MITSUBISHI ELECTRIC 9800A SERIES UPS User Manual
Page 66
MITSUBISHI
ELECTRIC
9800A SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
6-5
MITSUBISHI ELECTRIC 9800A SERIES UPS
UA817
EMERGENCY STOP
ACTIVATED
Emergency stop applied
-
-
Alarm
-
UA819
REMOTE START
BUTTON ABNORMAL
There is an error with the remote
start switch.
CALL SERVICE
ENGINEER
[1] Alarm -
UA820
REMOTE STOP BUTTON
ABNORMAL
There is an error with the remote
stop switch.
CALL SERVICE
ENGINEER
[1] Alarm -
UA824 CB2
OPEN
Battery disconnect circuit breaker
CB2 turned OFF
TURN ON CB2
[1]
Alarm
-
UA831
EMERGENCY BYPASS
SWITCH ON
Emergency bypass switch turned
to
- [1]
Alarm
-
UA834
BATTERY DEPLETED
INV. STOPPED
DC voltage dropped below
discharge end during inverter
operation
- -
Alarm
-
UA841
CONVERTER OPE.
PROHIBITION
Converter operation interlock
applied
- -
Alarm
-
UA842
OUTPUT CIRCUIT
ABNORMAL
Load bus voltage sensor
abnormality
- -
Alarm
-
#1: It has the possibility that output short-circuits.
#2:Check the CB3 and Bypass Thyristors.