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80 G9000 Installation and Operation Manual
Note 3
Note 1
Note 2
Code
indication
Status message Meaning Guidance Buzzer
External
relay contact
Failure
lamp
UF201
INVERTER
OVERVOLTAGE
Detection of output overvoltage.
CALL SERVICE
ENGINEER
Continuous
sound
Major Lit on
UF202
INVERTER
UNDERVOLTAGE
Output voltage dropped.below specs.
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 abnormal.
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 OVERTEMP
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
UF253
UPS CONTROL
CIRCUIT ERROR
Discrepancy between output voltage and
inverter voltage, or between output voltage
and bypass voltage.
CALL SERVICE
ENGINEER
Intermittent
sound
Minor Flicker
UF256
OUTPUT VOLTAGE
ABNORMAL
Output voltage is outside of the specified
range.
CALL SERVICE
ENGINEER
Intermittent
sound
Minor Flicker
UF257 52C ABNORMAL
Contactor 52C failed to open during load
transfer from inverter to bypass.
CALL SERVICE
ENGINEER
Intermittent
sound
Minor Flicker
UF258 LOAD ABNORMAL
Load transfer due to overload for over 4
times within 5 minutes.
CALL SERVICE
ENGINEER
Intermittent
sound
Minor Flicker
UF259
ANOTHER UPS
ABNORMAL
No detection of another UPS voltage signal.
CALL SERVICE
ENGINEER
Intermittent
sound
Minor Flicker