Samsung RSG5D SERIES Service Manual

Contents

87If Failure Condition is detected during compressor is operating, immediately stop Compressor operating and standby 5 minutes. During this 5 minutes, RPM command signal is not available. It means, even if available RPMcommand 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.LED blinking frequency depending on protecting functionsIf the same blinking, After 5 minutes, Follow the RemarksTROUBLESHOOTING4-2-19) LED blinking frequency depending on protecting functionsLED Blinking Frequency Protecting FunctionsNormal OperationStarting FailureSPM FaultAbnormal CurrentDetectionMotor Locked/Over RPMUnder VoltageOver VoltageRemarksN/A1. Short between COMP U, V, and W phase(CN04)2. Short among IPM Pins(No. #1~26)3. Drop the IPM operating Voltage under DC 13.5V4. Other cases, check the COMP, cycle, etc.1. Open the COMP wire(CN04)2. Bad condition of R1(ex. Bad soldering.)3. Other cases, check the COMP, cycle, etc.1. Operating the locked rotor COMP within 5 second.2. Operating the COMP under 1000 RPM more than 5second.3. Short the shunt resistor(R1) between leads.4. Occur the huge change of input voltage in a momeent5. Other cases, check the COMP, cycle, etc.1. Drop the input voltage under AC 106V2. Short resistor R312(DC link resistor)1. Increase the input voltage over AC 310V2. Short resistor among R309, R310 and R311(DC linkresistor)