Troubleshooting - Huawei PDU8000 Series User Manual

PDU8000 Modular Precision PDC V2.0
User Manual
Figure 8-1 Common polarity terminal and common terminal of the transformer
(1) Common polarity terminal

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.
Issue 03 (2018-01-25)
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.
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8 Maintenance Guide
(2) Common terminal
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.
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