Hitachi FSG1 Series Technical Catalogue page 407

18.4.3 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)
Cause of Stoppage for Inverter (Content of Check Item " VR+
n
Code
1
Automatic Stoppage of Transistor Module (IPM Error)
(Over Current, Decrease Voltage, Increase
Temperature)
2
Instantaneous Over Current
3
Abnormal Inverter Fin Thermistor
4
Electronic Thermal Activation
5
Inverter Voltage Decrease
6
Increase Voltage
8
Abnormal Current Sensor
9
Instantaneous Power failure Detection
11
Reset of Micro-Computer for Inverter
12
Earth Fault Detection for Compressor (Only Starting)
13
Abnormal Power Source Phase
Cause
TROUBLESHOOTING
Upper Limit
Running Current of Compressor MC1
indicated on 7-segment
VR+ ") VR+ VR+
Cause of Stoppage for
Corresponding Unit
during Retry
17
17
17
17
18
18
17
18
18
17
18
18
Lower Limit
Remark
Indication
Alarm Code
P17 53
P17 52
P17 54
P17 52
P18 06
P18 06
P17 51
- -
- -
P17 53
- -
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