Huawei SUN2000-175KTL-H0 User Manual page 84

SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1)
User Manual
Alarm Alarm
ID Name
2061 Abnorma
l
Groundin
g
2062 Low
Insulatio
n
Resistanc
e
2063 Cabinet
Overtem
perature
2064 Device
Fault
2065 Upgrade
Failed or
Software
Version
Unmatch
2066 License
Expired
Issue 02 (2019-06-05)
Alarm Cause
Severit
y
1. The PE cable of the inverter is not
Major
connected.
2. The inverter output side does not
connect to an isolation transformer
when the PV string output is
grounded.
1. The PV string is short-circuited to
Major
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. The inverter is installed in a place
Major
with poor ventilation.
2. The ambient temperature is too
high.
3. The inverter is not working
properly.
Major An unrecoverable fault has occurred
on a circuit inside the inverter.
Minor The upgrade does not complete
normally.
1. The privilege license has entered
Warning
the grace period.
2. The privilege feature will be invalid
soon.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
Troubleshooting Suggestions
1. Check that the PE cable of the
inverter is connected properly.
2. If the PV string output is
grounded, check that the
inverter output side connects to
an isolation transformer.
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
default value in a cloudy or
rainy environment, reset
Insulation resistance
protection.
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.
Turn off the AC output switch and
DC input switch, and then turn
them on after 15 minutes. If the
fault persists, contact your dealer
or Huawei technical support.
1. Perform an upgrade again.
2. If the upgrade fails several
times, contact your dealer.
1. Apply for a new license.
2. Load a new license.
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