Troubleshooting; Parts Replacement; Replacing An Spd Module - Huawei PDU8000-0630ACV4-SCA108 User Manual

PDU8000 Precision PDC-T
User Manual

6.2 Troubleshooting

Symptom
The LCD fails to
display branch
currents.
The LCD fails to
display the circuit
breaker status.
The LCD is black
or blinks.
The indicators of
the monitoring
board do not light
up.

6.3 Parts Replacement

This document describes only the replacement method for certain components. If a faulty
component to be replaced is not covered in this document, contact Huawei technical support.

6.3.1 Replacing an SPD Module

Prerequisites
Do not replace an SPD module during a thunderstorm.


Issue 01 (2017-07-15)
Possible Cause
 The monitoring board communications
cable or the secondary cable to the
corresponding branch current
transformer is not properly connected.
 The current monitoring board or current
transformer is faulty.
 The communications cable of the
Boolean value collection module or the
corresponding branch Boolean value
signal cable is not properly connected.
 The Boolean value collection module or
auxiliary switch contact is faulty.

The input N wire is disconnected.

The LCD is faulty.

Cables are not properly connected.

The monitoring board is faulty.
Tools: electrical tester pen, key to the PDC cabinet door, Phillips screwdriver, flat-head
screwdriver
Materials: new SPD module
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Copyright © Huawei Technologies Co., Ltd.
6 Maintenance Guide
Solution
1. Replace the
monitoring board.
2. Contact Huawei
technical support.
1. Replace the
monitoring board.
2. Contact Huawei
technical support.
 Secure the input N
wire.
 Replace the MDU.
1. Replace the
monitoring board.
2. Contact Huawei
technical support.
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