Mitsubishi Electric 9900B Series Owner Technical Manual page 68

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