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● The LCD backlight automatically turns on when a critical alarm is generated.
● The buzzer keeps buzzing when there is a critical alarm. If manual alarm clearance is
enabled, ten seconds after you exit the setting screen, the device restores the initial status of
manual alarm clearance and cancels critical alarms.
Table 4-8 Critical alarms
Code
Display
Meaning
02
Overtemperature
03
Battery overvoltage
05
Output short-circuit detected by
the internal converter
06
Output overvoltage
07
Download timeout
08
Bus overvoltage
09
Bus soft-start failure
50
PFC overcurrent
51
Output overcurrent
52
Bus undervoltage
53
UPS soft-start failure
55
DC overvoltage in AC output
57
Current sensor fault
58
Output undervoltage
60
Load backfeed
71
Inconsistent parallel versions
72
Parallel current equalization
fault
UPS2000-G-3KRTLL
User Manual
4 Control Panel
Issue 01 (2020-10-26)
Copyright © Huawei Technologies Co., Ltd.
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