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5. SELF PROTECTING FUNCTION
5.1 Protection for IC
1
Does IC receive IPM protect signal?
• Normal operating.
• IC continues to stop compressor until 1 hour.
• IC indicates Self Diagnosing sign.
• IC continues to stop compressor until 1 hour.
• IC indicates Self Diagnosing sign.
2
IC orders to stop compressor for 10 min.
3
After 10 min., does PCB check if IPM protect
signal is normal?
4
IC cancels to stop compressor.
Normal operating?
5
After restarting, does “Stop compressor”
occure 10 times within 2 min?
6
IC cancels to stop compressor.
Normal operating?
8
Does system protection cycle for 333 times?
7
After 1 hour.
9
IC order to stop compressor completely.
YES
YES
YES
SYSTEM PROTECT CONTROL CYCLE
1st time
SYSTEM PROTECT CONTROL CYCLE
333rd time
STOP COMPRESSOR
OPERATE each 7min X 10 times COMPRESSOR 1hour STOP
OPERATE each 7min X 10 times
NO
NO
NO
YES
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6/27/2559 BE 4:44 PM
6/27/2559 BE 4:44 PM
