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78 G9000 Installation and Operation Manual
Note 3
Note 1
Note 2
Code
indication
Status message Meaning Guidance Buzzer
External
relay contact
Failure
lamp
UA824 CB2 OPEN The battery circuit breaker (CB2) is open. TURN ON CB2
Intermittent
sound
Alarm －
UA827
52C OPEN
PROHIBITED
The interlock for the inverter output contactor
(52C) is active.
－
Intermittent
sound
Alarm －
UA831
EMERGENCY
BYPASS SWITCH ON
Emergency bypass switch has been turned
on.
－
Intermittent
sound
Alarm －
UA833 52L OPEN The load circuit breaker(52L) is turned off. －
Intermittent
sound
Alarm －
UA834
BATTERY
DEPLETED/AC OUT
STOPPED
The battery voltage has reached the
depleted level.
－ －
Major
End-of-
Discharge
Lit on
UA835
TRANSFER
PROHIBITED
The UPS could not transfer to the bypass
because the bypass source has an
abnormality.
－ － Alarm －
UA860
REMOTE BUTTON
ABNORMAL
Remote start or stop signal is being received
continuously for a considerable time.
－
Intermittent
sound
Alarm －
UA861
LOCAL BUTTON
ABNORMAL
Local start or stop signal is being received
continuously for a considerable time.
－
Intermittent
sound
Alarm －
UA870
BALANCER
OVERLOAD
The UPS detected a neutral point voltage
unbalance.
－
Intermittent
sound
Alarm
Overload
－
UA890 EXTERNAL ALARM External Alarm relay turned on. －
Intermittent
sound
Alarm －
UF001
INPUT CIRCUIT
ABNORMAL
The MMS input reference error signal
exceeds specifications.
CALL SERVICE
ENGINEER
Continuous
sound
Major Lit on
UF002
CONVERTER
OVERCURRENT
Detection of MMS converter overcurrent.
CALL SERVICE
ENGINEER
Continuous
sound
Major Lit on
UF003
CONVERTER
ABNORMAL
Pre-charging circuit is not working properly.
CALL SERVICE
ENGINEER
Continuous
sound
Major Lit on
UF011 CB1 ABNORMAL
Major discrepancy between reference signal
and actual state of contactor CB1.
CALL SERVICE
ENGINEER
Continuous
sound
Major Lit on
UF052 CB1 ABNORMAL
Minor discrepancy between reference signal
and actual state of contactor CB1.
CALL SERVICE
ENGINEER
Intermittent
sound
Minor Flicker
UF056
CONVERTER
OVERCURRENT
Detection of SMS converter overcurrent.
CALL SERVICE
ENGINEER
Intermittent
sound
Minor Flicker
UF059
INPUT CIRCUIT
ABNORMAL
The SMS input reference error signal
exceeds specifications.
CALL SERVICE
ENGINEER
Intermittent
sound
Minor Flicker
UF102 DC OVERVOLTAGE DC voltage surpasses the overvoltage level.
CALL SERVICE
ENGINEER
Continuous
sound
Major Lit on
UF103 DC UNDERVOLTAGE
DC voltage dropped below the undervoltage
level.
CALL SERVICE
ENGINEER
Continuous
sound
Major Lit on
UF108
CHOPPER
OVERCURRENT
Detection of DC overcurrent from backup
battery.
CALL SERVICE
ENGINEER
Continuous
sound
Major Lit on