Bypass Module Fault Codes; Table 6.1 Bypass Module Fault Code List - Mitsubishi Electric 1100A Series Owner Technical Manual

6.1 BYPASS MODULE FAULT CODES

Table 6.1 Bypass Module Fault Code List

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