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G-Tec LibraPro User Manual

From 10 to 80 kva three phase output
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LibraPro
from 10 to 80 kVA three phase output
User Manual

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Summary of Contents for G-Tec LibraPro

  • Page 1 LibraPro from 10 to 80 kVA three phase output User Manual...
  • Page 2 Pag. 2 / 57 0MNLIBRAPROK10NPENUA 01...
  • Page 3 Thank you for choosing our product. The factory is highly specialized in the development and production of uninterruptible power supplies (UPS). The UPSs of this series are high quality products, carefully designed and manufactured to ensure optimum performance. Symbols used in the manual In this manual, some operations are shown by graphic symbols to alert the reader to the dangerous nature of the operations: Possibility of serious injury or substantial damage to the device, unless adequate...
  • Page 4 Definition of “operator” and “specialized technician” The professional figure responsible for accessing the equipment for ordinary maintenance purposes is defined with the term operator. This definition covers personnel that know the operating and maintenance procedures for the equipment, and that have been: 1.
  • Page 5 GENERAL PRECAUTIONS This manual contains detailed instructions for the use, installation and start-up of the LIBRAPRO. Read the manual carefully before installation. For information on using the LIBRAPRO, the manual should be kept close at hand and consulted before carrying out any operation on the device.
  • Page 6 This page is left blank intentionally Pag. 6 / 57 0MNLIBRAPROK10NPENUA 01...

  • Page 7: Table Of Contents

    NSTALLATION ENVIRONMENT Ambient conditions: ...................... 10 Dimensions of the premises ..................10 Cooling of the premises ....................11 Air change for battery premises ................... 11 LIBRAPRO ............12 IN SINGLE CONFIGURATION Set-up of the electrical system ..................12 3.1.1 ac Input ............................12 3.1.2...
  • Page 8 Electrical system set-up ....................37 4.2.1 Input ..............................37 4.2.2 Differential............................37 4.2.3 Emergency power off device (EPO) ....................37 4.2.4 External maintenance by-pass......................38 Mains, load and battery connections ................39 4.3.1 UPS AC input / output power connection ..................39 4.3.2 Power connections battery side.

  • Page 9: Preliminary Operations

    Preliminary operations Removing the packaging and positioning the device On delivery, the packaging must be inspected to ensure that it is whole and that it has not been crushed or dented. Check in particular that neither of the two impact resistant devices on the packaging is red; if one of them is red, follow the instructions on the packaging.

  • Page 10: Installation Environment

    Insert the forks of the fork-lift truck in the lower part of the device, from the front or back, and ensure that they stick out about 30 cm on the other side. If a transpallet is used, raise the device only as much as is strictly necessary. Secure the device to the transpallet or fork-lift before moving it.

  • Page 11: Cooling Of The Premises

    Cooling of the premises The recommended operating temperature for the lifetime of the UPS and of the batteries is between 20 and 25°C. The lifespan of the battery depends on the operating temperature; with an operating temperature of between 20°C and 30°C, the lifespan of the batteries is halved.

  • Page 12: Librapro In Single Configuration

    LIBRAPRO in single configuration The operations described in this chapter must be carried out exclusively by a specialized technician. Set-up of the electrical system 3.1.1 ac Input The UPS input must have a max. current protection device. The protection device should be sized according to the...

  • Page 13: Selectivity

    3.1.2 Selectivity The system where the UPS is inserted must be set up in such a way that in the event of a shortcircuit on one of the lines downstream of the UPS, the fuse on the output opens while the upstream fuse normally works. This is known as selectivity, and ensures that the remaining feeders maintain the power supply.

  • Page 14: Battery

    [kVA] battery Permanent battery eq. Current [A] 3.1.4 Differential (RCD) If the LIBRAPRO protection against electric shock uses differential current devices (RCD), these have to have the following characteristics: Sensitivity 300mA sensitive direct current and unidirectional components (class B) insensitive to transient current pulses delay greater than or equal to 0.1 s.

  • Page 15: Backfeed Protection

    3.1.5 Backfeed protection The LIBRAPRO is provided with a device to prevent voltage backfeed on the input line due to an internal fault. This protection device works by switching off the inverter if the current flow is faulty, thereby causing voltage backfeed on the by-pass line during operation from the inverter.

  • Page 16: Mains, Load And Battery Connections

    UPS and with the battery cabinet, if present. Input neutral The power supply to the LIBRAPRO input (by-pass line) must be three-phase with neutral. The neutral conductor is necessary only on by-pass line. Input line without neutral.

  • Page 17: External Battery Connections

    Input and output line without neutral If the input line and the load are three-phase without neutral type (and only in this case), a kit to create the signal neutral (optional) may be used. The kit may only be used by a specialized technician. OPTIONAL LOAD MAINS LINE...
  • Page 18 CABINET DISCONNECTOR For systems with 4 or more battery cabinets, use a Battery switch cabinet where the cables can be parallel-connected (refer to the marketing department). For the sizing of the cables and connection procedures, refer to the “INSTALLATION DRAWING” attached to the battery cabinet. SWBAT1 SWBAT4 For back-up times requiring a greater number of Battery cabinets, contact the marketing department.

  • Page 19: Connection Of Signals And Remote Commands

    Connection of signals and remote commands To the position of the signal and remote connection, refer to the “INSTALLATION DRAWINGS” supplied with the UPS. 3.4.1 EPO connector (emergency power off control) If the jumper on the connector is opened, the voltage on the UPS output will be cut.

  • Page 20: Rs232

    The position of the contacts shown is without the alarm present. The contacts can take a max. current of 1A with 250Vac. RL 1 RL 2 RL 3 IN 1 Please refer to APPENDIX A for the list of alarms and commands that can be programmed. The change of function may be made by the technical support personnel.

  • Page 21: Parallel (Optional)

    Modem male female female male maschio femmina DB9 male RS232-1 femmina maschio RS232-2 For connection with a modem use a cable standard. See the diagram for connection with a modem. Computer male female female male maschio femmina femmina maschio RS232-2 3.4.4 Parallel (optional) To be used for the connection of UPSs in parallel configuration.

  • Page 22: Remote Alarms (Optional Card)

    3.4.7 MULTI I / O (optional) The function of this accessory is to convert external signals from the LIBRAPRO(e.g. temperature of environment, temperature of battery premises, etc.) into signals by means of relay contacts or via serial output RS485 in MODBUS protocol.

  • Page 23: Swout And Swmb Aux - External Temperature Sensor(Optional)

    T = external temperature sensor connection. SWOUT and SWMB aux Terminals to be used for the connection of the auxiliary contacts of switches inserted in the LIBRAPRO system, see also the section on “Insertion of additional system sectioning devices” on page 38. Inserting...
  • Page 24 External temperature sensor (terminal T) Battery cabinet The use of the temperature sensor allows the UPS control logic to regulate the load voltage values and keep the battery working temperature constant. + / - It is necessary to use the specific kit supplied by the manufacturer only: any uses which do not comply with the specifications may cause malfunctioning or breakage to the appliance.
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  • Page 26: Start-Up Procedure

    The mains power supply has to be present in order to start up the LIBRAPRO The LIBRAPRO output terminals will be powered in this phase and all applications connected will receive voltages. All users must therefore be warned before carrying out the start-up procedure.

  • Page 27: Battery Operation Check

    Once the UPS has been installed, check that the message NORMAL OPERATION appears on the first line of the display panel and that the UPS model is displayed in the left-hand corner of the second line according to the coding shown below: X000YZZ LIBRAPRO model 000 output power [kVA] Y output frequency: Y = _...

  • Page 28: Operating Modes

    The various equipment operating modes are described below. setting The operating mode is set when the LIBRAPRO is installed; it may be changed subsequently but this should always be done by a specialized technician. 3.6.1 On - line - factory setting - load always powered by inverter, in the event of an input mains failure the load continues to be powered from the inverter using the energy stored by the batteries.

  • Page 29: Standby-Off (With Mains Present The Load Is Not Powered)

    3.6.3 Standby-off (with mains present the load is not powered) load not powered, in the event of an input mains failure the load is powered from the inverter using the energy stored by the batteries. Standby-Off: if there is a mains power supply, UPS output is zero. The RECTIFIER remains on and keeps the battery charged.

  • Page 30: Personalizations

    Procedure to transfer the load from UPS onto maintenance by-pass. Procedure not applicable in the frequency converter With several LIBRAPRO s connected in parallel, follow the procedure described in the section on “bypass for maintenance” of chapter “Parallel version”. The sequences of operations to be carried out to place the UPS in maintenance bypass are shown below. The procedure varies depending on the initial state of the UPS.

  • Page 31: Ups And Load Shutdown

    Procedure b) The by-pass line is outside the acceptance field; the following message is seen on the display panel: BYPASS VOLTAGE FAIL or SWBY OFF and green LED 1 will flash (See “Display and control panel” manual 1) open all the switches on the device (SWIN, SWOUT, SWBY and the battery cabinet disconnectors/fuses).

  • Page 32: Block Diagram

    3.10 Block diagram Pag. 32 / 57 0MNLIBRAPROK10NPENUA 01...

  • Page 33: Components Of The Block Diagrams

    3.11 Components of the block diagrams This UPS is made up of the following sub-assemblies: RECTIFIER This represents the input stage and its function is to convert the alternating voltage of the power supply line into direct voltage. black out Rectifier start-up can be programmed from display panel.
  • Page 34 (inverter output) to an unprotected line (by-pass line) or vice versa. The LIBRAPRO is provided with a device to prevent the backfeed of voltage to the input line after an internal fault, known as “BACKFEED PROTECTION”.
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  • Page 36: Librapro In Parallel Configuration

    LIBRAPRO in parallel configuration Introduction This UPS may be connected in a parallel configuration to increase both the reliability of the power supply to the load and the power available in output. Up to 8 UPSs can be parallel-connected. It is recommended to connect units of the same power.

  • Page 37: Electrical System Set-Up

    Electrical system set-up All the information contained in the section on electrical system set-up in relation to the LIBRAPRO (page 12) remains valid with the addition of the information set out below. 4.2.1 Input The instructions seen in the first part of the manual for a single UPS remain valid; each unit must be protected with equivalent fuses or switches.

  • Page 38: External Maintenance By-Pass

    4.2.4 External maintenance by-pass. In some cases, in order to facilitate maintenance operations of the individual units making up the system, it may be advisable to install an external maintenance by-pass. The new disconnector located on the by-pass line (Q2) must be provided with auxiliary contacts (one for each UPS). The position of the contact is opposite to the position of the switch, thus the contact must be closed when the disconnector is open.

  • Page 39: Mains, Load And Battery Connections

    Mains, load and battery connections Mains, load and battery connections. All the information contained in the section “Mains, load and battery connections” (page 15) in relation to the UPS remains valid with the addition of the information set out below. 4.3.1 UPS AC input / output power connection Refer to the INSTALLATION DRAWINGS manual for information on how to select the cable sections for each UPS.

  • Page 40: Power Connections Battery Side

    4.3.2 Power connections battery side. BATTERY CABINET if provided: In order for the battery cabinet to be connected to the LIBRAPRO, it must be provided with a fuses device. Each UPS with its own battery cabinet max 3 battery cabinet...
  • Page 41 TO CONNECT MORE UPS IN PARALLEL WITH ONLY ONE BATTERY: Between battery cabinets and the UPS must be positioned a Battery switches cabinet , to allow the single UPS maintenance, as shows the picture. max 5 battery cabinet SWBAT SWBAT Battery switches cabinet max 8 UPS...

  • Page 42: Connection Of Signals

    - RJ45-flat-adapter signals parallel card. N.B.: the LIBRAPRO may be provided with two versions of parallel card that differ in the type of switch used (type 1 or type 2). The difference between the two switches is the position of the control lever.
  • Page 43 Using the cable with two RJ45 terminals provided with each UPS (A), make the connections as shown below: single LIBRAPRO configured in parallel If it is required to use a UPS that has been configured as a parallel unit on its own, the signal card must be jumpered with the cable provided as shown below.
  • Page 44 LIBRAPRO in paralell D UPS1 LED on, UPS2 LED off, UPS3 LED off SW1 start position UPS1, SW1 cont position UPS2, UPS3 UPS 2 UPS 2 UPS 1 To add other parallel UPSs, a “UPS PARALLEL CABLE” must be added for each new UPS connected.

  • Page 45: Start-Up Procedure

    Start-up procedure Before starting up the whole system for the first time, some tests have to be performed to check that the UPSs are connected to each other correctly. A) open all the switches and disconnectors on the UPSs (SWIN, SWBY, SWOUT and SWMB) and on the battery cabinets.

  • Page 46: Operating Modes

    Operating modes Several LIBRAPRO units connected in parallel share the current absorbed by the load between them. In a system with several UPSs connected in parallel, there is a single Master unit and the remaining units will be SLAVES. The UPSs are all exactly the same and the Master is chosen on start-up. The Master unit is shown on the display panel by the capital letter “P”...
  • Page 47 Example of parallel operation For the sake of simplicity, the instructions shown below refer to a system with three UPSs, but are equally valid for more complex systems. Let us assume that the signal cable is not damaged and that the UPSs are in the following state: UPS STATUS 1) Normal operation, Master unit 2) Normal operation, Slave unit...

  • Page 48: By-Pass For Maintenance

    SWMB must not be closed on a UPS that is off and that is connected in parallel with other units operating normally. This operation may cause a fault on the UPSs which may create a dangerous voltage at the output. SWMB may be closed with the LIBRAPRO operating by following the procedure described in the section “Operating modes” .
  • Page 49 N.B.: After carrying out the operations indicated above, personnel must wait around ten minutes for the capacitors to discharge before working on the inside of the LIBRAPRO. After the maintenance operations have finished, restart the UPS.
  • Page 50 Now switch on UPS 3 (the added UPS). With the lever of SW1 in the start position in one UPS only and the lever in the cont position on all the others, check that all the UPSs are operating normally and that the system is sharing the output power. Example of hot removal With hot removal, it is not necessary to shut down all the UPSs of the system in order to remove one.
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  • Page 52: Maintenance

    Maintenance The uninterruptible power supply is designed and produced to last a long time even in the most severe service conditions. It should be remembered however that this is electrical power equipment, which requires periodic controls. Moreover, some components have a limited lifespan and as such must be periodically checked and replaced should conditions so dictate: in particular the batteries, the fans and in some cases the electrolytic condensers.
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  • Page 54: General Characteristics

    ≥ 0,9 LIBRAPRO + F LIBRAPRO 12P not available < 5 %, ≥ 0,93 LIBRAPRO 12P + F not available < 3 %, ≥ 0,95 (*) load 100%, rated input voltage, and full charge battery. Pag. 54 / 57 0MNLIBRAPROK10NPENUA 01...
  • Page 55 Electrical Data INVERTER Rated power Pf 0.9 inductive [kVA] Active power Pf 1 [kW] 13,5 Rated voltage 400Vca 3-phase+N (configurable from 380V to 415V) Rated voltage adjustment field from 360 to 420V Rated frequency [Hz] 50 or 60 (configurable) Static variation ±...

  • Page 56: Appendixa - Remote Commands And Alarms Card

    Appendix A - remote commands and alarms card - Technical support personnel may give the COMMAND and the three ALARMS functions that are different to the standard configuration of the alarms card (see page 19) . The options available are listed below: ALARMS: DISTURBANCES ON BYPASS LINE MANUAL BYPASS, SWMB ON...
  • Page 57 To be used when the load may Forces the selection of the UPS support mains interference or Standby-ON operation. frequency variations and it is thus Standby ON This is done with the contact kept preferred improve system closed; if reopened, the command is efficiency.

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