Huawei SUN2000-111KTL-NHM0 User Manual page 123

SUN2000-111KTL-NHM0
User Manual
Alarm Alarm
ID Name
2061 Abnormal
Grounding
2062 Low
Insulation
Resistance
Issue 09 (2023-12-18)
Alarm Possible Causes
Severity
Major Cause ID = 1
The neutral wire or PE wire is not
connected when Output mode of
the solar inverter is set to Three-
phase four-wire.
Major Cause ID = 1
1. The PV string is short-circuited
to PE.
2. The PV string has been in a
moist environment for a long
time and the circuit is not well
insulated to ground.
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8 Maintenance
Suggestions
1. Check that the neutral
wire and PE wire of
the solar inverter are
properly connected.
2. Check whether the
voltage between the
neutral wire and the
ground exceeds 30 V. If
yes, set Output mode
to Three-phase three-
wire on the mobile
app, SmartLogger, or
NMS after obtaining
the consent of the
local power operator.
1. Check the impedance
of the PV string to PE.
If a short circuit occurs
or the insulation is
insufficient, rectify it.
2. Check that the PE
cable of the solar
inverter is correctly
connected.
3. If you are sure that the
impedance is less than
the default value in a
cloudy or rainy
environment, reset
Insulation resistance
protection.
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