Samsung RR39M7 Series, Руководство по обслуживанию

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TROUBLESHOOTING
If Failure Condition is detected during compressor is operating, immediately stop Compressor operating and stand by 5 minutes.
During this 5 minutes, RPM command signal is not available. It means, even if available RPM command signal is applied to the
compressor, it does not work and keep standing by.
Blinking time is 1 second and dwell time is 2 seconds.
Description LED Blinking Frequency Remarks
Normal Operation N/A
Starting Failure
1. Check the COMP terminals short (U,V,W).
2. Check the IPM Pin Short of Inverter PBA.
3. Check the IPM operating voltage (under DC 13.5V).
4. Other cases, check the COMP, cycle, etc.
SPM Fault
Position Sensing Error
1. Check the COMP wire connections (U,V,W).
2. Check the PBA bottom side soldering state.
3. Other cases, check the COMP, cycle, etc.
Motor Locked / Over RPM
1. Check the PBA bottom side soldering state.
2. Check the Input voltage oscillation.
3. Other cases, check the COMP, cycle, etc.
Under Voltage
1. Check Input voltage under.
AC 53V (Input power AC 110~127V) or
AC 106V (Input power AC 220~240V)
2. Check PBA Bottom side soldering state.
Over Voltage
1. Check Input voltage under.
AC 155V(Input power AC 110~127V) or
AC 310V(Input power AC 220~240V)
2. Check PBA Bottom side soldering state.
LED blinking frequency depending on protecting functions If the same blinking, After 5 minutes, follow the Remarks.
4-18) LED blinking frequency depending on protecting functions (Inverter PBA)