Huawei SUN2000-250KTL Series - Page 103

Alar
m ID
Alarm
Name
Alarm
Severity
Possible Cause Suggestion
2102 Protecti
on upon
Commu
nication
Failure
Warning Cause ID = 1
When the communication
disconnection duration
exceeds the specied
threshold, the device starts
the protection function.
1. If the fault occurs occasionally, the
device recovers to the normal
state after receiving a scheduling
command. No manual
intervention is required.
2. Manually deliver a power
scheduling command.
3. If the Protection upon
Communication Failure function
is not required, disable it.
2103 AC
Terminal
Tempera
ture
Abnorm
al
Major Cause ID = 1
1. The AC power cable is
not of the recommended
specications or is oxidized.
2. The OT/DT terminal of
the AC power cable is not
crimped as required.
3. The fastening torque of
the AC terminal does not
meet the requirement.
Power o the devices connected to
the same DC bus (issue a shutdown
command, turn o the AC and DC
switches, and wait for the period
specied on the device safety
warning label), and then perform the
following steps:
1. Check whether the cables meet the
requirements.
2. Check whether the OT/DT
terminals are crimped as required.
3. Check that the fastening torque of
wiring terminals meets the
requirement.
4. Turn on the AC switch and DC
switch, and restart the inverter.
If the fault persists, contact the
vendor or technical support.
SUN2000-(250KTL, 280KTL, 300KTL, 330KTL) Series
User Manual 9 Alarm Reference
Issue 07 (2023-06-30) Copyright © Huawei Technologies Co., Ltd. 96