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SUN2000-45KTL-US-HV-D0
User Manual
Alarm
Alarm ID
Name
Abnormal
202
Invert
Circuit
Issue 04 (2018-06-01)
Alarm
Possible Cause
Severity
shielded from sunlight.
Cause ID = 10
The three phases of the
power grid are seriously
unbalanced, which triggers
the protection for the
internal control circuit of
the inverter.
Cause ID = 11
The power grid voltage
changes sharply and the
inverter input power fails to
discharge in a short time,
which increases the internal
voltage and triggers
overvoltage protection.
Cause ID = 12/15
An unrecoverable fault
occurs on a circuit inside
the inverter.
Abnormal external conditions
Major
trigger the protection for the
inverter circuit inside the
inverter. The possible causes
are as follows:
Cause ID = 13
The power grid voltage
drops dramatically or the
power grid is
short-circuited, which
damages the internal
voltage detection circuit in
the inverter.
Cause ID = 14
The power grid voltage
drops dramatically or the
power grid is
short-circuited. As a result,
the inverter transient output
current exceeds the upper
threshold and therefore the
inverter protection is
triggered.
Cause ID = 16
The DC current in the
power grid exceeds the
upper threshold.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
9 System Maintenance
Suggestion
switch after 5 minutes. If the fault
persists, contact Huawei technical
support.
Cause ID = 13/14/16
1. The inverter detects its external
working conditions in real time.
After the fault is rectified, the
inverter automatically recovers.
2. If the fault persists, contact
Huawei technical support.
Cause ID = 20
1. Check the inverter output cable
for short-circuits.
2. If the fault persists, contact
Huawei technical support.
109
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