Fujitsu Airstage J-II Service Manual page 41

Protective Function
Detect Parts
Overcurrent Break Overcurrent
Stop Protection Circuit
(Compressor)
Heatsink Temp Heatsink Temp
Protection Stop Thermistor
Frequency Maximum Current Detector
Setting Protection Circuit
(Compressor)
COOL HEAT DISPLAY
E941
Compressor is stopped when the over currernt protectioncircuit in the
inverter PCBoad detects an abnormal current duringthe operation.
(permanent stop)
If it repeated 5 times, the compressor becomes permanentstop.
E931
Compressor is stopped when the over current protection circuit in the
inverter PC Board detects an abnormal current at the time of start up.
(permanent stop)
Compressor becomes permanent stop if it repeated over the number
of set time.
<Reset condition>
Error reset (push button SW) executed after power turned on again.
<Pattern
Heat sink temperature
<Pattern
3 minutes have elapsed and heat sink temperature
EAC4 <Pattern
Pattern
<Pattern
10 minutes have elapsed and heat sink temperature
<Pattern
Current value
<Pattern
Current value
<Pattern
Current value
<Pattern
Current value
• Pattern
temperature
Operating Condition
starting condition>
100°C
reset condition>
starting condition>
generated 3 times within 60 minutes.
reset condition>
starting condition>
Cooling: 22.5A / Heating: 23.5A
reset condition>
Cooling: 22.5A / Heating: 23.5A
starting condition>
Cooling: 23.0A / Heating: 24.0A
reset condition>
Cooling: 23.0A / Heating: 24.0A
and start current value changed by outside
02-13
Operation
Compressor stopped
Compressor stopped
85°C
Compressor stopped
Error display
85°C
Compressor speed rise prohibited
Compressor speed lowered