Huawei PowerCube 5000 User Manual page 166

PowerCube 5000
User Manual (SmartLi 100Ah)
Device Alarm Name
Name
Power Supply
Power Cabinet
Address
Conflict
Parallel Cable
Alarm Between
Power Cabinets
Bypass Current
Imbalance
Bypass Input
Phase Lock
Failure
ECM Not
Ready
Inconsistent
Bypass Parallel
Cable
Connection
Power Cabinet
Power Supply
Status Conflict
Inconsistent
Output Parallel
Cable
Connection
Issue 02 (2020-03-17)
Alarm Fault Cause
Severit
y
controller has a low
voltage of ± 15 V.
Critical A rack address conflict
occurs.
Minor An intra-rack
industrial-frequency
synchronization alarm
is generated.
Minor The bypass current is
unequalized.
Minor The inverter is not
synchronized.
Critical The ECM ejector lever
is not fastened.
Critical The phase sequences of
bypass input cable
connections are
inconsistent between
racks in a parallel
system.
Critical The power supply
states of racks conflict
with each other.
Critical After the boot mode is
executed, the phase
sequences of output
cable connections are
inconsistent between
racks in a parallel
system.
Copyright © Huawei Technologies Co., Ltd.
Troubleshooting
2. Replace the ECM.
3. If the fault persists, replace the
parallel board.
Check the rack address setting.
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.
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.
1. Check whether the bypass input
frequency changes fast.
2. Check whether the output frequency
track rate is correctly set.
1. Fasten the ejector lever.
2. If the alarm persists, replace the
ECM.
Reconnect the bypass input cable to the
involved rack.
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.
Check whether the output wiring phase
sequence of the rack is correct and
reenter the parallel system phase
sequence detection boot mode.
A Alarm List
158