Salicru 699CB000002 User Manual

SLC TWIN PRO2

4.. 20 kVA

UNINTERRUPTIBLE POWER SUPPLY (UPS)

USER'S MANUAL

2SALICRU

General index

1. INTRODUCTION.

1.1. ACKNOWLEDGEMENT LETTER.

2. INFORMATION FOR SAFETY.

2.1. USING THIS MANUAL.

2.1.1. Conventions and used symbols.

3. QUALITY AND STANDARD GUARANTEE.

3.1. DECLARATION OF THE MANAGEMENT.

3.2. STANDARD.

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 equipment.

4.2. PRODUCT DEFINITION.

4.2.1. Nomenclature.

4.3. OPERATING PRINCIPLE.

4.3.1. Main features.

4.4. OPTIONS.

4.4.1. Isolation transformer.

4.4.2. External manual bypass manual.

4.4.3. Communication card.

4.4.3.1. Integration into IT networks by means of the SNMP

adaptor.

4.4.3.2. RS485 Modbus.

4.4.3.3. Dry contacts.

5. INSTALLATION.

5.1. EQUIPMENT RECEPTION.

5.1.1. Reception, unpacking and contents.

5.1.2. Storage.

5.1.3. Unpacking.

5.1.4. Transport till its location.

5.1.5. Location, immobilising and considerations.

5.1.5.1. Location for single units.

5.1.5.2. Location for parallel systems.

5.1.5.3. Immobilising the equipment.

5.1.5.4. Preliminary considerations, before connecting the

equipment.

5.1.5.5. Preliminary considerations for batteries and their

protections before connecting the equipment.

5.1.5.6. Connection parts.

5.2. CONNECTION.

5.2.1. Connection of the input terminals to AC power supply.

5.2.2. Connection of load/s to the output terminals or output 1.

5.2.3. Connection of the load/s to the output terminals 2

(TWIN/3 PRO2 from 8 to 20 kVA only).

5.2.4. Connection with the external battery module and

extended back up times.

5.2.5. AC power supply for the battery charger built in the

battery module.

5.2.6. Connection of the main protective earth and

bonding earth .

5.2.7. EPO terminals (Emergency Power Off).

5.2.8. Terminals for digital Input and Output.

5.2.9. Terminals for the manual bypass auxiliary contact.

5.2.10. Parallel connection.

5.2.10.1. Introduction to the redundancy.

5.2.10.2. Parallel installation and operating.

5.2.11. Communication port.

5.2.11.1. RS232 and USB ports.

5.2.12. Intelligent slot to insert the communication card.

5.2.13. Software.

5.2.14. Considerations before commissioning with the loads.

6. OPERATING.

6.1. COMMISSIONING.

6.1.1. Checking before commissioning.

6.2. START UP AND SHUTDOWN OF THE UPS.

6.2.1. UPS start up with AC mains present.

6.2.2. UPS start up with no AC mains (Cold start).

6.2.3. UPS shutdown with AC mains present.

6.2.4. UPS shutdown with no AC mains.

6.3. MANUAL BYPASS SWITCH (MAINTENANCE).

6.3.1. Shifting to maintenance bypass.

6.3.2. Shifting to normal mode.

6.4. PARALLEL SYSTEM OPERATING

6.5. HOW UPGRADE THE PARALLEL SYSTEM WITH A NEW

UPS OR DOWNGRADE TO SINGLE MODE.

6.6. HOW TO REPLACE A FAULTY UPS FROM THE PARALLEL

SYSTEM.

3

7. CONTROL PANEL WITH LCD.

7.1. CONTROL PANEL.

7.2. TABLE 6 SHOWS THE INDIVIDUAL FUNCTION OF EACH

ONE OF THEM OR THEIR INTERACTION WITH OTHERS,

AS REGARDS TO THE UPS STATUS. LED FUNCTIONS.

7.2.1. Acoustic alarms.

7.2.2. Messages shown in the LCD.

7.3. MEANING OF THE ABBREVIATIONS DISPLAYED IN THE

LCD OF THE CONTROL PANEL.

7.4. SETTINGS IN THE LCD CONTROL PANEL.

7.4.1. Setting menu views, depending on the parameter 1

code.

7.5. OPERATING MODES / STATUS DESCRIPTION.

7.6. WARNING CODES.

7.7. ERROR O FAULT CODES.

7.8. WARNING INDICATORS.

8. MAINTENANCE, WARRANTY AND

SERVICE.

8.1. BATTERY MAINTENANCE.

8.1.1. Notes to replace and install the batteries.

8.2. UPS TROUBLE SHOOTING GUIDE.

8.2.1. Troubleshooting guide.

8.3. WARRANTY CONDITIONS.

8.3.1. Warranty terms.

8.3.2. Out of scope of supply.

8.4. TECHNICAL SERVICE NETWORK.

9. ANNEXES.

9.1. GENERAL TECHNICAL FEATURES.

9.2. GLOSARIO.

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

4SALICRU

SALICRU

1. INTRODUCTION.

1.1. ACKNOWLEDGEMENT LETTER.

We would like to thank you in advance for the trust you have

placed in us by purchasing this product. Read this instruction

manual carefully in order to be familiarized with its contents,

because, as much as you know and understand the equipment

the highest will be your satisfaction and safety levels and their

features will be optimized too.

We remain at you entire disposal for any further information or

any query you should wish to make.

Yours sincerely.

•The equipment here described can cause important

physical damages due to wrong handling. This is why,

the installation, maintenance and/or fixing of itself must

be done by our staff or qualified personnel exclusively.

•Although we have made every effort to guarantee a com-

plete and accurate information in this user’s manual, we

are not responsible for any errors or omissions that may

exist.

The images included in this document are mere illustrations

and they could not represent the part of the equipment ex-

actly, therefore they are not contractual. Nevertheless, dif-

ferences that could exist will be alleviated or solved with

the correct labelling of the equipment.

•According to our policy of constant evolution, we reserve

the right to modify the specifications, operating or

described actions in this document without fore-

warning.

Any reproduction, copy or third party concession,

modification or partial or in whole translations of this

manual or document, in any format or media, is prohibited without

the previous written authorization of our firm, being reserved

the full and exclusive ownership right over it.

5

2. INFORMATION FOR SAFETY.

2.1. USING THIS MANUAL.

The documentation of any standard equipment can be down-

loaded from our website by the client (www.salicru.com).

•Those equipments «supplied by power cord with plug», this

is is the website to get the user’s manual and the «Safety

instructions» EK266*08.

•Those equipments «with permt connection», hardwired,

can be supplied together with a CD-ROM or Pen Drive,

which includes any information needed for its erection

and commissioning, including the «Safety instructions»

EK266*08.

Before doing any action over the equipment regarding installa-

tion or commissioning, change of location, setting or handling,

read them carefully.

This user’s manual is intended to provide information regarding

the safety and to give explanations about the procedures for

the installation and operating of the equipment. Read them

carefully and follow the stated steps in the established order.

Compliance as regards to «Safety instructions» is

mandatory, being the user the legal responsible

regarding to its observance and application.

The equipments are delivered duly labelled for the correct iden-

tification of any their parts, which combined with the instruc-

tions described in this user’s manual, allows the end-user to

make any operating of both installation and commissioning, in

an easy and ordered way without doubt.

Finally, once the equipment is commissioned and in operation,

it is recommended to keep the downloaded documentation

from the WebSite, or the CD-ROM or Pen Drive in a safe place

and with easy access, for further questions that could arise.

The following terms are used in the document indistinctly to

be referred to:

•«SLC TWIN PRO2, TWIN PRO2, TWIN, PRO2, equip-

ment, unit o UPS».- Uninterruptible Power Supply.

Depending on the context of the sentence, it can be re-

ferred either to the own equipment or to the equipment

with batteries, although all is assembled in one cabinet or

metallic enclosure.

•«Batteries or accumulators».- Group or set of elements

that store the electron flow through electrochemical means.

•«T.S.S.».- Technical Service & Support.

•«client, fitter, operator or end-user».- are used indis-

tinctly and by extension, to be referred to the fitter and/or

operator which will make the corresponding actions, being

responsible the same person about the actions to take on

behalf of himself.

2.1.1. Conventions and used symbols.

Some symbols can be used and shown in the equipment and/or

in the description of this user’s manual.

For more information, see section 1.1.1 of EK266*08 document

as regards to «Safety instructions».

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

6SALICRU

3. QUALITY AND STANDARD GUARANTEE.

3.1. DECLARATION OF THE MANAGEMENT.

Our target is the client’s satisfaction, therefore this Manage-

ment has decided to establish a Quality and Environmental

policy, by means of installation a Quality and Environmental

Management System that becomes us capable to comply the

requirements demanded by the standard ISO 9001 and ISO

14001 and by our Clients and concerned parts too.

Likewise, the enterprise Management is committed with the

development and improvement of the Quality and Environ-

mental Management System, through:

•The communication to all the company about the impor-

tance of satisfaction both in the client’s requirements and

in the legal and regulations.

•The Quality and Environmental Policy diffusion and the fixa-

tion of the Quality and Environment targets.

•To carry out revisions by the Management.

•To provide the needed resources.

3.2. STANDARD.

The SLC TWIN PRO2 product is designed, manufactured and com-

mercialized in accordance with the standard EN ISO 9001 of

Quality Management Systems. The marking shows the con-

formity to the EEC Directive by means of the application of the fol-

lowing standards:

•2014/35/EU. - Low Voltage Directive [LVD].

•2014/30/EU. - Electromagnetic Compatibility [EMC].

•2011/65/EU. - Restriction of Hazardous Substances in elec-

trical and electronic equipment [RoHS).

In accordance with the specifications of the harmonized stand-

ards. Standards as reference:

•EN-IEC 62040-1. Uninterruptible power supply [UPS]. Part

1-1: General and safety requirements for UPS’s used in ac-

cessible areas by end users..

•EN-IEC 60950-1. IT equipments. Safety. Part 1: General

requirements.

•EN-IEC 62040-2. Uninterruptible power supply [UPS]. Part

2: EMC requirements.

The manufacturers responsibility is excluded in the event of

any modification or intervention in the product by the cus-

tomer’s side.

ADVERTENCIA!:

SLC TWIN PRO2 4.. 20 kVA. This is a category C3 UPS

product. This is a product for commercial and industrial

application in the second environment; installation re-

strictions or additional measures may be needed to pre-

vent disturbances

The use of this equipment is not suitable for life sup-

port applications, where the failure of it can leave out

of service the life support device or could affect to its

safety or efectiveness. Likewise, it is not recommended

its use in those medical applications, commercial trans-

port, nuclear power stations and other applications or

loads, where the failure of this product can reverse in

personal injuries and material damages.

Declaration of conformity CE of the product is at the

client disposal under previous request to our headquar-

ters offices.

3.2.1. First and second environment.

The following examples of environment cover the majority of

UPS installations.

3.2.1.1. First environment.

Environment that includes residential, commercial and light

industrial premises directly connected without intermediate

transformers to a public low-voltage mains supply.

3.2.1.2. Second environment.

Environment that includes all commercial, light industry and in-

dustrial establishments other than those directly connected to

a low-voltage mains that supplies buildings used for residential

purposes.

3.3. ENVIRONMENT.

This product has been designed to respect the environment and

has been manufactured in accordance with the standard ISO

14001.

Equipment recycling at the end of its useful life:

Our company commits to use the services of authorised so-

cieties and according to the regulations, in order to treat the

recovered product at the end of its useful life (contact your dis-

tributor).

Packaging:

To recycle the packaging, follow the legal regulations in force,

depending on the particular standard of the country where the

equipment is installed.

Batteries:

The batteries mean a serious danger for health and environ-

ment. The disposal of them must be done in accordance with

the standards in force.

7

4. PRESENTATION.

4.1. VIEWS.

4.1.1. Views of the equipment.

Figures from 1 to 3 show the equipment illustrations according

to the format of the case and its power rate. Nevertheless, as

the product is in constant evolution, some discrepancies or

slight contradictions can arise. In case of any doubt, the label-

ling in the own equipment will always prevail

In the nameplate of the equipment, the most important

parameters and features can be checked. Proceed with

the installation accordingly.

Standard and B1, from 4 to 10 kVA. Single phase input and output.

Standard and B1, from 8 to 10 kVA. Three phase input and single

phase output.

B1, from 15 and 20 kVA. Three phase input and single phase output.

Standard, 15 and 20 kVA. Three phase input and single phase

output.

Size 2

Size 1

Fig. 1. Front view for 4 to 20 kVA equipments.

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

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Standard and B1, from 4 to 10 kVA. Single phase input and output.

Digital input-output

RS232

USB

EPO

Manual Byp aux.

contact

Bat. connector cover

Battery connector

Manual bypass screw

locking

Manual bypass lock

Manual Bypass -BM-

Input protection

Output 1 breaker

Output 1, connected to

critical loads

Terminal cover, see

Fig. 17

Swivel casters

Caster brake

Digital input-output

RS232

USB

EPO

Smart Slot

Communication bus

Current sharing signal,

under the cover

Manual bypass screw

locking

Manual bypass lock

Manual byp. aux.

contact

Manual Bypass -BM-

Input protection

Output 1 breaker

Output 1, connected to

critical loads

Terminal cover, see

Fig. 17

Swivel casters

Caster brake

Communication bus

Current sharing signal,

under the cover

Smart Slot

Bat. connector cover

Battery connector

Standard and B1, from 8 to 10 kVA. Three phase input and single phase output.

Digital input-output

RS232

USB

EPO

Manual bypass screw

locking

Manual bypass lock

Contacto auxiliar BM

Manual Bypass -BM-

Input protection

Terminal cover, see

Fig. 17

Swivel casters

Caster brake

Digital input-output

RS232

USB

EPO

Current sharing signal,

under the cover

Communication bus

Manual bypass screw

locking

Smart slot

Manual byp. aux.

contact

Manual Bypass -BM-

Manual bypass lock

Input protection

Terminal cover, see

Fig. 17

Terminal cover, PE

terminals

Swivel casters

Caster brake

Communication Bus

Current sharing signal

under the cover

Smart slot

B1, from 15 and 20 kVA. Three phase input and single phase output. Standrd from 15 and 20 kVA. Three phase input and single phase output.

-BM- letters means Manual Bypass.

Fig. 2. Rear view for 4 to 20 kVA models.

9

Battery switch

Terminal cover

Conector IEC para alimen-

tación AC

Batery switch

Terminal cover

Térmico de protección

Battery module, size 1, with 2x20 batteries

and 50 A protection.

Battery module, size 1, with 3x20 batteries

and 50 A protection.

Battery fuses

Terminal cover

IEC inlet for AC power

supply

Terminal cover

Battery switch

Protection breaker

Battery module, size 1, with 2x20 batteries

and 100 A protection.

Battery module, size 1, with 3x20 batteries

and 100 A protection.

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

10 SALICRU

Battery switch

Terminal cover

Battery module, size 2 with 4x20 batteries

and 100 A protection

Fig. 3. Rear view of the battery module.

11

4.2. PRODUCT DEFINITION.

4.2.1. Nomenclature.

SLC-8000-TWIN/3 PRO2 B1 WCO 0/AB147 208/208V EE521925

MOD BAT TWIN PRO2 2x3AB147 3x40A WCO EE521925

EE521925 Particular specifications of the client.

208V Output voltage if it is not 220/230/240V AC.

208V Input voltage if it is not 220/230/240V AC.

147 Last three characters of the battery code.

AB Family of the battery according to Salicru's code.

0/ Equipment with no batteries but with the needed

accessories to fit them in.

CO “Made in Spain” marking in the UPS and packaging

(custom issues).

W Neutral equipment brand.

B0 No batteries and no space to install them.

B1 External batteries to the UPS enclosure and extra charger.

TWIN PRO2 Single phase input - output configuration.

TWIN/3 PRO2 Three phase input / single phase output equipment.

8000 Power in VA.

SLC Brand acronym.

CF Frequency converter (equipment with no batteries).

EE* Particular specifications of the client.

CO “Made in Spain” marking in the UPS and packaging

(custom issue).

W Neutral equipment brand.

40A Protection size.

3x Quantity of fuses in parallel. Omitted for only one.

147 Last three characters of the battery code.

AB Family of the battery according to Salicru's code..

3 Quantity of batteries in one string.

2x Quantity of strings in parallel. Omitted for only one.

0/ Battery module with no batteries, but with the needed

accessories to fit them in.

TWIN PRO2 Battery module series.

MOD BAT Battery module.

Note concerning batteries:

B0 and B1 acronyms, stated in the nomenclature are re-

lated with the batteries:

B0 The equipment is supplied with no batteries and no

accessories (screws and electrical cables). Batteries

belong to the client and they will be installed externally

to the UPS enclosure. Under request, it is possible to

supply these accessories, which are needed to inter-

connect them with the own the equipment.

B1 Equipment with extra battery charger. The UPS

is supplied with no batteries and no accessories

(screws and electrical cables).Under request, it is pos-

sible to supply these accessories, which are needed to

interconnect them with the own the equipment.

Those equipments requested with no batteries, their pur-

chasing, installation and connection will be borne by the

client and under his responsibility.

Data concerning batteries in respect of quantity, capacity

and voltage are stated in the battery label sticked beside

the nameplate of the equipment, respect this data and

their polarity strictly when connecting them.

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

12 SALICRU

4.3. OPERATING PRINCIPLE.

This manual describes the commissioning and operating of

the Uninterruptible Power Supplies -UPS- from SLC TWIN

PRO2 series as equipments that can operate in parallel or

single configurations, without needing a centralised bypass.

The UPS's from SLC TWIN PRO2 series assure an optimal

protection for any critical load, keeping the power supply to

the loads inside the stated parameters, with either no break

in case of mains failure nor fluctuations. The wide range of

available models (from 4kVA up to 20kVA), allows adapting

the model to the end-user needs.

Thanks to the used technology, PWM (Pulse Width Modula-

tion) and the double conversion, the UPS's from SLC TWIN

PRO2 series are compact, cold, silent and with high efficiency.

The double conversion principle cancels any fluctuations from

the electrical mains. A rectifier converts the alternating cur-

rent from mains in to direct current, and it keeps the optimal

charge level to the batteries and at the same time feeds the

inverter; the inverter generates a alternating current sin-

ewave, which is ready to feed the loads constantly. In case

of power outage at the UPS input, the batteries supply the

energy to the inverter.

The UPS design and manufacturing from SLC TWIN PRO2

series has been done in accordance with the international

standards.

These equipments allow their upgrading by connecting addi-

tional equipments of the same power rate in parallel, in order

to get redundancy -i.e.: N+1- or increasing the power of the

system.

Therefore, this series has been designed to maximize the

availability of the critical loads in order to protect them

against voltage fluctuations, power outages and blackouts,

which are present in the energy distribution lines. This is the

main aim of the UPS's from de SLC TWIN PRO2 series.

This manual applies to the standardised models stated in Tab. 1.

4.3.1. Main features.

•True on-line technology of double conversion and inde-

pendent output frequency from mains.

•Output power factor 1 in single phase input equipments and

0.9 in three phase input ones. Pure sinewave shape, suit-

able for almost all type of loads.

•Input power factor > 0.99 and high efficiency (> 0.94 for

single phase input or > 0.92 for three phase input). So, it

is got a high economy saving and lower installation cost

-wiring-, as well as low input current distortion, so the per-

turbances to mains are reduced.

•Great adaptability to the worst conditions of input mains.

Wide input voltage range, frequency range and wave

shape, so it is avoided the excessive use of the battery,

which has limited energy.

•Available battery charger up to 8 A in order to decrease the

battery recharge time.

•Parallel redundant N+X connection, in order to increase

the reliability and flexibility. 3 equipments in parallel as

maximum.

•Selectable of the High Efficiency Mode > 0.97 -ECO-MODE-.

Energy saving, which means economic saving for the end-

user.

•Possibility to start it up with no mains or discharged bat-

teries. Be careful, with this last point, because the back up

time will be reduced, as much as they are more discharged.

•The smart battery management technology is very useful

to extend the lifetime of the batteries and to optimise their

recharging time.

•RS232 or USB communication ports as standard.

•Digital input to start up-shutdown the equipment.

•Digital output for «Error or fault».

•Remote emergency power off -EPO-.

•User-friendly interface between user and equipment by

means of the control panel with LCD and LED.

•Optional available cards to improve the communication ca-

pabilities.

Model Type Input/output topology

SLC-4000-TWIN PRO2

Standard

Single phase in/out

SLC-5000-TWIN PRO2

SLC-6000-TWIN PRO2

SLC-8000-TWIN PRO2

SLC-10000-TWIN PRO2

SLC-15000-TWIN PRO2

SLC-20000-TWIN PRO2

SLC-8000-TWIN/3 PRO2

Three phase in / Single

phase out

SLC-10000-TWIN/3 PRO2

SLC-15000-TWIN/3 PRO2

SLC-20000-TWIN/3 PRO2

SLC-4000-TWIN PRO2 (B0)

No batteries

Single phase in/out

SLC-5000-TWIN PRO2 (B0)

SLC-6000-TWIN PRO2 (B0)

SLC-8000-TWIN PRO2 (B0)

SLC-10000-TWIN PRO2 (B0)

SLC-15000-TWIN PRO2 (B0)

SLC-20000-TWIN PRO2 (B0)

SLC-8000-TWIN/3 PRO2 (B0)

Three phase in / Single

phase out

SLC-10000-TWIN/3 PRO2 (B0)

SLC-15000-TWIN/3 PRO2 (B0)

SLC-20000-TWIN/3 PRO2 (B0)

SLC-4000-TWIN PRO2 (B1)

Extended back up time

Single phase in / out

SLC-5000-TWIN PRO2 (B1)

SLC-6000-TWIN PRO2 (B1)

SLC-8000-TWIN PRO2 (B1)

SLC-10000-TWIN PRO2 (B1)

SLC-15000-TWIN PRO2 (B1)

SLC-20000-TWIN PRO2 (B1)

SLC-8000-TWIN/3 PRO2 (B1)

Three phase in / Single

phase out

SLC-10000-TWIN/3 PRO2 (B1)

SLC-15000-TWIN/3 PRO2 (B1)

SLC-20000-TWIN/3 PRO2 (B1)

Tab. 1. Standardized models.

13

4.4. OPTIONS.

Depending on the selected configuration, the equipment can

include any of the following options:

4.4.1. Isolation transformer.

The isolation transformer, provides a galvanic isolation that al-

lows isolating the output from input completely and/or even

change the neutral regime.

The fact of having an electrostatic shield between the primary

and secondary windings of the transformer provides a high at-

tenuation level of the electrical noise.

Physically, the isolation transformer can be located at the input

or output of the UPS, depending on the particular specifications

of the installation (equipment power supply and/or loads, type

of loads,...).

In parallel systems, it is not possible to operate with separate

isolation transformers for each UPS. So it is necessary to have

only one transformer for the complete parallel system of the

suitable power rate.

In any case, it will always be supplied as a separate item to the

own UPS enclosure.

4.4.2. External manual bypass manual.

The purpose of this option is to isolate electrically the equip-

ment from mains and critical loads with no break. Therefore the

maintenance or reparation tasks can be done in the equipment

with no breaks in the power supply of the protected system and

at the same time undue risks to the technical staff are avoided.

The basic difference, between this option and the integrated manual by-

pass in the own UPS enclosure is its better operability, because it allows

the total disconnection of the UPS from the installation.

4.4.3. Communication card.

In the rear side of the UPS there is a slot, which allows in-

serting any of the following communication cards.

4.4.3.1. Integration into IT networks by means of the SNMP

adaptor.

The large-scale IT systems based in LANs and WANs, which

integrates servers with different operating systems, must in-

clude an easy control by the management of the system. This

feature is get by the use of the SNMP adaptor, which is ac-

cepted by the main manufacturers of software and hardware.

The connection of the UPS with the SNMP is internal, mean-

while the connection between the SNMP and the IT network is

done by means of a RJ45 10 base connector.

4.4.3.2. RS485 Modbus.

Many times, the large-scale IT systems based in LANs and

WANs require communication by means of a industrial standard

protocol with any part or component integrated inside the IT

network.

One of the most used industrial protocols in the market is the

MODBUS protocol. The SLC TWIN PRO2 series is ready to be

integrated in this kind of environments either by means of the

“SNMP mini card” adaptor or the RS485 Modbus card which is

described in the documentation of the optional.

4.4.3.3. Dry contacts.

•As an option, the UPS has a dry contact card, which pro-

vides digital signals, with maximum applicable voltage and

current of 240 V AC or 30 V DC and 1A.

•This port provides a dialogue between the equipment and

other machines or devices, thanks to the supplied dry con-

tacts, which includeds a terminal strip located in the own

card, with only one common terminal for all of them.

All the dry contacts are normally opened, preset from fac-

tory, being able to set them independently, according to the

information supplied with the option.

•The most common use of these type of ports is to provide

the needed information to the closing file software.

•For information, contact with our T.S.S. or our closest dis-

tributor.

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

14 SALICRU

5. INSTALLATION.

•Read and respect the Safety Information, described

in section 2 of this document. The fact of ignoring

any of the indications described in it, can cause serious ac-

cidents or very serious injuries to the persons in the vicini-

ties in direct contact, as well as damages to the equipment

and/or loads connected to itself.

•A part from the own user's manual of the equipment, the

CD-ROM or Pen Drive contents other documents, which

have to consulted and followed strictly.

•Unless otherwise indicated, any action, indications, notes

and other ones are applicable to the equipments, never

mind if they belong to a parallel system or not.

5.1. EQUIPMENT RECEPTION.

•It is dangerous to handle the equipment over the pallet

with no caution, because it could tip over or cause se-

rious injuries to the operators due to the impact of the fall and/or

entrapment. Pay attention to section 1.2.1. from Safety Intruc-

tions -EK266*08- regarding handling, moving and location of the

equipment.

•Use the most suitable medium to move the UPS meanwhile

it is still packaged, by means of pallet jack or forklift.

•Any equipment handling will be done keeping in mind the

weights and technical features of the model, stated in sec-

tion «9. Annexes».

5.1.1. Reception, unpacking and contents.

•Reception. Check the following:

Data in the labelling of the packaging are the same as

the stated in the purchase order. Once the UPS is un-

packed, check previous data with the nameplate of the

equipment.

In case of discrepancies, make the non-conformity as

soon as possible by quoting the serial number of the

equipment and the delivery note reference.

No damage during transport (packaging and impact in-

dicator correct).

Otherwise, follow the stated protocol in the labelling

beside the impact indicator, located in the packaging.

•Unpacking.

To check the contents, the packaging must be removed.

Complete the unpacking procedure according to

section 5.1.3.

•Contents.

The own equipment.

User's manual in IT support: [CD-ROM] or [Pen Drive].

1 communication cable.

2 cables for parallel connection, current bus and control

signal.

1 female connector to connect into the external EPO. It in-

cludes an isolated cable as a «bridge» mode to close the

circuit (already fitted in).

•Once the reception is finalised, it is better to pack the UPS

again till its commissioning in order to protect it against pos-

sible mechanical impacts, dust, dirt, etc...

•The equipment packaging has wooden pallet, cardboard

or wooden enclosure depending on the requirements, ex-

panded polystyrene corners, plastic bag and polyethylene

wrap, all of them are recyclable materials. When they has

to be disposed proceed in accordance with the laws in

force.

It is advised to keep the packaging, for 1 year at least.

5.1.2. Storage.

•The storage of the equipment will be done in a dry and

cool room, protected from rain, dust, water jets or chemical

agents. It is advisable to keep each equipment and battery

unit inside their original packaging, because they have

been designed to assure the maximum protection during

transport and storage.

•Those equipments, which include Pb-Ca batteries,

the recharging period of time according to the storage

temperature, stated in Tab. 2 from EK266*08 document, must

be respected. Otherwise the warranty will be cancelled.

•After this period of time, connect the equipment with the

batteries unit,if any, and start it up according to the instruc-

tions described in this user's manual and charge them for

12 hours.

In parallel systems, to charge only the batteries, it is not needed

to make the connection among the equipments. Proceed as com-

plete single equipments to charge them.

•Later on, shutdown the equipment, disconnect it and pack

the UPS and batteries in their original packaging again, by

writing down the new recharging battery date in any docu-

ment or over the own packaging as a record mode.

•Do not store the devices, where the temperature exceeds

over 50º C or below –15º C, because the electrical features

of the batteries can be affected.

5.1.3. Unpacking.

•The equipment packaging has wooden pallet, cardboard

or wooden enclosure depending on the requirements, ex-

panded polystyrene corners [EPS] or polyethylene foam

[EPE], plastic bag and polyethylene wrap, all of them are

recyclable materials. When they has to be disposed pro-

ceed in accordance with the laws in force.

It is advised to keep the packaging, in case it was to be

used in future.

•Equipments with single phase input TWIN PRO2 or three

phase input TWIN/3 PRO2 up to 10 kVA.

To unpack the equipment follow the sequence from

figure 4 to 7 (cut the wraps of the cardboard enclosure

and remove it from the top as it was a cover or in case

of wooden packaging, dismantle it with the needed

tools; remove the corners and plastic bag. The UPS will

be naked over the pallet.

With the help of one or two people in each side of the

UPS, download it from the wooden pallet.

15

Fig. 4. Fig. 5. Fig. 6. Fig. 7.

Fig. 8. Fig. 9. Fig. 10. Fig. 11.

5.1.4. Transport till its location.

•All the equipments have four casters (with mechanical

lock), so it is easy to move it till its right location once it

is unpacked.

Nevertheless, if the reception area is far from the installa-

tion location, it is recommended to move the UPS by means

of a pallet jack or the most suitable transport medium,

keeping in mind the distance between both points.

In case of long distances, it is recommended to move the

equipment with its packaging till the installation location

and finally unpack it there.

5.1.5. Location, immobilising and considerations.

5.1.5.1. Location for single units.

•As an example, Fig. 14 shows the typical case depending

on the model. The equipment based on one single phase

(UPS with batteries fitted in) and UPS with the batteries in

a separate case or extended back up times.

For a correct cooling, the space around the equipment

must be free of obstacles. Respect the minimum dis-

tances stated in Tab. 1 from section 1.2.1 of the docu-

ment EK266*08 (Safety Instructions), where the figures

of each dimension A, B, C and D are stated according to

the power rate of each equipment.

For the battery cases, keep the same distances as the

same UPS enclosure.

It is recommended to leave 75 cm additional free in each

side, for the possible tasks of the (T.S.S.) or the needed

power cable length to facilitate the movement of the

equipment to the front.

For extended back up times, with more than one case, it

is recommended to put one at each side of the equipment

and in case of a higher quantity proceed in the same way

alternately.

•Equipments with three phase input TWIN/3 PRO2

To unpack the equipment, follow the sequence of figures

8 to 10 (cut the wraps of the cardboard enclosure and

remove it from the top as it was a cover or in case of

wooden packaging use the needed tools; remove the

corners and plastic bag. The UPS will be naked over the

pallet.

The equipment is fixed to the wooden pallet by means

of metallic support with «L» shape (stabilising support),

fixed at each side of the equipment.

Remove the screws that fix the equipment to the pallet

by means of the support [see Fig. 12 and 13].

Before downloading the equipment from the

pallet, the stabilising supports have to be removed

first, otherwise they will make difficult the downloading

procedure and they will be bent when impacting with

the wooden ramp, being able to cause damages to the

own structure of the equipment.

Put the ramp as figure 11 shows and download the

equipment from the pallet.

Fig. 12.

Fig. 13.

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

16 SALICRU

B

AA

UPS cabinet

with

batteries

D

B

AA A

UPS cabinet Battery UPS

cabinet

D

B

AA A

Battery

cabinet UPS

nr 1

Battery

cabinet UPS

nr 2

A

UPS cabinet

D

Fig. 14. Minimum distances for a correct UPS cooling.

D

B

AA A Ax2Ax2 A A

Battery

cabinet UPS

nr 1

Battery

cabinet UPS

nr 2

UPS cabinet

nr 1

UPS cabinet

nr 2

UPS cabinet

nr 3

Battery

cabinet UPS

nr 3

Fig. 15. Minimum distances for a correct UPS system

cooling.

5.1.5.2. Location for parallel systems.

•As an example of three equipments in parallel, Fig. 15

shows them with their battery case. For systems with two

equipments in parallel and/or more battery modules pro-

ceed accordingly in the same way.

Likewise, obviate the illustration of the battery modules

when they are not available.

The numbering of the equipments in Fig. 15 doesn't have

any purpose less than number each unit in the illustration.

•For a correct cooling, the space around equipment must be

free of obstacles. Respect the minimum distances stated in

Tab. 1 from section 1.2.1 of the document EK266*08 (Safety

Instructions), where the figures of each dimension A, B, C

and D are stated according to the power rate of each equip-

ment.

For the battery cases, keep the same distances as the UPS

enclosure.

5.1.5.3. Immobilising the equipment.

•The equipment has casters with brakes. Once the equip-

ment is placed in its final location, to immobilise the equip-

ment is recommended to lock them.

5.1.5.4. Preliminary considerations, before connecting the

equipment.

•In the description of this manual, there is reference to con-

nect terminals and manoeuvring switches, which are only

available in some models or equipments with extended

back up times. Ignore those operations related with your

unit in case it does not have them.

•Regarding the installation instructions of a single equip-

ment or parallel system, follow and respect them.

•The switchgear or external manual bypass panel:

At least, the installation will have one protection for

the short-circuit in the power supply line of the UPS.

For single equipments, it is recommended to install an

external manual bypass panel, equipped with input,

output and manual bypass protections.

For parallel systems, it is essential to install a switch-

gear or manual bypass panel. The switches of the panel

must allow isolating one UPS from the system, in case

of any failure and allow feeding the loads with the rest

ones, either during the preventive maintenance tasks or

during the failure and its reparation.

•An external manual bypass panel for a single unit or parallel

system can be purchased under request.

Also, it can be manufactured by yourself by keeping in mind

the version and configuration of the available equipment

or system and the attached documentation in the CD-ROM

or el Pen Drive as regards to «Recommended installation

diagram».

•The documentation delivered together with this us-

er's manual and/or CD-ROM or Pen Drive, includes

information regarding the «Recommended installation dia-

gram» for each input and output configuration. This docu-

mentation shows the wiring circuit diagrams, as well as the

protection and cross cable sizes that are connected to the

equipment, considering the nominal voltage. All the figures

are calculated for a total maximum cable length of 30 m

between the switchgear panel, equipment and loads.

For longer lengths, correct the cross cable sections in

17

accordance with the Regulations or standards of the

country, in order to avoid dropping voltages.

In the own documentation and for each configuration,

it is available the information for «N» equipments in

parallel, as well as the features of the «Backfeed pro-

tection».

•In parallel systems, the length and cross cable sec-

tion that connect the switchgear or manual bypass

panel with each UPS must be the same for all of them, with

no exception.

•The cross cable section must be always according to the size

of the own terminals of the switches, in such way that the

wire is embraced properly, in order to guarantee an optimal

contact between both parts.

•The data in the nameplate of the equipment states the

nominal current only, as the safety standard EN-IEC

62040-1 states. To calculate the input current, it has been

considered the power factor and the own efficiency of the

equipment.

The overload conditions are considered as a non-perma-

nent and exceptional operating mode, so it will not be kept

in mind when sizing the protections. Do not connect devices

to the UPS terminals or outlets that could overload it, like

motors.

•TWIN/3 PRO2 models (three phase input and single

phase output), the input current of R phase and Neutral

is higher than the other two lines/phases when the UPS

works on bypass mode (loads supplied from mains directly). Pay

attention to the nameplate data to size the two corresponding

cables.

•In case of adding peripheral parts at the UPS or parallel

system input or output, like transformers or autotrans-

formers, the stated currents in their own nameplates

must be also considered, in order to use the suitable cross

cable section, by respecting the Local and/or National Low

Voltage Electrotechnical Regulation.

•When a UPS or parallel system, as standard, as an option

or installed by yourself, at the input line or at the output or

in both, include a galvanic isolation transformer, a Residual

Current Device must be installed at its output, in order to

protect against electrical shocks and indirect contacts, be-

cause its intrinsic feature of isolation will prevent the trip-

ping of the protections fitted in the primary winding of the

transformer.

•As a reminder, all the isolation transformers installed or

supplied from factory has the output neutral connected to

the protective earth by means of a cable bridge between

the neutral and PE terminals. In case of requiring an iso-

lated output neutral, remove this cable bridge, by taking

the stated cautions in the local and/or national low voltage

regulations.

•This equipment is ready to be installed in grids with

power distribution systems TT, TN-S, TN-C or IT,

keeping in mind the particular features of each neutral re-

gime and the electrical regulations of the destination

country.

•The switches, RCD and circuit breaker of a three phase input

equipment connected to an IT power distribution system

must break the NEUTRAL apart from the three phases.

•TWIN PRO2 has a terminal strip to install an external emer-

gency power off button -EPO-. Only one device has to be

fitted in, in order to break the energy to the loads in any

operating mode.

5.1.5.5. Preliminary considerations for batteries and their

protections before connecting the equipment.

•All the standard UPSs include batteries in the same enclo-

sure, less those models called B0 and B1. For the standard

UPSs, the battery protection is done by internal fuses and

they are not accessible by the end-user.

Also, the battery modules have protection and in this case they

are doubled. Once are internal by means of fuses and not ac-

cessible by the end-user and the second ones by means of a

two poles circuit breaker or fuses.

•IMPORTANT FOR THE SAFETY: In case of installing the

batteries by yourself, the battery set must have a two

poles circuit breaker or fuses switch, with the size stated in

Tab. 2.

•Inside the battery module there are DANGEROUS VOLT-

AGES with the risk of electrical shock it involves, so it is

classified as RESTRICTED ACCESS AREA.

•Do not handle the battery fuse holder or circuit breaker

switch when the equipment is turned ON. These

switches cannot be turned ON/OFF with load.

•When the power supply to the equipment or parallel

system is broken and it is foreseen an out of service of

the equipment for long time, the equipment must be shutdown

completely.

•The battery circuit is not isolated from the input

voltage. So, dangerous voltages can be found be-

tween the battery terminals and the earth. Check that there

is not any kind of voltage, before doing any action over the

terminals.

5.1.5.6. Connection parts.

•Any electrical connection of the equipment is done through

the rear side of the equipment:

Input and output connection terminals. Remove the

fixing screws of the protection cover and the own cover,

to have access to the terminals.

Connect the UPS with the battery modules. Depending

on the power rate of the UPS, it has a connector or ter-

minals.

–Equipment and battery module with connector. Re-

move the screws and the «BATTERY CONNECTOR»

cover. These covers will not be put back again,

keep them.

–Equipment with battery terminals. They are beside

the AC power terminals.

–Battery module with terminals. Remove the screws

and protection cover.

Communication connectors:

–DB9 type for RS232.

–USB type for communication as a peripheral.

–Digital input and output.

–Terminal strip for external EPO button.

–Auxiliary contact for manual bypass switch.

Control connections for parallel systems, by DB15 connec-

tors and analogical signal for current sharing. Remove the

screws and the protection cover to have access to them.

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

18 SALICRU

Slot to insert one of the optional communication cards.

Remove the fixing screws and the plastic cover to allow its

inserting.

•When finalising the connection tasks, the cover or

covers and their fixing screws will be put back be-

fore commissioning the equipment, in order to avoid acci-

dents due to direct contacts.

•It is recommended the use of crimping pin terminal in all

the cable ends connected to terminals, in particular the

power ones (input, output and batteries).

•Check the correct torque in the screws of the terminals.

5.2. CONNECTION.

•The terminal protection cover leaves a slot for the cable

entering to the power terminal strip. The cover and/or en-

closure frame has drills that allows fixing the connection

cables in order to avoid unexpected cable pulling due to the

consequences that it could have.

5.2.1. Connection of the input terminals to AC power

supply.

•As this is an equipment with protection against elec-

trical shocks of class I, it is essential to connect the

main protective earth cable [ ]. Connect this cable to the

terminal before supplying voltage to the input terminals.

•Pay attention to the «Recommended installation» document

in section 5.1.5.4., which states the cross cable section,

protection size and features, etc, ...

«Backfeed protection» connection for TWIN PRO2.

(BP) Automatic «Backfeed protection» system, external to the UPS (EN-IEC 62040-1).

(1) General purpose fuse or fuses with size 600V AC and 1A of type F.

(2) Two or four poles contactor of 400V AC with minimum distance among the contacts of 1.4 mm and230V ACcoil, with minimum current size of the stated one in

the UPS namopete .

For parallel systems, each equipment must have its own "Backfeed protection" separately.

Conexión «Backfeed protection» para TWIN/3 PRO2.

R

N

(2)

Input

Output

UPS

U

N

(1)

(BP) R

S

T

N

U

N

(BP)

(2)

Salida

Entrada

(1)

SAI

Fig. 16. «Backfeed protection» circuit diagram.

•In accordance with the EN-IEC 62040-1 safety standard the

installation must have an automatic «Backfeed protection»

system, i.e.: a contactor, which prevents power supply or

dangerous energy at the UPS input during a power outage

[seer Fig. 16].

The standard applies to single or three phase input equip-

ments as well as both single units and UPSs in a parallel

systems.

•Do not connect any line between the «Backfeed pro-

tection» and UPS, because the safety standard

would not be met.

•Warning labelling must be placed in all the primary power

switches, installed far from the equipment, in order to warn

the electrical maintenance staff about the presence of a

UPS in the electrical circuit.

The labelling will include the following text or an equiva-

lent one:

Before operating in the circuit.

•Isolate the Uninterruptible Power Supply (UPS).

•Check that the voltage among the terminals, PE

included.

Risk of UPS voltage backfeed.

•Connect the input cables to the respective power terminal

strip depending on the available equipment [see Fig. 17].

For parallel systems, it will be needed to repeat the connec-

tions that go from the switchgear panel to each equipment.

Connection to a single phase input:

Connect the power supply cables to the R and N input ter-

minals, by respecting the phase rotation of the neu-

tral and phase stated in the labelling of the equipment

and this manual. Otherwise it can be damaged.

19

In 15 and 20 kVA equipment, the R phase cable will be

connected to the plate and the neutral cable to terminal N.

Connection to a three phase input:

Connect the power supply cables to the R, S T and N input

terminals, by respecting the phase rotation of the

phases and neutral stated in the labelling of the equip-

ment and this manual. Otherwise it can be damaged.

In case of discrepancies between the labelling and the in-

structions of this manual, the first ones will always prevail.

5.2.2. Connection of load/s to the output terminals or output 1.

•As this is an equipment with protection against elec-

trical shocks of class I, it is essential to connect the

main protective earth cable [ ]. Connect this cable to the

terminal before supplying voltage to the input terminals.

•Pay attention to the «Recommended installation» document

in section 5.1.5.4., which states the cross cable section,

protection size and features, etc, ...

•Connect the loads to the output power terminals or output

1, U and N, by respecting the rotation of the phase and

neutral stated in the labelling of the equipment and this

manual [see Fig. 17]. Otherwise the UPS and/or load/s can

be damaged.

•For parallel systems, it will be needed to repeat the connec-

tions that go from the switchgear panel to each equipment.

In case of discrepancies between the labelling and the in-

structions of this manual, the first ones will always prevail.

•As regards to the output protection to be fitted in the

switchgear or manual bypass panel, it is recommended to

split the output power into four different lines. Each one of

them will have a circuit breaker sized to the suitable figure.

This type of energy distribution at the output will allow that

in case of tripping one of them due to a problem in one of the

connected loads in that line, will not affect to the other ones.

Because the rest of loads will have their power supply con-

tinuously, because the only protection that will trip will be

the affected one by the short-circuit in their loads.

•The single phase input equipments up to 10 kVA, apart from

the power terminal strip, also has two IEC outlets protected

by a 10 A breaker.

These outlets are connected in parallel with the output ter-

minals, so it is important to pay attention to the following

consideration:

Bonding PE stud

U output phase

Output neutral

Main PE stud

Input neutral

R phase input

Bonding PE stud

U phase output 1

Output neutral 1

U phase output 2

Output neutral 2

(*) + Battery

Main PE stud

Input neutral

T input phase

S input phase

R input phase

– Battery (*)

TWIN/3 PRO2 8.. 20 kVA power terminal stripTWIN PRO2 4.. 10 kVA power terminal strip

(*) Special features of these terminals according to models:

Not available in models of up to 10 kVA.

Not useful in models of 15 and 20 kVA III / II standard.

Implied connection in models of 15 and 20 kVA III / II B1.

Fig. 17. Power terminal strip.

The size of the output protection stated in the rec-

ommended installation document, is done for

the loads connected at the output power terminals.

This protection will be adapted by the fitter or end-user

to the installation in case part of the power is con-

nected to the IEC outlets, otherwise it is possible that

the input of the UPS will not trip, although the overload

alarm in the UPS is triggered.

5.2.3. Connection of the load/s to the output terminals 2

(TWIN/3 PRO2 from 8 to 20 kVA only).

•Models from 8 to 20 kVA with three phase input has a

second set of output power terminals labelled as output

2, which supply voltage from the same source of output 1,

from the inverter or static bypass.

By means of the control panel the output 2 can be set as

Non-critical loads (set to «On»).

•When setting the output 2 to Non-critical loads, the

back up time is reserved for the most critical loads,

which are connected to output 1, by breaking the power

supply of the output 2 during power outages.

• The size of the output protection stated in the recom-

mended installation document, is the sum of both

output 1 and 2, which does not exceed the power rate of

the UPS in any case.

In case of using both terminal strips, the installer or

end-user will fit the suitable protection at each output,

otherwise the input protection of the equipment could

trip, apart from triggering the overload alarm.

•In parallel systems check that the Output 2 is set to the

same figure in all of them, in order to avoid problems.

•Connect the loads to the output power terminals 2, U and

N, by respecting the rotation of the phase and neutral

stated in the labelling of the equipment and this manual [see

Fig. 17]. Otherwise the UPS and/or load/s can be damaged.

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

20 SALICRU

5.2.4. Connection with the external battery module and

extended back up times.

•As this is an equipment with protection against elec-

trical shocks of class I, it is essential to connect the

main protective earth cable [ ]. Connect this cable to the

terminal before supplying voltage to the input terminals.

•Respect the instructions stated in this section and

those ones referred to the batteries in the EK266*08

safety instructions, section 1.2.3, because risk of electrical

shock exists, which can cause even the death.

•Before starting the connection procedure between

the battery module or modules and the equipment,

check that the UPS input switch and the battery protection in

the module or modules are turned « Off».

•The battery module has been designed for its equip-

ment. Do not modify the battery capacity or quantity

that makes it.

Also, it exists risk of electrical or electrocution shock due to

the high internal DC voltage, which can cause serious inju-

ries for the health and life.

•Do not connect the battery modules between them or with

UPSs with different DC voltage (figure stated in the rear side

of each equipment).

•Tab. 3 states the physical connection between the UPS and

the battery module or modules.

Model

Batteries

(U bat. block x Nº) =

U nominal / U floating

Two poles switch

DC

voltage(V) Current (A)

SLC-4000-TWIN PRO2

(12 V x 20) =

240 V / 275 V 440

20

SLC-5000-TWIN PRO2 25

SLC-6000-TWIN PRO2 32

SLC-8000-TWIN PRO2 40

SLC-10000-TWIN PRO2 50

SLC-15000-TWIN PRO2 63

SLC-20000-TWIN PRO2 100

SLC-8000-TWIN/3 PRO2 40

SLC-10000-TWIN/3 PRO2 50

SLC-15000-TWIN/3 PRO2 63

SLC-20000-TWIN/3 PRO2 100

Tab. 2. Features of the protection to install in the battery

set belonging to the end-user.

•All the standard UPSs include batteries in the same enclo-

sure, less those models called B0 and B1. For the standard

UPSs, the battery protection is done by internal fuses and

they are not accessible by the end-user.

Also, the battery modules have protection and in this case they

are doubled. Once are internal by means of fuses and not ac-

cessible by the end-user and the second ones by means of a

two poles circuit breaker or fuses

•IMPORTANT FOR THE SAFETY: In case of installing the

batteries by yourself, the battery set must have a two

poles circuit breaker or fuses switch, with the size stated in

Tab. 2.

•The connection of the UPS with the battery module will

be done with the supplied cable bundle. First connect one

cable end to the UPS terminals or connector and then the

other cable end to the battery module terminal or con-

nector. See Fig. 18, as an example.

Equipments with connectors, there is not any possi-

bility of wrong polarity connection.

For the equipments with terminals, respect the

polarity and the colour of the cables (red for

positive, black for negative and green-yellow for PE)

stated in the labelling of each module and this

manual.

•When more than one battery module for the UPS is sup-

plied, the connection among them will be in parallel.

• • •

Connector at the

rear side of the UPS

Connectors at the rear side of the

battery modules

Battery

module 1

Battery

module «n»

Fig. 18. Example of connection between a UPS and bat-

teyr modules with connectors.

•In extended back up times, to make easier the connection

between the UPS and the battery modules in parallel, all

the battery modules have two connectors or terminal strips.

•Models with terminals, the polarity and colour of the cables

(red for positive and black for negative) must always be

respected.

•Each battery module is totally independent for

each equipment. It is completely prohibited to

connect two equipments to the same battery

module.

Model

Connection mode with the batteries

In the UPS In the external

battery module

SLC-4000-TWIN PRO2

Connector

SLC-5000-TWIN PRO2

SLC-6000-TWIN PRO2

SLC-8000-TWIN PRO2

SLC-10000-TWIN PRO2

SLC-8000-TWIN/3 PRO2

SLC-10000-TWIN/3 PRO2

SLC-15000-TWIN PRO2

Terminal strip Connector

SLC-20000-TWIN PRO2

SLC-15000-TWIN/3 PRO2

SLC-20000-TWIN/3 PRO2

Tab. 3. Connection between the UPS and battery module

or modules.

21

5.2.5. AC power supply for the battery charger built in

the battery module.

•Some battery modules have an additional charger, which

means making some additional work.

They can be identified, because they include an IEC male

connector, circuit breaker and cooling grid

•Together with the module, it is supplied a power cord with

an IEC female connector in one end and Schuko plug in the

other end.

•The installation must have a wall outlet, schuko type, pro-

tected by a circuit breaker of 6 A, in order to feed the charger

with 230 V AC.

•Those equipments with more than one battery module of

this type, each one of them must have the Schuko wall

output with its corresponding protection.

•Insert the cable into the IEC connector of the battery module

and the schuko plug into the wall outlet of 230 V AC.

5.2.6. Connection of the main protective earth and

bonding earth .

•As this is an equipment with protection against elec-

trical shocks of class I, it is essential to connect the

main protective earth cable [ ]. Connect this cable to the

terminal before supplying voltage to the input terminals.

•Make sure that all the loads connected to the UPS are only

connected to its bonding earth stud . The fact of not lim-

iting the connection this bonding earth of the load or loads

and battery module or modules to this single point, will

break backfeed loops of earth that will decrease the quality

of the energy supplied.

•Those terminals labelled as bonding earth , are joined

among them to the main protective earth stud and to the

ground of the equipment.

•Never and under no circumstances disconnect the

protective earth cable from the building and/or UPS.

5.2.7. EPO terminals (Emergency Power Off).

•The UPSs has two terminals to install a remote Emergency

Power Off button -EPO-.

•The equipment is delivered from factory with the EPO circuit

closed -NC-. So, the UPS will break the output when the

emergency power off button opens the circuit:

Or by removing the own female connector from the

equipment, because this connector includes a cable as

a bridge mode, which closes the electrical circuit [see

Fig. 19-A].

Or when pressing the external button, which belongs to

the end-user and it is installed between the terminals

of the connector [see Fig. 19-B]. The connection of the

button will be normally closed -NC-, so it will open the

electrical circuit when pressing it.

•By means of the communication software, the inverse func-

tion can be set.

Less particular cases, it is better to not use this type of con-

nection, because in case of one of the cables were cut, the

EPO will not break the output voltage.

On the other hand, the use of the normally closed contact ,

the cut cable would be detected immediately, because the

power supply to the loads would be broken.

•To restore the normal operating of the UPS, it is needed to in-

sert the connector with the cable as a bridge mode again in the

equipment or deactivate the EPO button. The equipment will

be turned ON automatically.

A B

Fig. 19. Connector for the external EPO.

5.2.8. Terminals for digital Input and Output.

•The equipment has a terminal strip of four terminals for a

digital input and output [see Fig. 20].

The «Start up-Shutdown» digital input. When the equipment

is turned ON, when applying a voltage between 5 and 12 V

DC, it is shutdown.

The static bypass is enabled from factory. In this

situation, when the inverter is shutdown the

output terminals will supply voltage through the in-

ternal static bypass.

Disable the bypass function through the control panel,

when it is required to break the output when the shut-

down order has been triggered.

Error or fault dry contact. Any error or fault of the UPS

will trigger the digital output (-NO- dry contact of 24V

DC 1A). (ATTENTION to the applied voltage and current

to the contact).

– Digital input

+ Digital input

Error or fault dry

contact output

Fig. 20. Digital input and output connector.

5.2.9. Terminals for the manual bypass auxiliary

contact.

•The manual bypass switch of the equipment has a micros-

witch located under its mechanical lock. This contact is nor-

mally opened and it is extended till a terminal strip located

in the rear side of the equipment [see Fig. 21] and internally

connected with the own UPS control.

•The manual bypass panels supplied under request, they

include a terminal strip with two terminals connected in

parallel with the normally opened auxiliary contact of the

manual bypass switch of the own panel. The auxiliary con-

tacts of the manual bypass are advanced to its closing.

•The connection between the auxiliary contact of the panel

and the UPS or UPSs must be in parallel. Therefore, in case

any of the auxiliary contacts closes the circuit will trigger

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

22 SALICRU

the command to shutdown the inverter, so the equipment

will supply output voltage through the static bypass, unless

it is disabled by means of the control panel, which in that

case would break the load feeding.

•In parallel systems, the manual bypass switch of the

switchgear panel will have a terminal strip for each

equipment. Under no circumstances joint the contacts

of the different UPSs among them, because the ground of

the UPS control would be joined.

•In case of buying the manual bypass panel from

other sources, check that it has the stated auxiliary

contact and connect it to the terminal strip of the UPS or

UPSs in parallel systems. The auxiliary contact type must

be advanced to its closing.

•As safety measures, it is ESSENTIAL, to connect

the terminals strips of the UPS, and even for the

loads, with the ones of the manual bypass panel with the

same function. Therefore, it will be avoided any wrong han-

dling of the manual bypass switch/es when the UPS or

UPSs are turned ON, which could cause a total or partial

failure of the installation and/or loads.

Fig. 21. Auxiliary contact connector of the UPS manual

bypass.

5.2.10. Parallel connection.

5.2.10.1. Introduction to the redundancy.

N+X is usually the most reliable power structure. N means the

minimum quantity of equipments that the total load needs; X

means the quantity of redundant equipments, that is to say, the

quantity of faulty UPSs that the system can allow at the same

time. As higher is the X, the more reliable will be the system.

For those situations, where the reliability is the most important,

N+X will the optimal mode.

Up to 3 equipments can be connected in parallel to set a shared

output and redundant in power.

5.2.10.2. Parallel installation and operating.

•The communication line -COM- means a low safety

voltage circuit.

To preserve the quality of them, they must be installed

separate from other lines with dangerous voltages (energy

distribution line).

Parallel connection bus

Current sharing signal bus

UPS nr 1 UPS nr 3UPS nr 2

Communication bus

Current sharing signal bus

Fig. 22. Connection of the communication bus and current

sharing signal.

Input circuit breaker switches

Output circuit breaker switches

Man ual Bypass

SAI nº 1 SAI nº 2 SAI nº "3"

Input

To loads

Fig. 23. Parallel UPS installation with a switchgear panel

with manual bypass.

•Parallel connection bus. Use the 15 pins DB15 connectors

and shielded cable bundle to joint 3 equipments maximum.

Each bundle has a male and female connectors at its end,

which have to be connected between two correlative equip-

ments. It is essential to close the loop of the parallel bus

among the equipments.

23

The length of the parallel cable is 1.5 metres and it can't be

extended under no circumstances, due to the risk of interfer-

ences that it would mean.

Fig. 22 shows an installation of two equipments in parallel.

For three UPSs proceed in the same way to close the com-

munication bus and current sharing circuits.

•Bus connection of the signal of current. Joint the equip-

ments, by using the cable bundle with connectors in both

ends and connecting them in the connectors of both correla-

tive equipments as Fig. 22 shows. Finally, close the bus loop

between the last and first equipment.

The length of the cable is 1.5 metres and it can't be extended

under no circumstances, due to the risk of interferences that

it would mean.

Fig. 22 shows an installation of two equipments in parallel.

For three UPSs proceed in the same way to close the com-

munication bus and current sharing circuits.

•Parallel installations must have a switchgear panel with sep-

arate input and output protections for each UPS, apart from

a manual bypass switch with mechanical lock, see Fig. 23.

For more information, about the descriptions referred to the

manual bypass and the indications of the «Recommended

installation» see section 5.1.5.4.

•Respect the stated procedures in the previous sections, for

the input and output connections of each equipment.

•For those equipments with extended back up time, respect

the stated procedures for the battery modules, which are de-

scribed in the previous sections.

•In parallel systems, where the length and cross sec-

tion of the cables that go from the switchgear panel

to each UPS and from the UPS to the switchgear panel will

be the same for all them, with no exception.

In the worst conditions, the following deviations must be

strictly respected:

When the distance between the parallel UPSs and the

switchgear panel is less than 20 metres, the length

difference among the input and output cables of each

equipment must be lower than 20%.

When the distance between the parallel UPSs and the

switchgear panel is over 20 metres, the length difference

among the input and output cables of each equipment

must be lower than 10%.

5.2.11. Communication port.

5.2.11.1. RS232 and USB ports.

• The communication line -COM- means a low safety

voltage circuit. To preserve the quality of them, they

must be installed separate from other lines with dangerous

voltages (energy distribution line).

•The RS232 and USB interface are used by the monitoring

software and firmware updating.

•It is not possible to use both ports (RS232 and USB) at the

same time.

•Tab. 4 shows the pin-out of the RS232 signal in the DB9

female connector. The RS232 is a serial data port, so an

important amount of information can be sent through a

communication cable of 3 wires.

•The USB communication port is compatible with the USB

1.1 protocol for the monitoring software.

5 1

9 6

2 1

3 4

Fig. 24. DB9 connectors for RS232 and USB.

Pin # Ref. Description Input / Output

2 RS232 TXD (serial data transmission) Output

3 RS232 RXD (serial data reception) Input

5 RS232 RS232 ground signal GND

Tab. 4. DB9 connector pinout, RS232.

5.2.12. Intelligent slot to insert the communication card.

•Different communication cards can be inserted into the slot:

Programmable dry contacts.

SNMP adaptor.

RS485 Modbus adaptor.

•Each option card is supplied with its own particular docu-

mentation. Read it before installing them.

Installation.

•Remove the protection cover from the slot of the equip-

ment.

•Take the corresponding card and insert it into the reserved

slot. Make sure that it is well connected, to do it the resist-

ance that own connector faces when it inserted into the

slot has to be overcome.

•Make the needed connections of the terminal strips or con-

nectors depending on each case.

•Put the new protection cover supplied with the option cards

and fix it by means of the same screws that previously fixed

the original one.

•For more information, contact with our T.S.S. or our nearest

distributor.

5.2.13. Software.

•Download the free software - Viewpower.

Viewpower is a UPS monitoring software, which has a user

friendly interface for monitoring and control. This software,

in case of power outage provides an auto Shutdown for a

system based on several computers. With this software,

the end-users can monitor and control any UPS hosted in

the same IT network, by means of the communication port

(RS232 or USB), no matter the distance among them.

•Installation procedure:

Go to the website:

http://support.salicru.com

Choose the operating system that you need and follow

the instructions described in the website to download

the software.

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

24 SALICRU

Fig. 25. Screen shot of the main screen of ViewPower

monitoring software.

5.2.14. Considerations before commissioning with the

loads.

•It is recommended to charge the batteries for 12

hours at least before using the UPS for first time.

To do it, supply the input of the equipment and turn the

input switch «On». The battery charger will be auto-

matically started up.

For battery modules.

Those models with extended back up times with one or

more battery modules, the fuse or battery switch has to

be turned «On» too.

•Although the equipment can work without charging the bat-

teries for stated 12 h, the risk of a long power outage for

the first operating hours must be evaluated, because the

back up time of the UPS will be lower.

•Do not start up the equipment and loads before section 6

states it.

Nevertheless, when it is started up, it will be done gradu-

ally, in order to avoid possible issues, at least in the first

UPS start up.

•In case of connecting inductive loads with high consump-

tion, apart from the sensitive loads, like laser printers or

CRT monitors; their worst inrush current will be kept in

mind in order to avoid blocking the equipment.

Depending on the equipment, for this type of loads, which

are considered NON-CRITICAL, the equipment has a pro-

grammable terminal strip. Depending on the setting of that

terminal strip, the power supply will be broken or not in

case of power outage.

25

6. OPERATING.

6.1. COMMISSIONING.

6.1.1. Checking before commissioning.

•Make sure that all connections have done properly with the

correct torque, by respecting the labelling of the equipment

and the instructions of section 5.

•Check that the UPS switch and battery module or modules

are turned -«Off»-.

•Make sure that all the loads are turned «Off».

Shutdown the loads before starting up the UPS and

turn on the loads one by one when the UPS is started

up only. Before shutting down the UPS, check that all the

loads are turned «Off» and out of service.

•It is very important to proceed in the established order.

•See figures 1 to 3 for UPS views.

•Fig. 23 shows a conceptual switchgear panel with manual

bypass for a parallel system, which illustrates only one

equipment by adapting the quantity of switches.

6.2. START UP AND SHUTDOWN OF THE UPS.

6.2.1. UPS start up with AC mains present.

•Check that the power supply connection is correct.

•Supply AC voltage to the equipment (turn the input switch

from switchgear or manual bypass panel to «On». In case

the panel includes output switch turn it «On» too.

•Turn the battery switch «On» (models B0 and B1).

•Turn the input switch of the UPS «On».

The output terminals will be supplied through the

internal static bypass of the equipment.

The fan or fans, depending on the model, will be turned on.

Next the main start screen will be displayed after the initial

equipment test.

•Press over the start up key for more than 0.5 seconds,

the acoustic alarm will beep for 1 sec. and the UPS will be

started up.

•After a few seconds, the UPS will be on «Normal mode». If

the input AC voltage is wrong, the UPS will shift to «Battery

mode», with no break in the power supply to the output

terminal strip.

•Start up the load or loads, without exceeding the nominal

power rate of the equipment.

6.2.2. UPS start up with no AC mains (Cold start).

•If the switchgear panel is available turn the input and

output switches «On».

•Turn the battery switch «On» (models B0 and B1).

•Turn the input switch of the UPS «On».

•Press over the start up key for more than 0.5 seconds,

the acoustic alarm will beep for 1 sec. and the UPS will be

started up

The fan or fans, depending on the model, will be turned on.

Next the main start screen will be displayed after the initial

equipment test.

It is necessary to press the ‘ON’ button for a second time,

about 5 to 7 seconds after the first press, for longer than

0.5 seconds.

•After a few seconds, the UPS will be on «Battery mode».

so it has to be considered: their charge level, the remaining

back up time and the risk that means to operate on this

operating mode.

If the AC mains is restored, the UPS will shift to «Normal

mode», with no break at the power supply of the output

terminals.

•Start up the load or loads, without exceeding the nominal

power rate of the equipment.

6.2.3. UPS shutdown with AC mains present.

•Shutdown the load or loads.

•Press the key for more than 0.5 seconds to shutdown the

inverter. The acoustic alarm will be for 1 sec. The equip-

ment will shift to «Bypass mode».

The output terminals will be supplied through the

internal static bypass stage of the equipment.

•To break the UPS output voltage, turn «Off» the input switch

of the UPS or turn «Off» the input and output protections

located in the switchgear distribution panel.

After a few seconds, the LCD panel is off and the equip-

ment will be out of service.

6.2.4. UPS shutdown with no AC mains.

•Shutdown the load or loads.

•Press the key for more than 0.5 seconds to shutdown the

inverter. The acoustic alarm will beep for 1 sec. The equip-

ment will break the power supply of the output terminals.

After a few seconds, the LCD panel is off and the equip-

ment will be out of service.

•To leave the equipment completely isolated, turn the input

and output switches from switchgear panel «Off».

6.3. MANUAL BYPASS SWITCH (MAINTENANCE).

The internal manual bypass in the SLC TWIN PRO2 UPS is

very useful, but a wrong handling can cause irreversible con-

sequences for both UPS and connected loads. Therefore, it is

important to respect the manoeuvring on the switches as it is

described in the following sections.

In case of mains failure, it is not possible to operate on this

mode.

6.3.1. Shifting to maintenance bypass.

•The procedure to shift from normal mode to maintenance

bypass is the same for single unit and parallel system, less

in the quantity of actions to make:

In case of handling the switches in the different

order as the stated, it will break the power

supply to the loads and even can cause damage

to the UPSs.

For a single equipment.

–Press the start up key for than 0.5 sec. in order to

shutdown the inverter. The acoustic alarm will beep

1 sec. The equipment will shift to «Bypass mode».

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

26 SALICRU

For a parallel system.

–Press the start up key for than 0.5 sec. in all UPSs

in order to shutdown the inverter. The acoustic

alarm will beep 1 sec. The equipments of the par-

allel system will shift to «Bypass mode».

Shift the equipment or equipments to manual bypass

as follows:

1. Remove the mechanical lock from bypass manual

switch from switchgear panel and turn it «On».

2. Remove the manual bypass switch cover, located

in the rear side of the UPS and turn it to «BYPASS»

position.

In parallel systems proceed in the same way in all

the equipments.

 Keep in mind that on «Bypass mode» or with the

manual bypass switch on «BYPASS» position,

the loads will remain exposed to the voltage and fre-

quency fluctuations from mains, blackouts and power

outages, so it was possible choose a day with the lowest

failure probability (days with no fluctuations, days with

no storms,...) and speed up the process.

Turn the input circuit breaker switch of the equipment

to «Off».

In parallel systems proceed in the same way in all the

equipments.

Turn all the input and output circuit breakers of the

switchgear panel to «Off».

The system is completely shutdown and out of service

and loads are supplied by means of the manual bypass

switchgear panel.

Make the needed maintenance tasks.

6.3.2. Shifting to normal mode.

•The procedure to shift from maintenance bypass to normal

mode is the same for single unit and parallel system, less

in the quantity of actions to make:

 In case of handling the switches in the different

order as the stated, it will break the power

supply to the loads and even can cause damage

to the UPSs.

Turn the input and output circuit breaker switches from

switchgear panel to «On».

Turn the input switch of the own equipment to «On».

In parallel systems proceed in the same way in all the

equipments.

Turn the manual bypass switch, located in the rear side

of each equipment to «UPS» position and put back their

protection covers.

In parallel systems proceed in the same way in all the

equipments.

Turn the manual bypass switch of the switchgear panel

to «Off» and put back its mechanical lock.

In order to avoid wrong handling, the mechan-

ical lock, protection covers of the manual by-

pass and their fixing screws have to put back.

For a single equipment.

–Press the start up key for more than 0.5 sec, the

acoustic alarm will beep 1 sec. The equipment will

start up.

For a parallel system.

–Press the start up key for more than

0.5 sec. in all UPSs and each one of them will be

started up, finally the parallel system will be on

«Normal mode».

Load or loads are protected by the parallel system

again.

6.4. PARALLEL SYSTEM OPERATING

•To operate with parallel systems, in order to avoid prob-

lems, check that the output 2 of each UPS is set to the same

parameter in all of them.

•The operating described hereafter, is for equipments with

the standard setting preset from factory.

•Check that the load or loads and/or the output circuit

breaker switches are turned «Off».

•Turn the input circuit breaker switches from switchgear

panel or manual bypass to «On» and the own input switches

in each UPS too.

The UPSs supply AC voltage by means of their internal

static bypass of each unit. Check if any alarm has been trig-

gered in the LCD panel. Measure the output voltage at the

output terminals of each UPS separately, in order to check

if the voltage difference is lower than 1 V among them. In

case the voltage difference is higher than 1 V, check the

wiring and the previous installation instructions.

•If the difference voltage is lower than 1 V, press over the

start up key for more than 0.5 seconds in all UPSs and

each one of them will be started up and all the UPSs will

shift to «Normal mode».

Measure the output voltage a the output terminals of each

UPS separately, in order to check if the voltage difference is

lower than 0.5 V among them. In case the voltage difference

is higher than 1 V, the UPSs must be set (contact with the

T.S.S.).

•Continue with the procedure if everything is correct only.

Press the start up key for than 0.5 sec. in all UPSs and

each one of them will be shutdown.

Turn all the output switches from switchgear or manual by-

pass panel to «On». The output terminals of the switchgear

panel will be supplied by means of the internal static by-

pass of the equipment.

•Press the start up key for more than 0.5 sec. in all UPSs and

each one of them will be started up and all the UPSs will

shift to «Normal mode».

•Start up the load or loads.

•Do not leave one of the UPSs with no neutral con-

nection as regard to the rest one. The neutral of all

UPSs must be joined among them, either through the input

or through the output. Do not open the input and output

circuit breakers of the switchgear panel of one UPS at the

same when the parallel system is turned On, otherwise the

UPS can be damaged and the loads will be shutdown.

6.5. HOW UPGRADE THE PARALLEL SYSTEM WITH A

NEW UPS OR DOWNGRADE TO SINGLE MODE.

•To do this manoeuvring, the parallel system must have a

manual bypass panel for a parallel system.

In case of not having it, it has to be foreseen a complete

27

shutdown of the system and loads connected to it.

•The steps here stated are to add an equipment in a parallel

system of two units. To upgrade a single unit to a parallel

system of two equipments proceed in the same way.

•The switchgear panel will have the corresponding input and

output switches for each UPS apart from the manual bypass

one. Otherwise it will be needed to adapt the panel or pur-

chase a new one, if it has not been foreseen previously.

•Due that the own parallel bus communication has to be

changed in order to integrate the new UPS into the par-

allel system (cable bundle with DB15 connectors), it will be

needed to shift the power supply of the loads to manual by-

pass.

Proceed as follows:

Press the start up key for than 0.5 sec. in all UPSs in

order to shutdown the inverter. The acoustic alarm will

beep 1 sec. The equipments of the parallel system will

shift to «Bypass mode».

Transfer the equipments to manual bypass as follows:

1. Remove the mechanical lock of the manual bypass

switch from switchgear panel and turn it «On».

2. Remove the protection cover of the manual bypass

switch, which is located in the rear side of the

equipment. Put all the manual bypass switches

from UPS to «BYPASS» position.

 Keep in mind that on «Bypass mode» or with the

manual bypass switch on «BYPASS» position,

the loads will remain exposed to the voltage and fre-

quency fluctuations from mains, blackouts and power

outages, so if it was possible choose a day with the

lowest failure probability (days with no fluctuations, days

with no storms,...) and speed up the process.

Turn the own input circuit breaker switches of each

equipment to «Off».

Turn all the input and output switches from switchgear

panel to «Off».

•Before adding the new TWIN PRO2 UPS to the system,

make the needed steps, in order to leave it in the same

situation as the rest ones (input switch turned «Off» and

manual bypass switch with no cover and turned to «BY-

PASS»).

•Add the new UPS to the system, by attending the procedure

stated in section 5.2.10.2, for the parallel connection.

•Disconnect the communication bus between the first and

last equipment, and reconnect it by including the new UPS.

It is compulsory to close the loop of the communication bus

for its correct operating.

Carry out the same operation for the current signal bus.

•Turn the input circuit breaker switch of each UPS from

switchgear panel to «On».

•Turn the input circuit breaker switches from each UPS to

«On».

Turn the internal manual bypass switch of each UPS to UPS

position.

The output switches of each UPS from switchgear panel

must be turned off.

Put the locking cover of the manual bypass switch of each

UPS.

The UPSs supplies output voltage by means of the internal

static bypass of each unit. Check if any alarm has been

triggered in the LCD panel in any UPS. Measure the output

voltage a the output terminals of each UPS separately, in

order to check if the voltage difference is lower than 1 V

among them. In case the voltage difference is higher than 1

V, check the wiring and the previous installation instructions.

•If the difference voltage is lower than 1 V, press over the

start up key for more than 0.5 seconds in all UPSs and

each one of them will be started up and all the UPSs will

shift to «Normal mode».

Measure the output voltage a the output terminals of each

UPS separately, in order to check if the voltage difference is

lower than 0.5 V among them In case the voltage difference

is higher than 1 V, the UPSs must be set (contact with the

T.S.S.).

•Continue with the procedure if everything is correct only.

Press the start up key for than 0.5 sec. in all UPSs and

each one of them will be shutdown.

Turn all the output switches from switchgear or manual

bypass panel to «On». The output terminals of the switch-

gear panel will be supplied by means of the internal static

bypass of the equipment, the same voltage as the manual

bypass line

•Turn the manual bypass switch from switchgear panel to

«Off» and put the mechanical lock back to avoid possible

accidents.

•To avoid inappropriate manoeuvring, it is better to

put back the mechanical lock and the manual bypass

covers and their fixing screws.

•Press the start up key for more than 0.5 sec. in all UPSs and

each one of them will be started up and all the UPSs will

shift to «Normal mode».

•The load or loads are protected by the parallel system

again.

6.6. HOW TO REPLACE A FAULTY UPS FROM THE

PARALLEL SYSTEM.

•The steps to follow for replacing a UPS in a parallel system

based on two or three equipments are exactly the same as to

upgrade the system, less bridging the gaps of the type of action

to make. Proceed as it is described in section 6.4.

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

28 SALICRU

7. CONTROL PANEL WITH LCD.

7.1. CONTROL PANEL.

Fig. 26. Control panel view.

Button Description

/ o

«ON / ENTER»

ON. Press this key for more than 0.5 sec. to start up the

UPS [inverter of the equipment].

ENTER. Press this key to confirm a selection in the setting

menu.

o

«OFF / ESC»

OFF. Press this key for more than 0.5 sec. to shutdown the

equipment, when the equipment is started up previously.

ESC. Press this key to escape and go back to the previous

setting menu.

/  o

«TEST / UP»

TEST. Press this key for more than 0.5 sec. to make a

battery test when the equipment works on AC or FC (*)

UP. Press this key to show the next setting menu screen .

/  o

«MUTE / DOWN»

ALARM SILENT. Press it for more than 0.5 sec. to silent

the acoustic alarm (see section 6.2.3.2).

DOWN. Press this key to show the previous setting menu

screen.

/  o

«TEST / UP» +

/  o

«MUTE / DOWN»

UP + DOWN. Press boht keys simultaneously for more

than 1 sec. to enter and escape from setting menu .

(*) CF. Operating mode as Frequency Converter. With this operating

mode the static bypass is disabled.

Tab. 5. Control panel keypad functions.

•The UPS has a control panel, which has the following parts:

Four buttons with the functions described in table 5.

A backlight LCD with the messages displayed as text or

graphics form, with black letter and blue backgrounds.

Four led indicators, which provides the following in-

formation:

–Bypass (yellow).

–Line (green).

–Battery (yellow).

–Fault (red).

7.2. TABLE 6 SHOWS THE INDIVIDUAL FUNCTION

OF EACH ONE OF THEM OR THEIR INTERACTION

WITH OTHERS, AS REGARDS TO THE UPS

STATUS. LED FUNCTIONS.

UPS status Leds

Bypass Line Battery Fault

UPS ON 

No output mode    

Bypass mode    

AC mode    

Battery mode    

FC mode    

ECO mode    

Battery test    

Fault    

: Led permanent lighting.

: Led off.

Tab. 6. Led optical indicators function.

7.2.1. Acoustic alarms.

Description Modulation or alarme tone Silent

UPS status

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 second.

Faults

All Continuous. Yes

Tab. 7. Acoustic alarms. Condition and modulation or

tone.

29

Information of input

and battery voltage

Information of the

fault

Information of battery

charge level

Information of the

remaining time

Information of

the load level

connected at the

output

Information about the operating mode of the equipment

Information of

the load level

connected at the

output

Acoustic alarm

disabled

Fig. 27. Control panel with LCD.

7.2.2. Messages shown in the LCD.

Display Function

Information of the back up time.

It states the remaining back up time in analogical clock

mode.

It states the remaining back up time in a digital clock

mode.

H.- Hours, M.- Minutes, S.- Seconds.

Information of the fault.

As a warning mode indicates that there is a fault.

Numerical code from setting menu. See table 9 from

section 7.5.

Information of the acoustic alarm.

It indicates that the acoustic alarm has been disabled.

Information of the output voltages.

It indicates the output voltage or output frequency.

V AC.- output voltage, Hz.- Output frequency.

Information of the load level connected to the output.

It indicates the load connected at the output in %, by

means of four segments, which are equivalent to the

following proportion: 0-25 %, 26-50 %, 51-75 % and 76-

100 %.

Information of the programmable outputs

P1 It indicates that the programmable outputs are activated.

Information about the operating mode of the equipment.

BATTERY

It indicates that the equipment is supplying output voltage

from the battery (battery mode).

BYPASS It indicates that the equipment is activated in ECO mode.

ECO It indicates that the equipment is supplying output voltage

by means of the bypass (ECO mode).

ONLINE It indicates that the inverter is working.

P1 It indicates that the output is activated.

Information of the battery charge level.

It indicates the battery charge level in %, by means of

four segments, which are equivalent to the following

proportion: 0-25 %, 26-50 %, 51-75 % and 76-100 %.

BATT FAULT It indicates that the battery is not connected.

It indicates that the battery voltage is low.

Information of the input and battery voltage.

It indicates the input voltage, input frequency or battery

voltage. V AC.- Input voltage, V DC.- Battery voltage, Hz.-

Input frequency.

Tab. 8. Indications shown in the LCD of the control panel.

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7.3. MEANING OF THE ABBREVIATIONS DISPLAYED IN

THE LCD OF THE CONTROL PANEL.

Code LCD message Meaning

ENA A

U

EEnabled.

DIS d1S Disabled.

ATO AtO Automatic.

BAT bAt Battery.

NCF CF

U

Normal mode (not available for FC).

CF CF Frequency converter mode.

SUB SUb Down.

ADD Add Up.

ON ON Start up.

OFF OFF Shutdown.

FBD Fbd Not allowed.

OPN OP

U

Allowed.

RES RES Reserved.

N.L

U

.LNeutral lost.

CHE CHE Checking.

OP.V OP.UOutput voltage

PAR PAR Parallel, 001 is the first one.

EPO EP Emergency power off.

FR FR Frequency.

OPL OPL Load percentage.

RRPhase R.

SSPhase S.

TTPhase T.

Tab. 9. Abbreviations shown in the LCD.

7.4. SETTINGS IN THE LCD CONTROL PANEL.

Parameter 1

Parameter 2 Parameter 3

Fig. 28. Parameter layout in the LCD panel.

•Parameter 1: Code of setting menu. Consult table 9 for its

description.

•Parameter 2 and 3 are the options of the figures for each

setting menu.

Select the «Down» or «Up» keys to change the menu

or parameters.

Any parameter setting is only saved when the UPS

is shutdown on normal mode and internal or ex-

ternal batteries are connected, depending on the case. (It is

understood as shutdown on normal mode to turn off the

input circuit breaker switch when the equipment is on by-

pass or no voltage -depending if the static bypass is ena-

bled or disabled-).

31

Code

Decription Bypass

mode/ No

output

mode

AC mode ECO

mode FC mode Battery

mode

Battery

test

TWIN PRO2 TWIN/3 PRO2

01 Output voltage. YES - - - - -

02 Output frequency. YES - - - - -

(*) 03 Bypass voltage range. YES - - - - -

(*) 04 Bypass frequency range. YES - - - - -

05 Enable / disable ECO mode. YES - - - - -

(*) 06 ECO mode voltage range. YES - - - - -

(*) 07 ECO mode frequency range. 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.

- Programmable output setting. YES YES YES YES YES YES

11 Reserved. - Reserved for future options.

- Programmable level shutdown. YES YES YES YES YES YES

12

Start-up without bateries

(HOT STANDBY FUNCTION). - YES YES YES YES YES YES

- Reservedo /Neutral lost. YES YES YES YES YES YES

(*) 13 Battery voltage setting. YES YES YES YES YES YES

(*) 14 Charger voltage setting. YES YES YES YES YES YES

(*) 15 Inverter voltage setting. - - YES - YES YES -

(*) 16 Output voltage setting. - YES - YES YES -

17 External MOD BAT setting. - YES - - - - -

- Input phase shifting. SI

18 -Battery capacity and quantity of

strings setting. SI

19 Back up time setting. SI

(*) WARNING with regard to codes from 3, 4, 6, 7, 13, 14, 15 and 16!:

DEPENDING ON THE FIRMWARE VERSION OF THE EQUIPMENT, THE ORIGINAL FACTORY SETTINGS CAN BE CHANGED.

DO NOT CHANGE THEM, BECAUSE DEPENDING ON THE SETTING THE UPS, LOADS OR BOTH COULD BE DAMAGED.

Tab. 10. Code list for parameter 1. Description and setting de-

pending on the operating mode.

7.4.1. Setting menu views, depending on the parameter

1 code.

•Code 01 (TWIN PRO2, TWIN/3 PRO2). Output voltage.

Fig. 29.

Parameter 3 setting: Output voltage.

It is possible to select one of the following output voltage

figures, phase to neutral value:

–208, 220, 230 or 240 V.

•Code 02 (TWIN PRO2, TWIN/3 PRO2). Output frequency.

Fig. 30.

Parameter 2 setting: Output frequency.

It is possible to select one of the following figures:

–50 Hz, 60 Hz or ATO.

When ATO is selected, the output frequency is automatic

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

32 SALICRU

set to the frequency input detection, when the equipment

is supplied from mains.

If the frequency is between 46 and 54 Hz, the output

frequency will be set to 50 Hz and if it is between 56

and 64 Hz, it will be set to 60 Hz. The preset parameter

from factory is ATO.

Parameter 3 setting: Frequency mode.

Output frequency setting on FC mode or no FC mode. Two

options can be selected:

–FC. Set the UPS as FC mode. With this option ac-

tivated, the output frequency is set to 50 or 60 Hz

depending on the parameter 2 selection. The input

frequency range can be from 46 to 64 Hz.

–NCF. Set the UPS to normal mode [No FC mode]. With

this option activated, the output frequency is set to 50 or

60 Hz synchronised with the input frequency depending

on the selection in parameter 2 and its range.

If the parameter 2 selection is set to 50 or 60 Hz,

it will shift to battery mode (to supply the loads),

when the frequency is not between 46 and 54 Hz or

56 and 64 Hz respectively.

Fig. 31.

(*) If parameter 2 is set to ATO, then the parameter

3 shows the current frequency.

•Code 03 (TWIN PRO2, TWIN/3 PRO2). By-

pass voltage range.

Fig. 32.

Parameter 2 setting: It states the minimum acceptable

voltage limit for bypass. The setting range is from 110 to

209 V and the preset factory figure is 110 V.

Parameter 3 setting: It states the maximum acceptable

voltage limit for bypass. The setting range is from 231 to

276 V and the preset factory figure is 264 V.

•Code 04 (TWIN PRO2, TWIN/3 PRO2). By-

pass frequency range.

Fig. 33.

Parameter 2 setting: Minimum limit of the acceptable

input frequency range.

–For nominal 50 Hz, the setting range is from 46 to 49 Hz.

–For nominal 60 Hz, the setting range is from 56 to 59 Hz.

The preset factory figures are 46 / 56Hz, for 50 and

60Hz respectively.

Parameter 3 setting: Maximum limit of the acceptable

input frequency range.

–For nominal 50 Hz, the setting range is from 51 to 54 Hz.

–For nominal 60 Hz, the setting range is from 61 to 64 Hz.

The preset factory figures are 54 / 64Hz, for 50 and

60Hz respectively.

•Code 05 (TWIN PRO2, TWIN/3 PRO2). ECO mode, enabled

/ disabled.

Fig. 34.

Parameter 3 setting: Enable or disable the ECO mode.

–DIS. ECO mode disabled.

–ENA. ECO mode enabled.

If the ECO mode is disabled, the voltage and frequency

ranges can be set, although it does not have so much

sense because the own operating mode is disabled.

•Code 06 (TWIN PRO2, TWIN/3 PRO2). ECO

mode voltage range.

Fig. 35.

33

Parameter 2 setting: Low voltage threshold for ECO

mode. The regulation range is between –5 and –10 % of

the nominal voltage.

Parameter 3 setting: High voltage threshold for ECO

mode. The regulation range is between +5 and +10 % of

the nominal voltage.

•Code 07 (TWIN PRO2, TWIN/3 PRO2). ECO

mode frequency range.

Fig. 36.

Parameter 2 setting: The low frequency threshold in ECO

mode. The regulation range is between –5 and –10 % of

the nominal frequency.

–setting range from 46 to 49, for 50 Hz nominal .

–setting range from 56 to 58, for 60 Hz nominal.

The preset factory figures are 48 / 58 Hz, for 50 and

60Hz respectively.

Parameter 3 setting: The high frequency threshold in

ECO mode. The regulation range is between +5 and +10

% of the nominal frequency.

–setting range from 51 to 54, for 50 Hz nominal .

–setting range from 62 to 64, for 60 Hz nominal.

The preset factory figures are 52 / 62 Hz, for 50 and

60Hz respectively.

•Code 08 (TWIN PRO2, TWIN/3 PRO2). Bypass mode set-

ting.

Fig. 37.

Parameter 2 setting.

–OPN. Bypass allowed. When selecting this op-

tion, the UPS will operate on bypass mode, but

depending on the bypass setting, if it is enable or

disable (parameter 3).

–FBD. When selecting this option, it is not allowed the

bypass mode operating under no circumstances.

Parameter 3 setting.:

–ENA. Bypass enable. When selecting this option,

the bypass mode is enabled.

–DIS. Bypass disabled. When selecting this option,

the automatic bypass is allowed but not the manual

bypass shifting.

Bypass shifting is understood as that one that the

end-users make it over the own UPS. I.e.: when

pressing the OFF key at the front of the equipment

when it is on normal mode, then the load is shifted

to the static bypass.

•Code 09 (TWIN PRO2, TWIN/3 PRO2). Maximum battery

discharge time setting.

Fig. 38.

Parameter 3 setting:

–DIS, default value. It disables the maximum battery

discharge time of the batteries, so the back up time

will depend on the capacity of themselves.

–000 ~ 999. It states the maximum back up time.

The UPS will be automatically shutdown once the

time is exceeded. In some III / II models and ac-

cording to firmware version it may be set to 990

minutes [16.5 h] instead of DIS.

•Code 10 (TWIN PRO2). Reserved.

Fig. 39.

Reserved for future options.

•Code 10 (TWIN/3 PRO2). Programmable output setting

Fig. 40.

Parameter 3 setting: Set the programmable output. It

is allowed to select one of the following three options:

–ON: the programmable output is activated perma-

nently.

–OFF: the programmable output is deactivated. Nev-

ertheless, if the UPS is re-start up, this setting will

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

34 SALICRU

change automatically to “ATO” selection.

–ATO: the programmable output is automatically

activated or deactivated, depending on the status

of the battery or load. The programmable output

will be shutdown either when the battery voltage

is lower than the entered value or the shutdown is

done. When the input mains is restored, the output

will be activated automatically. In case of overload,

the programmable output will be shutdown auto-

matically. If the last situation would happen 3 times

in less than 30 minutes, the programmable output

will be shutdown till be activated manually.

•Code 11 (TWIN PRO2). Reserved.

Fig. 41.

Reserved for future options.

•Code 11 (TWIN/3 PRO2). Programmable output shutdown.

Fig. 42.

Parameter 2 setting: 001.

Setting for shutdown time of the programmable output.

Parameter 3 setting: Time to shutdown, stated in min-

utes.

Setting range is from 0 and 300. When the setting time is

achieved, the programmable output will be shutdown. The

preset factory value is 30 minutes.

Fig. 43.

Parameter 2 setting: 002.

Setting for voltage shutdown of the programmable output.

Parameter 3 setting: Shutdown voltages in V.

The setting range is from 11,2 to 13,6 V. If the battery

voltage is lower than the entered figure, the program-

mable output will be shutdown. The preset factory figure

is 11,2 V.

•Code 12 (TWIN PRO2). Hot standby function enable / dis-

able.

Fig. 44.

Parameter 2 setting. HS.H

–Enabling or disabling the Hot standby function.

Parameter 3 setting:

–YES: The Hot standby function is enabled after mains

is restored even with no batteries connected to the

UPS.

–NO: The Hot standby function is disabled. The UPS op-

erates on normal mode. It will not be re-started up if

the batteries are not connected to the UPS.

•Code 12 (TWIN/3 PRO2). Neutral lost detection. By de-

fault, AUTO.

In case of neutral lost, this screen will change to input neu-

tral lost during its checking, option CHE.

AUTO

Fig. 45.

Parameter 2 setting.

–It is displayed when the option input neutral lost is

selected. It is not allowed to be set by the end-user.

Parameter 3 setting:

–In this screen the end-user can check if the input neu-

tral is connected or not.

•Code 13 (TWIN PRO2, TWIN/3 PRO2). Bat-

tery voltage calibration.

Fig. 46.

35

Parameter 2 setting.

–Select «Add» or «Sub» to set the battery voltage to

the real figure.

Parameter 3 setting:

–The voltage range is from 0 to 9,9 V and the preset

factory figure is 0 V.

•Code 14 (TWIN PRO2, TWIN/3 PRO2).

Charger voltage setting.

Fig. 47.

Parameter 2 setting.

–It can be selected «Add» or «Sub» to set the charger

voltage.

Parameter 3 setting:

–Voltage range is from 0 to 9.9 V and the preset fac-

tory figure is 0 V.

Before doing any voltage setting, check that the bat-

teries are disconnected before setting the charger

voltage.

The setting must be according to the battery specifications.

•Code 15 (TWIN PRO2). Inverter voltage set-

ting.

Fig. 48.

Parameter 2 setting.

–Select «Add» or «Sub» to set the inverter voltage.

Parameter 3 setting:

–The voltage range is from 0 to 9.9 V and the preset

factory figure is 0 V.

•Code 15 (TWIN/3 PRO2). Inverter voltage

setting.

Fig. 49.

Parameter 2 setting.

–Select «Add» or «Sub» to set the inverter voltage.

Parameter 3 setting:

–The voltage range is from 0 to 6 V and the preset

factory figure is 0 V

•Code 16 (TWIN PRO2, TWIN/3 PRO2).

Output voltage setting.

Fig. 50.

Parameter 3 setting:

–It is displayed the measured internal output voltage

figure. It can be set by pressing the Up or Down keys

according to an external voltmeter. The calibration will

be effective once the Enter key has been pressed. The

calibration range limit is +/-9V. This function is usually

used in parallel systems.

WARNING with regard to codes from 13 to 16!:

DEPENDING ON THE FIRMWARE VERSION OF

THE EQUIPMENT, THE ORIGINAL FACTORY SET-

TINGS CAN BE CHANGED.

DO NOT CHANGE THEM, BECAUSE DEPENDING

ON THE SETTING THE UPS, LOADS OR BOTH

COULD BE DAMAGED.

•Code 17 (TWIN PRO2). External MOD BAT setting.

Fig. 51.

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

36 SALICRU

Parameter 3 setting: Set the quantity of the external

MOD BAT.

–0-7: The setting allow figures between 0-7. The preset

factory figure is 0

•Code 17 (TWIN/3 PRO2). Input phase shifting enable / dis-

able.

Fig. 52.

Parameter 3 setting: Enabling / Disabling phase shifting

function. It is possible to selected between two options:

–DIS: phase shifting is disabled. Pay attention to the

phase rotation of the phases by respecting the label-

ling of the equipment -R, S, T-.

–ENA: phase shifting is enabled. It makes possible to

connect the phases without respecting their rotation.

This option will be selected, when the three input

terminals -R, S, T- are supplied with the same phase

(single phase mains).

•Code 18 (TWIN/3 PRO2). Battery capacity and MOD BAT

quantity setting.

Fig. 53.

Parameter 2 setting.

–It allows setting the battery capacity.

Parameter 3 setting:

–It allows setting the MOD BAT quantity.

•Code 19 (TWIN/3 PRO2). Back up time setting.

Fig. 54.

Parameter 3 setting:

–It allows setting the back up time to the preset factory

figure or other ones.

7.5. OPERATING MODES / STATUS DESCRIPTION.

Table 10 shows the displayed screens in the LCD of the control

panel [status] for all the operating modes.

1. If the UPS is on normal mode, there will be five screens

for the following measurements: three phases to neutral

input voltages [R, S, T], input frequency, output frequency

and output load.

2. Those parallel systems, which are properly set, instead of

displaying the parameter 2, it will be displayed the «PAR»

acronym and parameter 3 will be displayed the number of the

UPS corresponding to the equipment in the parallel system.

«MASTER» UPSs will be assigned by default as «001» and

the slaves as «002» and «003» respectively. The assigned

numbers can change during their operation.

Fig. 55. Parallel system screen.

37

Operating mode / status

UPS start up

Description. When starting up the UPS, it is displayed this screen for a few seconds in order initialize the CPU and system.

LCD panel.

No output mode

Description. If the bypass voltage / frequency are out of range or the bypass is disabled (or not allowed), the UPS will shift to no output mode

with the inverter on or when shutdown it. The UPS does not supply output voltage. The acoustic alarm beeps every two minutes .-

TWIN/3

TWIN

AC mode

Description. If the input voltage is inside the range,the UPS will supply sinewave and stable AC energy to the load or loads, and batteries will be

charged .

TWIN/3

TWIN

ECO mode

Description. If the input voltage is inside the range and the ECO mode is activated, the UPS supplies output voltage through its bypass (energy

saving).

TWIN/3

TWIN

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

38 SALICRU

Operating mode / status

FC mode

Description. When the output frequency is selected as FC in parameter 3 from code 02 of setting menu, the inverter supplies a constant output

frequency (50 or 60 Hz). Therefore, the UPS does not supply output voltage from bypass, but batteries will be charged.

TWIN/3

TWIN

Battery mode

Description. When the input voltage / frequency are not inside their preset ranges or there is a power outage, the UPS supplies the loads from batteries for

a limited time , which will depend on their capacity, also the acoustic alarm beeps every 4 sec..

TWIN/3

TWIN

Bypass mode

Description. When the input voltage is inside the preset range and the bypass is enabled, when the UPS is shutdown, the equipment shifts to

bypass mode. The acoustic alarm beeps every two minutes.

TWIN/3

TWIN

Battery test

Description.

If the UPS is on AC or FC modes, when pressing the «TEST» key for more than 0.5 sec.. The acoustic buzzer will beep as an informative

mode and the battery test is started. In the energy flow diagram of the LCD panel, the line between the input and the inverter icon

blinks with a dashed line. This test is very useful to check the battery status.

TWIN/3

TWIN

39

Operating mode / status

Error or fault

status

Description. When the UPS detects an error or fault, the inverter will be blocked. And the fault code will be displayed in the LCD panel and the icon

will light. Table 13 shows the error or fault codes and their description.

TWIN/3

TWIN

Tab. 11. Operating modes.

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40 SALICRU

7.6. WARNING CODES.

Code Warning description

TWIN TWIN/3

01 Battery disconnected.

02 - Input neutral lost or L2/L3 input

fuse blown.

04 - Input phases out of range

05 - Bypass phase fault.

07 Battery overcharged.

08 Low battery.

09 Output overload.

0A Fan failure.

0B EPO activated.

0D Over temperature.

0E Charger fault.

10 L1 input fuse blown.

21 Output voltages of the equipments connected in parallel are

different

22 Bypass voltages of the equipments connected in parallel are

different.

33 After 3 overloads in less than 30 minutes, the equipment is

blocked on bypass

34 - Unbalanced converter current

35 - Battery fuse blown

36 - Unbalanced inverter current

3A Maintenance switch cover opened

3B - Phase shifting function failure

3C - Unbalanced input mains

3D Bypass not available

3E Start up fault -

Tab. 12. Warning code.

7.7. ERROR O FAULT CODES.

Code Error or fault description

TWIN TWIN/3

01 DC bus start up fault.

02 DC bus overvoltage.

03 DC bus undervoltage.

04 Unbalanced DC bus.

06 - Converter overcurrent

11 Inverter soft start fault

12 High inverter voltage

13 Low inverter voltage

14 Inverter output short-circuited

1A Negative output power fault.

21 Battery thyristor short-circuited.

24 Inverter relay short-circuited.

29 - Battery fuse blown when

running on battery mode

31 Canbus communication fault -

35 - Parallel communication failure

36 Unbalanced output current in a

parallel system Short-circuited output

41 Over temperature

42 CPU communication fault -

43 Output overload

46 - UPS fault

60 Inverter over current -

63 Wrong inverter wave shape -

6A Battery start up fault -

6B PFC current fault when running

on battery mode -

6C Too fast DC bus voltage change -

Tab. 13. Error or fault code.

7.8. WARNING INDICATORS.

Code Icon (blinking) Acoustic alarm

Low battery voltage. Beep every 1 sec.

Overload

Beep twice x 1 sec.

Disconnected battery BATT FAULT Beep every 1 sec.

Battery overcharged

Beep every 1 sec.

Activated EPO. Beep every 1 sec.

Fan failure /

Overtemperature TEMP Beep every 1 sec.

Charger fault CHARGING

BATTERY

Beep every 1 sec.

Tab. 14. Warning indicators.

41

8. MAINTENANCE, WARRANTY AND

SERVICE.

8.1. BATTERY MAINTENANCE.

•Pay attention to any safety instructions stated in EK266*08

manual section 1.2.3 referred to batteries.

•The useful lifetime of the batteries depends on the ambient

temperature and other factors like the quantity of charging

and discharging cycles and the deep discharges done.

Its design lifetime is between 3 and 5 years if the ambient

temperature is between 10 and 20 ºC. Under request, other

typology and/or design lifetime batteries can be supplied.

•The UPS from SLC TWIN PRO2 series only needs a min-

imum maintenance. The used batteries in standard models

are lead acid, sealed, VRLA and maintenance free. The only

requirement is to charge them regularly in order to extend

their lifetime.

Meanwhile, the UPS is connected to mains, started up or

not, it will keep the batteries charged and will guarantee a

protection against overcharge and over discharge.

8.1.1. Notes to replace and install the batteries.

•In case of replacing any interlink wire, purchase original

parts through the authorised distributors or service centres

in order to avoid over heating or sparks due to the risk that

would entail the use of not enough size.

•Do not short both battery poles + and -, exists risk of elec-

trocution or fire.

•Make sure that there is not any voltage before handling the

batteries. The battery circuit is not isolated from the input,

so dangerous voltages between battery and earth can exist.

•Although the input circuit breaker is turned off, the internal

parts of the UPS are still connected to the batteries, so dan-

gerous voltages are present.

So, before doing any maintenance or reparation, the in-

ternal battery fuse must be removed and/or the connectors

between them and the own UPS too.

As the battery circuit is not isolated from the input, so dan-

gerous voltages between battery and earth or ground (any

metallic part of the cabinet, supports and accessories in-

cluded) can exist.

•Batteries have dangerous voltages. The maintenance and

battery replacement must be done by qualified personnel

and familiarized with them. No other persons must manipu-

late them.

8.2. UPS TROUBLE SHOOTING GUIDE.

If the UPS doesn't work properly, check the information dis-

played in the LCD panel.

Try to solve the problems by following the steps described in

table 15. If the problem persists, consult with our Technical Ser-

vice and Support T.S.S..

When necessary contact with our Technical Service and Sup-

port T.S.S., and provide the following information:

•UPS model and serial number.

•Date of the problem.

•Complete description of the problem, including the informa-

tion supplied by the LCD or leds or alarm status.

•Power supply condition, type of load and load percentage,

ambient temperature, cooling conditions.

•Battery information (capacity and quantity) and if the equip-

ment is a (B0) or (B1).

•Other informations considered as important.

8.2.1. Troubleshooting guide.

Symptom Possible cause Solution

Neither alarms nor indications in the LCD panel and

normal mains voltage. The input cables are not connected properly. Check if the input cables are firmly connecte to

mains.

The icon and warning code blink in

the LCD panel and the acoustic alarm beep every

second.

EPO function is activated. Close the EPO circuit to deactivate it.

The icon and BATT FAULT message

blink in the LCD panel and the acoustic alarm beep

every second.

The internal or external battery are not properly

connected. Check if all the batteries are properly connected.

The and icons blink in the LCD panel

and the acoustic alarm beep twice every second.

The UPS is overloaded. Remove/shutdown the exceeding loads connected

at the UPS output.

The UPS is overloaded. The connected devices to the

UPS are directly supplied from mains through the

internal Bypass.

Remove/shutdown the exceeding loads connected

at the UPS output.

After several overloads, the UPS is blocked on Bypass

mode. The connected devices to the UPS are supplied

directly from mains.

First remove/shutdown the exceeding loads

connected at the UPS output. Then shutdown the

UPS and reboot it .

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

42 SALICRU

Symptom Possible cause Solution

Code fault 43 is displayed. The icon lights

in the LCD panel and the acoustic alarm beeps

continuously.

The UPS has been overloaded for long time and

their equipment is blocked. The UPS is shutdown

automatically.

Remove/shutdown the exceeding loads connected

at the UPS output and reboot it.

Code fault 14 is displayed, the acoustic alarm

beeps continously .

The UPS is automatically shutdown due a short-circuit

at its output.

Check the output wiring and/or connected devices

to its output are short-circuited.

One of the following codes are displayed in the

LCD panel 01, 02, 03, 04, 11, 12, 13, 14,1A, 21, 24,

35, 36, 41, 42 or 43 and the acoustic alarm beeps

continously.

An itnernal fault has ocurred. Two possible situations:

1. The load is still supplied, but through the UPS bypass.

2. The load is not supplied. Contact with the distributor.

The back up time is lower than the expected

Batteries are not fully charged

Charge the batteries for 7 hours at least and

then check their capacity. If the problem persists,

contact with the distributor.

Batteries are damaged Contact with the distributor to replace the battery.

The icon and the TEMP message blink in

the LCD panel and the acoustic alarm beeps every

second.

The fan is blocked or it does not work ; or the UPS

temperature is very high. Check the fans and contact with the distributor .

Tab. 15. Troubleshooting guide.

8.3. WARRANTY CONDITIONS.

8.3.1. Warranty terms.

The warranty conditions for this product can be found in our

website, register the product in it. It is recommended to do it

as soon as possible in order to include it in the database of

our Technical Service and Support (T.S.S.). Among other advan-

tages, it will be easier to make any proceeding, in case it was

needed an intervention from T.S.S..

8.3.2. Out of scope of supply.

Our company is not forced by the warranty in case it is de-

tected that the defect was caused by wrong use, negligence,

not suitable installation and/or checking, reparation by non-au-

thorised personnel, accident, fire, lightning or any other cause

far from the foreseen use. In all these cases, no compensation

will be covered by damaged or injuries.

8.4. TECHNICAL SERVICE NETWORK.

The coverage, both national and international, of the Technical Service

and Support (T.S.S.), can be found in our website.

43

9. ANNEXES.

9.1. GENERAL TECHNICAL FEATURES.

Models: TWIN PRO TWIN/3 PRO

Available powers (kVA / kW) (**) 4 / 4 5 / 5 6 / 6 8 / 8 10 / 10 15 / 13.5 20 / 18 8 / 7.2 10 / 9 15 / 13.5 20 / 18

Technology On-line double conversion, PFC, double DC bus

Rectifier

Input typology Single phase Three phase

Quantity of wires 3 wires - Phase R (L) + Neutral (N) and PE 5 wires - 3 Phases R (L1), S (L2), T (L3) +

Neutral (N) and PE

Nominal volage 208 / 220 / 230 / 240 V AC 220 / 230 / 240 V AC 3 x 360 /3 x 380 / 3 x 400 / 3 x 415 V AC

Input voltage range wirh 100 % load 176.. 276 V AC 3 x 305.. 478 V AC

Input voltage range with 50 % load 110.. 300 V AC 3 x 190.. 520 V AC

Voltage range of transference: At full load

- Low mains voltage 176 V AC (±3 %) 305 V AC (± 3 %)

- Low mains voltage returned 186 V AC (±3 %) 322 V AC (± 3 %)

- High mains voltage 276 V AC (±3 %) 478 V AC (± 3 %)

- High mains voltage returned 266 V AC (±3 %) 460 V AC (± 3 %)

Frequency 50 / 60 Hz (autosensing)

Input frequency range ± 4 Hz (46.. 54 / 56.. 64 Hz)

Power factor > 0.99 (at full load)

Inverter

Technology PWM

Wave shape Pure sinewave

Nominal voltage 208 / 220 / 230 / 240 V AC 220 / 230 / 240 V AC

Output voltage accuracy ± 1 %

Voltage THD with linear load < 1 % < 2 %

Voltage THD with non-linear load < 4 % < 5 %

Frequency With mains , synchronised with nominal input (46.. 54 / 56.. 64 Hz)

Free running, battery mode 50 / 60 ±0.1 Hz Free running, battery mode 50 / 60 ±0.05 Hz

Slew rate 1 Hz/sec.

Power factor 1 (by default) 0.9 (by default)

Permissible load power factor 0.5.. 1 lagging

Transfer time, inverter to battery 0 ms.

Transfer time, inverter to bypass 0 ms.

Transfer time, inverter to ECO 0 ms.

Transfer time, ECO to inverter < 10 ms.

Efficiency at full load, on normal mode with battery

100% charged > 93 % > 90 %

Efficiency at full load, on ECO mode > 99 % > 96 %

Overload on normal mode

100.. 110 %, 10 min.

> 110.. 130 %, 60 sec.

> 130 %, 1 sec.

Overload on battery mode

100.. 110 %, 30 sec.

> 110.. 130 %, 10 sec.

> 130 %, 1 sec.

Crest factor 3:1

Quantity of parallel equipments Up to 3 UPSs

Static Bypass

Type Hybrid (thyristors in antiparallel + relay)

Nominal voltage 208 / 220 / 230 / 240 V AC 220 / 230 / 240 V AC

Nominal frequency 50 / 60 Hz ±4 Hz

Overload < 130 %, constant

> 130 %, 60 sec.

Batteries

Voltage / capacity 12 V DC / 7 Ah 12 V DC / 9 Ah

Quantity of batteries per string / set voltage 20 / 240 V DC

Quantity of battery strings 1 2 1 2

Low battery voltage, battery block / string 11.4 V DC / 228 V DC

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

44 SALICRU

Models: TWIN PRO TWIN/3 PRO

Available powers (kVA / kW) (**) 4 / 4 5 / 5 6 / 6 8 / 8 10 / 10 15 / 13.5 20 / 18 8 / 7.2 10 / 9 15 / 13.5 20 / 18

Internal battery charger

Type of load I / U (Constant current / constant voltage)

Constant current / constant voltage 1/2/4 A depending on the model / 273 V DC

(13.65 V DC bat. block.)

2/4/6/8 A / 288 V DC

(14.4 V DC bat. block)

1/2/4 A depending on

the model / 273 V DC

(13.65 V DC bat. block.)

2/4/6/8 A / 288 V DC

(14.4 V DC bat. block)

Floating voltage, battery block / string 13,65 V CC / 273 V CC 13,65 V CC / 288 V CC 13,65 V CC / 273 V CC 13,65 V CC / 288 V CC

Maximum charge current 4 A 8 A 4 A 8 A

Recharging time 7 houras at 90% 9 hours at 90%

Voltage / temperature compensation – 20 mV / ºC per battery from 25 ºC

Internal battery charger, option (B1)

Maximum charge current 4 A 8 A 4 A 8 A

Generals

Communication ports RS232 -DB9- and USB, mutually exclusive

Monitoring software Viewpower (free download)

Noise level at 1 m. < 58 dB < 60 dB < 58 dB < 60 dB

Operating temperature 0.. 40 ºC

Storage temperature 0.. 35 ºC

Storage temperature with no batteries – 15.. + 60 ºC

Operating altitude 2.400 m a.s.l.

Relative humidity 0.. 95 % non-condensing

Protection degree IP20

Dimensions -Depth x Width x Height- (mm) 592 x 250 x 576 815 x 250 x 826 592 x 250 x 576 815 x 250 x 826

Dimensions -Depth x Width x Height- (mm) B1 592 x 250 x 576

Weight (kg) -Standard equipment- 81 82 83 84 85 164 166 84 85 164 166

Weight (kg) -Equipment B0- 14 15 16 26 28 37 38 27 28 37 38

Weight (kg) -Equipment B1- 16 17 18 29 30 37 38 29 30 37 38

Safety EN-IEC 62040-1; EN-IEC 60950-1

Electromagnetic compatibility (EMC) EN-IEC 62040-2

Marking CE

Quality System ISO 9001 and ISO 140001

(**) As frequency converter, the supplied power will be 70 %

of the nominal one.

Tab. 16. General technical specifications.

9.2. GLOSARIO.

•AC.- Se denomina corriente alterna (abreviada CA en

español y AC en inglés) a la corriente eléctrica en la que

la magnitud y dirección varían cíclicamente. La forma de

onda de la corriente alterna más comúnmente utilizada

es la de una onda senoidal, puesto que se consigue una

transmisión más eficiente de la energía. Sin embargo,

en ciertas aplicaciones se utilizan otras formas de onda

periódicas, tales como la triangular o la cuadrada.

•Bypass.- Manual o automáticamente, se trata de la unión

física entre la entrada de un dispositivo eléctrico con su

salida.

•DC.- La corriente continua (CC en español, en inglés DC, de

Direct Current) es el flujo continuo de electrones a través

de un conductor entre dos puntos de distinto potencial. A

diferencia de la corriente alterna (CA en español, AC en in-

glés), en la corriente continua las cargas eléctricas circulan

siempre en la misma dirección desde el punto de mayor

potencial al de menor. Aunque comúnmente se identifica la

corriente continua con la corriente constante (por ejemplo

la suministrada por una batería), es continua toda corriente

que mantenga siempre la misma polaridad.

•DSP.- Es el acrónimo de Digital Signal Processor, que significa

Procesador Digital de Señal. Un DSP es un sistema basado

en un procesador o microprocesador que posee un juego de

instrucciones, un hardware y un software optimizados para

aplicaciones que requieran operaciones numéricas a muy alta

velocidad. Debido a esto es especialmente útil para el proce-

sado y representación de señales analógicas en tiempo real: en

un sistema que trabaje de esta forma (tiempo real) se reciben

muestras (samples en inglés), normalmente provenientes de un

conversor analógico/digital (ADC).

•Factor de potencia.- Se define factor de potencia, f.d.p.,

de un circuito de corriente alterna, como la relación entre la

potencia activa, P, y la potencia aparente, S, o bien como el

coseno del ángulo que forman los factores de la intensidad

y el voltaje, designándose en este caso como cos f, siendo f

el valor de dicho ángulo.

•GND.- El término tierra (en inglés GROUND, de donde

proviene la abreviación GND), como su nombre indica, se

refiere al potencial de la superficie de la Tierra.

•Filtro EMI.- Filtro capaz de disminuir de manera notable la

interferencia electromagnética, que es la perturbación que

ocurre en un receptor radio o en cualquier otro circuito eléc-

trico causada por radiación electromagnética proveniente

de una fuente externa. También se conoce como EMI por

45

sus siglas en inglés (ElectroMagnetic Interference), Radio

Frequency Interference o RFI. Esta perturbación puede in-

terrumpir, degradar o limitar el rendimiento del circuito

•IGBT.- El transistor bipolar de puerta aislada (IGBT, del inglés

Insulated Gate Bipolar Transistor) es un dispositivo semicon-

ductor que generalmente se aplica como interruptor con-

trolado en circuitos de electrónica de potencia. Este dispositivo

posee la características de las señales de puerta de los tran-

sistores de efecto campo con la capacidad de alta corriente y

voltaje de baja saturación del transistor bipolar, combinando

una puerta aislada FET para la entrada e control y un transistor

bipolar como interruptor en un solo dispositivo. El circuito de

excitación del IGBT es como el del MOSFET, mientras que las

características de conducción son como las del BJT.

•Interface.- En electrónica, telecomunicaciones y hard-

ware, una interfaz (electrónica) es el puerto (circuito físico)

a través del que se envían o reciben señales desde un sis-

tema o subsistemas hacia otros

•kVA.- El voltampere es la unidad de la potencia aparente

en corriente eléctrica. En la corriente directa o continua es

prácticamente igual a la potencia real pero en corriente

alterna puede diferir de ésta dependiendo del factor de

potencia.

•LCD.- LCD (Liquid Crystal Display) son las siglas en inglés

de Pantalla de Cristal Líquido,dispositivo inventado por

Jack Janning, quien fue empleado de NCR. Se trata de un

sistema eléctrico de presentación de datos formado por 2

capas conductoras transparentes y en medio un material

especial cristalino (cristal líquido) que tienen la capacidad

de orientar la luz a su paso.

•LED.- Un LED, siglas en inglés de Light-Emitting Diode

(diodo emisor de luz) es un dispositivo semiconductor

(diodo) que emite luz casi monocromática, es decir, con un

espectro muy angosto, cuando se polariza en directa y es

atravesado por una corriente eléctrica. El color, (longitud de

onda), depende del material semiconductor empleado en

la construcción del diodo, pudiendo variar desde el ultra-

violeta, pasando por el espectro de luz visible, hasta el in-

frarrojo, recibiendo éstos últimos la denominación de IRED

(Infra-Red Emitting Diode).

•Magnetotérmico.- Un interruptor magnetotérmico, o

disyuntor magnetotérmico, es un dispositivo capaz de in-

terrumpir la corriente eléctrica de un circuito cuando ésta

sobrepasa ciertos valores máximos.

•Modo On-Line.- En referencia a un equipo, se dice que

está en línea cuando está conectado al sistema, se en-

cuentra operativo, y normalmente tiene su fuente de ali-

mentación conectada.

•Inversor.- Un inversor, también llamado ondulador, es un cir-

cuito utilizado para convertir corriente continua en corriente

alterna. La función de un inversor es cambiar un voltaje de

entrada de corriente directa a un voltaje simétrico de salida de

corriente alterna, con la magnitud y frecuencia deseada por el

usuario o el diseñador.

•Rectificador.- En electrónica, un rectificador es el el-

emento o circuito que permite convertir la corriente alterna

en corriente continua. Esto se realiza utilizando diodos

rectificadores, ya sean semiconductores de estado sólido ,

válvulas al vacío o válvulas gaseosas como las de vapor de

mercurio. Dependiendo de las características de la alimen-

tación en corriente alterna que emplean, se les clasifica

en monofásicos, cuando están alimentados por una fase de

la red eléctrica, o trifásicos cuando se alimentan por tres

fases. Atendiendo al tipo de rectificación, pueden ser de

media onda, cuando solo se utiliza uno de los semiciclos de

la corriente, o de onda completa, donde ambos semiciclos

son aprovechados.

•Relé.- El relé o relevador (del francés relais, relevo) es un

dispositivo electromecánico, que funciona como un inter-

ruptor controlado por un circuito eléctrico en el que, por

medio de un electroimán, se acciona un juego de uno o

varios contactos que permiten abrir o cerrar otros circuitos

eléctricos independientes.

•SCR.- Abreviatura de «Rectificador Controlado de Silicio»,

comúnmente conocido como Tiristor: dispositivo semicon-

ductor de 4 capas que funciona como un conmutador casi

ideal.

•THD.- Son las siglas de «Total Harmonic Distortion» o «Dis-

torsión armónica total». La distorsión armónica se produce

cuando la señal de salida de un sistema no equivale a la señal

que entró en él. Esta falta de linealidad afecta a la forma de

la onda, porque el equipo ha introducido armónicos que no es-

taban en la señal de entrada. Puesto que son armónicos, es

decir múltiplos de la señal de entrada, esta distorsión no es tan

disonante y es menos fácil de detectar.

SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S MANUAL

46 SALICRU

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47

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SLC TWIN PRO2 UNINTERRUPTIBLE POWER SUPPLY (UPS)USER'S 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

Product Range

Uninterruptible Power Supplies (UPS)

Lighting Flow Dimmer-Stabilisers

DC Power Systems

Static Inverters

Photovoltaic Inverters

Voltage stabilisers

The Technical Service and Support (T.S.S.) network, Com-

mercial network and warranty information are available in

website:

www.salicru.com

REF. EL082D01 REV. D CODE 401*

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