Huawei PowerCube 5000 - Diesel Generator Alarms

PowerCube 5000
User Manual (SmartLi 100Ah)
A Alarm List
Issue 02 (2020-03-17)
Copyright © Huawei Technologies Co., Ltd.
158
Device
Name
Alarm Name
Alarm
Severit
y
Fault Cause
Troubleshooting
Power Supply
controller has a low
voltage of ±15 V.
2. Replace the ECM.
3. If the fault persists, replace the
parallel board.
Power Cabinet
Address
Conflict
Critical
A rack address conflict
occurs.
Check the rack address setting.
Parallel Cable
Alarm Between
Power Cabinets
Minor
An intra-rack
industrial-frequency
synchronization alarm
is generated.
1. Check whether the parallel board
connector is loose.
2. Replace the power unit or module.
3. Replace the parallel cable.
4. Replace the parallel board.
Bypass Current
Imbalance
Minor
The bypass current is
unequalized.
1. Check whether the output circuit
breaker and bypass input circuit
breaker on each rack are ON.
2. Check whether bypass input and
output power cables on each rack
meet the length requirements.
3. If the fault persists, remove the
bypass unit or module, tap Fault
Clear, and replace the bypass unit or
module.
Bypass Input
Phase Lock
Failure
Minor
The inverter is not
synchronized.
1. Check whether the bypass input
frequency changes fast.
2. Check whether the output frequency
track rate is correctly set.
ECM Not
Ready
Critical
The ECM ejector lever
is not fastened.
1. Fasten the ejector lever.
2. If the alarm persists, replace the
ECM.
Inconsistent
Bypass Parallel
Cable
Connection
Critical
The phase sequences of
bypass input cable
connections are
inconsistent between
racks in a parallel
system.
Reconnect the bypass input cable to the
involved rack.
Power Cabinet
Power Supply
Status Conflict
Critical
The power supply
states of racks conflict
with each other.
Check the power supply status of each
rack after the alarm is cleared. If certain
racks have no output, you are advised to
start them manually.
Inconsistent
Output Parallel
Cable
Connection
Critical
After the boot mode is
executed, the phase
sequences of output
cable connections are
inconsistent between
racks in a parallel
system.
Check whether the output wiring phase
sequence of the rack is correct and
reenter the parallel system phase
sequence detection boot mode.