MITSUBISHI ELECTRIC 9900CX SERIES UPS
9900CX SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
6-7
Table 6.2
UPS Module Fault Code List
Code
indication
(Note 2)
Status
message
Meaning
External relay
contact
(Note 1)
MF119
DC GROUND FAULT
Detection of DC ground fault.
Major
MF128
CTRL.PWR. ABNL.
Power supply voltage to IGBT driver PCB is below the
specified level.
Major
MF154
CB2 ABNORMAL
During UVT, status signal from CB2 is ON.
Minor
MF159
DC GROUND FAULT
Detection of DC ground fault.
Minor
MF160
CTRL.CIRCUIT ERR.
Abnormal behavior of DC current sensor.
Minor
MF162
BATTERY ABNORMAL
Failure detection based on battery self-check.
Minor
MF163
BAT.VOLTAGE ABNL.
Battery voltage is abnormal.
Minor
MF179
DC GROUND FAULT
Detection of DC ground fault continued for 5 minutes.
Minor
MF201
INVERTER OV.
Detection of output overvoltage.
Major
MF202
INVERTER UV.
Output voltage dropped.
Major
MF203
INVERTER OC.
Detection of inverter overcurrent.
Major
MF204
O/P CIRCUIT ABNL.
Detection of a large variation of the reference error
signal (current reference and actual current).
Major
MF207
ZERO PHASE OC.
Inverter zero-sequence overcurrent.
Major
MF208
CTRL.CIRCUIT ERR.
Cross current is abnormal.
Major
MF210
52C ABNORMAL
Error to open the contactor 52C.
Major
MF213
OVERTEMPERATURE
Heatsink temperature exceeds thermal settings.
Major
MF214
COOLING FAN ABNL.
Thermal relay activated protection.
Major
MF217
INVERTER OV.
Detection of inverter output phase overvoltage.
Major
MF230
ZERO PHASE OC.
Detection of zero-sequence overcurrent.
Major
MF253
CTRL.CIRCUIT ERR.
Discrepancy between output voltage and inverter
voltage, or between output voltage and bypass
voltage.
Minor
MF254
COOLING FAN ABNL.
Thermal relay of cooling fan worked.
Minor
MF256
O/P VOLTAGE ABNL.
Output voltage is out of the specified range.
Minor
MF301
CTRL.CIRCUIT ERR.
AD reference has an abnormal value.
Major
Содержание 9900C Series
Страница 2: ...Preface Revision A 04 04 2017 4GBA0114 ...
Страница 61: ......