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

PDU8000 Modular Precision PDC V2.0
User Manual

8.3 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.

8.4 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.

8.4.1 Replacing an SPD Module

Prerequisites
Do not replace an SPD module during a thunderstorm.
Issue 04 (2021-04-13)
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 CAN cable is
disconnected.
● The LCD is faulty.
● Cables are not properly connected.
● The monitoring board is faulty.
D ANGER
Copyright © Huawei Technologies Co., Ltd.
8 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
CAN cable.
● Replace the MDU.
1. Replace the
monitoring board.
2. Contact Huawei
technical support.
121