are not responsible for any errors or omissions that may exist.
The images included in this document are for illustrative
purposes and may not represent exactly the parts of the
equipment shown, therefore they are not contractual.
However, any divergence that may arise will be remedied or
solved with the correct labelling on the unit.
•Following our policy of constant evolution, we reserve
the right to modify the characteristics, operations
or actions described in this document without prior
notice.
•Reproduction, copying, assignment to third parties,
modification or total or partial translation of this manual
or document, in any form or by any means, without previous
written authorization by our firm is prohibited, with
the full and exclusive property rights over the same being
reserved by our firm.
5
2. SAFETY INFORMATION.
2.1. USING THIS MANUAL.
The documentation of any standard equipment is available to the
customer on our website for download (www.salicru.com).
•For devices “powered by socket”, this is the website for
obtaining the user manual and “Safety Instructions”
EK266*08.
•For devices with “permanent connection” via terminals, a
CD-ROM or pen drive containing all necessary information for
connection and start-up, including “Safety Instructions”
EK266*08, may be supplied with it.
Before carrying out any action on the device relating to its
installation or start-up, change of location, configuration or
handling of any kind, carefully read the safety instructions.
The purpose of the user manual is to provide information
regarding safety and explanations of the procedures for
installation and operation of the equipment. Read them carefully
and follow the steps indicated in the order established.
Compliance with the "Safety Instructions" is
mandatory and the user is legally responsible for
compliance and enforcement.
The equipment is delivered properly labelled for the correct
identification of each of the parts, which together with the
instructions described in this user manual allows the operations
of installation and commissioning to be performed in a simple
and orderly manner without having any doubts whatsoever.
Finally, once the equipment is installed and operating, it is
recommended to save the documentation downloaded from the
website, CD-ROM or Pen Drive in a safe and easy-to-access
place, for any future queries or doubts that may arise.
The following terms are used interchangeably in the document
to refer to:
•‘SLC TWIN RT2’, ‘TWIN RT2’, ‘TWIN’, ‘RT2’, ‘device’,
‘unit’ and ‘UPS’ - Uninterruptible power supply.
Depending on the context of the phrase, it can refer either
to the actual UPS itself or to the the UPS and the batteries,
regardless of whether it is all assembled in the same metal
casing - box - or not.
•“Batteries or accumulators”.- Group or set of elements
that stores the flow of electrons by electrochemical means.
•‘T.S.S.’ - Technical Service and Support.
•‘Client, installer, operator or user’ - These are used
interchangeably and by extension to refer to the installer
and/or operator who will carry out the corresponding
actions, and the same person may be responsible for
carrying out the respective actions when acting on behalf
of, or in representation of, same.
2.1.1. Conventions and symbols used.
Some symbols may be used and appear on the equipment,
batteries and/or in the context of the user manual.
For more information, see section 1.1.1 of document EK266*08
on "Safety instructions".
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
6SALICRU
3. QUALITY ASSURANCE AND STANDARDS.
3.1. STATEMENT BY THE MANAGEMENT.
Our goal is customer satisfaction, therefore this Management
has decided to establish a Quality and Environment Policy,
through the implementation of a Quality and Environmental
Management System that will enable us to comply with the
requirements demanded in the ISO 9001 and ISO 14001 and
also by our Customers and Stakeholders.
Likewise, the management of the company is committed to the
development and improvement of the Quality and Environmental
Management System, through:
•Communication to the entire company of the importance of
satisfying both the client's requirements as well as legal
and regulatory requirements.
•The dissemination of the Quality and Environment Policy
and the setting of the Quality and Environment objectives.
•Conducting reviews by the Management.
•Providing the necessary resources.
3.2. STANDARDS.
The SLC TWIN RT2 is designed, manufactured and sold in
accordance with Quality Management Standard EN ISO 9001.
The marking indicates conformity with EC Directives
through the application of the following standards:
•2014/35/EU. - Low voltage safety.
•2014/30/EU. - Electromagnetic Compatibility - EMC-.
•2011/65/EU. - Restriction of the use of hazardous
substances in electrical and electronic equipment (RoHS).
According to the specifications of the harmonized standards.
Reference standards:
•EN-IEC 62040-1. Uninterruptible Power Supplies -UPS-. Part
1-1: General and safety requirements for UPS used in user
access areas.
•EN-IEC 60950-1. Information technology equipment. Safety.
Part 1: General requirements.
•EN-IEC 62040-2. Uninterruptible Power Supplies -UPS-.
Part 2: EMC requirements.
The manufacturer accepts no liability in the event of
modification of or intervention on the device by the
user.
WARNING!:
SLC TWIN RT2 0.7.. 3 kVA. This is a category C2 UPS.
In a residential environment, this product may cause
radio interference, in which case the user must take
additional measures.
SLC TWIN RT2 4.. 10 kVA. This is a category C3 UPS. This
is a product for commercial and industrial application
in the second environment; Installation restrictions
or additional measures may be necessary to avoid
disturbances.
It is not appropriate to use this equipment in basic
life support applications (BLS), where a failure of the
former can render vital equipment out of service or
significantly affect its safety or effectiveness. It is also
not recommended in medical applications, commercial
transport, nuclear installations, or other applications
or loads, where a failure of the product can lead to
personal or material damages.
The EC declaration of conformity of the product is
available to the customer upon express request to our
headquarters.
3.2.1. First and second environment.
The environment examples that follow cover most UPS
installations.
3.2.1.1. First environment.
Environment including residential, commercial and light
industry installations, directly connected, without intermediate
transformers, to a low voltage public power grid.
3.2.1.2. Second environment.
An environment that includes all commercial, light industrial
and industrial establishments that are not directly connected
to a low voltage power grid supplying buildings used for
residential purposes.
3.3. ENVIRONMENT.
This product has been designed to respect the environment and
manufactured according to ISO 14001.
Recycling of the equipment at the end of its useful life:
Our company undertakes to use the services of authorized and
regulatory companies to treat the set of products recovered at
the end of their useful life (contact your distributor).
Packaging:
For the recycling of the packaging there must be compliance
with the legal requirements in force, according to the specific
regulations of the country where the equipment is installed.
Batteries:
Batteries pose a serious danger to health and the environment.
The disposal of them shall be carried out in accordance with
the laws in force.
7
4. PRESENTATION.
4.1. VIEWS.
4.1.1. Views of the device.
In Fig. 1 to Fig. 4, illustrations of the device are shown according
to box size in relation to the power rating of the model. However,
because the product is constantly evolving, discrepancies or
slight contradictions may arise. If in any doubt, the labelling on
the equipment itself will always prevail.
The nameplate of the device shows all of the values
relating to its main properties and characteristics. Act
accordingly for its installation.
0.7 to 3 kVA models
4 to 10 kVA models
Battery module for
0.7 to 10 kVA models
Control panel with
LCD display
Plastic front trim
Control panel with
LCD display
Plastic front trim
BATTERY LINEBYPASS FAULT
Fig. 1. Front view of 0.7 to 10 kVA models and their
battery modules for extended backups.
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
8SALICRU
IEC output connectors programmable
at disconnection, for non-critical loads
Standard and B1 0.7
to 1.5 kVA models
COM port
USB
RS232
COM port
AC power IEC connector
Smart slot
protective cover
Fan
Input connector for modem/
ADSL/fax, etc., lines
Connector for
external EPO
Output connector, with protection
for modem/ADSL/fax, etc.
Connector for connection to
external battery module.
Earth
connection
Non-programmable IEC output
connectors, for critical loads
Standard and B1
2 kVA models
COM port
USB
RS232 COM
port
AC power IEC connector
Smart slot
protective cover
Fan
Input connector for modem/
ADSL/fax, etc., lines
Connector for
external EPO
Output connector, with protection
for modem/ADSL/fax, etc.
Non-programmable IEC output
connectors, for critical loads
Earth
connection
IEC output connectors programmable
at disconnection, for non-critical loads
Connector for connection to
external battery module.
Standard and B1
3 kVA models
COM port
USB
RS232 COM
port
AC power IEC connector
Smart slot
protective cover
Input connector for modem/
ADSL/fax, etc., lines
Connector for
external EPO
Fans
Output connector, with protection
for modem/ADSL/fax, etc.
16 A IEC output connector
Earth
connection
Non-programmable IEC output
connectors, for critical loads
IEC output connectors programmable
at disconnection, for non-critical loads
Connector for connection to
external battery module.
Communication bus for
parallel systems
4 to 10 kVA models
COM port
USB
RS232 COM
port
Connector for
external EPO
Smart slot
protective cover
Connector for connection to
external battery module.
Output, earth,
input terminals
Manual Bypass
auxiliary contact.
Current signal bus for
parallel systems
Input
switch
Digital
input/output
Fans
Standard 4 to 10 kVA
models, represented
with battery module
Fig. 2. Rear view of 4 to 10 kVA models.
9
Battery module input
connector
VDC protection
Battery module for
0.7 to 3 kVA devices
Output connector for
battery module
Earth connection
Battery module for 4
to 10 kVA devices
Battery module
connector
VDC protection
Battery module
connector
Fig. 3. Rear view of battery modules for extended backups.
PDU for 4 to 6 kVA
devices
Output circuit
breaker
Output IEC
connectors
Output circuit
breaker
Output IEC
connectors
PDU for 8 to 10 kVA
devices
Output circuit
breaker
Output IEC
connectors
Output IEC
connectors
Output IEC
connectors
Fig. 4. Front view of PDU (power distribution unit).
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
10 SALICRU
4.2. DEFINITION OF THE PRODUCT.
4.2.1. Nomenclature.
SLC-8000-TWIN RT2 B1 WCO EE29503
MOD BAT TWIN RT2 2x6AB003 40A WCO EE29503
EE* Special customer specifications.
CO 'Made in Spain' marking on UPS and packaging
(for customs purposes).
W Private-label device.
B0 Without batteries.
B1 Device with extra charger and without batteries.
TWIN RT2 Device series.
8000 Power in VA.
SLC Brand acronym (for UPS).
CF Frequency converter (device without batteries).
EE* Special customer specifications.
CO ‘Made in Spain’ marking on UPS and packaging
(for customs purposes).
W Private-label device.
40A Protection size.
003 Last three digits of the battery code.
AB Initials of the battery family.
6 Number of batteries in one branch.
2x Number of branches in parallel. Omit for one.
0/ Battery module without them, but with the
necessary accessories to install them.
TWIN RT2 Battery module series.
MOD BAT Battery module.
Note related to B0 and B1 batteries:
(B0) The device is supplied without batteries, but with
a space reserved for installation in the same box
for models whose standard version specifies this.
For other models, the battery pack will be installed
in the manner considered most appropriate (box,
cabinet, rack, etc.).
For B0 devices ordered, the cost of acquisition,
installation and connection of the batteries shall
always be borne by the customer or distributor
and under their responsibility.
Accessories such as screws, cables and battery
connection plates are considered optional and
can be supplied upon request.
(B1) Device with a more powerful charger, which does
not have a battery pack, nor the possibility of
installing them in the same box.
If an accumulator module is required, it will need
to be ordered as a separate item, which will be
connected to the UPS using the supplied cable.
Before connecting a module or group of batteries to the
device or another available module, it is necessary
to check that the voltage value printed on the back of
the device next to the battery connector is appropriate
and that the polarity between the means of connection
corresponds.
For more information, see Chapter 9 of this document.
11
4.3. OPERATING PRINCIPLE.
This manual describes the installation and operation of SLC
TWIN RT2 series UPSs as devices that can be independently
operated or connected in parallel (for models > 3 kVA). SLC
TWIN RT2 series UPSs ensure optimum protection of any
critical load, maintaining the supply voltage of the loads
between the specified parameters without interruption during
failure, deterioration or fluctuation of mains power, and come
in a wide range of models (from 0.7 kVA to 10 kVA), enabling
the end user to select the model that best suits his needs.
Thanks to their PWM (pulse width modulation) and double-
conversion technology, SLC TWIN RT2 series UPSs are compact,
cool, silent and high performance.
The double converter principle eliminates all mains power
disturbances. A rectifier converts the AC current of the mains
into DC current, thereby maintaining optimum battery charge
level and powering the inverter, which, in turn, generates a
suitable AC sine-wave voltage for continuously powering the
loads. In the event of failure of the UPS’s mains power, the
batteries supply clean power to the inverter.
The design and construction of the SLC TWIN RT2 series UPS
has been carried out in accordance with international standards.
In addition, models with power ratings greater than 3 kVA can
be expanded with the connection of additional modules with
the same power in parallel to obtain N+X redundancy or an
increase in the system’s power.
Thus, this series has been designed to maximise the availability
of critical loads and to ensure that your business is protected
from variations in power distribution line voltage, frequency,
electrical noise, cuts and micro-cuts. This is the primary goal of
SLC TWIN RT2 series UPSs.
This manual applies to the standardised models shown in Tab. 1.
4.4. UPS OPERATING MODES.
•Normal mode.
Device running supplying output voltage from the inverter.
Mains power present with correct input voltage and
frequency.
•Battery mode.
Device running with mains voltage or frequency out of
range or without AC input power, either due to mains
failure or absence of cable connection, supplying output
voltage from the batteries.
•Bypass mode.
Device running or not, supplying output voltage directly
from the AC mains.
With the inverter running, this operating mode may be
due to an overload, blockage or inverter fault.
The actions for each incident will be as follows: Reduce
the load connected to the output, unblock the device by
resetting it – stop it and start it up again – and, if the
blockage or fault remains, contact T.S.S.
With the inverter shut down, the output supplies mains
power directly through the static bypass of the device
provided that it has AC input power.
•Frequency converter (CF) mode.
Operating mode of the UPS as a frequency converter. In
this mode, the static bypass is disabled by the condition of
disparate input and output frequencies.
Even if the LCD display on the backlit control panel
shows messages, it does not mean that the inverter is
operational. It is switched on by pressing the ‘ON’
button on the control panel, see Chapter 6.
4.4.1. Notable features.
•True on-line with double-conversion technology and output
frequency separate from the mains.
•Output power factor 1, except for B1 models where it is 0.8.
Pure sine waveform, suitable for almost all kinds of loads.
•Input power factor > 0.99 and high overall performance
(between 0.89 and 0.91 for 0.7 to 3 kVA models and > 0.93
for higher power ratings). Greater energy savings and lower
user installation costs (wiring), as well as low distortion
of the input current, which reduces pollution in the power
supply network.
•Great adaptability to the worst conditions of the mains.
Wide input voltage, frequency and waveform ranges, thus
avoiding excessive dependence on limited battery power.
•Possibility of fast and easy backup extension by adding
modules in rack format. Each battery module has two
connectors for easy connection to the device and other
identical modules.
•Availability of battery chargers of up to 6 A to reduce bat-
tery recharge times.
•N+X redundant parallel connection to increase reliability
and flexibility in power models > 3 kVA, with a maximum
of 3 devices in parallel.
•Selectable high-performance mode (ECO MODE) > 0.95 to
0.99 depending on model. Energy savings, economically
beneficial for the user.
•Possibility of starting the device without mains power
supply or discharged battery. Be careful with this aspect
because the greater the batteries are discharged, the more
the backup will be reduced.
•Intelligent battery management technology is very useful
for extending the life of accumulators and optimising
recharge times.
•Standard communication options via the RS232 serial port
or USB port.
•Digital input for device Start/Stop and ‘Error or fault’ digital
output in models with power ratings > 3 kVA.
•Remote emergency power off control (EPO).
•Control panel with LCD display available on all models and
LED indicators on devices with power ratings > 3 kVA.
•Availability of optional connectability cards to improve
communication capabilities.
•Device that can be installed as a tower or rack using the
accessories supplied. The control panel can be rotated to
adapt to either format.
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
12 SALICRU
Model Type Input/output type
SLC-700-TWIN RT2
Standard
Single-phase / Single-phase.
SLC-1000-TWIN RT2
SLC-1500-TWIN RT2
SLC-2000-TWIN RT2
SLC-3000-TWIN RT2
SLC-4000-TWIN RT2
SLC-5000-TWIN RT2
SLC-6000-TWIN RT2
SLC-8000-TWIN RT2
SLC-10000-TWIN RT2
SLC-700-TWIN RT2 (B0)
Without batteries
SLC-1000-TWIN RT2 (B0)
SLC-1500-TWIN RT2 (B0)
SLC-2000-TWIN RT2 (B0)
SLC-3000-TWIN RT2 (B0)
SLC-4000-TWIN RT2 (B0)
SLC-5000-TWIN RT2 (B0)
SLC-6000-TWIN RT2 (B0)
SLC-8000-TWIN RT2 (B0)
SLC-10000-TWIN RT2 (B0)
SLC-700-TWIN RT2 (B1)
Long backup with additional charger
SLC-1000-TWIN RT2 (B1)
SLC-1500-TWIN RT2 (B1)
SLC-2000-TWIN RT2 (B1)
SLC-3000-TWIN RT2 (B1)
SLC-4000-TWIN RT2 (B1)
SLC-6000-TWIN RT2 (B1)
SLC-8000-TWIN RT2 (B1)
SLC-10000-TWIN RT2 (B1)
Tab. 1. Standardised models.
4.5. OPTIONAL EXTRAS.
Depending on the configuration chosen, the device may include
any of the following options:
4.5.1. Isolation transformer:
The isolation transformer provides galvanic isolation in order
to completely isolate the output from the input and/or change
neutral mode.
The placement of an electrostatic screen between the primary
and secondary windings of the transformer provides a high
level of electrical noise attenuation.
The isolation transformer can be physically placed at the input
or output of the UPS depending on the technical conditions of
the whole system (device supply voltage and/or load voltage,
characteristics or their type, etc.).
In parallel systems, it is not possible to operate with independent
transformers for each UPS; on the contrary, it is necessary to
have a single common element for the total adequate power.
In any event, it will always be supplied as a peripheral
component external to the device itself in a separate box.
4.5.2. Exterior manual maintenance bypass.
The purpose of this option is to electrically isolate the device
from the mains and the critical loads without cutting the power
to the latter. In this way, maintenance or repair operations on
the device can be carried out without interruptions to the power
supply of the protected system, while preventing unnecessary
hazards for the technical personnel.
4.5.3. Communication card.
The UPS features a slot at the rear for inserting one of the
following communication cards.
4.5.3.1. Integration into computer networks using an SNMP
adapter.
Large computer systems based on LANs and WANs that
integrate servers in different operating systems must provide
the system manager with ease of control and administration.
This facility is obtained through an SNMP adapter, which
is universally supported by the main software and hardware
manufacturers.
Connection of the UPS to the SNMP is internal while that of
the SNMP to the computer network is made through a RJ45 10
base connector.
4.5.3.2. Modbus RS485.
Large computer systems based on LANs and WANs often
require that communication with any element that is integrated
into the computer network be made through a standard
industrial protocol.
One of the most used standard industrial protocols on the
market is the MODBUS protocol.
4.5.3.3. Interface to relays.
•The UPS has, as an option, an interface to relays card
that provides digital signals in the form of potential-free
contacts, with a maximum applicable voltage and current
of 240 V AC or 30 V DC and 1A.
•This communication port enables dialogue between the
device and other machines or devices through the relays
supplied in the terminal block arranged on the same card,
with a single common terminal for all of them.
From the factory, all contacts are normally open and can
be changed one by one, as indicated in the information
supplied with the optional extra.
•The most common use of these types of ports is to provide
the necessary information to the file-closing software.
•For more information, contact our T.S.S. or our nearest
distributor.
4.5.4. Extendable guide kits for mounting in a rack cabinet.
An extendable and unique guide kit is available for all device
models, valid for any kind of rack-type cabinet.
These guides allow the installation of any TWIN RT2 device
unit and possible battery modules in the case of extended
backups, as if it were a rack in its respective cabinet.
13
5. INSTALLATION.
•Read and respect the Safety Information, described
in chapter 2 of this document. Failure to obey some
of the instructions described in this manual can result in a
serious or very serious accident to persons in direct contact
or in the vicinity, as well as faults in the equipment and/or
loads connected to it.
•In addition to the device’s own user manual, other
documents are supplied on the CD-ROM or documentation
pen drive. Consult them and strictly follow the indicated
procedure.
•Unless otherwise indicated, all actions, instructions,
guidelines and notes are applicable to the devices, whether
or not they form part of a parallel system.
5.1. RECEPTION OF THE DEVICE.
•Pay attention to section 1.2.1. of the safety instructions
-EK266 * 08- in all matters relating to the handling, move-
ment and location of the unit.
•Use the most suitable means to move the UPS while it is
packed, with a transpalet or forklift.
•Any handling of the device must be carried out in accordance
with the weights shown in the technical specifications
according to the model, indicated in chapter ‘9. Annexes’.
5.1.1. Reception, unpacking and contents.
•Reception. Check that:
The data on the label affixed to the packaging
correspond to those specified in the order. Once the
UPS is unpacked, check the previous data with those of
the equipment nameplate.
If there are discrepancies, file the disagreement as
soon as possible, citing the equipment manufacture
number and the delivery note references.
It has not suffered any mishaps during transportation
(packaging and impact indicator in perfect condition).
Otherwise, follow the protocol indicated on the label
attached to the impact indicator, located on the
packaging.
•Unpacking.
To check the contents, it will be necessary to remove
the packaging.
Complete the unpacking according to the
procedure of section 5.1.3. Content.
•Content
0.7 to 3 kVA device:
–1 UPS.
–Quick guide on paper.
–Information for warranty registration.
–1 USB cable.
–3 cables with IEC connectors for loads.
–1 cable for the device’s AC power supply.
–2 metal pieces for use as handles and screws for
installing the unit in a rack cabinet.
–4 plastic pieces for use as a base to facilitate
the arrangement of the UPS as a tower (vertical
position).
Optional battery module for 0.7 to 3 kVA UPS:
–1 battery module.
–Information for warranty registration.
–2 metal pieces for use as handles and screws for
installing the unit in a rack cabinet.
–2 plastic pieces to extend the base of the UPS and
enable the arrangement of the attached battery
module in its mounting as a tower.
–1 cable for interconnecting the battery module and
UPS or other module.
4 to 10 kVA device:
–1 UPS.
–1 PDU module (power distribution unit).
–Information for warranty registration.
–2 metal pieces for use as handles and screws for
installing the UPS in a rack cabinet.
–2 metal pieces for use as handles and screws for
installing the PDU in a rack cabinet.
–1 metal piece and screws for mounting the PDU
attached to the UPS arranged as a tower.
–1 USB cable.
–4 plastic pieces for use as a base to facilitate
the arrangement of the UPS as a tower (vertical
position).
–1 cable for connecting the communication bus.
Useful only for connection to a parallel device.
–1 cable for connecting the current bus. Useful only
for connection to a parallel device.
–1 cable for interconnecting the battery module and
UPS.
4 to 10 kVA battery module:
–1 battery module.
–Information for warranty registration.
–2 metal pieces for use as handles and screws for
installing the unit in a rack cabinet.
–2 plastic pieces to extend the base of the UPS and
enable the arrangement of the attached battery
module in its mounting as a tower.
–1 cable for interconnecting the battery module and
another module.
•Once the reception is completed, it is advisable to re-pack
the UPS until it is put into service in order to protect it
against mechanical shock, dust, dirt, etc.
•The packaging of the device consists of a wooden pallet,
cardboard or wooden box, depending on the item, expanded
polystyrene corners, polyethylene cover and strapping, all
of which are recyclable materials. When the packaging
requires disposal, it must be carried out in accordance with
current laws.
We recommend keeping it for at least 1 year.
5.1.2. Storage.
•The device should be stored in a dry, ventilated room and
protected from rain, dust, and water or chemical splashes. It
is advisable to keep each device and battery unit in its orig-
inal packaging, as it has been specifically designed to en-
sure maximum protection during transportation and storage.
•For devices that contain Pb-Ca batteries, the
charging times indicated in Tab. 2 of document
EK266*08, determined by the temperature to which they
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
14 SALICRU
are exposed, must be respected, otherwise the warranty
may be invalidated.
•After this period, connect the device to the mains together
with the battery unit if applicable, start it according to the
instructions described in this manual and charge for 12
hours.
In parallel systems, it is not necessary to interconnect
devices before battery charging. Each of them can be
treated independently to charge them.
•Then shut down the device, disconnect it and store the UPS
and batteries in their original packaging, noting the new
date for recharging the batteries on a document as a record
or even on the packaging itself.
•Do not store the devices where the ambient temperature
exceeds 50ºC or drops below -15ºC, as this may cause
degradation of the electrical characteristics of the batteries.
5.1.3. Unpacking.
•The packaging of the device consists of a cardboard box,
expanded polystyrene (EPS) or polyethylene foam (EPE)
corners, polyethylene cover and strapping, all of which are
recyclable materials; consequently, if it requires disposal,
it must be carried out in accordance with current laws. We
recommend keeping the packaging in case it needs to be
used in the future.
•Proceed as follows:
Cut the straps around the cardboard box.
Remove the accessories (cables, brackets, etc. )
Remove the device or battery module from the box with
the help, if necessary, of a second person depending
on the weight of the model or using appropriate
mechanical means.
Remove the protective corners from the device and the
plastic bag.
Do not leave the plastic bag within the reach of
children to avoid danger of suffocation.
Inspect the device before proceeding and, in the event
of finding damage, contact the supplier or, failing that,
our firm.
5.1.4. Transport to the site.
It is recommended to transport the UPS by means of a
pallet jack or the most appropriate method considering the
distance between the two points.
If the distance is considerable, it is recommended to
transport the device in its packaging to the installation site
and then unpack it.
5.1.5. Siting, immobilising and considerations.
•All TWIN RT2 series UPSs are designed to be mounted as
a tower model -vertical arrangement of the device- or rack
-horizontal arrangement- for installation in 19” cabinets,
regardless of whether they operate independently or as
parallel systems, whether or not they have a battery module
or whether the available backup is standard or extended
(greater number of battery modules).
Follow the instructions indicated in the sections relating to
either of the two possibilities, according to the particular
configuration of your device.
•Figs. 5 to 11 show, by way of example, illustrations of a
device with or without battery module. These illustrations
provide help and guidance in the steps to follow, but the
instructions are not intended to refer to a single model,
although, in practice, the actions to be carried out are
always the same for all of them.
•For all instructions regarding connections, refer to section 5.2.
5.1.5.1. Rotation of the control panel with LCD display.
Fig. 5. Rotation of the control panel with LCD display on
the plastic front trim.
•To facilitate the reading of messages on the display when
the device is installed vertically, it is possible to rotate the
control panel clockwise by 90º (see Fig. 5).
•Likewise, reverse the rotation of the control panel if a
device arranged as a tower needs to be installed as a rack.
In this case, the rotation of the control panel will be anti-
clockwise.
•Proceed as follows:
Insert fingertips into the recesses of the plastic trim
around the display and pull outwards.
Rotate the control panel with LCD display 90º to the
right with respect to its initial position and insert it back
into the front.
5.1.5.2. Vertical tower-type mounting.
•Rotate the control panel according to section 5.1.5.1.
•Take the 4 pieces of plastic supplied with the device and
join them together in twos to obtain two bases.
•Place the UPS upright between the two bases at a distance
of 70 mm from each end (see Fig. 6).
15
and install them to obtain two bases to hold the device and
the battery module.
•Place the UPS and battery module upright between the two
bases (see Fig. 7) and at a distance of 70 mm from each
end, similar to as shown in Fig. 7.
Fig. 7. Vertically mounted tower-type model with backup
extension (battery module).
5.1.5.4. Mounting as a rack in a 19” cabinet.
•To mount a device in a 19” rack cabinet, proceed as follows
(see Fig. 8):
Using the supplied screws, fix the two adapter angles
for use as handles on each side of the UPS, respecting
your hand.
To install the device in a rack cabinet, it is necessary
to have internal lateral guides for use as supports.
Alternatively, and upon request, we can supply
universal slides for use as guides, for installation by
the user.
Mount the guides at the required height, ensuring
correct tightening of the fixing screws and appropriate
fitting in the machining, according to each case.
Place the device onto the guides and insert it all the
way to the back.
Depending on the device model and weight, and/or
whether it is installed in the upper or lower part of the
cabinet, it is recommended that two people carry out
the installation operations.
Fix the UPS to the cabinet frame using the screws
supplied with the handles.Fig. 6. Vertical tower-type mounting.
5.1.5.3. Vertical tower-type mounting with backup extension
(battery module).
•The description in this section refers to a device with a
single battery module. For a greater number, proceed in a
similar way.
•Rotate the control panel according to section 5.1.5.1.
•Take the 4 plastic pieces in the form of an angle supplied
with the UPS and the two supplied with the battery module,
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
16 SALICRU
Fig. 8. Rack-type mounting in a 19” cabinet.
5.1.5.5. Rack mounting in a 19” cabinet with backup extension
(battery module).
•This section describes a device with one battery module.
For more battery modules, repeat the same procedure for
each of them.
•To install a device and its battery module in a 19” rack
cabinet, proceed as follows (see Fig. 9):
Using the supplied screws, fix the two adapter angles
for use as handles on each side of the UPS, respecting
your hand. Repeat the same procedure for the battery
module.
To install each unit, UPS and battery module in a rack
cabinet, it is necessary to have internal lateral guides
for use as supports. Alternatively, and upon request,
we can supply universal slides for use as guides, for
installation by the user.
Mount the guides at the required height, ensuring
correct tightening of the fixing screws and appropriate
fitting in the machining, according to each case.
Place the device onto the guides and insert it all the
way to the back. Proceed in the same way for the
battery module.
Depending on the weight of each unit according to the
type of device and battery module, and/or whether it is
installed in the upper or lower part of the cabinet, it is
recommended that two people carry out the installation
operations.
Fix the UPS and the battery module to the cabinet frame
by means of the screws supplied with the respective
handles.
Fig. 9. Rack-mounted model in a 19” cabinet with
backup extension (battery module).
5.1.5.6. Vertical tower-type mounting with PDU.
4 to 10 kVA models are supplied as standard with a PDU
module, designed to be attached to the side of the device.
Fix it to the UPS using the plate supplied as a support as shown
in Fig. 10.
Fig. 10. Vertically mounted tower-type model with PDU.
5.1.5.7. Rack mounting in 19” cabinet with PDU.
Similar to the UPS, the PDU module has angles for use as
handles for mounting in a rack cabinet.
•Proceed as follows (see Fig. 11):
Using the supplied screws, fix the two adapter angles
for use as handles on each side of the PDU, respecting
your hand.
According to each case, perform the steps indicated in
section 5.1.5.4 or 5.1.5.5.
To install the PDU in a rack cabinet, it is necessary to
have internal lateral guides for use as supports, just
like for the UPS and/or battery module. Follow the
guidelines described in section 5.1.5.4 or 5.1.5.5 for
everything related to the guides.
Place the PDU onto the guides and insert it all the way
to the back.
Fix it to the cabinet frame using the screws supplied
with the handles.
17
Fig. 11. Rack-type mounting in a 19” cabinet with PDU.
5.1.5.8. Preliminary considerations before connection.
•In the description of this manual, reference is made to the
connection of terminals and switch operations that are
only available in some versions or devices with extended
backup. Ignore the related operations if your unit does not
feature them.
•Thermal control of these devices is carried out with the
passage of forced air from the front to the rear.
The front surface and about 15 cm on the rear side should
be left free of obstructions to facilitate the free circulation
of air for ventilation.
•Follow and respect the instructions described in this section
referring to the installation of a single device or a system
in parallel.
•Protection or external manual bypass board:
The system will have at least one short-circuit
protection on the UPS’s power supply line.
It is advisable to have an external manual bypass board
fitted with input, output and manual bypass protections
in single systems.
For parallel systems, it is essential to have a
distribution or manual bypass board. The board’s
circuit breakers must be able to isolate a UPS from
the system in the event of a fault and power the loads
with the others, either during periods of preventative
maintenance or during breakdown and repair.
•Upon request, we can supply an external manual bypass
board for a single device or parallel system.
You can also choose to manufacture it, taking into account
the version and configuration of the device or system
available and the documentation contained in the CD-ROM
or pen drive relating to ‘Recommended installation’.
•In the documentation supplied with this user manual
and/or on the CD-ROM or pen drive, information is
available on ‘Recommended installation’ for each input and
output configuration. This documentation includes wiring
diagrams and information about the sizes of the protections
and the minimum cross sections of cables connected to the
device according to their rated working voltage. All values
are calculated for a maximum total cable length of 30 m
between the distribution board, equipment and loads.
For longer lengths correct the cross sections to avoid
voltage drops, respecting the regulations or standards
corresponding to the country.
In the same documentation and for each configuration,
information for ‘N’ units in parallel, as well as backfeed
protection characteristics, is available.
•In parallel systems, the length and cross section of
the cables that run from the distribution or manual
bypass board to each UPS and from these to the board will
be the same for all of them without exception.
•The cross section of the cables must always be considered
in relation to the size of the terminals of the switches, so
that they are correctly fastened across their entire cross
section for optimum contact between the two elements.
•Only rated currents are printed on the nameplate of the
equipment as indicated by the EN-IEC 62040-1 safety
standard. For the calculation of the input current, the power
factor and the equipment's own performance have been
considered.
Overload conditions are considered a non-permanent
and exceptional working mode, and will not be taken
into account in the application of the protections. Do not
connect appliances or devices which may overload the UPS
to the terminals and/or outlets, such as motors.
•If peripheral input, output or bypass elements such as
transformers or autotransformers are added to the UPS or
parallel system, the currents indicated on the nameplates of
these elements must be taken into consideration in order to
use the appropriate cross sections, in compliance with local
and/or national Low Voltage Electrotechnical Regulations.
•When a galvanic isolation transformer is added to a UPS
or parallel system as an optional extra, as standard or
independently, either on the input line, at the output or
both, it must be fitted with protection against indirect
contact (differential circuit breaker) at the output of each
transformer, since, due to its own insulation properties, it
will prevent the tripping of the protections placed on the
primary of the isolation transformer in case of electric shock
on the secondary (output of the isolation transformer).
•We remind you that all the isolation transformers installed
or factory supplied, have the output neutral grounded
through a bridge between the neutral terminal and ground.
If the isolated output neutral is required, this bridge must be
removed, taking the precautions indicated in the respective
local and/or national low voltage regulations.
•This device is suitable for installation in networks
with TT, TN-S, TN-C or IT power distribution
systems, taking into account at the time of installation the
particularities of the system used and the national electrical
regulations of the destination country.
•The SLC TWIN RT2 features terminals for the installation
of an external emergency power off button (EPO) or, failing
that, a single device must be installed to cut the power
supply to the loads in any operating mode.
5.1.5.9. Preliminary considerations before connection, regarding
the batteries and their protections.
•SLC TWIN RT2 devices from 0.7 to 3 kVA incorporate the
batteries in the same box as the device, except for B0, B1
and higher power models.
•The battery protection of the device and of any accumulator
module is always by means of internal fuses that are not
accessible to the user.
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
18 SALICRU
•IMPORTANT FOR SAFETY: If batteries are installed
independently, the accumulator group must be fitted
with a bipolar circuit breaker or disconnect fuse of the size
indicated in Tab. 2.
•Inside the battery module, there are HAZARDOUS
VOLTAGES with risk of electric shock, so it is classified as a
RESTRICTED ACCESS AREA.
•Do not handle the fuse holder or battery circuit
breaker when the device is running.
•If the mains power of the device or parallel system
is cut for longer than a simple intervention and it is
expected that it will be out of service for a prolonged period
time, the system must be shut down completely.
•The battery circuit is not isolated from the input
voltage. Dangerous voltages can occur between the
terminals of the battery group and the earth. Check that
there is no input voltage before intervening on the terminals.
5.1.5.10. Connection elements.
•All of the device’s electrical connections are made from the
back of each unit:
Input and output connection.
–For models up to 3 kVA.
Input by means of a cable with plug, connectable to
the UPS through an IEC connector.
Outputs through IEC connectors.
–For models with power ratings greater than 3 kVA.
Terminals for powering the device and loads.
It is necessary to remove the transparent protective
cover to access the terminals.
Replace the cover after making the
connections to prevent possible accidents
due to direct contact, especially in tower mountings
as there is a greater risk.
Connection to batteries.
–The device and battery module have a polarised
connector.
Remove the screws and protective cover of the
connector before interconnecting it.
–All battery modules have two connectors that
enable backup extension.
Communication connectors available:
–DB9 for RS232. In models up to 3 kVA, the interface
to relays signals are supplied with the same
connector.
–USB to operate the UPS as a PC peripheral.
–Digital input and output (only in models > 3 kVA).
–For connection to external EPO button.
–Auxiliary contact for the manual bypass switch
(only in models > 3 kVA).
DB15 communication bus connectors and analogue
current signal block for connecting systems in parallel
(only in models > 3 kVA).
To access the signal block, it is necessary to remove its
protective cover.
Slot for the integration of one of the optional electronic
communication units. Remove the fixing screws and
plastic cover to enable it to be inserted.
•It is recommended to use terminals on all of the ends of
the cables connected to power terminals (input and output).
•Check that the terminal screws are correctly tightened.
5.2. CONNECTIONS.
5.2.1. Connection of the input.
•0.7 to 3 kVA models:
Take the power cable with plug and IEC connector on
the end and insert the latter into the input connector
of the UPS.
Plug the power cable into an AC power socket.
•4 to 10 kVA models:
As the device has Class I protection against
electric shock, it is essential to install a
protective earth conductor (connect earth ( )).
Connect this conductor before supplying voltage to the
input terminals.
Connect the power cables to the input terminals
respecting the order of the phase (R) and the
neutral (N) indicated on the labelling of the device and in
this manual. Pay particular attention when connecting
the power cables to the input terminals and do not
reverse the connection to the output terminals or vice
versa. Failure to respect the order will result in faults.
Where there are discrepancies between the labelling
and the instructions in this manual, labelling shall
always prevail.
In accordance with safety standard EN-IEC 62040-1, the
facility must be equipped with an automatic backfeed
protection system, such as a contactor, which prevents
the appearance of hazardous voltage or power on the
UPS input line during a mains failure (see Fig. 12).
The standard applies to both individual units and all
UPSs in parallel systems.
There can be no derivation of the line that goes
from the backfeed protection to the UPS, as this
would breach the safety standard.
Warning labels shall be affixed to all primary power
switches installed in areas remote from the equipment
to alert electrical maintenance personnel of the
presence of a UPS in the circuit.
The label shall bear the following text or an equivalent:
Before working on the circuit.
•Isolate the uninterruptible power supply system
(UPS).
•Check the voltage between all terminals, including
the protective earth.
Return voltage risk of the UPS.
19
(3)
(2)
(1)
UPS
Input
Output
R (L)
U (L)
N
N
(1) Automatic backfeed protection system external to the UPS (EN-IEC 62040-1).
(2) Fuse holder and general purpose fuse 250V AC / 3A type F.
(3) 230V AC bipolar contactor with minimum contact spacing of 1.4 mm and coil
with same voltage and the minimum current indicated on the nameplate of
the UPS (input or bypass as appropriate).
For parallel systems, each device must have its own separate backfeed
protection.
Fig. 12. Backfeed protection wiring diagrams.
5.2.2. Connection to IEC connectors or output terminals.
•SLC TWIN RT2 devices feature female IEC output connectors
or terminals depending on the power of the model:
Models up to 2 kVA: 2 groups of 4 x 10A IEC
connectors identified as «OUTPUT» and «OUTPUT
PROGRAMMABLE (P1)», configurable through the
control panel and/or ViewPower.
3 kVA models: same connectors as models up to 2 kVA
and an additional 16A IEC connector.
4 to 10 kVA models: 1 group of output terminals.
In these models, a PDU (power distribution unit) is
supplied to connect to the output terminals of the
UPS. Through it, loads can be powered directly through
the two or three groups of 10 or 16 A IEC connectors
protected by a selective circuit breaker.
•Do not connect loads that in their entirety exceed
the specifications of the device, as this would cause
inconvenient cuts in the power supply of the loads
connected to the output.
•If, in addition to the more sensitive ‘critical loads’, it is
necessary to connect high-consumption inductive loads,
such as for laser printers or CRT monitors, the starting up
of these peripherals will need to be taken into account to
prevent the device from crashing.
We do not recommend connecting loads of this type due to
the amount of power they absorb from the UPS.
5.2.2.1. Connection of loads in models up to 3 kVA.
•Connect the loads to the 10 A IEC connectors.
It is important to consider the two groups of IEC
connectors available, those for ‘critical loads’ and
those for ‘non-critical loads’.
By definition, ‘critical loads’ are considered to be those
that can cause economic damage if they stop functioning
or function incorrectly.
The IEC connectors indicated in Fig. 2 as ‘non-critical
loads’ can be programmed as such through the control
panel. In this case, the backup of the batteries for the
loads connected to the IEC connectors indicated in Fig. 2 as
‘critical loads’ will be reserved. Take into account that they
are set by default as ‘critical loads’.
•The 3 kVA models also have a 16A IEC connector
that enables the connection of a load of the total
power of the device.
5.2.2.2. Connection of loads in 4 to 10 kVA 10 kVA.
•As the device has Class I protection against electric
shock, it is essential to install a protective earth
conductor (connect earth ( )). Connect this conductor
before supplying voltage to the input terminals.
•Connect the loads to output terminals U (L) and N,
respecting the order of the phase and the neutral
indicated on the labelling of the device and in this manual
(see Fig. 2). Where there are discrepancies between the
labelling and the instructions in this manual, labelling shall
always prevail.
•Together with the device, a PDU with several 10 and 16A
IEC output connectors with their respective circuit breaker
is supplied.
When the utility of the PDU is required to power the loads,
it will be necessary to connect its input cables to the output
of the UPS, respecting the following assignment:
Black or brown cable to phase U (L).
Red or blue cable to neutral (N).
Green-yellow cable to earth terminal ( ).
•With regard to the protection that must be placed at the
output of the UPS when the PDU is not used, we recommend
distributing the output power over at least four lines. Each of
them will have a circuit breaker with a value of one quarter
of the rated power. This type of output power distribution
will allow that in the event of a fault in any of the machines
connected to the equipment, which provokes a short circuit,
does not affect more than the line that is broken.
The remaining connected loads will have continuity
assured due to the tripping of the protection, only in the
line affected by the short circuit.
5.2.3. Connection to external batteries (backup extension).
•Failure to comply with the instructions in this
section and Safety Instructions EK266*08 car-
ries a high risk of electric shock and even death.
•SLC TWIN RT2 devices from 0.7 to 3 kVA incorporate the
batteries in the same box as the device, except for B0, B1
and higher power models.
•The battery protection of the device and of any accumulator
module is always by means of internal fuses that are not
accessible to the user.
•IMPORTANT FOR SAFETY: If batteries are installed
independently, the accumulator group must be fitted
with a bipolar circuit breaker or disconnect fuse of the size
indicated in Tab. 2.
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
20 SALICRU
Model Rated voltage
of batteries
Minimum values,
fast type fuses
DC voltage (V) Current (A)
SLC-700-TWIN RT2
(12 V x 3) = 36 V
125
20
SLC-1000-TWIN RT2 32
SLC-1500-TWIN RT2
50
SLC-2000-TWIN RT2 (12 V x 4) = 48 V
SLC-3000-TWIN RT2 (12 V x 6) = 72 V
SLC-4000-TWIN RT2
(12 V x 16) = 192V 400
20
SLC-5000-TWIN RT2 32
SLC-6000-TWIN RT2
SLC-8000-TWIN RT2 40
SLC-10000-TWIN RT2 50
Tab. 2. Protection features between device and battery
module.
•Before starting the connection process between
battery module or modules and device, check that
the device and loads are ‘Off’.
Also, when the batteries are installed by the user
independently, the protection fuse or isolator must be
deactivated.
•Connection of the battery module to the device is made by
means of a cable featuring polarised connectors at both
ends, which is supplied with the first one. Two connectors
are available for this purpose on the device and battery
module.
Similarly, the battery modules feature two connectors that
allow the linking of modules in parallel.
•Each battery module is independent for each device.
Two devices must not be connected to the
same battery module.
Likewise, in parallel systems (4 to 10 kVA models), with
each device connected to its battery module or modules,
they should be considered as single devices that are
independent of each other.
•Fig. 13 shows the connection of a 10 kVA device in a
rack arrangement with two battery modules. For a larger
number, proceed in a manner similar to those shown in the
illustration.
Fig. 13. Connection to battery modules.
5.2.4. Connection of the input earth terminal ( ) and the
earth connection terminal ( ) .
•As the device has Class I protection against electric
shock, it is essential to install a protective earth
conductor (connect earth ( )). Connect this conductor
before supplying voltage to the input terminals.
•Make sure that all of the loads connected to the UPS are only
connected to its earth connection terminal ( ). Failure to
limit the earthing of the load or loads and battery module or
modules to this single point will create earth return loops
that will degrade the quality of the power supplied.
•All terminals identified as an earth connection ( ) are
connected to each other, to the earth terminal ( ) and to
the device’s earth.
5.2.5. Terminals for EPO (emergency power off).
•The UPSs have two terminals for the installation of an
external emergency power off (EPO) output button.
•The device is dispatched from the factory with its EPO
circuit set to closed (NC) by default. In other words, the
UPS will cut the output power supply, emergency power
off, when the circuit is opened:
Either by removing the female connector from the socket
where it is inserted. This connector has a cable connected
as a jumper that closes the circuit (see Fig. 14-A).
Or by pressing the button external to the device
belonging to the user installed between the terminals
of the connector (see Fig. 14-B). The connection on the
button must be in the normally closed contact (NC), so
it will open the circuit when activated.
The reverse functionality can be selected through the
communications software and control panel.
Except for specific cases, we advise against this type
of connection in view of the purpose of the EPO button,
since it will not act upon an emergency request if either
of the two cables that run from the button to the UPS is
accidentally cut.
By contrast, this anomaly would immediately be detected
in a closed EPO circuit, with the inconvenience of an
unexpected cut in the powering of the loads, but a
guarantee of effective emergency functionality.
•To recover the normal operating state of the UPS, it is
necessary to insert the connector with the jumper in its
receptacle or deactivate the EPO button. The device will
be operational.
A B
Fig. 14. Connector for external EPO.
21
5.2.6. Terminals for digital input and output to relay. Only in
models with power ratings > 3 kVA.
•The device has a four-terminal connector for a digital input
and output to relay (see Fig. 15).
‘Start/Stop’ digital input. With the device running,
apply a sequential voltage of between 5 and 12 V DC to
reverse its state.
The static bypass function of the UPS is enabled
by default. In this condition, when the inverter
shuts down, the output terminals will supply voltage
through the internal static bypass.
Disable the bypass function through the control panel if
the output supply needs to be cut when giving the shut
down command.
Error or fault dry contact. Any error or fault will modify
the state of the normally open (NO) 24V DC 1A contact.
(PAY ATTENTION to the voltage and current applied).
– Digital input
+ Digital input
Output to relay,
error or fault
Fig. 15. Digital input/output to relay connector.
5.2.7. Manual bypass auxiliary contact terminals. Only in
models with power ratings > 3 kVA.
•The SLC TWIN has a signal block through which it is
possible to activate the shut down command for the UPS’s
inverter when closing the circuit. This normally open
contact is intended for connection to an external manual
bypass switch or disconnector. (see Fig. 16).
•On the distribution boards with manual bypass that
we supply upon request, there is a two-terminal block
connected in parallel to the normally open auxiliary contact
of the board’s manual bypass switch or disconnector. The
manual bypass auxiliary contacts are of the advanced type
when closing.
•The connection between the auxiliary contact of the board
and the UPS or UPSs is in parallel. This way, any of the
auxiliary contacts that close the circuit will activate the
shut down command of the inverter, transferring the
powering of the loads to the internal static bypass, unless
this is disabled through the control panel, in which it will
cut the powering of the loads.
•In parallel systems, the distribution board’s manual
bypass switch or disconnector will have an auxiliary
contact block for each device. Under no circumstances
should the different contacts be joined together as this
would connect the different earths of the control of each
UPS.
•In the event of acquiring a manual bypass board
through another conduit, check that it has this
auxiliary contact and connect it to the terminal block of the
UPS or each device in parallel systems. The type of auxiliary
contact has to necessarily be advanced when closing.
•It is ESSENTIAL, as a safety measure for the
assembly, including the loads, to connect the UPS’s
auxiliary bypass contact to the block of the same
functionality on the manual bypass board. This will prevent
any incorrect action on the manual bypass disconnector
when the UPS is running from causing total or partial failure
of the system.
This is also applicable for systems in parallel.
Fig. 16. Terminal block for connection to the inverter shut-
down auxiliary contact of the manual bypass board.
5.2.8. Connection in parallel, only in models with power
ratings > 3 kVA.
5.2.8.1. Introduction in redundancy.
N+X is usually the most reliable power structure. N represents
the minimum number of devices that the total load needs; X re-
presents the number of redundant devices, that is, the number of
faulty UPSs that the system can simultaneously allow. The higher
X is, the greater the reliability of the system. For occasions where
reliability is essential, N+X will be the optimum mode.
Up to 3 devices can be connected in parallel to configure a
shared output or power redundancy.
5.2.8.2. Installation and operation in parallel.
•The communications line -COM- constitutes a very
low voltage safety circuit. To preserve the quality
must be installed separately from other lines carrying
dangerous voltages (power distribution line).
•Parallel connections and current signal bus.
Use the 15-wire signal cable with mesh and DB15
connectors at the ends to connect a maximum of 3 devices.
Each cable has a male and a female connector at the ends
which must be connected to link two devices. It is essential
to close the communications loop of the parallel bus and
the current signal bus through the cable with connectors
(see Fig. 17).
The length of the cables related to the parallel bus is ap-
prox. 1.5 metres and must not be prolonged under any
circumstances due to the risk of interference and communi-
cation failures that this would entail.
Communication bus.
Current signal bus
Fig. 17. Communication and current signal connections
for system in parallel.
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
22 SALICRU
•When installing systems in parallel, it is necessary to
provide them with a board equipped with individual input
and output protections, as well as a manual bypass with
mechanical locking, see Fig. 18.
This protections board will enable a single device in the
system to be isolated in the event of a fault and the loads
to be powered with the rest during preventive maintenance
or repair. It also allows the removal of a device in parallel
and its replacement or reintegration once repaired without
interrupting the powering of the loads at any time, provided
that the power of the operational device permits it.
Upon request, we can supply a manual bypass board for a
two-device system in parallel.
•Follow the connection procedure for the input described in
section 5.2.1.
•Follow the connection procedure for the output (loads)
described in section 5.2.2.
•Follow the procedure established for the connection of the
battery module or devices with backup extension described
in section 5.2.3.
BATTERY LINEBYPASS FAULT
Input circuit breaker
Output circuit breaker
Manual Bypass
UPS No. 1
Input
To loads
UPS No. 3
BATTERY LINEBYPASS FAULT
Fig. 18. Parallel installation of two 4 to 10 kVA UPSs with
protections panel and manual bypass.
•In parallel systems, the length and cross section of
the cables that run from the protections board to
each UPS and from the UPSs to the board will be the same
for all of them without exception.
In the worst case, the following deviations must be strictly
observed:
When the distance between the UPSs in parallel and
the circuit breaker board is less than 20 metres, the
difference in length between the input and output
cables of the device must be less than 20%.
When the distance between the UPSs in parallel and
the circuit breaker board is more than 20 metres, the
difference in length between the input and output
cables of the device must be less than 10%.
5.2.9. Communication port.
5.2.9.1. RS232 and USB port.
•The communications line -COM- constitutes a very
low voltage safety circuit. To preserve the quality
must be installed separately from other lines carrying
dangerous voltages (power distribution line).
•The RS232 and USB interfaces are useful for the monitoring
software and updating the firmware.
•It is not possible to use both the RS232 and USB ports at
the same time.
•The DB9 connector supplies the RS232 signals and, in
models up to 3 kVA, the normally open (NO) potential-free
contacts using optocouplers.
The maximum voltage and current applicable to these
contacts is 30V DC and 1A.
Also, there is a «Shutdown» input that allows turning off
the inverter, when a voltage between 10 a 12 V is applied
for 1 second at this input.
•The RS232 port consists of the transmission of serial data
in such a way that a large amount of information can be
sent through a communication cable with only 3 wires.
•The USB port is compatible with the USB 1.1 protocol for
communication software.
Pin # Description Input / Output
1End of backup Output
2TXD for RS232 Output
3RXD for RS232 Input
4GND for shutdown Earth
5GND for RS232 Earth
6Common relays -
7Shutdown order Input
8Low battery Output
9Mains fault Output
Tab. 3. Pinout of DB9 connector, RS232.
5 1
9 6
2 1
3 4
Fig. 19. DB9 connectors for RS232 and USB.
5.2.10. Smart slot for the integration of an electronic
communication unit.
•Optional electronic communication units include:
Interface to relays to terminals, not programmable.
SNMP adapter.
Modbus RS485 adapter.
23
•The corresponding documentation is supplied with each
option. Read it before starting installation.
Installation.
•Remove the protective cover from the device’s slot.
•Take the corresponding electronic unit and insert it into the
reserved slot. Make sure that it is properly connected, for
which it is necessary to overcome the resistance caused in
the connector located in the slot.
•Make the necessary connections in the terminal block or
connectors available according to each case.
•Fit the new protective cover supplied with the interface to
relays card and secure it with the screws from the old cover.
•For more information, contact our T.S.S. or our nearest
distributor.
5.2.11. Protection against voltage spikes for the modem /
ADSL / fax, etc., line. .
•The communications line -COM- constitutes a very
low voltage safety circuit. To preserve the quality
must be installed separately from other lines carrying
dangerous voltages (power distribution line).
•Connect the main line for the modem / ADSL / fax, etc., to
the RJ45 connector of the device, identified as ‘Input’.
•Connect the modem / ADSL / fax, etc., to the RJ45 connector
of the device, identified as ‘Output’.
5.2.12. Software.
•Download of free ViewPower software.
ViewPower is a UPS monitoring software which provides a
user-friendly interface for monitoring and control. It features
an auto shutdown function for systems consisting of several
PCs in case of power failure. The software enables users to
monitor and control any UPS in the same LAN through an
RS232 or USB communications port, regardless of how far
away they are from each other.
Fig. 20. View of ViewPower’s main screen.
•Installation procedure:
Go to the web page:
http://support.salicru.com
Select the required operating system and follow the
instructions described on the web page to download
the software.
5.2.13. Considerations before start-up with connected loads.
•It is recommended to charge the batteries for at
least 12 hours before using the UPS for the first time.
For this, it will be necessary to supply voltage to the
device and turn the circuit breaker at the back to ‘On’.
The battery charger will work automatically.
For the battery modules.
For the models with batteries external to the device or
backup extension modules, it will also be necessary to
turn the fuse or circuit breaker of the batteries arranged
between each one to ‘On’.
•Although the device can operate correctly without charging
the batteries for the specified 12 hours, the risk of a
prolonged power cut during the first hours of operation and
the UPS’s available backup time should be assessed.
•Do not start up the device and loads completely until
indicated in Chapter 6.
When it is done, however, it should be carried out gradually
to avoid possible difficulties, if not at the first start-up.
•If, in addition to the more sensitive loads, it is necessary
to connect high-consumption inductive loads, such as for
laser printers or CRT monitors, the starting up of these
peripherals will need to be taken into account to prevent
the device from crashing.
For this type of load considered NON-PRIORITY, a group
of programmable terminals is available depending on the
model. Depending on the programming of these, the power
supply may or may not be affected in the event of mains
failure.
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
24 SALICRU
6. OPERATION.
6.1. START-UP.
6.1.1. Checks before start-up.
•Make sure that all of the connections have been made
correctly and with sufficient tightening torque, following
the instructions on the labelling of the device and in
Chapter 5.
•Check that the UPS and battery module or modules switches
are ‘Off’.
•Make sure that all loads are ‘Off’.
Shut down the connected loads before starting the
UPS and start the loads, one by one, only when the
UPS is running. Before shutting down the UPS, check that
all of the loads are ‘Off’.
•It is very important to proceed in the established order.
•For views of the UPS, see Fig. 1 to Fig. 3.
•In Fig. 18 , a distribution board with manual bypass is re-
presented conceptually for a parallel system, representative
for a single device, with the number of switches adapted.
6.2. UPS START-UP AND SHUTDOWN.
6.2.1. UPS start-up with mains voltage.
•Check that the power connection is correct.
•Supply voltage to the device (turn the input protection on
the distribution board or manual bypass to ‘On’. If the board
has an output switch, turn it to ‘On’.
•Turn the battery switch to ‘On’ (models B0 and B1).
•In 4 to 10 kVA models, turn the UPS’s input circuit breaker
located at the back of the device to ‘On’.
The output terminals will have voltage through the
device’s internal static bypass block.
The fan or fans, depending on the model, will start to
function.
Then the main start screen will be displayed after a test of
the device.
•Press the ‘ON’ button for more than 2 seconds, the audible
alarm will sound for 1 second and the UPS will start up.
•The UPS is set to ‘Normal mode’ after a few seconds. If the
mains voltage is incorrect, the UPS will switch to ‘Battery
mode’, without interrupting the power supply at the output
terminals.
•Start the load or loads, making sure that the rated power of
the device is not exceeded.
6.2.2. UPS start-up without mains voltage.
•If it has a distribution board, turn the input and output
protections to ‘On’.
•Turn the battery switch to ‘On’ (models B0 and B1).
•Turn the device’s input circuit breaker to ‘On’.
•Press the ‘ON’ button for more than 2 seconds, the audible
alarm will sound for 1 second and the UPS will start up.
The fan or fans, depending on the model, will start to
function.
Then the main start screen will be displayed after a test of
the device.
On the 4 to 10 kVA models, it is necessary to press the ‘ON’
button for a second time, about 5 to 7 seconds after the first
press, for longer than 2 seconds.
•The UPS is set to ‘Battery mode’ after a few seconds.
Depending on the level of charge of the batteries, the
residual backup available may be very limited. Consider the
risk involved in operating without mains and discharged
batteries.
If the mains voltage returns, the UPS will transfer to
‘Normal mode’ without interrupting the power supply at
the output terminals.
•Start the load or loads, making sure that the rated power of
the device is not exceeded.
6.2.3. UPS shutdown with mains voltage.
•Shut down the load or loads.
•Press the ‘OFF’ button for more than 2 seconds to shut down
the inverter. The audible alarm will sound for 1 second. The
device will be set to ‘Bypass mode’.
The output terminals will have voltage through the
device’s internal static bypass block.
•To cut the UPS’s output voltage:
Disconnect the input plug of the power socket on
models up to 3 kVA and from 4 to 10 kVA and turn the
input circuit breaker located at the back of the device
to ‘Off’.
Or simply turn the input and output protections of the
UPS’s distribution board on any model to ‘Off’.
A few seconds later, the LCD screen turns off and the entire
device will be out of service.
6.2.4. UPS shutdown without mains voltage.
•Shut down the load or loads.
•Press the ‘OFF’ button for more than 2 seconds to shut down
the inverter. The audible alarm will sound for 1 second. The
device will leave the output terminals without voltage.
A few seconds later, the LCD screen turns off and the entire
device will be out of service.
•To leave the assembly completely isolated, turn the input
and output switches of the board to ‘Off’.
25
6.3. OPERATING PROCEDURE FOR A PARALLEL SYSTEM
(ONLY IN 4 TO 10 KVA MODELS).
•In parallel systems, check that the programming of Output 2
is the same on all of them to avoid conflicts.
•The operating procedure established here is for devices
with a configuration determined by factory default.
•Check that the load or loads and/or the output circuit
breakers on the distribution board are ‘Off’.
•Turn “On” the input circuit breakers on the distribution or
manual bypass board and those on each UPS in 4 to 10 kVA.
The UPSs supply output voltage from the internal static
bypass of each unit. Observe the LCD screen of the control
panel for any warnings or error information. Measure the
output voltage at the terminals of each UPS separately to
check that the voltage difference between them is less
than 1 V. If the difference is greater than 1 V, check the
connection and the associated instructions.
•If everything is correct, proceed. Press the ‘ON’ button on
all of the UPSs for more than 2 seconds and each of them
will start up. All of the UPSs will transfer to ‘Normal mode’.
Measure the output voltage at the terminals of each UPS
separately to check that the voltage difference between
them is less than 0.5 V. If the difference is greater than 1 V,
the UPSs will need to be adjusted (contact T.S.S.).
•If everything is correct, proceed. Press the ‘OFF’ button for
more than 2 seconds on all of the UPSs and each of them
will begin to shut down the device.
Turn the input circuit breakers on the distribution or
manual bypass board to ‘On’. The output terminals on the
distribution board will be under potential through the static
bypass of the device.
•Press the ‘ON’ button for more than 0.5 seconds on all of
the UPSs and each one of them will begin to start up in
order to finally leave the system in parallel operation in
‘Normal mode’.
•Start the load or loads.
•Do not leave a floating UPS with respect to the
others. There must always be a connection between
the neutrals, either input or output. Do not open the input
and output circuit breakers of a UPS at the same time on
the distribution board while the UPS running. Otherwise, a
fault in the UPS may occur and the connected loads may
shut down
6.4. HOW TO ADD A UPS TO A SYSTEM IN PARALLEL
OPERATION OR TO A FUNCTIONING SINGLE UPS
(ONLY IN 4 TO 10 KVA MODELS).
•To operate the parallel system, it is necessary to have a
manual bypass board for the parallel system.
In the event of not having one, the shutdown of the entire
system and the loads powered by it must be anticipated.
•The steps to follow are for the addition of a device to a
system with two units. To incorporate a device into a
system with only one UPS, proceed in the same way.
•The distribution board must have input and output switches
for each UPS, in addition to the one for the manual bypass.
Otherwise, it will be necessary to adapt the board or
acquire a new one if it has not been previously anticipated.
•Since it is necessary to change the parallel bus connection
to incorporate the new device into the system (cable
with DB15 connectors), it will be necessary to switch the
powering of the loads to the manual bypass.
Proceed as follows:
Press the ‘OFF’ button on all of the UPSs for more than
2 seconds to shut down the inverter in all of them. The
audible alarm will sound for 1 second. The devices
that make up the current parallel system will switch to
‘Bypass mode’.
Switch the devices to manual bypass using the
following procedure:
1. Remove the mechanical lock on the distribution
board’s manual bypass switch or disconnector and
turn it to ‘On’.
2. Remove the protective cover of the manual bypass
switch, which is located at the back of each unit,
and turn all of the switches to ‘BYPASS’.
Take into consideration that in ‘Bypass mode’ or
with the switch turned to ‘BYPASS’, the loads
will be exposed to voltage and frequency variations and
cuts or micro-cuts in mains power, so, if possible, it is
recommended to choose a day with lower probability of
failure (days without fluctuations, days without storms,
etc.) and a certain speed in the process.
Turn the input circuit breakers of each device to ‘Off’.
Turn the input and output circuit breakers of the board
to ‘Off’.
•Before incorporating the new TWIN RT2 into the system,
carry out the appropriate steps to leave it in the same
condition as the others (input switch turned to ‘Off’ and
manual bypass switch without protective cover turned to
‘BYPASS’).
•Incorporate the new UPS to the system following the
procedure established in section 5.2.8.2 for connection in
parallel.
•Disconnect the communication bus between the first and
last device, and reconnect it including the new UPS. The
bus must be closed for proper operation.
•Turn the input circuit breakers of each UPS on the
distribution board to ‘On’.
•Turn the input circuit breakers of each UPS to ‘On’.
Turn the internal manual bypass switch of each UPS to UPS.
The output switches of each UPS on the distribution board
must be open.
Fit the switch lock cover of each UPS
The UPSs supply output voltage from the internal static
bypass of each unit. Observe the LCD screen of the control
panel for any warnings or error information. Measure the
output voltage at the terminals of each UPS separately to
check that the voltage difference between them is less
than 1 V. If the difference is greater than 1 V, check the
connection and the associated instructions.
•If everything is correct, proceed. Press the ‘ON’ button on
all of the UPSs for more than 2 seconds and each of them
will start up. All of the UPSs will transfer to ‘Normal mode’.
Measure the output voltage at the terminals of each UPS
separately to check that the voltage difference between
them is less than 0.5 V. If the difference is greater than 1 V,
the UPSs will need to be adjusted (contact T.S.S.).
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
26 SALICRU
•If everything is correct, proceed. Press the ‘OFF’ button on
all of the UPSs for more than 2 seconds and each of them
will begin to shut down the device.
Turn the output circuit breakers on the distribution board
to ‘On’. The output terminals on the board will be under
potential through the static bypass of the devices, the same
potential as the manual bypass line.
•Turn the manual bypass switch or disconnector on the
distribution board to ‘Off’ and reposition the mechanical
lock to prevent possible accidents
•To prevent incorrect operations, it is necessary to fit
the mechanical lock and the covers of the manual
bypass mechanisms and their fixing screws.
•Press the ‘ON’ button on all of the UPSs for more than 2
seconds and each of them will start up, in order to finally
leave the system in parallel operation in ‘Normal mode’.
•The load or loads are again protected by the parallel system.
6.5. HOW TO REPLACE A FAULTY UPS IN AN
OPERATIONAL PARALLEL SYSTEM.
•The steps to follow to replace a UPS in a system consisting
of two or three units are the same as those for incorporating
a device, except for the difference in the type of action to
be carried out. Proceed therefore as described in section
6.4.
27
7. CONTROL PANEL WITH LCD DISPLAY.
7.1. GENERAL INFORMATION FOR THE SERIES.
7.1.1. Information represented by the display.
Input voltage and
battery information
Fault information
Information about
battery charge level
Discharge time
information
Information about
the charge level
connected to the
output
Information about the operating mode of the device
Output voltage
information
Audible alarm
disabled
Fig. 21. Graphic and textual information shown on the display.
7.1.2. Common messages shown on the LCD display.
Display Meaning
Backup time information.
Indicates the backup time in analogue clock mode.
Indicates the backup time in digital clock mode.
H - Hours, M - Minutes, S - Seconds.
Fault information.
Indicates as a warning that a fault has occurred.
Indicates a numerical code from the settings menu shown in
Table 9 of Section 7.5.
Audible alarm information.
Indicates that the audible alarm is disabled.
Output voltage information.
Indicates the output voltage or frequency. V AC - Output
voltage, Hz - Output frequency.
Information about the charge level connected to the output.
Indicates the charge level connected to the output as a %,
by displaying four equivalent segments respectively in the
following proportion: 0-25 %, 26-50 %, 51-75 % and 76-100
%.
Information about programmable outputs
P1 Indicates that the programmable outputs are activated.
Information about the operating mode of the device.
BATTERY Indicates that the device is supplying output voltage from
the battery (battery mode).
BYPASS Indicates that the device is activated in BYPASS mode.
ECO Indicates that the device is supplying output voltage from
the bypass (ECO mode).
CHARGING Indicates that the device is in charging mode.
CF/CVCF Indicates that the device is in converter mode.
ONLINE Indicates that the inverter is working.
P1 Indicates that the output is activated.
Information about battery charge level.
Indicates the battery charge level as a %, by displaying
four equivalent segments respectively in the following
proportion: 0-25 %, 26-50 %, 51-75 % and 76-100 %.
BATT
FAULT
Indicates that the battery is not connected.
Indicates low battery voltage level.
Information about input and battery voltage.
Indicates the input voltage, frequency or battery voltage.
V AC - Input voltage, V DC - Battery voltage, Hz - Input
frequency.
Tab. 4. Information shown on the LCD panel of the control
panel and its meaning.
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7.1.3. Common abbreviations shown on the display.
Code On display Meaning
ENA A
U
EEnabled.
DIS d1S Disabled.
ATO AtO Automatic.
BAT bAt Battery.
NCF CF
U
Normal mode, working mode as UPS.
CF CF Working mode as frequency converter.
SUB SUb Subtract.
ADD Add Add.
ON ON Start-up.
OFF OFF Shutdown.
FBD Fbd Not permitted.
OPN OP
U
Permitted.
RES RES Reserved.
N.L
U
.LNeutral lost.
CHE CHE Check.
OP.V OP.UOutput voltage
PAR PAR Parallel, 001 refers to the first.
EPO EP Emergency power off.
FR FR Frequency.
OPL OPL Load percentage.
ESC ESC Escape.
HLS HLS Upper voltage limit for transfer to battery mode.
LLS LLS Lower voltage limit for transfer to battery mode.
AO AO EPO normally open.
AC AC EPO normally closed.
EAT EAt Estimated backup time.
Code On display Meaning
RAT tAt Current time in backup mode.
Ok OK Ok.
SD Sd Shutdown.
BL bL Low battery.
OL OL Overload.
OI OI Input overcurrent
NC NC Battery not connected
OC OC Battery overcharge
SF SF Connection error. Rotate the connection of the
input, phase and neutral cables.
TP TP Overtemperature.
CH CH Charger
BF bF Battery failure, low voltage.
BV bV Bypass voltage out of range.
FU FU Bypass frequency out of range.
BR bR Replace batteries.
EE EE Internal EEPROM error.
Tab. 5. Abbreviations shown on the LCD display.
29
7.2. CONTROL PANEL FOR MODELS UP TO 3 KVA.
7.2.1. Composition of the control panel with LCD display.
•The control panel consists of:
Three buttons with the functions described in Tab. 6.
An LCD display with backlighting.
ON/MUTE SELECT OFF/ENTER
Fig. 22. View of the control panel.
Button Description
ON/MUTE
- Starting up the UPS.
Press the button for at least 2 seconds.
- Muting the alarm.
Press the button for at least 3 seconds to mute or unmute
the audible alarm.
It is only possible to mute the battery discharge alarm,
which necessarily means that the device is running and
operating in battery mode. Any other warning or error alarm
cannot be muted.
- Button to navigate upwards.
When this button is pressed in UPS settings mode, it will
move upwards through the menu structure in relation to the
point where it is located, accessing the previous variable
with each press.
- Activating the battery test.
Press this button for 3 seconds while in normal or frequency
converter (CF) mode. At the end of the test, it returns to the
respective mode.
SELECT
- Settings or configuration mode.
Press this button for at least 3 seconds to access this mode
when the inverter of the UPS is shut down (bypass mode).
- Button to navigate downwards.
When this button is pressed in UPS settings mode, it will
move downwards through the menu structure in relation
to the point where it is located, accessing the following
variable with each press.
OFF/ENTER
- UPS shutdown.
Press this button for at least 2 seconds.
- Confirmation of selection.
Press this button to confirm selection in the device’s settings
mode.
Tab. 6. Functionality of the control panel buttons.
7.2.2. Audible alarms.
Description Alarm modulation or tone Possibility of
muting
State of the UPS
Bypass mode Beep every 10 seconds.
YesBattery mode Beep every 5 seconds.
Fault Continuous.
Warning
Overload Beep every second. Yes
Other Beep every 1 seconds.
Faults
All Continuous. Yes
Tab. 7. Audible alarms.
7.2.3. Location of the adjustment parameters on the display.
Parameter 1
Parameter 2 Parameter 3
Fig. 23. Arrangement of the parameters on the LCD display.
•Parameter 1:
Code of the settings menu. For more information consult
Tab. 8.
•Parameters 2 and 3 are the configuration or value options
for each settings menu.
Select with buttons ‘ ’ or ‘ ’ to modify the menus
or parameters.
All of the parameter settings are saved when the
UPS is completely shut down and provided that it
has connected batteries, whether internal or external.
If a complete shutdown is not carried out, the setting will
not be saved to the memory.
7.2.4. Settings.
Tab. 8 shows a summary of parameter 1’s adjustable codes for
each operating mode and Fig. 24 shows the structure of the
menu tree with the operating mode for the settings.
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Code Description
Bypass mode/
No output
mode
AC mode ECO mode CF mode Battery
mode
Battery
test
01 Output voltage. YES - - - - -
02 Frequency converter state. YES - - - - -
03 Output frequency. YES - - - - -
04 ECO enable/disable mode. YES - - - - -
06 Bypass state (UPS ‘Off’). YES YES ----
09 Programmable output state. YES YES YES YES YES YES
10 Programmable output configuration. YES YES YES YES YES YES
11 Backup limitation configuration. YES YES YES YES YES YES
12 Total battery pack Ah configuration. YES YES YES YES YES YES
15 EPO logical configuration. YES YES -YES YES -
17 Viewable backup time configuration. YES
Tab. 8. Parameter 1 codes list. Description and settings
7.2.4.1. Ah configuration of parameter ‘12’.
•Standard models are configured with factory default
settings, so it is not necessary to perform any actions to
adjust this parameter.
For extended backup and B1 models, however, it is
necessary to adjust the value to the total capacity of the
battery pack. Any alteration of the battery pack will entail a
readjustment, so it will be necessary to adapt the value in
the event of future expansions.
•There are basically two reasons to perform the adjustment
without it affecting the correct functioning of the device if it
is not done, although it is more than recommended:
a. The charging current of the batteries is directly related
to the capacity of the battery pack.
The charger will adapt the charging factor automatically
according to the value of the total capacity entered, up
to the maximum of the current that is possible.
This results in faster charging and therefore greater
availability and more immediate backup in the event of
frequent mains failures.
b. Entering the value in Ah is vital for the control to be
able to calculate and show the backup available on the
LCD display, without further alterations.
The settings values are determined as follows:
1. Devices with backup extension.
They are configured by a standard model plus the battery
module or modules. The capacity of the batteries of both
are indicated in the following Tab. 9 and Tab. 10.
Example for an SLC 1500 TWIN RT2 and backup extension
module 698BU000003:
9 Ah + 18 Ah = 27 Ah (value for parameter 12).
UPS model Internal batteries
Voltage (V) Capacity (Ah)
SLC 700 TWIN RT2 36 7
SLC 1000 TWIN RT2
SLC 1500 TWIN RT2 48 9SLC 2000 TWIN RT2
SLC 3000 TWIN RT2 72
Tab. 9. Characteristics of batteries in standard devices.
Battery module
Code Voltage (V) Capacity (Ah)
698BU000001 36 14 (2 x 7)
698BU000002 36
18 (2 x 9)
698BU000003 48
698BU000004 72
Tab. 10. Characteristics of batteries in modules.
2. Device B1.
B1 models do not have batteries in the same box, so a
battery module will always be necessary or the user will
have them.
Example for an SLC 1500 TWIN RT2 B1 and three backup
extension modules 698BU000003:
(3 x 18 Ah) = 54 Ah (value for parameter 12).
31
O1
3 sec.
Output voltage
selection
230 (*)
240
208
200
220
•The values indicated with(*) are factory default settings.
•All settings can be carried out in operation with bypass parameter ‘06’
either enabled or disabled, corresponding respectively to ‘ByPA’ normal
mode or ‘STby’.
•To carry out any modification of the configuration, follow the indicated
sequence with the inverter necessarily Off.
•To exit the main menu from any position, press buttons + together.
O2
O3
O4
O6
O9
1O
11
12
15
17
OO
Selection of device
as UPS or CF
Selection of device
as CF
ECO mode
selection
Static bypass
selection
Non-critical load
output sockets
Backup time for
non-critical load
output sockets
Backup time for all
output sockets
Battery pack Ah
capacity
EPO contact
configuration
Time shown
configuration
DIS (*)
ENA
BAT50 (*)
BAT60
DIS (*)
ENA
DIS (*)
ENA
DIS (*)
ENA
0.. 999
DIS (*)
0.. 999
7.. 999
AO (*)
AC
EAT (*)
RAT
ESC
DIS Frequency converter disabled. Device functions as a UPS.
ENA Frequency converter enabled. In this operating mode, the
static bypass is disabled by default.
BAT 50 UPS with output frequency of 50 Hz.
BAT 60 UPS with output frequency of 60 Hz.
CF 50 (1) CF with output frequency of 50 Hz.
CF 60 (1) CF with output frequency of 60 Hz.
(1) With parameter ‘02’ = ‘ENA’, the ‘CF 50’ or ‘CF 60’ variables
are displayed instead of ‘BAT 50’ or ‘BAT 60’.
DIS ECO mode disabled.
ENA ECO mode enabled.
DIS Bypass disabled, with the inverter of the UPS ‘Off’.
ENA Bypass enabled, with the inverter of the UPS ‘Off’.
DIS Programming of output sockets for non-critical loads disabled.
ENA Programming of output sockets for non-critical loads enabled.
Backup time setting for non-critical load output sockets when
operating in Battery mode.
Default setting is 999.
Backup time setting for all output sockets when operating in Battery
mode.
Default setting is ‘DIS’, deactivated. Take into consideration that the
available backup will depend on battery charge level
Note: When it is at ‘0’, the backup time will be 10 seconds.
Battery pack Ah. Do not change for standard models and adjust in B1
or extended backup models (see section 7.2.4.1).
Although the device will still work without adjusting this value on the
display, the time shown in minutes will be incorrect and the battery
charging current will not automatically adjust to them.
EPO button contact type setting.
AO EPO activated when circuit opened.
AC EPO activated when circuit closed.
EAT Shows available backup time.
RAT Shows elapsed backup time.
Fig. 24. Settings menu.
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7.2.4.2. Operating mode / Description of state.
Operating mode / state
UPS start-up
Description. When the UPS is started, the display screen of this mode is displayed for a few seconds to initialise the CPU and system.
LCD display.
No output mode
Description. The UPS is off and no output voltage is available, but it is charging the batteries.
LCD display.
AC mode
Description. If the input voltage is within the range of the device, the UPS will supply stable AC sine-wave voltage to the load or loads, and charge the
batteries.
LCD display.
ECO mode
Description. If the input voltage is within the regulation ranges and ECO mode is activated, the UPS supplies the output voltage from the bypass in ECO
mode (energy saving).
LCD display.
CF mode
Description. When the input frequency is between 46 and 64 Hz, the UPS can be set to a constant output frequency of 50 or 60 Hz. The device will still
charge the batteries in this mode.
LCD display.
Battery mode
Description. Description: When the input / frequency voltage is not within the predefined range of the device or there is an AC mains failure, the UPS
powers the loads from the batteries for a limited time due to their own capacity and activates the audible alarm modulated every 5 seconds.
LCD display.
Bypass mode
Description. When the input voltage is within the range but the UPS is overloaded, the system will automatically transfer to bypass mode or the transfer
to this mode can be forced through the front panel. The audible alarm beeps every 10 seconds.
LCD display.
33
Operating mode / state
Error or fault
state
Description. When an error occurs, the ERROR icon and the fault code are displayed.
LCD display.
Tab. 11. Operating modes.
7.2.4.3. Warning or alert codes.
Code Warning or alert description
bl Low battery
Ol Overload
OI Input overcurrent
NC Battery not connected
OC Battery overcharge
SF Input socket connection fault
EP EPO enabled
TP Overtemperature
CH Charger fault
bF Battery fault
bV Static bypass voltage out of range
FU Unstable static bypass frequency
bR Replace batteries
EE EEPROM error
Tab. 12. Warning or alert code.
7.2.4.4. Error or fault codes.
Code Error or fault description
01 DC bus start-up fault.
02 DC bus overvoltage.
03 DC bus undervoltage.
11 Inverter soft start fault
12 High voltage in the inverter
13 Low voltage in the inverter
14 Inverter output short-circuited
27 Battery voltage too high
28 Battery voltage too low
2A Battery charger short-circuited at its output
41 Overtemperature
43 Output overload
45 Charger fault
49 Input overcurrent
Tab. 13. Error or fault code.
7.2.4.5. Warning or alert indicators.
Code Icon (flashing) Audible alarm
Battery voltage low.
Modulated every 2 seconds
Overload.
Modulated every 1 seconds
Input overcurrent Modulated twice every 10
seconds
Disconnected battery Modulated every 2 seconds
Battery overcharge
Modulated every 2 seconds
Input socket
connection fault Modulated every 2 seconds
EPO enabled Modulated every 2 seconds
Overtemperature Modulated every 2 seconds
Charger fault Modulated every 2 seconds
Battery fault BATT FAULT
Modulated every 2 seconds
(The UPS disconnects to
warn the user that the
batteries are incorrect).
Static bypass voltage
out of range BYPASS Modulated every 2 seconds
Unstable static bypass
frequency BYPASS Modulated every 2 seconds
Replace batteries Modulated every 2 seconds
EEPROM error Modulated every 2 seconds
Tab. 14. Warning or alert indicators.
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7.3. CONTROL PANEL FOR 4 KVA TO 10 KVA MODELS.
•The control panel consists of:
Four buttons with the functions described in Tab. 15.
A backlit LCD display.
Four optical LEDS (see Tab. 17).
BYPASS LINE BATTERY FAULT
OFF/ESC TEST/ MUTE/ ON/
Fig. 25. View of the control panel.
Button Description
OFF/ESC
- UPS shutdown.
Press this button for at least 2 seconds.
- ESC functionality.
Press this button to return to the last parameter of the
settings or configuration menu.
TEST/
- Activating the battery test.
Press this button for 3 seconds while in normal or frequency
converter (CF) mode. At the end of the test, it returns to the
respective mode.
- Button to navigate upwards.
When this button is pressed in UPS settings mode, it will
move through the menu structure to the following variable
in relation to the point where it is located.
MUTE/
- Muting the alarm.
Press the button for at least 3 seconds to mute or unmute
the audible alarm.
It is only possible to mute the battery discharge and bypass
alarm.
- Button to navigate downwards.
When this button is pressed in UPS settings mode, it will
move through the menu structure to the previous variable in
relation to the point where it is located.
ON/
- Starting up the UPS.
Press the button for at least 2 seconds.
- Confirmation of selection.
Press this button to confirm selection in the device’s settings
mode.
TEST/ +
MUTE/
Press and hold the two buttons simultaneously for more than
1 second to enter / exit the settings or configuration menu.
(CF) Working mode of the UPS as a frequency converter,
in the static bypass it is disabled.
Tab. 15. Functionality of the control panel buttons.
7.3.1. Audible alarms.
Description Alarm modulation or tone Possibility of
muting
State of the UPS
Bypass mode Beep every 2 minutes.
YesBattery mode Beep every 4 seconds.
Fault Continuous.
Warning
Overload 2 beeps every second. Yes
Other Beep every 1 seconds.
Faults
All Continuous. Yes
Tab. 16. Audible alarms.
7.3.2. Optical indications.
State of the UPS
LEDs
Bypass
(yellow)
Line
(green)
Battery
(yellow)
Fault
(red)
UPS start-up
No output mode
Bypass mode
AC mode
Battery mode
CF mode
ECO mode
Battery test
Fault
: LED illuminated permanently. : LED off.
Tab. 17. Interaction between optical LEDs for the different
modes or states of the UPS.
7.3.3. Location of the adjustment parameters on the display.
Parameter 1
Parameter 2 Parameter 3
Fig. 26. Arrangement of the parameters on the LCD display.
35
•Parameter 1:
Code of the settings menu. For more information consult
Tab. 18.
•Parameters 2 and 3 are the configuration or value options
for each settings menu.
Select with buttons ‘ ’ or ‘ ’ to modify the menus
or parameters.
All of the parameter settings are saved when the
UPS is completely shut down and provided that it
has connected batteries, whether internal or external.
If a complete shutdown is not carried out, the setting will
not be saved to the memory.
7.3.4. Settings.
Tab. 18 shows a summary of parameter 1’s adjustable codes for
each operating mode.
DEPENDING ON THE DEVICE’S FIRMWARE
VERSION, IT IS POSSIBLE TO SHOW SOME
SCREENS IN ADDITION TO THOSE INDICATED
IN THIS SECTION.
DO NOT CHANGE THE ORIGINAL FACTORY
SETTINGS OF THESE, AS THIS COULD CAUSE
FAULTS IN THE UPS, LOADS OR BOTH
DEPENDING ON EACH SETTING.
Code Description
Bypass mode/
No output
mode
AC mode ECO mode CF mode Battery mode Battery test
01 Output voltage. YES -----
02 Output frequency. YES -----
05 ECO enable/disable mode. YES -----
08 Bypass mode setting. YES YES - - - -
09 Maximum battery discharge time setting. YES YES YES YES YES YES
10 Reserved. Reserved for future options.
11 Reserved. Reserved for future options.
12 Hot standby function YES YES YES YES YES YES
17 Reserved. Reserved for future options.
Tab. 18. Parameter 1 codes list. Description and settings
•Code 01 - Output voltage.
Fig. 27.
Parameter 3 setting: Output voltage.
It is possible to choose one of the following values for
the output voltage between phase and neutral:
–208, 220, 230 or 240 V.
•Code 02 - Output frequency.
Fig. 28.
Parameter 2 setting: Output frequency.
It is possible to choose one of the following values:
–50 Hz, 60 Hz or ATO.
With ATO selected, the output frequency is auto-
detected according to the normal input at the time
of connection of the device to the mains.
If it is between 46 and 54 Hz, it will be set at 50
Hz, and, if it is between 56 and 64 Hz, at 60 Hz. The
factory default setting is ATO.
Parameter 3 setting: Frequency mode.
Output frequency in CF mode or not CF mode setting. It
is possible to choose between two options:
–CF. Sets the UPS to CF mode. With this option ac-
tivated, the output frequency is set to 50 or 60 Hz
based on the parameter 2 selection. The input fre-
quency can be 46 to 64 Hz.
–NCF. Sets the UPS to normal mode (not CF mode).
With this option activated, the output frequency
is set at 50 or 60 Hz synchronised with the input
frequency based on the parameter 2 selection and
its range.
If the parameter 2 selection is 50 or 60 Hz, it will be
transferred to battery mode (powering loads) when
the frequency is not respectively between 46 and
54 Hz or 56 and 64 Hz.
(*) If ATO is selected in parameter 2, parameter 3 will
display the current frequency.
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36 SALICRU
Fig. 29.
•Code 05 - ECO mode selection.
Fig. 30.
Parameter 3 setting: Activates or deactivates the ECO
function.
–DIS. ECO function disabled.
–ENA. ECO function enabled.
If the ECO function is disabled, the voltage and
frequency range for ECO mode can be adjusted, but
there is no point unless the function itself is enabled.
•Code 08 - Bypass mode setting.
Fig. 31.
Parameter 2 setting.
–OPN. Bypass permitted. When selecting this option,
the UPS will operate in bypass mode, provided that
selection in bypass settings (parameter 3) has been
enabled/disabled.
–FBD. When selecting this option, operation in
bypass mode is not permitted in any condition.
Parameter 3 setting:
–ENA. Bypass enabled. When selected, bypass
mode is enabled.
–DIS. Bypass disabled. If selected, automatic bypass
is permitted but not manual switch to bypass.
At this point, manual switch to bypass is understood
as being that which users perform on the UPS. For
example, pressing the OFF button on the front of the
device when it is in AC mode transfers the load to
the static bypass.
•Code 09 - Maximum battery discharge time setting.
Fig. 32.
Parameter 3 setting:
–000 ~ 999. Sets maximum backup time. The UPS
will turn off automatically once it has elapsed
to protect the batteries. The default value is 990
minutes (16.5 h).
–DIS. Disables the battery discharge time protection
and the backup time will depend on the capacity of
the batteries.
•Code 10 - Reserved.
Fig. 33.
Reserved for future options.
•Code 11 - Reserved.
Fig. 34.
Reserved for future options.
•Code 12 - Hot standby function.
Fig. 35.
37
Parameter 2 setting. HS.H
–Enabling or disabling the Hot standby function.
Parameter 3 setting:
–YES: The Hot standby function is enabled after
the mains are restored even without the batteries
being connected to the UPS.
–NO: The Hot standby function is disabled. The UPS
operates in normal mode. It will not restart if the
batteries are not connected to the UPS.
•Code 17 -Battery module number setting.
Fig. 36.
In standard devices with internal batteries or B1 devices,
it sets the value to the total number of battery modules
including the one belonging to the standard device,
unless it is a B1 which does not have accumulators.
–Sets parameter 3 to the number of battery modules.
The setting allows values from 0 to 7 and the
default setting is 0.
When external batteries are installed independently,
equivalence must be found in order to determine the
value to be entered in this variable. Proceed as follows
to define the value:
–Divide the Ahs of the installed batteries between 7
Ah for the 4 to 6 kVA models and between 9 Ah for
the 8 and 10 kVA models. If the value obtained is
not exact, round down.
Example:
SLC 5000 TWIN RT2 device with an external battery
pack of 45 Ah belonging to it.
45 Ah / 7 Ah = 6.4
When rounding down, value ‘6’ must be entered in
parameter 3.
•The basic reason for adjusting the setting is as follows,
without it affecting the correct functioning of the device if
it is not done, although it is more than recommended:
The charging current of the batteries is directly related to
the capacity of the battery pack.
The charger will adapt the charging factor automatically
according to the value of the total capacity entered, up to
the maximum of the current that is possible.
This results in faster charging and therefore greater
availability and more immediate backup in the event of
frequent mains failures.
Any alteration of the battery pack will entail a readjustment,
so it will be necessary to adapt the value in the event of
future expansions.
7.3.4.1. Operating mode / Description of state.
•In correctly configured parallel UPS systems, the acronym
‘PAR’ will be displayed in the place of the parameter 2
variable and the number corresponding to the device of the
system in parallel in parameter 3. The ‘MASTER’ UPSs will
be assigned as ‘001’ by default and the slaves ‘002’ and
‘003’ respectively. The assigned numbers can be modified
dynamically during operation.
Fig. 37. Parallel system screen.
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7.3.4.2. Operating mode / Description of state.
Operating mode / state
UPS start-up
Description. When the UPS is started, the display screen of this mode is displayed for a few seconds to initialise the CPU and system.
LCD display.
No output mode
Description. If the bypass voltage / frequency is out of range or the bypass is disabled (or prohibited), the UPS will enter no output mode with the inverter
running or shut down. The UPS does not supply output voltage. The audible alarm modulated every two minutes is audible.
LCD display.
AC mode
Description. If the input voltage is within the range of the device, the UPS will supply stable AC sine-wave voltage to the load or loads, and charge the
batteries.
LCD display.
ECO mode
Description. If the input voltage is within the regulation ranges and ECO mode is activated, the UPS supplies the output voltage from the bypass in ECO
mode (energy saving).
LCD display.
ECO
CF mode
Description. When the output frequency is selected as CF in parameter 3 of the settings menu code 02, the inverter supplies a constant output frequency
(50 or 60 Hz). In this way, the UPS will not supply bypass output voltage, but will charge the batteries.
LCD display.
Battery mode
Description. When the input / frequency voltage is not within the predefined range of the device or there is an AC mains failure, the UPS powers the loads
from the batteries for a limited time due to their own capacity and activates the audible alarm modulated every 4 seconds.
LCD display.
Bypass mode
Description. When the input voltage is within the predefined range of the device and the bypass is enabled, when the UPS is switched off, the device
enters bypass mode. The audible alarm modulated every two minutes is activated.
LCD display.
39
Operating mode / state
Battery test
Description.
With the UPS in AC mode or CF mode, press the ‘TEST’ button for more than 0.5 seconds. The audible alarm will beep and the battery test
will start. In the electric flow diagram of the display, the line between I / P and the inverter icon flashes for information purposes. This test
is useful to check the battery state.
LCD display.
Error or fault
state
TWIN RT2
4-10kVA
When an error or fault is detected in the UPS, the inverter will lock. The fault code will be displayed on the screen and the icon will
illuminate. Table 13 shows the error or fault codes and the correlation with the description.
BYPASS
Tab. 19. Operating modes.
7.3.4.3. Warning or alert codes.
Code Warning or alert description
01 Disconnected battery.
07 Overcharge in the battery.
08 Low battery.
09 Output overload.
0A Fan fault.
0B EPO activated.
0D Overtemperature.
0E Charger fault.
10 L1 input fuse open.
21 Line voltages of UPSs connected in parallel are different
22 Bypass voltages of UPSs connected in parallel are different
33 UPS locked in bypass after 3 successive overloads in 30 minutes
3A Maintenance switch cover open
3D Bypass not available
3E Start-up fault
Tab. 20. Warning or alert code.
7.3.4.4. Error or fault codes.
Code Error or fault description
01 DC bus start-up fault.
02 DC bus overvoltage.
03 DC bus undervoltage.
04 DC bus imbalance.
11 Inverter soft start fault
12 High voltage in the inverter
13 Low voltage in the inverter
14 Inverter output short-circuited
1A Negative power fault at the output.
21 Battery thyristor short-circuited.
24 Inverter relay short-circuited.
2A Battery charger short-circuited at its output
31 CAN communication fault
35 Parallel cable fault
36 Parallel communication fault
41 Overtemperature
42 CPU communication fault
43 Output overload
6A Battery start-up fault
6B PFC current fault in battery mode
6C DC Bus voltage change too fast
Tab. 21. Error or fault code.
7.3.4.5. Warning or alert indicators.
Code Icon (flashing) Audible alarm
Battery voltage low. Modulated every 1 seconds
Overload.
Modulated twice every 1
seconds
Disconnected battery. BATT FAULT Modulated every 1 seconds
Battery overcharge
Modulated every 1 seconds
EPO activated. Modulated every 1 seconds
Fan fault /
Overtemperature TEMP Modulated every 1 seconds
Charger fault CHARGING
BATTERY
Modulated every 1 seconds
Tab. 22. Warning or alert indicators.
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
40 SALICRU
8. MAINTENANCE, WARRANTY AND SERVICE.
8.1. BATTERY MAINTENANCE.
•Pay attention to all of the safety instructions concerning
batteries indicated in section 1.2.3. of manual EK266*08.
•The service life of the batteries greatly depends on the
ambient temperature and other factors such as the number
of charges and discharges, as well as their depth.
The service life is designed to be between 3 and 5 years
if the ambient temperature to which they are exposed
is between 10 and 20ºC. Different types of battery with
different service lives are available upon request.
•SLC TWIN RT2 series UPSs require minimum upkeep.
The batteries used in the standard models are lead acid,
sealed, valve regulated and maintenance free. The only
requirement is to charge the batteries regularly to extend
their life expectancy.
While the UPS is connected to the mains supply, whether or
not it is running, it will keep the batteries charged and also
offer protection from overcharging and deep discharge.
8.1.1. Notes for the installation and replacement of the
battery.
•If it is necessary to replace any connection cables,
original materials can be purchased through our T.S.S. or
authorised distributors. Using inappropriate cables can
lead to overheating in connections, which is a fire hazard.
•Inside the device, there are permanent dangerous
voltages even without mains supply present through
its connection with the batteries and especially in UPSs
where the electronics and batteries share a box.
It is therefore irrelevant if the input circuit breaker of the
distribution board and/or that of the input of the device in
models with power ratings > 3 kVA is turned to ‘Off’.
Also take into consideration that the battery circuit is
not isolated from the input voltage, so there is a risk of
discharge with dangerous voltages between the battery
terminals and the earth terminal, which is in turn connected
to earth (any metal part of the device).
•Repair and/or maintenance work must be carried out by our
T.S.S., except for the replacement of batteries, which can
be performed by qualified personnel familiar with them. No
other person should handle them.
Depending on the configuration of the UPS, certain actions
need to be carried out before handling the batteries:
Devices with batteries and electronics sharing the
same box.
–Shut down the loads and device completely.
–Disconnect the SLC TWIN RT2 from the mains.
–Open the device to access the interior.
–Remove the fuse or internal battery fuses.
–Release the battery holders and replace the
batteries.
–Perform the above steps in reverse to return the
device to how it was at the start, including start-up.
UPS with batteries and electronics in separate boxes.
–Shut down the loads and device completely.
–Disconnect the SLC TWIN RT2 from the mains.
–Disconnect the battery module from the UPS.
–Open the battery module to access the interior.
–Remove the fuse or internal battery fuses.
–Release the battery holders and replace the
batteries.
–Perform the above steps in reverse to return the
device to how it was at the start, including start-up.
8.2. UPS TROUBLESHOOTING GUIDE.
If the UPS does not work properly, check the information shown
on the LCD screen of the control panel and act accordingly
depending on the device model.
Using the Tab. 23 and Tab. 24 troubleshooting guides, try
to resolve the issue and, if it persists, consult our Technical
Service and Support T.S.S.
If it is necessary to contact our Technical Service and Support
T.S.S., provide the following information:
•UPS model and serial number.
•Date on which the issue occurred.
•Full description of the issue, including information provided
by the LCD display or LEDs and state of the alarm.
•Power supply conditions, type of load and level of load
applied to the UPS, ambient temperature, ventilation
conditions.
•Battery information (capacity and number of batteries),
whether the device is a (B0) or (B1).
•Any other information considered relevant.
41
8.2.1. Troubleshooting guide for devices up to 3 kVA.
Symptom Possible cause Solution
No alarms or indications on the LCD display and mains
voltage normal.
The power cable is not connected correctly. Check that the power cables are firmly connected to
the mains.
The power cable is connected to an IEC output connector
on the UPS.
Correctly connect the power cable to the respective
IEC connector.
Icon and warning code flash on the LCD
display and the audible alarm modulated every second
is active.
The EPO function is activated. Close the EPO signal circuit to deactivate it.
Icon and warning code flash on the LCD
display and the audible alarm modulated every two
seconds is active.
Neutral earth fault detection. Inverted phase and neutral
input cables.
Disconnect the input plug from the AC power socket
and invert the connection of the phase and the supply
neutral (rotate the plug 180º).
Icon and warning code flash on the LCD
display and the audible alarm modulated every two
seconds is active.
The internal or external batteries are badly connected Check that all batteries are properly connected.
Fault code 27 and the BATT FAULT message
are shown on the LCD display. The alarm sounds
continuously.
The voltage of the batteries is too high or the charger is
faulty.
Contact the distributor or seller or, failing that, our
T.S.S.
Fault code 28 and the BATT FAULT message are
shown on the LCD display. The audible alarm sounds
continuously.
The voltage of the batteries is too low or the charger is
faulty.
Contact the distributor or seller or, failing that, our
T.S.S.
Icon , and warning code flash
on the LCD display and the audible alarm modulated
every second is active.
The UPS is overloaded. Disconnect the excess loads from the output sockets.
The UPS is overloaded. The connected loads are powered
directly from the mains through the Bypass. Disconnect the excess loads from the output sockets.
After repeated overloads, the UPS is locked in Bypass
mode. The connected loads are powered directly from the
mains.
Disconnect the excess loads from the output sockets,
shut down the device and restart it.
Fault code 49 is shown on the LCD display. The
audible alarm sounds continuously. UPS input overcurrent. Disconnect the excess loads from the output sockets.
Fault code 43 is shown on the LCD display. The
audible alarm sounds continuously.
The UPS shuts down automatically as a result of an
overload in the output of the device.
Disconnect the excess loads from the output sockets
and restart it.
Fault code 14 is shown on the LCD display. The
audible alarm sounds continuously.
The UPS shuts down automatically as a result of a short
circuit in the output.
Check the output wiring and that the connected loads
are not short-circuited
Fault codes 01, 02, 03, 11, 12, 13 and 41 are shown
on the LCD display. The audible alarm sounds
continuously.
An internal fault has occurred in the UPS. This is due to one
of two possibilities:
1. The load is still powered, but directly from the mains
through the bypass.
2. The load is no longer powered.
Contact the distributor or seller or, failing that, our
T.S.S.
The backup time is shorter than expected.
The batteries do not charge completely.
Charge the batteries for at least 5 h and then check
their charge state. If the problem persists, contact the
distributor or seller or, failing that, our T.S.S.
Faulty batteries. Contact the distributor or seller or, failing that, our
T.S.S. for battery replacement.
Fault code 2A is shown on the LCD display. The
audible alarm sounds continuously. Charger short-circuited at its output. Check whether the connection of the external battery
pack connected to the UPS is short-circuited.
Fault code 45 is shown on the LCD display. At the
same time, the audible alarm sounds continuously.
The charger does not provide output and the battery voltage
is less than 10 V per element.
Contact the distributor or seller or, failing that, our
T.S.S.
Tab. 23. Troubleshooting guide.
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
42 SALICRU
8.2.2. Troubleshooting guide for 4 kVA to 10kVA devices.
Symptom Possible cause Solution
No alarms or indications on the LCD display and mains
voltage normal. The power cables are not connected correctly. Check that the power cables are firmly connected to
the mains.
Icon and warning code flash on the LCD
display and the audible alarm sounds every second.
The EPO function is activated. Close the EPO signal circuit to deactivate it.
Icon and the BATT FAULT message flash
on the LCD display and the audible alarm sounds every
second.
The internal or external battery is not correctly connected. Check whether all batteries are correctly connected.
Icon and warning code flash on the LCD
display and the audible alarm sounds twice a second.
The UPS is overloaded. Disconnect or shut down the excess loads connected
to the UPS output.
The UPS is overloaded. The loads connected to the UPS are
directly powered by the mains through the bypass.
Disconnect or shut down the excess loads connected
to the UPS output.
After repeated overloads, the UPS will transfer to bypass
mode. The loads connected to the device will be powered
from the input through the bypass.
Disconnect or shut down the excess loads connected
to the UPS output, shut down the device and restart it.
Display of fault code 43. Icon lights up on
the LCD display and the audible alarm sounds
continuously.
The UPS is overloaded for a long time and the device is
locked. The UPS shuts down automatically.
Disconnect or shut down the excess loads connected
to the UPS output and restart it.
Display of fault code 14, the audible alarm sounds
continuously.
The UPS shuts down automatically due to a short circuit at
the UPS output.
Check that the output connection and/or the loads
connected to it are not short-circuited.
One of the following fault codes, 01, 02, 03, 04, 11, 12,
13, 14, 1A, 21, 24, 35, 36, 41, 42 or 43, are displayed
on the LCD display and the audible alarm sounds
continuously.
An internal fault has occurred in the UPS. This is due to one
of two possibilities:
1. The load is still powered, but directly from the mains
through the bypass.
2. The load is no longer powered.
Contact the distributor or seller or, failing that, our
T.S.S.
The backup time is shorter than expected.
The batteries do not charge completely.
Charge the batteries for at least 7 h and then check
their charge state. If the problem persists, contact the
distributor or seller or, failing that, our T.S.S.
Faulty batteries. Contact the distributor or seller or, failing that, our
T.S.S. for battery replacement.
Icon and the TEMP message flash on the
LCD display and the audible alarm sounds every
second.
The fan is locked or does not work; or the temperature of
the UPS is very high.
Check the fans and contact the distributor or seller or,
failing that, our T.S.S.
Tab. 24. Troubleshooting guide.
8.3. WARRANTY CONDITIONS.
8.3.1. Terms of the warranty.
On our website you will find the warranty conditions for the
product you have purchased where you can also register it. It is
recommended to do so as soon as possible to include it in the
database of our Technical Service and Support (T.S.S.). Among
other advantages, it will streamline any regulatory procedures
for the intervention of T.S.S. in the event of a fault.
8.3.2. Exclusions.
Our company will not be bound by the warranty if it notices
that the defect in the product does not exist or was caused
by improper use, negligence, improper installation and/or
verification, attempts at unauthorized repair or modification, or
any other cause beyond the intended use, or by accident, fire,
lightning or other hazards. Nor shall it cover any compensation
for damages.
8.4. TECHNICAL SERVICES NETWORK.
Information about our national and international Technical Service
and Support (T.S.S.) centres can be found on our website.
43
9. ANNEXES.
9.1. GENERAL TECHNICAL SPECIFICATIONS.
Models. TWIN RT2
Available power ratings (kVA / kW). 0.7 11.5 2 3 4 5 6 8 10
Technology. On-line double-conversion, PFC, double DC bus.
Rectifier.
Input type. Single-phase.
Number of cables. 3 cables - Phase R (L) + Neutral (N) and earth.
Rated voltage. 200 / 208 / 220 / 230 / 240 V AC (1) 208 / 220 / 230 / 240 V AC (2)
Input voltage range. 176.. 276 V AC with 100 % load.
110.. 300 V AC up to 60 % load. 110.. 300 V AC up to 50 % load.
Frequency. 50 / 60 Hz (auto-detectable)
Input frequency range. ± 4 Hz (46.. 54 / 56.. 64 Hz)
Total harmonic distortion (THDi), at full load. ≤ 5 % ≤ 4 %
Power factor. ≥ 0.99 (at full load).
Inverter.
Technology. PWM
Waveform. Pure sine wave.
Power factor. 1 (3)
Rated voltage. 200 / 208 / 220 / 230 / 240 V AC (1) 208 / 220 / 230 / 240 V AC (2)
Output voltage accuracy (battery mode). ± 1 %
Total harmonic distortion (THDv), with linear load. < 1 % < 2 %
Frequency. With mains present, synchronised to rated input (46.. 54 / 56.. 64 Hz).
With mains absent -backup mode- 50 / 60 ±0.1 Hz.
Frequency synchronous speed. < 1 Hz/sec.
Transfer time, inverter to battery. 0 ms.
Performance at full load, in line mode with battery
100% charged. > 89 % > 90 % > 91 % > 93 %
Performance at full load, in ECO mode. > 95 % > 96 % > 97 % > 99 %
Overload in line mode.
110.. 130 %, 5 min. 100.. 110 %, 2 min.
> 130.. 140 %, 30 sec. > 110.. 130 %, 1 min.
> 140.. 150 %, 1.5 sec. > 130 %, 1 sec.
> 150 %, 100 ms. -
Overload in battery mode.
110.. 130 %, 2 min. 100.. 110 %, 30 sec.
> 130.. 140 %, 10 sec. > 110.. 130 %, 10 sec.
> 140.. 150 %, 1.5 sec. > 130 %, 1 sec.
> 150 %, 100 ms. -
Crest factor. 3:1
Possibility of parallel connection / No. of devices. Function not available. Yes / up to 3 UPSs. (4)
Static Bypass.
Type. Common line with mains. Mixed (thyristors in antiparallel + relay).
Rated voltage. That of the mains.
Rated frequency. That of the mains.
Batteries.
Element voltage. 12 V DC
Capacity. 7 Ah 9 Ah 7 Ah 9 Ah
Number of batteries in series / group voltage. 3 / 36 V DC 4 / 48 V DC 6 / 72 V DC 16 / 192 V DC
Blocking voltage for group end of backup. 31.5 V DC 42 V DC 63 V DC 168 V DC
Internal battery charger.
Group fast charge voltage. 42.5 V DC 56.6 V DC 85 V DC 224 V DC
Group floating voltage. 41.0 V DC 54.7 V DC 81.9 V DC 218.4 V DC
Maximum charge current. 4 A 1 A
Recharge time. < 3 hours to 90%.
Voltage / temperature compensation. 5 mV per battery / ºC for temperature > 30 ºC. 20 mV per battery / ºC for temperature > 25 ºC.
Optional internal battery charger (B1).
Maximum charge current. 12 A 4 A
Other functions.
Cold start. Yes
Emergency power off. Yes
Frequency converter. Yes (5) Yes (6)
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
44 SALICRU
Models. TWIN RT2
Available power ratings (kVA / kW). 0.7 11.5 2 3 4 5 6 8 10
General.
IEC connectors or input terminals. 10 A IEC connector. 16 A IEC connector. 3 (Phase, neutral and earth terminal).
IEC connectors or output terminals. 8 x 10A IEC (4 + 4) + 1 x 16A IEC (only in 3 kVA UPS) 3 (Phase, neutral and earth terminal).
PDU power supply delivered with the device. -With 3-wire cable to connect to UPS output terminals.
IEC output connectors on PDU. -4 x 10A IEC + 2 x 16 A IEC 2 x 10A IEC + 4 x 16 A IEC
Communication ports. 2 (RS232 -DB9- and USB, mutually exclusive).
Potential-free contacts, interface to relays. 3 relays supplied with the same connector as the RS232. -
Digital input and output. -1 + 1
ADSL/fax/modem transient protector. Yes (RJ45 connectors) No
Monitoring software. ViewPower (free download).
Optional cards (to insert in slot). Interface to relays, SNMP, remote Internet or intranet management.
Noise level at 1 m. < 50 dB < 55 dB < 58 dB < 60 dB
Working temperature. 0.. +40 ºC
Storage temperature. -15.. +50 ºC
Working altitude. 2,400 masl
Relative humidity. 0-95 % non-condensing.
Protection rating. IP20
Dimensions (mm)
-Depth × Width × Height-
UPS modules. 410 x 438 x 88 510 x 438 x 88 630 x 438 x 88 600 x 438 x 88
Standard battery module. - - - 688 x 438 x 88
Optional battery module. 410 x 438 x 88 510 x 438 x 88 630 x 438 x 88 600 x 438 x 88
Module height in number of U. 22 + 2
Weight (kg).
UPS modules. 14.1 14.1 15.5 19.5 27.5 17 20
Battery module. -52 54
Optional battery module. 19.1 21.5 29 41.2 52 54
Safety. EN-IEC 62040-1
Electromagnetic compatibility (EMC). EN-IEC 62040-2 (C2) EN-IEC 62040-2 (C3)
Operation. EN-IEC 62040-3
Marking. CE
Quality system. ISO 9001 and ISO 140001
(1) 80% power reduction for 200 or 208 V devices.
(2) 90% power reduction for 208 V devices.
(3) For B1 4 to 10 kVA devices, power factor: 0.8.
(4) 90% power reduction for parallel devices.
(5) As a frequency converter, the power supplied will be 78% of
the rated.
(6) As a frequency converter, the power supplied will be 60 % of
the rated.
•DSP.- Digital signal processor. A DSP is a processor or
microprocessor-based system that has a set of instructions,
hardware and optimised software for applications that
require numerical operations at very high speed. Because
of this, it is especially useful for the processing and
representation of analogue signals in real time: in a system
that works in this way (real time) samples are usually
received from an analogue/digital converter (ADC).
•Power factor.- The power factor, PF, of an AC circuit is
defined as the ratio between active power, P, and apparent
power, S, or as the cosine of the angle formed by the current
and voltage factors, designated in this case as cos f, where
f is the value of the angle.
•GND.- This stands for GROUND or EARTH and, as the name
indicates, refers to the potential of the surface of the Earth.
•EMI filter.- Filter capable of significantly reducing
electromagnetic interference (EMI), which is the disturbance
that occurs in a radio receiver or in any other electrical
circuit caused by electromagnetic radiation coming from an
Tab. 25. General technical specifications.
9.2. GLOSSARY.
•AC.- Alternating current is electric current in which the
magnitude and direction vary cyclically. The waveform of
the most commonly used alternating current is that of a sine
wave, since this achieves a more efficient transmission of
energy. In certain applications, however, other periodic
waveforms are used, such as triangular or square.
•Bypass.- Manual or automatic, this is the physical
connection between the input of an electrical device and
its output.
•DC.- Direct current is the continuous flow of electrons
through a conductor between two points with different
potential. Unlike AC, in DC, electrical loads always circulate
in the same direction from the point of greatest potential
to the lowest. Although DC is commonly identified as a
continuous current (for example, that supplied by a battery),
any current that always maintains the same polarity is
continuous.
45
external source. Electromagnetic interference is also known
as radio frequency interference (RFI). This disturbance can
interrupt, degrade or limit the performance of the circuit.
•IGBT.- An insulated gate bipolar transistor is a
semiconductor device that is generally used as a controlled
switch in power electronics circuits. This device possesses
the characteristics of the gate signals of field effect
transistors with the capacity for high current and low
saturation voltage of the bipolar transistor, combining
an isolated FET gate for input and control and a bipolar
transistor as a single switch in a single device. The IGBT’s
excitation circuit is similar to that of the MOSFET, while the
conducting characteristics are similar to those of the BJT.
•Interface.- In electronics, telecommunications and
hardware, an interface (electronics) is the port (physical
circuit) through which signals are sent or received from one
system or subsystem to another
•kVA.- A volt-ampere is the unit used for apparent power in
electrical current. In DC, it is practically equal to real power
but, in AC, it can differ from this depending on the power
factor.
•LCD.-Liquid crystal display, a device invented by Jack
Janning, who was an employee of NCR. It is an electrical
system for data presentation formed by 2 transparent
conductive layers and a special crystalline material in the
middle (liquid crystal) which have the ability to orientate
light as it passes through.
•LED.- Light-emitting diode, a semiconductor device (diode)
that emits light that is almost monochromatic, that is to
say, it has a very narrow spectrum when it is polarised
directly and is penetrated by an electric current. The colour
(wavelength) depends on the semiconductor material
used in the construction of the diode, and can vary from
ultraviolet, passing through the visible light spectrum, to
infrared, the latter called IRED (infra-red emitting diode).
•Circuit breaker.- A circuit breaker is a device capable
of interrupting the electrical current of a circuit when it
exceeds certain maximum values.
•On-line mode.- A device is said to be on-line when it is
connected to a system, is operative, and normally has its
power supply connected.
•Inverter.- An inverter is a circuit used to convert DC into AC.
The function of an inverter is to change a DC input voltage
to a symmetrical AC output voltage, with the magnitude
and frequency desired by the user or designer.
•Rectifier.- In electronics, a rectifier is the element or
circuit that converts AC into DC. This is done by using
rectifier diodes, whether solid state semiconductors,
vacuum valves or gaseous valves, such as those containing
mercury vapour. Depending on the characteristics of the AC
power that they use, they are classified as single-phase
when they are powered by a mains phase or three-phase
when they are powered by three phases. Depending on the
type of rectification, they can be half wave when only one
of the half cycles of the current is used or full wave when
both half cycles are used.
•Relay.- A relay is an electromechanical device that
functions as a switch controlled by an electrical circuit
in which, by means of an electromagnet, a set of one or
several contacts is activated to enable other independent
electrical circuits to be opened or closed.
•SCR.- Silicon controlled rectifier, commonly known as a
thyristor, a 4-layer semiconductor device that works as an
almost ideal switch.
•THD.- Total harmonic distortion. Harmonic distortion
occurs when the output signal of a system does not equal
the signal that entered it. This lack of linearity affects the
waveform because the device has introduced harmonics
that were not in the input signal. Since they are harmonic,
that is to say, multiples of the input signal, this distortion is
not so dissonant and is less easy to detect.
SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
46 SALICRU
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SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS (UPS)USER MANUAL
Avda. de la Serra 100
08460 Palautordera
BARCELONA
Tel. +34 93 848 24 00
Fax +34 93 848 22 05
services@salicru.com
SALICRU.COM
www.linkedin.com/company/salicru
@salicru_SA
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The Technical Service and Support (T.S.S.) network, Com-
mercial network and warranty information are available in
website:
www.salicru.com
REF. EL102A01 REV. A CODE 401*