80 G9000 Installation and Operation Manual
Status message Meaning Guidance Buzzer
Detection of output overvoltage.
Output voltage dropped.below specs.
Detection of inverter overcurrent.
Major Lit on
UF204
OUTPUT CIRCUIT
ABNORMAL
Detection of a large variation of the reference
error signal (current reference and actual
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ENGINEER
Continuous
sound
Major Lit on
UF206
UPS CONTROL
CIRCUIT ERROR
Discrepancy between output voltage and
external voltage (bypass, common ac bus)
Inverter zero-sequence overcurrent.
UPS CONTROL
CIRCUIT ERROR
Cross current is abnormal.
Major Lit on
UF209 52C ABNORMAL Error to close the contactor 52C.
Major Lit on
UF210 52C ABNORMAL Error to open the contactor 52C.
Major Lit on
UF211 52C ABNORMAL
No answer from contactor 52C during
inverter operation.
Major Lit on
UF213 OVERTEMP
Heatsinks temperature exceeds thermal
settings.
Thermal relay activated protection.
Detection of inverter output phase
overvoltage.
Detection of zero-sequence overcurrent.
Major Lit on
UF253
UPS CONTROL
CIRCUIT ERROR
Discrepancy between output voltage and
inverter voltage, or between output voltage
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Intermittent
sound
Minor Flicker
UF256
Output voltage is outside of the specified
range.
Minor Flicker
UF257 52C ABNORMAL
Contactor 52C failed to open during load
transfer from inverter to bypass.
Minor Flicker
UF258 LOAD ABNORMAL
Load transfer due to overload for over 4
times within 5 minutes.
No detection of another UPS voltage signal.
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