Mitsubishi Electric 9900D Series User Manual

UNINTERRUPTIBLE POWER SUPPLY SYSTEM
MODEL
9900D SERIES
OWNER’S / TECHNICAL MANUAL
(Inclusive Parallel Operation System Application)
UNINTERRUPTED Peace of Mind
®

Mitsubishi Electric 9900D Series Specifications

General

Series	9900D
Input Frequency	50/60Hz
Operating Temperature	0°C to 40°C
Protection Features	Overvoltage, Overcurrent, Short Circuit
Category	Uninterruptible Power Supply (UPS)

Summary

Introduction to the 9900D Series UPS

Safety Precautions for UPS Operation

Essential safety practices to follow during installation, wiring, and disposal of the UPS.

9900D Series UPS Specifications

Operator Controls and Indicators

Liquid Crystal Display (LCD) Panel Guide

UPS Menu Navigation and Operation

Installation and Storage Procedures

UPS Storage and Handling Guidelines

Provides instructions for proper storage and handling of UPS cabinets.

UPS Installation Procedure Steps

Details foundation requirements, alignment, and cabinet anchoring for installation.

UPS Cable Connection Procedures

Guides on connecting power and control wires for UPS installation.

Operating Procedures for the UPS System

UPS System Start-Up Procedure

Step-by-step guide for starting the UPS system, including external checks.

UPS System Shutdown Procedure

Procedure for safely stopping the UPS system and its operations.

UPS Bypass Operation Procedure

Multi Module System (MMS) Start-up

Responding to UPS Failures

Contacting Service Center for UPS Issues

Information on contacting Mitsubishi Electric service for assistance.

UPS Parts Replacement

Battery Replacement Guidelines

UPS Component Part Lifespan and Replacement

UPS Fault Codes and Troubleshooting

Verifying and Recording UPS Fault Alarms

Resetting Tripped Circuit Breakers (MCCBs)

Bypass Module Fault Code List

List of fault codes, status messages, meanings, and guidance for the Bypass Module.

UPS Module Fault Code List

List of fault codes, status messages, meanings, and relay contact for UPS Modules.