Panasonic NR-BW464VS - Self Protecting Function; IC Protection

NR-BW414 / NR-BW464
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4.1 Protection for IC
1
Does IC receive IPM protect signal?
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?
9
IC orders to stop compressor completely.
YES
YES
NO
YES
• Normal operating.
• IC continues to stop compressor until 1 hour.
• IC indicates Self diagnosing sign.
NO
NO
YES
7
After 1 hour.
SYSTEM PROTECT CONTROL CYCLE
1
st
time
OPERATE each 7min X 10 times COMPRESSOR 1hour STOP OPERATE each 7min X 10 times
SYSTEM PROTECT CONTROL CYCLE
333
rd
time
STOP COMPRESSOR
• IC continues to stop compressor until 1 hour.
• IC indicates Self diagnosing sign.
4. SELF PROTECTING FUNCTION