Huawei PV+ESS+Charger Solution User Manual page 73

PV+ESS+Charger Solution
User Manual
No. Component
11 AC Charger
12 AC Charger
Issue 02 (2023-01-13)
Alarm Name Alarm
Severity
Input Minor
Undervoltage
Input Minor
Overvoltage
Copyright © Huawei Technologies Co., Ltd.
Possible Suggestion
Cause
The mains or Step 1 Check whether the input
inverter voltage is abnormal.
power supply
If yes, rectify the mains input
is unstable.
circuit and ensure that the
voltage is normal. If the alarm
persists, go to the next step.
If no, go to the next step.
Step 2 Restart the charger, wait
for 1 minute, and check
whether the alarm is cleared.
If yes, no further action is
required.
If no, replace the charger.
The mains or Step 1 Check whether the input
inverter voltage is abnormal.
power supply
If yes, rectify the mains input
is unstable.
circuit and ensure that the
voltage is normal. If the alarm
persists, go to the next step.
If no, go to the next step.
Step 2 Restart the charger, wait
for 1 minute, and check
whether the alarm is cleared.
If yes, no further action is
required.
If no, replace the charger.
5 Maintenance
67