Huawei PDU8000 - 8.3 Troubleshooting; 8.4 Parts Replacement

8.3 Troubleshooting
Symptom Possible Cause Solution
The LCD fails to
display branch
currents.
● 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.
1. Replace the
monitoring board.
2. Contact Huawei
technical support.
The LCD fails to
display the
circuit breaker
status.
● 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.
1. Replace the
monitoring board.
2. Contact Huawei
technical support.
The LCD is
black or blinks.
● The input CAN cable is
disconnected.
● The LCD is faulty.
● Secure the input
CAN cable.
● Replace the MDU.
The indicators
of the
monitoring
board do not
light up.
● Cables are not properly connected.
● The monitoring board is faulty.
1. Replace the
monitoring board.
2. Contact Huawei
technical support.
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
D ANGER
Do not replace an SPD module during a thunderstorm.
PDU8000 Modular Precision PDC V2.0
User Manual 8 Maintenance Guide
Issue 04 (2021-04-13) Copyright © Huawei Technologies Co., Ltd. 121