Troubleshooting - Huawei PDU8000 User Manual

PDU8000 Modular Precision Power Distribution Cabinet
User Manual (1100 mm Deep)
Figure 8-1 Common polarity terminal and common terminal of the transformer
(1) Common polarity terminal

8.4 Troubleshooting

Symptom
The LCD fails to
display branch
currents.
The LCD fails to
display the circuit
breaker status.
The LCD is black
or blinks.
Issue 01 (2019-02-25)
Possible Cause
 The monitoring board communications
cable or the secondary cable to the
corresponding branch current
transformer is not properly connected.

The current detection module 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.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance Guide
(2) Common terminal
Solution
1. Replace the
monitoring board by
referring to
Replacing the
Monitoring
2. Contact Huawei
technical support.
1. Replace the
monitoring board by
referring to
Replacing the
Monitoring
2. Contact Huawei
technical support.
 Secure the input N
wire.

Replace the LCD by
referring to
Replacing an
8.5.5
Board.
8.5.5
Board.
8.5.6
MDU.
132