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PV+ESS+Charger Solution
User Manual
No.
Component
15
AC Charger
16
AC Charger
Issue 02 (2023-01-13)
Alarm Name
Alarm
Severity
Certificate
Major
Expired
Certificate
Major
Will Expire
Copyright © Huawei Technologies Co., Ltd.
Possible
Suggestion
Cause
The possible
Step 1 Check whether the
causes are as
system time is incorrectly set.
follows:
If yes, reset or synchronize the
1. The
system time. Wait for 1 hour
charger
and check whether the alarm is
system time
cleared. If the alarm persists, go
is incorrectly
to the next step.
set.
If no, go to the next step.
2. The
Step 2 Apply for a new
charging
certificate. If you cannot apply
controller
for a new certificate, contact
certificate
technical support.
has expired.
Step 3 Import the new
certificate and check whether
the alarm is cleared.
If yes, no further action is
required.
If no, replace the charger.
The possible
Step 1 Check whether the
causes are as
system time is incorrectly set.
follows:
If yes, reset or synchronize the
system time. Wait for 1 hour
1. The
and check whether the alarm is
difference
cleared. If the alarm persists, go
between the
to the next step.
charger
system time
If no, go to the next step.
and the
Step 2 Apply for a new
expiration
certificate. If you cannot apply
time of the
for a new certificate, contact
charging host
technical support.
certificate is
Step 3 Import the new
less than 90
certificate and check whether
days.
the alarm is cleared.
2. The system
If yes, no further action is
time is
required.
incorrectly
set.
If no, replace the charger.
5 Maintenance
69
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