B Troubleshooting - Huawei PDU8000 Series Quick Manual

B
Troubleshooting
No. Symptom
The LCD fails to
display branch
1
currents.
The LCD fails to
display the circuit
2
breaker status.
The LCD is black
3
or blinks.
The indicators of
the monitoring
4
board module do
not light up.
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.
•
Cables are not properly connected.
•
The power distribution monitoring board
is faulty.
18
Solution
1. Replace the
monitoring board
module.
2. Contact Huawei
technical support.
1. Replace the
monitoring board
module.
2. Contact Huawei
technical support.
•
Secure the input N
wire.
•
Replace the LCD.
1. Replace the
monitoring board
module.
2. Contact Huawei
technical support.