Huawei UPS2000-A-6KTTS-S Quick Manual page 21

Alarm
Alarm Name
ID
Maintenance
circuit 3B
breaker ON
Internal fault 2A
Parallel
settings 43
abnormal
Bypass
47
backfeed
Parallel
cables 53
abnormal
Parallel cable
54
alarm
EPO 55
Insufficient
5E
redundancy
Parallel
parameter 7D
inconsistency
Alarm
Cause Repair Proposal
ID
Possible cause: The maintenance bypass switch is ON during
UPS maintenance.
1
Measure: Set the maintenance bypass switch to OFF after
maintenance.
• Possible cause: The mains has experienced a transient high
voltage.
Measure: Rectify the fault and restart the UPS.
• Possible cause: The output supplies power to special loads
11 such as the inductive and rectification loads.
Measure: Check that the load types are supported by the
UPS.
• Possible cause: The hardware is damaged.
Measure: Contact Huawei technical support.
Possible cause: The single UPS or parallel system settings are
1 inconsistent with the system cable connections.
Measure: Check the single UPS and parallel system settings.
Possible cause: Bypass components are faulty.
1
Measure: Contact Huawei technical support.
1
• Possible cause: The parallel cables connected are loose.
2
Measure: Check that parallel cables are securely connected.
• Possible cause: Parallel cables are damaged.
4
Measure: Replace the parallel cables.
5
• Possible cause: The parallel cables connected are loose.
2
Measure: Check that parallel cables are securely connected.
• Possible cause: The parallel cables are damaged.
3
Measure: Replace the parallel cables.
Possible cause: You have pressed the EPO switch.
1 Measure: Restore the EPO switch status, clear the alarm, and
restart the UPS.
• Possible cause: The number of redundant UPSs is too large.
Measure: Reduce the number of redundant UPSs or set the
UPS to work in non-redundant mode.
1 • Possible cause: The load exceeds the rated loading capacity
of the UPSs that are working in the parallel system.
Measure: Lower the load or replace the UPS with a UPS
with a larger capacity.
Possible cause: Parallel parameters are inconsistent between
1 UPSs in the parallel system.
Measure: Manually synchronize parallel parameters.
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Industrial Base, Bantian, Longgang
20
Shenzhen 518129
People's Republic of China
www.huawei.com