MITSUBISHI ELECTRIC 1100B SERIES UPS
1100B SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
6-6
Code
indication
(Note 2)
Status
message
Meaning
External relay
contact
(Note 1)
MF109
DC UNBALANCED
Major unbalance of the neutral point voltage.
Major
MF112
DC CIRCUIT ABNORMAL
Sudden change of the DC voltage level.
Major
MF128
CONTROL POWER
SUPPLY ABNORMAL
Power supply voltage to IGBT driver PCB is below the
specified level.
Major
MF162
BATTERY ABNORMAL
Failure detection based on battery self-check.
Minor
MF163
BATTERY VOLTAGE
ABNORMAL
Battery voltage is abnormal.
Minor
MF169
BATTERY VOLTAGE
ABNORMAL
Battery voltage is abnormal.
Minor
MF170
VDB SENSOR
ABNORMAL
Detection of a large variation of the difference
between control-only and protection-only battery
voltage.
Minor
MF201
INVERTER
OVERVOLTAGE
Detection of output overvoltage.
Major
MF202
INVERTER
UNDERVOLTAGE
Output voltage dropped.
Major
MF203
INVERTER
OVERCURRENT
Detection of inverter overcurrent.
Major
MF204
OUTPUT CIRCUIT
ABNORMAL
Detection of a large variation of the reference error
signal (current reference and actual current).
Minor
MF206
UPS CONTROL CIRCUIT
ERROR
Discrepancy between output voltage and external
voltage (bypass, common ac bus)
Major
MF208
UPS CONTROL CIRCUIT
ERROR
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
ABNORMAL
Thermal relay activated protection.
Major
MF253
UPS CONTROL CIRCUIT
ERROR
Discrepancy between output voltage and inverter
voltage, or between output voltage and bypass
voltage.
Minor
MF301
UPS CONTROL CIRCUIT
ERROR
AD reference has an abnormal value.
Major
MF302
UPS CONTROL CIRCUIT
ERROR
Detection of an external interruption during the
software execution.
Major
MF303
UPS CONTROL CIRCUIT
ERROR
Timer does not reset in the specified period (WDT
settings)
Major
MF305
UPS CONTROL CIRCUIT
ERROR
Detection of an abnormal clock speed in the DSP or
FPGA.
Major
MF306
UPS CONTROL CIRCUIT
ERROR
Control power supply voltage is below the specified
level.
Major
MF309
INVERTER VOLTAGE
ABNORMAL
Inverter voltage is out of the specified range.
Major
Summary of Contents for 1100B Series
Page 2: ...Preface ...
Page 64: ......