Huawei R100020G1 - Page 41

Table 6-2 Troubleshooting based on charging module indicators
Indicator Status Description Troubleshooting
Alarm
indicator
(yellow)
Steady
on
Ambient
overtemperature
protection
1. Check whether the ambient
temperature of the charging
module is too high or too low
and whether the air intake
vent is blocked. If yes, rectify
the fault.
2. Check whether the input
voltage of the charging
module is normal and
whether the input cables and
input circuit breakers are
properly connected. If not,
rectify the fault.
3. Check whether the preset
output voltages of
dierent
charging modules are the
same and whether the output
cables and output circuit
breakers are properly
connected. If not, rectify the
fault.
4. Check whether the charging
module hardware address is
duplicate. If yes, rectify the
fault.
5. Check whether the charging
module is properly connected.
If not, rectify the fault.
6. Check whether the fan of the
charging module is stuck by
foreign objects. If yes, rectify
the fault.
7. Exchange the slot of the
faulty module with that of a
normal module. If the fault
occurs only in the original
slot, the slot is abnormal and
needs to be handled.
8. Exchange the slot of the
faulty module with that of a
normal module. If the fault
occurs again after the slot
exchange, replace the faulty
module or contact the
technical support.
Ambient
undertemperature
protection
Internal overheating
Fan fault
AC input overvoltage,
undervoltage, phase
failure, or severe
voltage imbalance
Slight or severe current
imbalance
Incorrect or duplicate
module hardware
address
Output capacitance
imbalance
Output relay alarm
Poor output connection
Air lter blockage
alarm
R100020G1 Charging Module
User Manual 6 Maintenance
Issue 05 (2021-11-16) Copyright © Huawei Digital Power Technologies Co., Ltd. 35