SmartACU2000D Smart Array Controller
User Manual (with No PID Module)
7 System Maintenance
Issue 01 (2020-02-14)
Copyright © Huawei Technologies Co., Ltd.
72
7.2 Troubleshooting
Symptom
Cause
Troubleshooting
The three-phase input switch of the
SACU is not powered on.
1.
The power supply to the
upstream transformer station of
the three-phase input switch is
abnormal.
2.
The three-phase input switch is
faulty.
1.
Use a multimeter to check
whether the power supply to the
upstream transformer station of
the three-phase input switch is
normal.
2.
Replace the three-phase input
switch.
The single-phase input switch of
the SACU is not powered on.
1.
The power supply to the
upstream transformer station of
the single-phase input switch is
abnormal.
2.
The single-phase input switch is
faulty.
1.
Use a multimeter to check
whether the power supply to the
upstream transformer station of
the single-phase input switch is
normal.
2.
Replace the single-phase input
switch.
The PoE module is not powered
on.
The power cable of the PoE
module is loose or disconnected.
If the cable is loose or
disconnected, secure it.
The power adapter or 24 V DC
power module fails to supply
power.
1.
The input and output power
cables of the 24 V DC power
module are loose or
disconnected.
2.
The power adapter or 24 V DC
power module is faulty.
1.
If the cable is loose or
disconnected, secure it.
2.
Replace the power adapter or
24 V DC power module.
The SmartLogger in the SACU is
not powered on.
1.
The DC output power cable for
the power adapter does not
connect to the 12V IN port on
the SmartLogger.
2.
The power cable is not
connected to the AC power
receiving port on the power
adapter.
3.
The AC input power cable is
not connected to the AC socket.
4.
The power adapter is faulty.
5.
The SmartLogger is faulty.
1.
Check the power adapter and
connect the DC output power
cable for the power adapter to
the 12V IN port on the
SmartLogger.
2.
Check whether the power cable
is connected to the AC power
receiving port on the power
adapter.
3.
Check whether the power cable
is connected to the AC socket.
4.
Replace the power adapter.
5.
Contact the dealer or Huawei
technical support.