Cable - Huawei DPU40D-N06A3 User Manual

DPU40D-N06A3, DBU20B-N12A3, and
DBU50B-N12A1 Distributed Power System
User Manual
No.
2

5.1.4 Cable

Table 5-4 Cable maintenance
No.
1
2
3
4
Issue 04 (2020-02-29)
Item Possible Fault Cause
Blinking fast (4 Hz): The
communication is
interrupted.
Check the red Steady on: Board
indicator status Hardware Fault/Heater
(normal: off). Fault/Electrochemical cell
fault/Duplicate address.
Blinking at short intervals
(0.5 Hz): Discharge
Overcurrent
Protection/Charge
Overcurrent
Protection/Overtemperatur
e protection/Low
Temperature
Protection/Abnormal
shutdown/Charge
Overcurrent
Protection/Discharge
Overcurrent Protection.
Item
Check whether
signal cables and
power cables are
separately bound.
Check whether all
cables are bound
properly.
Check whether the
equipment ground
bar is securely
connected to the site
ground bar.
Check whether
ground cables are
rusty.
Copyright © Huawei Technologies Co., Ltd.
Suggestion
cable connection.
1. Check the communications
cable connection.
2. Check whether the PSU is
normal. Replace the PSU if
it is abnormal.
Replace the lithium battery.
Handle the alarm based on the
alarm type.
Possible Fault
Cause
Cables are not
properly installed.
Cables are not
properly installed.
Cables are not
properly installed.
Cables corrode after
being used for a
long time.
5 Maintenance
Suggestion
Install cables
properly, and bind
signal cables and
power cables
separately.
Bind cables
properly.
Connect the
equipment ground
bar to the site
ground bar.
Replace rusty
cables.
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