Gamatronic Centric 3x480 Vac User manual

G
AMATRONIC
E
LECTRONIC
I
NDUSTRIES
L
TD
.
17 Hartom St., PO Box 45029, Jerusalem 9777517, Israel
Tel: [phone] Fax: [phone]
Email: [email protected] Website: www.gamatronic.com
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Release 1.7, November 2015
This user guide
is for product
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* 240 kW model
to be launched.

ii CENTRIC 3x480, User Guide, rel. 1.7
GAMATRONIC ELECTRONIC INDUSTRIES LTD.
Har Hotzvim Industrial Park
17 Hartom St., PO Box 45029, Jerusalem 9777517 Israel
Tel: [phone] Fax: [phone]
Email: inf[email protected]o.il Website: www.gamatronic.com
The equipment described in this document is not intended to be used in connection with any
application requiring fail-safe performance, unless the application design includes appropriate
redundancy. This exclusion includes, but is not limited to, the direct operation of any life support
system or any other system whose failure could lead to serious injury, death, environmental
damage or mass destruction.
Copyright 2015 by Gamatronic Electronic Industries Ltd. All rights reserved worldwide.
Any representations in this document concerning the performance of Gamatronic's product(s) are for informational purposes only
and are not warranties of future performance, either express or implied. Gamatronic's standard limited Warranty, which
accompanies its sales contract or order confirmation form, is the only warranty offered by Gamatronic Electronic
Industries Ltd. in relation thereto.
Gamatronic Electronic Industries Ltd. ("Gamatronic") warrants the products it manufactures to be free from defect for a period of
one calendar year from the date of invoice, including the date of invoice. Gamatronic's liability is limited to repairing or replacing
any defective parts in the equipment under warranty. Gamatronic reserves the right to determine whether the repair work shall be
performed at Gamatronic's factory, at the customer's premises, or at an alternate site. The customer must obtain authorization from
Gamatronic before returning any parts or equipment to Gamatronic for repair or replacement. Any items returned to Gamatronic
must be sent freight prepaid.
Gamatronic’s liability and warranty to the product are according and subject to the fulfilment and implementation by the customer of
all the terms and instructions in connection with “preventive maintenance” and “service and repair” as further detailed in the user
guide which is attached to the product and forms an integral part of it.”
Gamatronic is not responsible for any damage to the product due to unauthorized repair work, misuse or abuse of the product, or
force majeure. If the product is delivered without batteries, Gamatronic is not responsible for any damage or malfunction due to
incorrect wiring of the batteries.
Gamatronic is not liable for and the Purchaser waives any right of action it has or may have against Gamatronic for any
consequential or special damages arising out of any breach of warranty, and for any damages that the Purchaser may claim for
damage to any property or injury or death to any person arising out of its purchase or the use, operation or maintenance of the
subject product.
This warranty includes parts and labor; however, Gamatronic shall not be responsible for any labor subcontracted or performed by
the Purchaser to prepare the warranted item for return to Gamatronic or Gamatronic's agent.
The information contained in this document is proprietary and is subject to all relevant copyright, patent and other laws protecting
intellectual property, as well as any specific agreement protecting Gamatronic's rights in the aforesaid information. Neither this
document nor the information contained herein may be published, reproduced or disclosed to third parties, in whole or in part,
without the express, prior, written permission of Gamatronic. In addition, any use of this document or the information contained
herein for any purposes other than those for which it was disclosed is strictly forbidden.
Gamatronic reserves the right, without prior notice or liability, to make changes in equipment design or specifications.
Information supplied by Gamatronic is believed to be accurate and reliable. However, no responsibility is assumed by Gamatronic
for the use thereof nor for the rights of third parties which may be affected in any way by the use thereof.
This document may contain flaws, omissions or typesetting errors; no warranty is granted nor liability assumed in relation thereto
unless specifically undertaken in Gamatronic Electronic Industries Ltd. standard limited Warranty. Information contained herein is
periodically updated and changes will be incorporated into subsequent editions. If you have encountered an error, please notify
Gamatronic Electronic Industries Ltd. All specifications are subject to change without prior notice.
The product described in this document may cause interference with radio communications if not installed
and used according to the user guide and/or installation guide. Be aware that the product is intended for
use in a commercial or industrial setting. Operation of the product in a residential area may cause harmful
interference, in which case the user will be required to correct the interference at his own expense.

GAMATRONIC ELECTRONIC INDUSTRIES LTD.
CENTRIC 3x480, User Guide, rel. 1.7 iii
TABLE OF CONTENTS
1. SAFETY PRECAUTIONS....................................................................................................................1
1.1 Do’s......................................................................................................................................1
1.2 Don’ts...................................................................................................................................2
2. INTRODUCTION TO THE CENTRIC 480...............................................................................................3
2.1 System structure..................................................................................................................3
2.2 LCD Control Panel...............................................................................................................6
2.3 System controller .................................................................................................................7
2.4 UPS module (30 kVA / 30 kW).............................................................................................7
2.5 Static switch module ............................................................................................................7
2.6 Battery..................................................................................................................................7
2.7 Dc-to-dc voltage converter modules....................................................................................8
2.7.1 What the dc-dc converters do.................................................................................8
2.8 Emergency Power Off – EPO (manual)...............................................................................9
2.8.1 EPO indication ........................................................................................................9
2.8.2 Battery trip coil dry contact......................................................................................9
2.8.2.1 Restarting the UPS after EPO.................................................................................................9
3. OPERATING MODES.......................................................................................................................10
3.1 Normal mode......................................................................................................................10
3.2 Battery mode......................................................................................................................10
3.3 Bypass mode .....................................................................................................................10
4. USER INTERFACE ..........................................................................................................................11
4.1 Control panel......................................................................................................................11
4.1.1 Calibrating the touch screen.................................................................................11
4.2 Buttons and LEDs on the system controller.......................................................................12
4.2.1 “UPS off” button ....................................................................................................12
4.2.2 “Alarm” LED ..........................................................................................................12
4.2.3 “CPU active” LED..................................................................................................13
4.2.4 “CPU On/Off” button..............................................................................................13
5. CENTRIC CONTROL SYSTEM...........................................................................................................14
5.1 The main screen (main menu)...........................................................................................14
5.2 Main Menu highlights.........................................................................................................15
5.2.1 Setup.....................................................................................................................15
5.2.1.1 Time.......................................................................................................................................15
5.2.1.2 Dry contacts...........................................................................................................................15
5.2.2 Operation ..............................................................................................................16
5.2.2.1 Turning the UPS on (following normal shutdown) .................................................................16
5.2.2.2 Turning the UPS off...............................................................................................................17
5.2.3 Status....................................................................................................................18
5.2.4 Profile....................................................................................................................19
5.2.5 Log ........................................................................................................................19
5.2.6 Time ......................................................................................................................19
5.2.7 Help.......................................................................................................................19
5.3 Operating the system.........................................................................................................20
5.3.1 Turning the UPS ON.............................................................................................20
5.3.2 Turning the UPS OFF...........................................................................................20
5.3.3 Transferring the load to bypass ............................................................................20
5.3.4 Transferring the load to the inverter......................................................................20
6. CENTRIC START-UP.......................................................................................................................21
6.1 Normal (not first-time) start-up...........................................................................................21
6.2 Centric total shutdown (no ac output)................................................................................22

GAMATRONIC ELECTRONIC INDUSTRIES LTD.
iv CENTRIC 3x480, User Guide, rel. 1.7
7. CENTRIC MENU FUNCTIONS IN DETAIL.............................................................................................23
7.1 Password requirements .....................................................................................................23
7.2 SETUP menu.....................................................................................................................24
7.2.1 Setup > SYSTEM..................................................................................................24
7.2.1.1 Setup > System > NOMINAL SETTINGS..............................................................................25
7.2.1.2 Setup > System > NUMBER OF MODULES.........................................................................25
7.2.1.3 Setup > System > NUMBER OF BATTERIES.......................................................................26
7.2.1.4 Setup > System > SYSTEM TYPE........................................................................................27
7.2.1.5 Setup > System > SHUTDOWN and AUTORESTART.........................................................27
7.2.1.6 Setup > System > CONTROLLER.........................................................................................27
7.2.1.7 Setup > System > MAINTENANCE.......................................................................................29
7.2.2 Setup > MODULES...............................................................................................30
7.2.2.1 AC INPUT VOLTAGE CALIBRATION...................................................................................30
7.2.2.2 AC OUTPUT VOLTAGE CALIBRATION...............................................................................30
7.2.2.3 MODULES INPUT CURRENT CALIBRATION......................................................................30
7.2.2.4 MODULES OUTPUT CURRENT CALIBRATION..................................................................31
7.2.2.5 DC VOLTAGE CALIBRATION...............................................................................................32
7.2.2.6 AC OUTPUT VOLTAGE ADJ................................................................................................33
7.2.2.7 DC BUS VOLTAGE CALIBRATION......................................................................................33
7.2.2.8 SERIAL NUMBER .................................................................................................................34
7.2.2.9 Auto-Correction......................................................................................................................34
7.2.3 Setup > DC-DC.....................................................................................................35
7.2.3.1 Battery voltage calibration .....................................................................................................35
7.2.3.2 Dc voltage calibration ............................................................................................................37
7.2.3.3 Charger current calibration....................................................................................................38
7.2.3.4 Dc-to-dc voltage adjustments................................................................................................39
7.2.3.5 Serial Numbers......................................................................................................................39
7.2.4 Setup > BATTERY................................................................................................40
7.2.4.1 Setup > Battery > BATTERY TEST PARAMETERS.............................................................40
7.2.4.2 Setup > Battery > BATTERY CURRENT...............................................................................41
7.2.4.3 End-of-Backup voltage limit...................................................................................................42
7.2.4.4 Battery floating voltage..........................................................................................................42
7.2.4.5 Batteries per cabinet..............................................................................................................42
7.2.4.6 Setup > Battery > BATTERY CAPACITY IN Ah....................................................................42
7.2.4.7 Setup > Battery > BATTERY TEMPERATURE CONTROL...................................................42
7.2.5 Setup > STATIC SWITCH.....................................................................................44
7.2.5.1 Setup > ST.SW. > CALIBRATE BYPASS VOLTAGE...........................................................44
7.2.5.2 Setup > ST.SW. > CALIBRATE INVERTER VOLTAGE........................................................44
7.2.5.3 Setup > ST.SW. > CALIBRATE OUTPUT VOLTAGE...........................................................44
7.2.5.4 Setup > ST.SW. > CALIBRATE OUTPUT CURRENT ..........................................................44
7.2.5.5 Setup > ST.SW. > HIGH-LEVEL SETUP ..............................................................................45
7.2.5.6 Setup > ST.SW. > OVERLOAD HYSTERISIS......................................................................45
7.2.6 Setup > ALARMS..................................................................................................46
7.2.6.1 Setup > Alarms > SET ALARM PRIORITIES........................................................................46
7.2.6.2 Setup > Alarms > ALARM LIMITS.........................................................................................46
7.2.7 Setup > CONNECTIVITY......................................................................................47
7.2.7.1 Network configuration options ...............................................................................................47
7.2.7.2 SNMP configuration options (optional feature)......................................................................47
7.2.7.3 Serial communication (optional feature)................................................................................49
7.2.7.4 Modbus (optional feature)......................................................................................................49
7.2.7.5 Remote shutdown (optional feature)......................................................................................63
7.2.7.6 Email configuration (optional feature)....................................................................................65
7.2.7.7 Controller host name .............................................................................................................68
7.2.8 Setup > TIME........................................................................................................69
7.2.8.1 Setup > Time > ADJUST DATE / TIME.................................................................................69
7.2.8.2 Setup > Time > CHANGE TIME ZONE.................................................................................69
7.2.8.3 Setup > Time > SET LAST MAINTENANCE DATE..............................................................69
7.2.9 Setup > ASSIGN SITE ID .....................................................................................69
7.2.10 Setup > DRY CONTACTS (optional feature)........................................................70
7.2.10.1 Setup > Dry contacts > INPUT DRY CONTACTS.................................................................70
7.2.10.2 Setup > Dry contacts > OUTPUT DRY CONTACTS.............................................................71

GAMATRONIC ELECTRONIC INDUSTRIES LTD.
CENTRIC 3x480, User Guide, rel. 1.7 v
7.2.10.3 Generator Mode setup...........................................................................................................74
7.2.11 Setup > SAVE & RESTORE.................................................................................75
7.2.11.1 Setup > Save & restore > SAVE SETTINGS.........................................................................75
7.2.11.2 Setup > Save & restore > RESTORE SETTINGS.................................................................75
7.2.11.3 Setup > Save & restore >RESTORE FACTORY SETTINGS................................................75
7.2.12 Setup > CHANGE AUTHORIZATION LEVEL ......................................................76
7.2.12.1 Setup > Authorization > SET USER AUTHORIZATION LEVEL............................................76
7.2.12.2 Setup > Authorization > ENABLE / DISABLE REMOTE CONTROL.....................................76
7.3 OPERATION......................................................................................................................77
7.3.1 Operation > SWITCH ON/OFF .............................................................................77
7.3.1.1 Operation > Switch on/off > SYSTEM OFF...........................................................................77
7.3.1.2 Operation > Switch on/off > SYSTEM ON.............................................................................77
7.3.1.3 Operation > Switch on/off > MODULES OFF........................................................................77
7.3.1.4 Operation > Switch on/off > MODULES ON..........................................................................77
7.3.1.5 Operation > SWITCH ON/OFF > DC/DC OFF ......................................................................77
7.3.1.6 operation > SWITCH ON/OFF > DC/DC On..........................................................................78
7.3.1.7 Operation > Switch on/off > CONTROLLER RESTART........................................................78
7.3.1.8 Operation > Switch on/off > CONTROLLER shutdown.........................................................78
7.3.2 Operation > TRANSFER LOAD............................................................................78
7.3.2.1 Operation > Transfer load > TRANSFER LOAD TO INVERTER..........................................78
7.3.2.2 Operation > Transfer load > TRANSFER LOAD TO BYPASS..............................................78
7.3.3 Operation > BATTERY TEST ...............................................................................78
7.4 STATUS.............................................................................................................................79
7.5 PROFILE............................................................................................................................81
7.5.1 Profile > SYSTEM.................................................................................................81
7.5.2 Profile > BATTERY ...............................................................................................82
7.5.3 Profile > ST.SW. ...................................................................................................82
7.5.4 Profile > ALARMS.................................................................................................82
7.5.5 Profile > IDENTIFICATION...................................................................................83
7.6 LOG....................................................................................................................................84
7.6.1 The "Alarms" button on the log detail screen........................................................86
7.7 CONNECTIVITY ................................................................................................................88
7.8 TIME...................................................................................................................................89
7.9 LANGUAGE.......................................................................................................................90
7.10 HELP..................................................................................................................................90
8. MINOR REAR PANEL CONNECTORS.................................................................................................91
9. OPERATING THE MAINTENANCE BYPASS SWITCH.............................................................................93
9.1 Putting the UPS in maintenance bypass mode .................................................................93
9.2 Returning the UPS to normal operation.............................................................................94
10. TROUBLESHOOTING ......................................................................................................................95
10.1 Troubleshooting “Dc high”................................................................................................101
10.2 Troubleshooting “Dc low”.................................................................................................102
10.3 Troubleshooting “Bypass mode”......................................................................................103
10.4 Troubleshooting “UPS modules”......................................................................................104
10.5 Troubleshooting “No output”............................................................................................111
10.6 Troubleshooting “Static switch”........................................................................................112
11. PERIODIC PREVENTIVE MAINTENANCE ..........................................................................................115
12. THE BUILT-IN WEB INTERFACE (OPTION).......................................................................................115
12.1 Preliminaries to use of the Web interface........................................................................115
13. CENTRIC SPECIFICATIONS............................................................................................................116
LIST OF FIGURES
Figure 1: Major components of the Centric 3x480 Vac (240 kW model) .............................................4

GAMATRONIC ELECTRONIC INDUSTRIES LTD.
vi CENTRIC 3x480, User Guide, rel. 1.7
Figure 2: Major components of the Centric 3x480 Vac (120 kW model) .............................................5
Figure 3: System control panel, displaying the main menu..................................................................6
Figure 4: System control panel, with current navigation path..............................................................6
Figure 5: The control panel ................................................................................................................11
Figure 6: The Centric’s top front panel...............................................................................................12
Figure 7: The main screen and its features........................................................................................14
Figure 8: The Operation submenu .....................................................................................................16
Figure 9: The "Turn off / on" submenu...............................................................................................16
Figure 10: The system requests confirmation....................................................................................17
Figure 11: The "Turn off / on" submenu.............................................................................................17
Figure 12: The system requests confirmation.....................................................................................17
Figure 13: The Status screen.............................................................................................................18
Figure 14: Main menu, UPS off, normal mode...................................................................................21
Figure 15: Centric main menu............................................................................................................23
Figure 16: “Key” icon on function button ............................................................................................23
Figure 17: "Setup" menu ....................................................................................................................24
Figure 18: "Setup > SYSTEM" options...............................................................................................25
Figure 19: "Setup > Modules" options................................................................................................30
Figure 20: Measurement point for calibration and adjustment of voltages and currents...................31
Figure 21: Dc voltage calibration........................................................................................................32
Figure 22: Measure the module’s dc voltage between the dc bus and midpoint...............................33
Figure 23: "Setup > DC-to-DC" options..............................................................................................35
Figure 24: Battery bus bars and midpoint bus bar in Centric’s underbelly.........................................36
Figure 25: The “Battery voltage calibration” screen...........................................................................36
Figure 26: Dc-dc blocks numbering sequence...................................................................................37
Figure 27: Dc voltage calibration screen............................................................................................37
Figure 28: Charger current calibration screen....................................................................................38
Figure 29: Dc/Dc voltages adjustment screen ...................................................................................39
Figure 30: "Setup > Battery" options..................................................................................................40
Figure 31: "Setup > Static Switch" options.........................................................................................44
Figure 32: "Setup > Alarms" options ..................................................................................................46
Figure 33: "Setup > Connectivity" options..........................................................................................47
Figure 34: Setup > Connectivity > SNMP configuration options........................................................48
Figure 35: Creating a new community................................................................................................48
Figure 36: Community name accepted ..............................................................................................48
Figure 37: Defining serial communication parameters.......................................................................49
Figure 38: Defining Modbus communication parameters...................................................................50
Figure 39: Remote shutdown submenu .............................................................................................63
Figure 40: New shutdown destination................................................................................................64
Figure 41: Select the shutdown target and press the arrow...............................................................64
Figure 42: Remote shutdown menu with target destination added....................................................64
Figure 43: Shutdown destination screen............................................................................................65
Figure 44: Example of email message body......................................................................................65
Figure 45: The email configuration menu...........................................................................................66
Figure 46: “Add new recipient” line.....................................................................................................67
Figure 47: New email recipient screen...............................................................................................67
Figure 48: Alarms button on email recipient screen...........................................................................67
Figure 49: Alarm selection screen for email recipient........................................................................68
Figure 50: "Setup > Time" options......................................................................................................69
Figure 51: Assigning a site ID ............................................................................................................69
Figure 52: "Setup > Dry Contacts" option ..........................................................................................70
Figure 53: Defining an input dry contact.............................................................................................71

GAMATRONIC ELECTRONIC INDUSTRIES LTD.
CENTRIC 3x480, User Guide, rel. 1.7 vii
Figure 54: Example of an output dry contact linked to an alarm........................................................73
Figure 55: Generator mode setup screen..........................................................................................74
Figure 56: "Setup > Save & Restore" options....................................................................................75
Figure 57: "Setup > Authorization" option..........................................................................................76
Figure 58: The "Operation" option on the main menu........................................................................77
Figure 59: "Main Menu > Status" option.............................................................................................79
Figure 60: The Status Screen ............................................................................................................79
Figure 61: "Main Menu > Profile" options...........................................................................................81
Figure 62: "Main Menu > Log" options...............................................................................................84
Figure 63: Listing of the log file contents............................................................................................85
Figure 64: Log record - detailed display.............................................................................................86
Figure 65: "Alarms" display from the log detail screen.......................................................................87
Figure 66: "Main Menu > Connectivity" option...................................................................................88
Figure 67: "Connectivity" display from main menu.............................................................................88
Figure 68: "Main Menu > Time" option...............................................................................................89
Figure 69: The "Time" function on the main menu.............................................................................89
Figure 70: "Main Menu > Language" option.......................................................................................90
Figure 71: "Main Menu > Help" option................................................................................................90
Figure 72: Location of minor connectors on the controller’s rear panel.............................................91
Figure 73: Close-up of connector group 1..........................................................................................91
Figure 74: Close-up of connector group 2..........................................................................................92
Figure 75: Pin numbers in D9 connectors..........................................................................................92
Figure 76: Normal position of the maint. bypass switches.................................................................93
Figure 77: Inverter and bypass synchronized....................................................................................93
Figure 78: The system is in bypass mode..........................................................................................94
Figure 79: Switch positions in maint. bypass mode...........................................................................94
Figure 80: Last shutdown reason.....................................................................................................104
Figure 81: Shutdown reason in hex, and Fault_word.......................................................................105
Figure 82: Structure of Fault_word...................................................................................................106
Figure 83: Structure of Shutdown_reason........................................................................................107
Figure 84: The "Detail 2" or "Technician data 2" screen..................................................................108
Figure 85: Dc voltage screen ...........................................................................................................108
Figure 86: Calibration menu.............................................................................................................109
Figure 87: Status screen ..................................................................................................................112
Figure 88: Measurements on the STSW tab....................................................................................112
Figure 89: Voltage and current measmts. on the inverter output tab...............................................113
Figure 90: Bypass frequency measured at the static switch............................................................113
Figure 91: “Setup nominal values” screen .......................................................................................113
Figure 92: Setup > STSW > High-level setup..................................................................................114
LIST OF TABLES
Table 1: Key to Figure 1.......................................................................................................................4
Table 2: Key to Figure 2.......................................................................................................................5
Table 3: Battery lifetime vs. environmental temperature as per Eurobat.............................................7
Table 4: Features of the main screen.................................................................................................14
Table 5: Watchdog status and the state of the “CPU Active” LED.....................................................28
Table 6: Holding Registers for Modbus queries.................................................................................51
Table 7: Description of email parameters...........................................................................................66
Table 8: Alarms that can trigger output dry contacts..........................................................................72
Table 9: Key to Figure 60 (the Status screen) ...................................................................................80
Table 10: Log message types (alarm types)......................................................................................84

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viii CENTRIC 3x480, User Guide, rel. 1.7
Table 11: Key to Figure 72.................................................................................................................91
Table 12: Assignments for D9 connectors on rear of controller.........................................................92
Table 13: Troubleshooting table.........................................................................................................96
Table 14: Interpreting Fault_word ....................................................................................................106
Table 15: Interpreting Shutdown_reason.........................................................................................107
Table 16: Technical specifications ...................................................................................................116
STANDARDS AND CONVENTIONS
•This user manual contains diagrams which include images of the display screen of the UPS. Unless
otherwise indicated, the readings shown in the screen images are only illustrative, and are not intended to
match the readings on a specific system in a particular environment.
•Operation and control of the Centric UPS is accomplished through a touch-sensitive LCD display screen. In
this manual, when explaining how to navigate the control software via the touch-sensitive screen, the terms
"tap", "press", "choose", and "select" may be used interchangeably to indicate selection of a screen option.

GAMATRONIC ELECTRONIC INDUSTRIES LTD.
CENTRIC 3x480, User Guide, rel. 1.7 1
1. SAFETY PRECAUTIONS
The PowerPlus UPS system is designed for industrial applications and harsh environments.
Nevertheless the PowerPlus should be handled with care, according to the following guidelines.
WARNING! HIGH TOUCH CURRENT!
EARTH CONNECTION ESSENTIAL BEFORE CONNECTING SUPPLY.
1.1 Do’s
•Read this manual carefully before starting installation and operation of the UPS.
•Review the safety precautions described below to avoid injury to users and damage to the
equipment.
•This UPS is intended for installation in a temperature-controlled, indoor area that is free
from conductive contaminants.
•All power connections must be completed by a licensed electrician who is experienced in
wiring this type of equipment, and who is familiar with the local electrical codes and
regulations. Improper wiring may cause injury to personnel, or death, or damage to the
equipment.
•Ensure all power is disconnected before performing installation or maintenance.
•Leave at least 20 cm of clearance space between the ventilation openings of the UPS and other
objects or walls.
•The UPS must be well grounded to the building’s grounding system with a conductor that has a
current carrying capacity that matches the rating of the UPS.
•Battery installation, battery maintenance, and battery replacement shall be performed only by
authorized service personnel.
•Pay attention to all DANGER, CAUTION, and WARNING notices affixed to the inside and outside
of the UPS.
•Keep the surroundings clean, uncluttered and free from excess moisture.
•Keep the operating environment within the parameters stated in this document.
•Allow only qualified technicians to service the UPS. There are no user-serviceable components. Do
not try to repair it yourself!
•Use the UPS only for its intended purpose.
•The batteries should preferably be installed next to the UPS, or as close to it as is practically
possible.
•If you remove a UPS module from the Centric while the module is operating, wait five minutes
before reinserting the module. This allows the module’s capacitors time to discharge.
•FAST FUSES (SEMICONDUCTOR FUSES) must be used between the battery and the Centric,
and on the rectifier ac input line. For example, the Ferraz Shawmut A70QS fuse.

GAMATRONIC ELECTRONIC INDUSTRIES LTD.
2 CENTRIC 3x480, User Guide, rel. 1.7
1.2 Don’ts
•Do not open the cover of the UPS or the battery cabinets under any circumstances. All UPS panels
and doors should be closed.
•Do not insert any objects through the ventilation holes.
•Do not put objects on the UPS.
•Do not move the UPS while it is operating.
•Do not use the UPS outdoors.
•Do not turn the UPS upside down during transportation.
•Do not connect or disconnect the cable to the battery cabinet before the battery circuit breaker is
turned OFF.
•Do not turn ON the battery circuit breaker when the battery cabinet is disconnected from the UPS.
•Do not install the UPS next to gas or electrical heaters. A restricted location is recommended in
order to prevent access by unauthorized personnel.
•If you remove a UPS module from the Centric while the module is operating, do not reinsert the
module immediately. Wait five minutes.
WARNING - RISK OF LETHAL ELECTRIC SHOCK:
This UPS receives power from more than one source! Disconnection of
all ac sources, and of the dc source, is required to de-energize this unit
before servicing.
WARNING - RISK OF LETHAL ELECTRIC SHOCK:
Do not touch uninsulated battery terminals.