Hitachi FSG Series Service Manual page 81

n RUNNING CURRENT OF COMPRESSOR
n Inverter Primary Current
The inverter primary current is estimated from the
running current of the compressor MC1 indicated on
7-segments, as the right chart shows.
n Indicated Running Current of Compressor MC2,
MC3, MC4
The running current of the compressor MC2, MC3,
MC4, is detected by current sensor. (CT2 ~ CT4)
n Cause of Stoppage for Inverter (Content of Check Item "÷ ó C")
Code
Automatic Stoppage of Transistor Module
(IPM Error)
1
(Over Current, Decrease Voltage, Increase
Temperature)
Instantaneous Over Current
2
4 Electronic Thermal Activation
5 Inverter Voltage Decrease
6 Excessively High Voltage
8 Abnormal Current Sensor
9 Instantaneous Power failure Detection
Reset of Micro-Computer for Inverter
11
Cause
TROUBLESHOOTING
Running Current of Compressor MC1
indicated on 7-segment
Cause of Stoppage for
Corresponding Unit
17
17
17
18
18
17
18
18
1
73
Remark
Indication
Alarm Code
during Retry
P 17 53
P 17 52
P 17 52
P 18 06
P 18 06
P 17 51
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