Output Overcurrent Detection - Daikin FTXS20G2V1B Service Manual

SiENBE04-808_A

4.23 Output Overcurrent Detection

L5
Remote Control
Display
Method of An output overcurrent is detected by checking the current that flows in the inverter DC section.
Malfunction
Detection
„ A position signal error occurs while the compressor is running.
Malfunction
„ A speed error occurs while the compressor is running.
Decision
„ An output overcurrent signal is fed from the output overcurrent detection circuit to the
Conditions
„ If the error repeats, the system is shut down.
„ Reset condition: Continuous run for about 11 minutes (50 class: 5 minutes) without any
„ Poor installation condition
Supposed
„ Closed stop valve
Causes
„ Defective power module
„ Wrong internal wiring
„ Abnormal supply voltage
„ Defective outdoor unit PCB
„ Defective compressor
Service Diagnosis
microcomputer.
other error
Troubleshooting
138