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MITSUBISHI
ELECTRIC
2033D SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
6
-4
MITSUBISHI ELECTRIC 2033D SERIES UPS
(Note 9)
Code
indication
Status message
Contents
Guidance
(Note 1)
Buzzer
(Note 2)
External
send-out
contact
(Note 3)
Failure
lamp
UA806
INVERTER OVERLOAD
> 100%
Overload exceeded 105% (Note 7)
WARNING:
DECREASE
LOAD
[2] Alarm -
UA809
INVERTER OVERLOAD
> 150%
Overload exceeded 150% (Note 7)
WARNING:
DECREASE
LOAD
[2] Alarm -
UA810 INVERTER OVERLOAD
Instantaneous overload. (Output
voltage -30% for 2ms)
WARNING:
DECREASE
LOAD
[2] Alarm -
UA812
BYPASS VOLTAGE OUT
OF RANGE
Bypass voltage fell out of +/- 12%
range
CHECK BYPASS
INPUT
[3] Alarm -
UA813
BYPASS PHASE
ROTATION ERROR
Phase rotation is inverted when bypass
voltage is normal
CHECK BYPASS
INPUT
[2] Alarm -
UA814
BYPASS FREQUENCY
OUT OF RANGE
Bypass frequency fell out of inverter
synchronization follow-up range
CHECK BYPASS
INPUT
[3] Alarm -
UA817
EMERGENCY STOP
ACTIVATED
Emergency stop applied - - Alarm -
UA832
ASYNCHRONOUS
TRANSFER
Asynchronous transfer occurred - [2] Alarm -
UA834
BATTERY DEPLETED
AC OUT STOPPED
DC voltage dropped below discharge
end during inverter operation
- - Alarm -
UA835
BATTERY DEPLETED
AND RESTART
Restart after battery depleted - - Alarm -
UA852 INVERTER OVERLOAD
Total of more than 110% load during
MMS operation.
WARNING:
DECEASE
LOAD
[2] Alarm -
UA853
RETRY START
OPERATION
Continuous bypass voltage abnormal,
inverter stop, and 72B closed for 1 min.
will stop the UPS. (Fan stop)
[2] Alarm -