Huawei SUN2000-4.95KTL-JPL1 User Manual page 92

SUN2000-4.95KTL-JPL1
User Manual
Alarm Alarm Name
ID
2069 Battery Reverse
Connection
2070 Active Islanding
2071 Passive
Islanding
Issue 05 (2023-02-17)
Alarm Possible Causes
Severity
Major Cause ID = 1
Reverse positive and
negative poles when the
battery is connected to the
SUN2000.
Major Cause ID = 1
When the power grid
experiences an AC power
outage, the SUN2000
detects islanding
proactively.
Major Cause ID = 1
When the power grid
experiences an AC power
outage, the SUN2000
detects an island grid
passively.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
Troubleshooting
1. Turn off the AC output
switch, DC input switch,
and battery switch, and
turn on the battery
auxiliary power switch.
Wait for 5 minutes.
2. Check the cable
connection by referring
SUN2000L
to the
Battery and Smart Meter
Quick Installation Guide .
3. After ensuring that the
battery power cable is
correctly connected, turn
on the battery auxiliary
power switch, battery
switch, AC output
switch, and DC input
switch in sequence. If
the alarm persists,
contact the battery
manufacturer.
Check that the grid
connection voltage of the
SUN2000 is normal.
Check whether the voltage
at the grid connection point
of the SUN2000 is normal.
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