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SUN600-(5KTL, 6KTL)-L0
User Manual
Alarm
Alarm Name
ID
2051
Abnormal
Residual
Current
Issue 02 (2022-03-10)
Alarm
Possible Causes
Severity
Major
Cause ID = 1
The insulation impedance
of the input side to PE
decreases when the
inverter is operating.
Copyright © Huawei Technologies Co., Ltd.
8 System Maintenance
Troubleshooting
1. If the alarm occurs
occasionally, the
external circuit may be
abnormal temporarily.
The inverter
automatically recovers
after the fault is
rectified.
2. If the alarm occurs
frequently or persists,
check whether the
impedance between the
PV string and the
ground is too low.
74
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