Power Converter Module Fault Codes; Table 15 Bypass Module Fault Code List - Mitsubishi Electric 1100B Series Owner Technical Manual

6.2 POWER CONVERTER MODULE FAULT CODES

Table 15 Bypass Module Fault Code List

Code
Status
indication
message
(Note 2)
AC INPUT VOLTAGE
MA801
OUT OF RANGE
AC INPUT FREQUENCY
MA802
OUT OF RANGE
AC INPUT PHASE
MA803
ROTATION ERROR
CONVERTER OPE.
MA804
INHIBITION
INVERTER
MA806
OVERLOAD
INVERTER
MA807
OVERLOAD
INVERTER
MA810
OVERLOAD
EMERGENCY STOP
MA817
ACTIVATED
MA824 72B OPEN
MA825 BATTERY ABNORMAL
COOLING FAN
MA828
ABNORMAL
MA834 BATTERY DEPLETED
INVERTER
MA836
OVERLOAD
UPS CONTROL CIRCUIT
MA866
ERROR
INPUT CIRCUIT
MF001
ABNORMAL
CONVERTER
MF002
OVERCURRENT
MF003 PRECHARGE FAULT
MF102 DC OVERVOLTAGE
MF103 DC UNDERVOLTAGE
MF104 DISCHARGE FAULT
CHOPPER
MF108
OVERCURRENT
1100B SERIES UPS
OWNERS / TECHNICAL MANUAL
Input line voltage is out of the specific range.
Input line frequency is out of the specified range.
Input line power conductors are not wired in a proper
phase sequence.
The converter interlock is active.
The inverter output current has exceeded 110% for 1
min. or 130% for 30sec. of the rated current.
The inverter output current has exceeded 110% of the
rated current.
Short time over-current has exceeded 150% of the
rated current
The emergency stop was activated by the EPO switch
or an external contact.
The battery disconnect contactor 72B open.
Battery voltage is less than end voltage at startup.
Rotation sensor detect fan abnormal.
The battery voltage has reached the depleted level.
The output load active power has exceeded 110% of
the rated current.
Communication signal was lost from the bypass
module.
Detection of a large variation of the reference error
signal.
Detection of converter overcurrent.
Pre-charging circuit is not working properly.
DC voltage surpasses the overvoltage level.
DC voltage dropped below the undervoltage level.
Capacitor voltage is higher than 100V at 5 minutes
after module stop.
Detection of DC overcurrent.
MITSUBISHI ELECTRIC 1100B SERIES UPS
Meaning
Page Number:
6-5
External relay
contact
(Note 1)
Alarm
AC input
abnormal
Alarm
AC input
abnormal
Alarm
AC input
abnormal
Alarm
Alarm
Overload
Alarm
Overload
Alarm
Overload
Alarm
Alarm
Alarm
Alarm
Major
End-of-
Discharge
Alarm
Overload
Minor
Major
Major
Major
Major
Major
Major
Major