1100A SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
6-2
MITSUBISHI ELECTRIC 1100 SERIES UPS
6.1 BYPASS MODULE FAULT CODES
Table 6.1
Bypass Module Fault Code List
Code
indication
(Note 2)
Status
Message
Meaning
Guidance
Audible
Alarm
External
relay
contact
(Note 1)
UA805
INVERTER
OVERLOAD
The output load current has
exceeded 100% of the rated
current.
WARNING:
DECREASE
LOAD
Intermittent
sound
Overload
Warning
UA806
INVERTER
OVERLOAD
The output load current peak has
exceeded 220% of the rated
current.
WARNING:
DECREASE
LOAD
Intermittent
sound
Overload
Warning
UA807
INVERTER
OVERLOAD
The output load current has
exceeded 105% of the rated
current.
WARNING:
DECREASE
LOAD
Intermittent
sound
Overload
UA808
INVERTER
OVERLOAD
The output load current has
exceeded 100% of the rated current
during bypass supply.
WARNING:
DECREASE
LOAD
Intermittent
sound
Overload
UA812
BYPASS VOLTAGE
OUT OF RANGE
Bypass line voltage is out of the
specific range.
CHECK
BYPASS
INPUT
Intermittent
sound
Bypass
Input
Abnormal
UA813
BYPASS PHASE
ROTATION ERROR
Bypass line power conductors are
not wired in a proper phase
sequence.
CHECK
BYPASS
INPUT
Intermittent
sound
Bypass
Input
Abnormal
UA814
BYPASS
FREQUENCY OUT
OF RANGE
Bypass line frequency is out of the
specific range.
CHECK
BYPASS
INPUT
Intermittent
sound
Bypass
Input
Abnormal
UA817
EMERGENCY
STOP ACTIVATED
The emergency stop was activated
by the EPO switch or an external
contact.
-
Continuous
sound
Alarm
UA819
REMOTE BUTTON
ABNORMAL
Remote start signal is being
received continuously for a
considerable time.
-
Intermittent
sound
Alarm
UA820
LOCAL BUTTON
ABNORMAL
Local start or stop signal is being
received continuously for a
considerable time.
CALL
SERVICE
ENGINEER
Intermittent
sound
Alarm
UA821
TRANSFER
INHIBITION
The UPS cannot transfer to the
bypass because the inverter output
is not synchronized to the bypass.
- - Alarm
UA822
TRANSFER
INHIBITION
The UPS cannot transfer to the
bypass because of backup
generator operation.
- - Alarm
UA824
72B OPEN
The battery disconnect contactor
72B in power converter module is
opened.
- - Alarm
UA830
INTERLOCK
SWITCH ON
Interlock switch was turned on.
-
Intermittent
sound
Alarm
UA831
EMERGENCY
BYPASS SWITCH
ON
Emergency bypass switch has been
turned on.
-
Intermittent
sound
Alarm
UA834
BATTERY
DEPLETED/AC
OUT STOPPED
The battery voltage has reached the
depleted level.
CALL
SERVICE
ENGINEER
Continuous
sound
End-of-
Discharge
UA835
TRANSFER
INHIBITION
The UPS could not transfer to the
bypass because the bypass source
has an abnormality.
-
- Alarm
UA861
MODULE ALARM
A power converter module has
detected an alarm condition.
CALL
SERVICE
ENGINEER
Intermittent
sound
Alarm
UA862
MODULE MINOR
FAULT
A power converter module has
detected a minor fault condition.
CALL
SERVICE
ENGINEER
Intermittent
sound
Alarm
UA863
MODULE INPUT
VOLTAGE OUT OF
RANGE
A power converter module has
detected input voltage abnormal.
CHECK
INPUT
POWER
SOURCE
Intermittent
sound
Alarm
UA864
MODULE
OVERLOAD
A power converter module has
detected output overload.
WARNING :
DECREASE
LOAD
Intermittent
sound
Alarm