Kutai electronics GCU-3000 User Manual

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22 GCU-3000
SYMPTOM
SYMPTOM CONFIRMATION
EXECUTION
Emergency signal does not
erase, can not be started
• Check emergency stop button operation
• Check for wiring open circuit
• Change emergency stop
button
• Correct error
Temperature can not be read
under operation
• Check temperature sensor type
• Check for temperature sensor open circuit
• Check if temperature sensor setting turned
off
• None of the above
• Change GCU exclusive
temperature sensor
• Correct error
• Correct internal setting
• Change GCU exclusive
temperature sensor
Oil pressure can not be read
under operation
• Check oil pressure sensor
• Check for open circuit
• Check system setting if oil pressure sensor
deselected
• Non of the above
• Change GCU exclusive oil
pressure sensor
• Correct error
• Correct internal setting
• Change GCU exclusive oil
pressure sensor
Frequency can not be read
under operation
• Check AC voltage (5  500 Vac)
• Check AC input protection fuse (F1, F2, F3)
• Change AVR
• Change fuse
Under normal operation. The
GCU load current value
differs to the actual
measured current value
• Check internal CT if comply with the external
CT ratio
• Check external CT secondary if ratio equals
to 5A
• Check external CT circuit
• Check system setting internal current reading
and adjustment setting if correct
• Correct CT ratio setting
• Change secondary CT to
value : 5A ratio CT
• Correct error
• Correct internal setting
Module appears overload
failure during operation
• Check system setting if overload failure
setting is reasonable
• Check internal CT if comply with the external
CT ratio
• Check external CT secondary if ratio equals
to 5A
• Check system setting if overload failure
confirmation time is too short
• Correct internal setting
• Correct CT ratio setting
• Correct internal setting
• Correct internal setting
Module appears low oil
pressure warning during
operation
• Check lubricant level
• Check oil pressure switch operation
• Check NO or NC setting
• Check oil pressure sensor operation
• Check for wiring open circuit
• Add lubricant to correct level
• Change oil pressure switch
• Correct internal setting
• Change GCU exclusive oil
pressure sensor
• Correct error
Module appears high water
temperature warning during
operation
• Check temperature
• Check water temperature switch operation
• Check temperature sensor operation
• Check for wiring open circuit
• Correct error
• Change water temperature
switch
• Change GCU exclusive
temperature sensor
• Correct error

Kutai electronics GCU-3000 Specifications

General

Brand	Kutai electronics
Model	GCU-3000
Category	Control Unit
Language	English