Huawei LUNA2000-200KWH-2H1 User Manual page 180

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
Alar Alarm
m ID Name
3018 Battery
Side
Reverse
Polarity
on Rack
Controller
3019 Bus Side
Overvolta
ge on
Rack
Controller
Issue 03 (2023-03-30)
Severit Possible Cause
y
Major Cause ID = 1–3
The battery cable is
reversely connected.
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.
Copyright © Huawei Digital Power Technologies Co., Ltd.
Suggestion
1. Determine the positions of the input
and output circuit breakers associated
with [ESC-No] and the AC input
power switch of the PSU.
2. Issue a hibernation command to all
ESRs, and turn off the switch on the
battery side, the switch on the bus
side, and the AC input power switch
of the PSU. Then wait for 5 minutes.
3. Check whether any battery pack
positive/negative terminal or BAT
terminal of any rack controller is
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 AC input power switch of the
PSU, the switch on the battery side,
and the switch on the bus side in
sequence, and issue a running
command.
5. If the alarm persists, contact the
vendor or technical support.
1. Determine the positions of the input
and output circuit breakers associated
with [ESC-No] and the AC input
power switch of the PSU.
2. Issue a hibernation command to all
ESRs, and turn off the switch on the
battery side, the switch on the bus
side, and the AC input power switch
of the PSU. Then wait for 5 minutes.
3. Check whether the bus side cable
connections of the rack controller are
correct by referring to the product
maintenance manual.
4. After checking that the battery power
cable is correctly connected, turn on
the AC input power switch of the
PSU, the switch on the battery side,
and the switch on the bus side in
sequence, and issue a running
command.
5. If the alarm persists, contact the
vendor or technical support.
13 Alarm Reference
171