Huawei SUN2000-50KTL-JPM0 User Manual page 103

SUN2000-(50KTL-JPM0, 50KTL-JPM1, 63KTL-JPM0)
User Manual
Alarm Alarm Alarm
ID Name Severity
2062 Low Major
Insulatio
n
Resistan
ce
2063 Cabinet Major
Overtem
perature
2064 Device Major
Fault
2065 Upgrade Minor
Failed
2066 License Warning
Expired
61440 Faulty Minor
Monitor
ing Unit
Issue 01 (2018-09-30)
Cause
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
power cable is not well insulated to
ground.
1. The SUN2000 is installed in a place
with poor ventilation.
2. The ambient temperature exceeds
the upper threshold.
3. The SUN2000 is not working
properly.
An unrecoverable fault occurs on a
circuit inside the SUN2000.
The upgrade ends abnormally.
1. The privilege certificate has entered
the grace period.
2. The privilege feature will be invalid
soon.
1. The flash memory is insufficient.
2. The flash memory has bad sectors.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
Measures
1. Check the impedance between
the PV string and the PE cable.
If a short circuit occurs, rectify
the fault.
2. Check that the PE cable for the
SUN2000 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
ambient temperature at the
SUN2000 installation position.
If the ventilation is poor or the
ambient temperature exceeds
the upper threshold, improve
the ventilation and heat
dissipation.
2. If the ventilation and ambient
temperature both meet
requirements, contact 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 Huawei
technical support.
1. Perform an upgrade again.
2. If the upgrade fails several
times, contact your dealer.
1. Apply for a new certificate.
2. Load the new certificate.
Turn off the AC output switch and
DC input switch, and then turn
them on after 15 minutes. If the
fault persists, replace the
monitoring board or contact
Huawei technical support.
97