Huawei PV+ESS+Charger Solution User Manual page 71

PV+ESS+Charger Solution
User Manual
No. Component
5 Charging
Connector
6 Charging
Connector
Issue 02 (2023-01-13)
Alarm Name Alarm
Severity
Charging Major
Connector
Lock Faulty
Charging Major
Cable
Abnormal
Copyright © Huawei Technologies Co., Ltd.
Possible Suggestion
Cause
The possible Step 1 Check whether the
causes are as charging connector is
follows: completely inserted into the
charger port.
1. The
charging If yes, go to the next step.
connector is
If no, completely insert the
not properly
charging connector into the
inserted.
charger port. If the alarm is
2. The cleared, no further action is
charging required. If the alarm persists,
connector go to the next step.
lock control
Step 2 Use the app to deliver
is faulty.
the lock and unlock commands
twice, and check whether the
alarm is cleared.
If yes, no further action is
required.
If no, replace the charger.
The through- Step 1 Remove the charging
current cable. Use a multimeter to
capability of measure the PP-PE resistance
the charging and check whether the
cable is resistance is 100, 220, 680, or
abnormal. 1500 ohms (±3%).
If yes, replace the charger.
If no, replace the charging
cable. If the alarm persists,
replace the charger.
Figure 5-1 Measuring the
charging cable resistance at the
charger side
5 Maintenance
65