Huawei SUN2000-8K-LC0 Series - Page 104

Alarm ID Alarm
Name
Alarm
Severity
Possible Causes Troubleshooting
2062 Low
Insulatio
n
Resistanc
e
Major Cause ID = 1
● A short circuit occurs
between the PV array
and the ground.
● The ambient air of the
PV array is damp and
the insulation between
the PV array and the
ground is poor.
1. Set Insulation resistance
protection to the minimum
value and restart the inverter.
2. Check that the PE cable of
the device is correctly
connected.
3. Check the output impedance
of the PV array to ground. If
there is a short circuit or lack
of insulation, rectify it.
Current insulation resistance:
x MΩ, possible short circuit
position: x%. The short circuit
position is valid for a single
PV string. If there are
multiple PV strings, check the
PV strings one by one. For
details, see 8.6 Locating
Insulation Resistance Faults.
2063 Overtem
perature
Minor Cause ID = 1
● The device is installed in
a place with poor
ventilation.
● The ambient
temperature is higher
than the upper
threshold.
● The device is not
working properly.
● Check the ventilation and
ambient temperature of the
device installation position.
● If the ventilation is poor or
the ambient temperature
exceeds the upper threshold,
improve the ventilation and
heat dissipation.
● If the ventilation and ambient
temperature both meet
requirements, contact your
dealer or technical support.
SUN2000-(8K, 10K)-LC0 Series
User Manual 8 System Maintenance
Issue 01 (2023-09-15) Copyright © Huawei Digital Power Technologies Co., Ltd. 97