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SiEN12-710A
Troubleshooting
Service Diagnosis
137
4.20 Output Over Current Detection
Remote Control
Display
L5
Method of
Malfunction
Detection
An output over-current is detected by checking the current that flows in the inverter DC section.
Malfunction
Decision
Conditions
"
A position signal error occurs while the compressor is running.
"
A speed error occurs while the compressor is running.
"
An output over-current input is fed from the output over-current detection circuit to the
microcomputer.
"
The system will be shut down if the error occurs 8 times.
"
Clearing condition: Continuous run for about 11 minutes (normal)
Supposed
Causes
"
Over-current due to defective power transistor
"
Over-current due to wrong internal wiring
"
Over-current due to abnormal supply voltage
"
Over-current due to defective PCB
"
Error detection due to defective PCB
"
Over-current due to closed stop valve
"
Over-current due to compressor failure
"
Over-current due to poor installation condition
Summary of Contents for 2MKS40FV1B
Page 11: ...Introduction SiEN12 710A x ...
Page 12: ...SiEN12 710A List of Functions 1 Part 1 List of Functions 1 Cooling Only 2 2 Heat Pump 4 ...
Page 17: ...Heat Pump SiEN12 710A 6 List of Functions ...
Page 25: ...Heat Pump SiEN12 710A 14 Specifications ...
Page 111: ...Instruction SiEN12 710A 100 Operation Manual ...
Page 199: ...Wiring Diagrams SiEN12 710A 188 Appendix ...
Page 203: ...SiEN12 710A iv Index ...