Huawei SUN2000-3KTL-M1 - Page 97

ID Name Severity Cause Solution
2061 Abnorma
l
groundin
g
Major Cause ID = 1
● The neutral wire or PE
cable of the inverter is
not connected.
● The output mode set for
the inverter is
inconsistent with the
cable connection mode.
Power o the inverter (turn o
the AC output switch and DC
input switch, and wait for a
period of time. For details about
the wait time, see the
description on the device safety
warning label), and then
perform the following
operations:
1. Check whether the PE cable
for the inverter is connected
properly.
2. If the inverter is connected to
a TN power grid, check
whether the neutral wire is
properly connected and
whether the voltage of the
neutral wire to ground is
normal.
3. After the inverter is powered
on, check whether the output
mode set for the inverter is
consistent with the output
cable connection mode.
2062
Low
insulation
resistance
Major Cause ID = 1
● A short circuit exists
between the PV array
and the ground.
● The PV array is in a
moist environment and
the circuit is not well
insulated to the ground.
1. Check the impedance
between the PV array output
and the ground. If a short
circuit occurs or the
insulation is insucient,
rectify the fault.
2. Check whether the PE cable
of the SUN2000 is correctly
connected.
3. If you have
conrmed that
the impedance is lower than
the
specied protection
threshold in a cloudy or rainy
environment, log in to the
app, SmartLogger, or NMS
and set the Insulation
resistance protection
threshold.
SUN2000-(3KTL-10KTL)-M1
User Manual 8 Maintenance
Issue 02 (2020-11-20) Copyright © Huawei Technologies Co., Ltd. 90