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LEGRAND MIDDLE ATLANTIC NEXSYS - User Manual

LEGRAND MIDDLE ATLANTIC NEXSYS
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NEXSYSTM
Line Interactive UPS
User Manual
100-00072 Rev A
22
PAP

Table of Contents

Questions and Answers

  • T
    tammykruegerAug 2, 2025
    What to do if my LEGRAND UPS says overloaded?
    • R
      Richard SmithAug 3, 2025
      If the LCD on your LEGRAND UPS indicates “UPS is overloaded” or has already shut down, it's likely due to an overload. In Normal or Battery mode, shutdown times vary based on overload percentages: a 110% overload triggers an alarm for 20 seconds before shutdown, a 125% overload triggers an alarm for 10 seconds before shutdown, and a 150% overload causes an immediate shutdown. To resolve this, reduce the load, and then press the power button to re-establish power to the UPS outlets.
  • L
    Laura EscobarAug 7, 2025
    Why are my LEGRAND UPS outlets not providing power?
    • B
      Brian BrownAug 7, 2025
      If your LEGRAND UPS outlets aren't providing power, there are several potential causes: * The AC input power cord may not be properly connected. Ensure your input power cord is securely connected to the connector on the back of your UPS and plugged into an appropriately rated receptacle. * The UPS battery power may be discharged. Recharge your UPS battery for at least eight hours. * Manual, Automatic, or Scheduled Load Shedding might be enabled. Check the outlet state setting on the LCD menu.
  • M
    Michael TurnerAug 11, 2025
    What to do if my LEGRAND MIDDLE ATLANTIC NEXSYS UPS has shut down?
    • B
      Brian NelsonAug 11, 2025
      If your LEGRAND UPS has shut down, it could be due to a couple of reasons. If a “UPS overloaded” warning message appeared, the UPS was overloaded above 105% for more than 30 seconds. Alternatively, if a “High Internal Temperature” warning message appeared, the UPS was above 176° F (80° C) for more than 5 seconds. If it was overloaded, reduce the load, and then press the power button to re-establish power to the UPS outlets. If it overheated, press the power button to start the UPS.
  • J
    jclineAug 15, 2025
    Why doesn't my LEGRAND UPS operate for the expected runtime?
    • J
      Jonathan RogersAug 15, 2025
      If your LEGRAND UPS isn't operating for the expected runtime, it could be because the UPS battery is not fully charged. Recharge your UPS battery for at least eight hours. If problems persist after a full charge, the battery may need replacement.
  • P
    prattbrettAug 19, 2025
    What does a High Input Current warning message mean on my LEGRAND UPS?
    • G
      Geoffrey RushAug 19, 2025
      If your LEGRAND UPS displays a High Input Current warning message, it's likely that with a low input voltage, the UPS compensates and produces higher current to maintain the power demand. Access your UPS activity logs and look for any consistent low voltage reading trends, which may indicate a possible site issue. Reduce the load to resolve any high current production stress to the UPS.
  • J
    Jennifer HarrisonAug 25, 2025
    Why doesn't my LEGRAND UPS calculate the expected runtime for the expandable battery?
    • B
      Brandon LittleAug 25, 2025
      If the LEGRAND UPS does not calculate the expected runtime for its connected expandable battery option, it might be because the UPS is not configured to automatically detect the expandable battery. Check that the external battery setting is configured to Auto. Another cause might be that the main connector cord and communication cable are not properly connected between the UPS and the expandable battery. Properly connect the main connector cord and the communication cable between the UPS and the expandable battery.
  • C
    Crystal HammondAug 28, 2025
    Why is the RackLink™ Network Card not recognized when my LEGRAND UPS is off?
    • A
      Anthony RoseAug 28, 2025
      When the LEGRAND UPS is turned Off, and the RackLink™ Network Card is not recognized, the UPS sleep mode (disabled by default) might be enabled. When enabled, sleep mode deactivates the network card port when the UPS is Off, the batteries are fully charged, and the LCD panel is asleep. Disable the sleep mode function to keep your network card on regardless of your UPS power settings.

Summary

Important Safety Instructions

Understanding Safety Symbols

Explains safety symbols used in the manual.

Transportation and Storage Guidelines

Guidelines for safely transporting and storing the UPS unit.

Preparation and Installation Precautions

Important considerations before and during UPS installation.

Operation and Maintenance Safety

Safety procedures for operating and maintaining the UPS.

Battery Handling Safety

Detailed safety measures for handling and replacing UPS batteries.

Regulatory Compliance and Disposal

Information on FCC compliance, Industry Canada, and WEEE disposal directive.

Supplied Components and Required Tools

Supplied Components and Hardware

Identifies all components and hardware supplied with the UPS.

Required Tools

Lists the tools needed for installation and setup of the UPS.

Introduction to NEXSYS UPS

General Specifications Overview

Provides a summary of the UPS's general technical specifications.

Initial UPS Charging Procedure

Instructions on how to charge the UPS for the first time.

UPS Installation Site Requirements

Specifies environmental and location requirements for UPS installation.

Installing the UPS Inside Your Enclosure

Communicating with Your UPS

UPS Emergency Power Off (EPO) Function

Connecting Expandable Runtime Batteries

Basic Operation and Feature Set

Understanding Rear Panel Connections

Details the rear panel ports and their functions for various UPS models.

Front Panel Buttons and LED Indicators

Explains how to use the front panel buttons and interpret LED status lights.

UPS Status Modes and LCD Navigation

Describes UPS modes and how to navigate the LCD panel.

LCD Menu and Configuration Functions

Instructions for navigating the main LCD menu and accessing configuration.

Understanding Warning and Fault Log Messages

Warning Log Messages

Explains various warning messages that may appear on the UPS LCD.

Fault Log Messages

Explains various fault messages that may appear on the UPS LCD.

UPS Power Button Operation

Battery Replacement Procedure

Power Cord Replacement Guidelines

1 K;1.5 K and 2 K UPS Cord Specifications

Required specifications for power cords for different UPS models.

Troubleshooting Common Issues

Detailed Specifications

General, Input, and Output Specifications

Technical input, output, and general specifications of the UPS models.

Battery, ERB, and Environmental Specifications

Battery, ERB, environmental, and communication specifications.

Communication, Ports, and Physical Details

Details on ports, features, physical dimensions, and certifications.

Warranty Information

System Function Block Diagram

LEGRAND MIDDLE ATLANTIC NEXSYS Specifications

General IconGeneral
BrandLEGRAND
ModelMIDDLE ATLANTIC NEXSYS
CategoryUPS
LanguageEnglish

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