Huawei Smart String ESS LUNA2000-200KWH-2H1 - Page 140

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
6 Alarm Reference
Issue Draft (2022-10-30)
Copyright © Huawei Technologies Co., Ltd.
133
Alarm
ID
Alarm
Name
Severity
Possible Cause
Suggestion
the switch on the bus side, and issue a
startup command.
6. If the alarm persists, contact your
dealer or technical support.
3018
Battery
Side
Reverse
Polarity on
Rack
Controller
Major
Cause ID = 1–3
Battery cables are
connected in reverse
polarity.
1. Locate the input and output circuit
breakers associated with [ESC-No].
2. Issue a shutdown command, turn off
the switch on the battery side and then
the switch on the bus side, and wait
for 5 minutes.
3. Check whether the copper bars and
cables on the battery side of the power
control module are connected in
reverse polarity by referring to the
product maintenance manual.
4. After checking that the battery power
cable is correctly connected, turn on
the switch on the battery side and then
the switch on the bus side, and issue a
startup command.
5. If the alarm persists, contact your
dealer or technical support.
3019
Bus Side
Overvoltag
e on Rack
Controller
Major
Cause ID = 1–3
The bus cable is not
correctly connected, or
the bus voltage exceeds
the maximum operating
voltage of the power
module.
1. Locate the input and output circuit
breakers associated with [ESC-No].
2. Issue a shutdown command, turn off
the switch on the battery side and then
the switch on the bus side, and wait
for 5 minutes.
3. Check the cable connections on the
bus side of the power control module
by referring to the maintenance
manual of the product.
4. After checking that the battery power
cable is correctly connected, turn on
the switch on the battery side and then
the switch on the bus side, and issue a
startup command.
5. If the alarm persists, contact your
dealer or technical support.
3020
Bus Side
Reverse
Polarity on
Rack
Controller
Major
Cause ID = 1–3
The bus is connected in
reverse polarity.
1. Locate the input and output circuit
breakers associated with [ESC-No].
2. Issue a shutdown command, turn off
the switch on the battery side and then
the switch on the bus side, and wait
for 5 minutes.
3. Check whether the cable between the
copper bar on the bus side of the
power control module and the DC LV
Panel is connected in reverse polarity