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LEGRAND UPS - User Manual

LEGRAND UPS
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UPS user manual
Manuel de l’utilisateur de l’ASI
Utilizzo dell’UPS
Rev.
Descrizione
Description
Data
Date
Emesso
Issued
Approvato
Approved
Lingua
Language
Pagina
Page
di Pag.
of Pag.
B VR 31-17 17.02.17 R. Soldani G. Senesi
E/I 1 164
Codice / Code
OMG38225
UPS USER MANUAL
MANUEL DE L’UTILISATEUR DE L’ASI
UTILIZZO DELL’UPS
Index / Indice
ENGLISH LANGUAGE ................................................................................... 9
1
SCOPE ................................................................................................... 11
2
SAFETY RULES AND WARNINGS ....................................................... 12
3
GENERAL UPS DESCRIPTION ............................................................. 13
3.1 TYPOLOGY ..................................................................................................................... 13
3.2 SYSTEM DESCRIPTION ................................................................................................. 13
3.2.1 Rectifier ................................................................................................................... 13
3.2.2 Inverter .................................................................................................................... 14
3.2.3 Battery and battery charger ................................................................................... 14
3.2.4 Static bypass ........................................................................................................... 14
3.2.5 Manual bypass ........................................................................................................ 14
3.3 OPERATING STATUS ..................................................................................................... 15
3.3.1 Normal operation .................................................................................................... 15
3.3.2 Green Conversion ................................................................................................... 15
3.3.3 Bypass operation .................................................................................................... 16
3.3.4 Battery operation .................................................................................................... 16
3.3.5 Manual bypass ........................................................................................................ 17

Table of Contents

Questions and Answers

  • S
    Scott CastroAug 25, 2025
    What to do if my LEGRAND Power Supply displays a SHORT CIRCUIT?
    • R
      Ryan MitchellAug 26, 2025
      If your LEGRAND Power Supply indicates a SHORT CIRCUIT, the issue might be related to the load. Check the loads connected to the UPS output. If the alarm persists, contact our Technical Support Service.
  • G
    greerthomasAug 26, 2025
    What to do if my LEGRAND Power Supply shows an OVERLOAD?
    • J
      juliaberryAug 26, 2025
      If your LEGRAND Power Supply displays an OVERLOAD message, it indicates an output overload. Check the loads connected to the UPS output. If the alarm persists, contact our Technical Support Service.
  • T
    Tyler EricksonAug 27, 2025
    What to do if my LEGRAND Power Supply shows a HIGH TEMPERATURE?
    • A
      Ashlee MurrayAug 27, 2025
      If your LEGRAND Power Supply is showing a HIGH TEMPERATURE alarm, this could be due to several reasons: a fault of the heat sink cooling fans, high room temperature, high cooling air temperature, or tripping of the DC protection fuses. Check the fans operation, clean the ventilation grids and air filters (if any), and check the air conditioning system (if present) and the status of the DC fuses on the inverter bridge input. If the alarm persists, contact our Technical Support Service.
  • K
    Kelly WilliamsAug 27, 2025
    What to do if my LEGRAND UPS Power Supply displays a BYPASS FAULT?
    • L
      lnguyenAug 27, 2025
      If your LEGRAND Power Supply indicates a BYPASS FAULT, it may be due to bypass line instability or failure, or wrong phase rotation. Check the connections to the mains and the stability of the mains voltage. If the alarm persists, contact our Technical Support Service.
  • M
    marksimmonsAug 28, 2025
    What to do if my LEGRAND Power Supply shows a DC VOLTAGE FAULT?
    • P
      Paul JonesAug 28, 2025
      If your LEGRAND Power Supply displays a DC VOLTAGE FAULT, the battery may have reached the discharge voltage due to a power failure, or there may be a measuring circuit failure. Check the actual value of the measured DC voltage. In case of mains failure, wait for the AC voltage to be restored. Also, check which alarms are present and carry out the indicated procedures. You can also try to restart the device. If the alarm persists, contact our Technical Support Service.
  • E
    Erica BrownAug 29, 2025
    How to fix LEGRAND UPS Power Supply INPUT WRONG SEQ error?
    • C
      Caitlin MillerAug 29, 2025
      If your LEGRAND Power Supply shows an INPUT WRONG SEQ error, it indicates a wrong connection of power cables. Check the phase rotation. If the alarm persists, contact our Technical Support Service.
  • N
    ncohenAug 30, 2025
    What to do if my LEGRAND UPS Power Supply displays a BOOSTER FAULT?
    • S
      stephanieturnerAug 30, 2025
      If your LEGRAND Power Supply displays a BOOSTER FAULT, it could be a fault in the rectifier control circuit. Check which alarms are present and carry out the indicated procedures. You can also try to restart the device. If the alarm persists, contact our Technical Support Service.
  • F
    fwilliamsAug 23, 2025
    What to do if my LEGRAND UPS Power Supply shows a MAINS FAULT?
    • F
      Frederick SpencerAug 23, 2025
      If your LEGRAND Power Supply displays a MAINS FAULT, it could be due to mains instability or failure, or wrong phase rotation. Check the connections to the mains and ensure the stability of the mains voltage. If the alarm persists, contact our Technical Support Service.
  • C
    Christopher ReedAug 31, 2025
    What does 'BATTERY IN TEST' mean on my LEGRAND UPS Power Supply, and what should I do?
    • Y
      Yolanda BerrySep 1, 2025
      If your LEGRAND Power Supply shows 'BATTERY IN TEST', it means a battery test has started automatically or manually. Wait for the test to end, and then check for any possible battery faults.
  • C
    Chad RiveraSep 1, 2025
    What to do if my LEGRAND UPS Power Supply shows a BCB OPEN alarm?
    • G
      Glenn AndrewsSep 1, 2025
      If your LEGRAND Power Supply displays a BCB OPEN alarm, it indicates that the battery isolator is open. Check the status of the battery isolator and the functionality of the auxiliary contact of the isolator. Also, check the connection between the auxiliary contact of the isolator and the auxiliary terminals of the UPS (if provided). If the alarm persists, contact our Technical Support Service.

Summary

1 SCOPE

Storing Documentation

Manual storage and accessibility instructions for technical documentation.

Further Information

Contacting the manufacturer for more details if the manual is insufficient.

2 Safety Rules and Warnings

Electric Shock Hazard

Safety instructions and precautions for electrical hazards.

Device Failure Hazard

Potential hazardous situations arising from UPS failure.

Potential Device Damage

Precautions to avoid electrostatic discharge during operations.

3 General UPS Description

3.1 UPS Typology

Description of the UPS's on-line, double conversion typology.

3.2 System Description

Overview of the UPS system components.

3.2.2 Inverter

3.2.3 Battery and Charger

3.2.4 Static Bypass

3.2.5 Manual Bypass

3.3 Operating Status

3.3.1 Normal Operation

UPS operates with all breakers closed except maintenance bypass.

3.3.2 Green Conversion

Battery disconnected; rectifier at reduced voltage.

3.3.3 Bypass Operation

3.3.4 Battery Operation

3.3.5 Manual Bypass

3.4 Control and Operation Devices

3.4.1 Isolators

Isolate power components from AC supply, battery, or load.

3.4.2 Emergency Power Off (EPO)

3.4.3 Normal;Bypass Selector

3.4.4 LCD Control Panel

4 Front Panel

4.1 Function Buttons

4.2 Mimic Panel LEDs

4.3 LEDs Bar

5 Handling the LCD Panel

5.1 Main Menus

Overview of the main LCD panel menus.

5.2 Measure Display

5.3 Basic Diagnostics

5.3.1 Display of Alarms History

How to view recorded alarms and their details.

5.3.2 Alarms and Operating Status

Alarm and Status Display Mode

How alarms are displayed and recorded in the system.

Alarms and Statuses Description

Reference to another section for detailed alarm and status descriptions.

6 Settings and Advanced Operations

Password-Protected Access

6.1 Setting Date and Time

6.2 Display Language Setting

6.3 New Battery Installation

6.4 Battery Configuration

6.5 Setting Modbus Parameters

6.6 UPS Test

6.7 Battery Test

6.8 System Reset

6.9 Alarms History Reset

Data Loss Warning

Warning about saving data before deleting alarms history.

7 System Information

7.1 Parallel Operation Information

7.1.1 UPS Position

Identifies UPS position in a parallel system.

7.1.2 Master;Slave Priority

Sets the Master/Slave role in parallel operation.

7.1.3 Communication Bus Monitoring

7.1.4 Parallel Type

7.1.5 Message Statistics

7.2 Service Information

8 Faults and Alarms

8.1 Operating Status Definition

8.2 Troubleshooting

LEGRAND UPS Specifications

General IconGeneral
BrandLEGRAND
ModelUPS
CategoryPower Supply
LanguageEnglish

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