Troubleshooting - Hitachi SAMURAI Series Service Manual

4 Troubleshooting

Index
4.1 Inspection of power source and connections ........................................................................................ 90
4.2 Inspection of PCB.................................................................................................................................. 91
4.3 Confirmation of operating value of protection devices and automatic operation devices ..................... 91
4.4 Protection control function ..................................................................................................................... 92
4.5 Alarm indication ..................................................................................................................................... 93
4.6 Summary of fault diagnosis ................................................................................................................... 94
4.7 Method for fault diagnosis ..................................................................................................................... 96
4.8 Troubleshooting by alarm code ............................................................................................................. 97
4.9 Analysis and countermeasure of abnormalities................................................................................... 121
4.10 Thermistor characteristics ................................................................................................................... 127
4.10.1 Thermistor temperature characteristics (All temperature except discharge gas) ...................................... 127
4.10.2 Thermistor temperature characteristics for discharge gas temperature .................................................... 127
4.11 Pressure sensor characteristics .......................................................................................................... 128
4.11.1 High-pressure sensor ................................................................................................................................ 128
4.11.2 Low-pressure sensor ................................................................................................................................. 128
4.12 Procedures for trouble ......................................................................................................................... 128
89 SMGB0120 rev.0 - 11/2017
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T r o u b l e s h o o t i n g
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