MITSUBISHI ELECTRIC 9900B SERIES UPS
MITSUBISHI
ELECTRIC
9900B SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
6-5
Table 6.1 (continuation)
Code
indication
(Note 3)
Status
message
Meaning
Guidance
Buzzer
External
relay contact
(Note 1)
Failure
lamp
(Note 2)
UF163
BATTERY
VOLTAGE
ABNORMAL
Battery voltage is
abnormality.
CALL
SERVICE
ENGINEER
Intermittent
sound
Minor
Flicker
UF170
VDB SENSOR
ABNORMAL
Detection of a large variation
of the difference between
control-only and
protection-only battery
voltage.
CALL
SERVICE
ENGINEER
Intermittent
sound
Minor
Flicker
UF171
UPS CONTROL
CIRCUIT ERROR
Battery current unbalance.
CALL
SERVICE
ENGINEER
Intermittent
sound
Minor
Flicker
UF201
INVERTER
OVERVOLTAGE
Detection of output
overvoltage.
CALL
SERVICE
ENGINEER
Continuous
sound
Major
Lit on
UF202
INVERTER
UNDERVOLTAGE Output voltage dropped.
CALL
SERVICE
ENGINEER
Continuous
sound
Major
Lit on
UF203
INVERTER
OVERCURRENT
Detection of inverter
overcurrent.
CALL
SERVICE
ENGINEER
Continuous
sound
Major
Lit on
UF204
OUTPUT
CIRCUIT
ABNORMAL
Detection of a large variation
of the reference error signal
(current reference and
actual current).
CALL
SERVICE
ENGINEER
Continuous
sound
Major
Lit on
UF206
UPS CONTROL
CIRCUIT ERROR
Discrepancy between output
voltage and external voltage
(bypass, common ac bus)
CALL
SERVICE
ENGINEER
Continuous
sound
Major
Lit on
UF207
ZERO PHASE
OVERCURRENT
Inverter zero-sequence
overcurrent.
CALL
SERVICE
ENGINEER
Continuous
sound
Major
Lit on
UF208
UPS CONTROL
CIRCUIT ERROR
Cross current is abnormality.
CALL
SERVICE
ENGINEER
Continuous
sound
Major
Lit on
UF209
52C ABNORMAL
Error to close the contactor
52C.
CALL
SERVICE
ENGINEER
Continuous
sound
Major
Lit on
UF210
52C ABNORMAL
Error to open the contactor
52C.
CALL
SERVICE
ENGINEER
Continuous
sound
Major
Lit on
UF211
52C ABNORMAL
No answer from contactor
52C during inverter
operation.
CALL
SERVICE
ENGINEER
Continuous
sound
Major
Lit on
UF213
OVERTEMPERAT
URE
Heatsinks temperature
exceeds thermal settings.
CALL
SERVICE
ENGINEER
Continuous
sound
Major
Lit on
UF214
COOLING FAN
ABNORMAL
Thermal relay activated
protection.
CALL
SERVICE
ENGINEER
Continuous
sound
Major
Lit on
UF217
INVERTER
OVERVOLTAGE
Detection of inverter output
phase overvoltage.
CALL
SERVICE
ENGINEER
Continuous
sound
Major
Lit on
UF230
ZERO PHASE
OVERCURRENT
Detection of zero-sequence
overcurrent.
CALL
SERVICE
ENGINEER
Continuous
sound
Major
Lit on
Содержание 9900B Series
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