AEC IST9, Руководство пользователя

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5 Use and Operation
67
NO. LCD fault
symbol
Buzzer status Meaning
15 Single Err. Slow beep Fall-off fault at one ends of the parallel wire.
16 PWR Long beep
UPS internal working power failure, if it cannot be
automatically recovered, please report repair
promptly.
17 Fan fault
Urgent beep
(alarm once
about every 0.2s)
Fan fault warning prompt, please check the fan
for damage or blocking.
18 CAN fault
Slow beep(alarm
once about every
2.0s)
The CAN communication of parallel system
abnormal, please check if the parallel wire is
damaged or there is only one UPS in parallel
system works.
19 SCI fault Long beep
UPS internal communication abnormal, if the
continuous alarm cannot be restored, please
report repair promptly.
20 No Redund
Slow beep (alarm
once about every
2.0s)
The total output load of the UPS parallel system
exceeds the full load of the single machine,
check that the output load exceeds the
requirements for redundant backups.
21 Grid Err.
Long beep
The mains power input phase sequence is
abnormal, please check the main power input
wiring.
3 continuous
alarms at 10s
intervals
The main power input occur lack N fault, power
down failure, overvoltage protection, under
voltage protection, over-frequency fault,
under-frequency fault, please check whether the
main power input status is normal.
22 BYP Err.
Slow beep (alarm
once about every
2.0s)
At mains status, the bypass voltage abnormal,
frequency abnormal, phase sequence abnormal,
or mode setting mismatches the wiring. Please
check if the bypass breaker is closed, if the