Huawei SUN2000-200KTL-H2 - Page 108

Alarm
ID
Alarm Name Alarm
Severity
Cause Troubleshooting Suggestions
2051 Abnormal
Residual
Current
Major Cause ID=1
The insulation impedance
of the input side to PE
decreases when the
inverter is operating.
1. If the alarm occurs
occasionally, the external
circuit may be abnormal
temporarily. The inverter
automatically recovers after
the fault is
rectied.
2. If the alarm occurs
frequently or persists, check
whether the impedance
between the PV string and
the ground is too low.
2062 Low Insulation
Resistance
Major Cause ID=1
1. The PV string is short-
circuited to the PE
cable.
2. The PV string has been
in a moist environment
for a long time and the
circuit is not well
insulated to ground.
1. Check the impedance of the
PV string to PE. If a short
circuit occurs, rectify it.
2. Check that the ground
cable of the inverter is
correctly connected.
3. If you are sure that the
impedance is less than the
preset value in a cloudy or
rainy environment, reset
Insulation resistance
protection.
2063 Cabinet
Overtemperatu
re
Minor Cause ID=1
1. The inverter is installed
in a place with poor
ventilation.
2. The ambient
temperature is too
high.
3. The inverter is not
working properly.
1. Check the ventilation and
whether the ambient
temperature of the inverter
exceeds the upper limit. If
the ventilation is poor or
the ambient temperature is
too high, improve
ventilation.
2. If both the ventilation and
ambient temperature meet
requirements yet the fault
persists, contact your dealer
or Huawei technical
support.
2064 Device Fault Major Cause ID=1-5, 6-12
An unrecoverable fault
has occurred on a circuit
inside the inverter.
Turn o the AC output switch
and DC input switch, and then
turn them on after 5 minutes.
If the fault persists, contact
your dealer or Huawei
technical support.
SUN2000-(196KTL-H0, 200KTL-H2, 215KTL-H0)
Series
User Manual 8 Maintenance
Issue 08 (2021-09-30) Copyright © Huawei Technologies Co., Ltd. 100