Alarm
ID
Alarm Name Alarm
Severity
Possible Causes Troubleshooting
2069 Battery Reverse
Connection
Major Cause ID = 1
Reverse positive and
negative poles when the
battery is connected to the
SUN2000.
1. Turn o 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
to the
SUN2000L
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.
2070
Active Islanding Major Cause ID = 1
When the power grid
experiences an AC power
outage, the SUN2000
detects islanding
proactively.
Check that the grid
connection voltage of the
SUN2000 is normal.
2071 Passive
Islanding
Major Cause ID = 1
When the power grid
experiences an AC power
outage, the SUN2000
detects an island grid
passively.
Check whether the voltage
at the grid connection point
of the SUN2000 is normal.
SUN2000-4.95KTL-JPL1
User Manual 8 Maintenance
Issue 05 (2023-02-17) Copyright © Huawei Technologies Co., Ltd. 86