Troubleshooting - Huawei PDU8000 Quick Manual

Maintenance
No.
Item
Surge
2
protection
module
PD510 LCD
3
screen
Viewing
4
alarms
5
PDC interior
The power-off operation may interrupt all services. Before the power-off operation, ensure that
emergency plans have been worked out and approved by parties involved. Huawei bears no
responsibility for any accidents or loss.

Troubleshooting

No. Symptom
The insulation
resistances of the
power distribution
1
devices and feed
circuit are less than
0.5 megohm.
Frequency Operation
Check the
status of the
surge
Monthly protection
module
indicator and
MCB.
Press any
button on the
Monthly PD510 and
observe the
LCD screen.
Check
whether an
Monthly alarm is
generated for
the ATS.
Check whether
dust has
Twice a accumulated
year on the PDC
mounting
panels.
Possible Cause
A short-circuit has
•
occurred.
Expected Result Troubleshooting
The SPD
indicator is
steady green,
and the MCB is
switched on.
The LCD screen
displays
information
properly.
The two power
supplies of the
ATS work
properly.
The white paper
that you use to
wipe the mount
panel is clean.
Solution
1. Check whether any two of L1, L2, L3, N, and
PE cables are short-circuited using a
multimeter.
• If a short-circuit is found, check the tools,
screws, metal parts, and circuits one by one
to locate and rectify the short-circuit.
If no short-circuit is found, go to step 2
•
22
• If the surge protection
module indicator is
steady red, replace the
surge protection module.
If the MCB is OFF,
•
switch it on.
Check whether the power
cable is properly connected,
and replace the LCD screen
if necessary.
Locate the fault by
referring to ATS Alarm
Reference.
If the white paper becomes
dirty, clean the PDC interior.