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III
CONTENTS
3.4.13 DU/PU, terminal FM/AM monitor display selection (Pr. 46 to Pr. 48, Pr. 50, Pr. 52, Pr. 54) ....... 86
3.4.14 Operation selection at instantaneous power failure (Pr. 57)........................................................ 89
3.4.15 Free parameter (Pr. 58, Pr. 59) ................................................................................................... 90
3.4.16 Key lock selection of operation panel(Pr. 61) .............................................................................. 90
3.4.17 Retry function (Pr. 65, Pr. 67 to Pr. 69) ....................................................................................... 91
3.4.18 Reset selection/disconnected PU detection/PU stop selection (Pr. 75) ...................................... 92
3.4.19 Parameter write disable selection (Pr. 77)................................................................................... 94
3.4.20 Current control (Pr. 82, Pr. 83) .................................................................................................... 95
3.4.21 Wiring and configuration of PU connector ................................................................................... 95
3.4.22 Initial settings and specifications of RS-485 communication (Pr. 117 to Pr. 124) ....................... 97
3.4.23 Mitsubishi inverter protocol (computer link communication)........................................................ 98
3.4.24 Initial setting and specification for the CC-Link communication function (Pr. 542 to Pr. 544) ... 109
3.4.25 Operation at a communication error (Pr. 500 to Pr. 502) .......................................................... 115
3.4.26 Communication EEPROM write selection (Pr. 342) .................................................................. 116
3.4.27 Setting of the parameter unit and operation panel (Pr. 145, Pr. 990, Pr. 991) .......................... 117
3.4.28 Terminal FM and AM calibration (calibration parameter C0 (Pr. 900), C1 (Pr. 901)) ................ 118
3.5 Parameter clear / All parameter clear ............................................ 120
3.6 Parameter copy and parameter verification................................... 121
4 PROTECTIVE FUNCTIONS 123
4.1 Troubleshooting............................................................................... 124
4.2 Reset method of protective function.............................................. 124
4.3 List of fault and alarm indications.................................................. 125
4.4 Causes and corrective actions ....................................................... 126
4.5 Correspondences between digital and actual characters............. 133
4.6 Check and clear of the faults history ............................................. 134
4.7 Check first when you have a trouble .............................................. 136
5 MAINTENANCE AND INSPECTION 137
5.1 Inspection items.............................................................................. 138
5.1.1 Daily inspection .......................................................................................................................... 138
5.1.2 Periodic inspection ..................................................................................................................... 138
5.1.3 Daily and periodic inspection list ................................................................................................ 139
5.1.4 Checking the converter module.................................................................................................. 140
5.1.5 Cleaning ..................................................................................................................................... 140
5.1.6 Replacement of parts ................................................................................................................. 141
5.2 Measurement of main circuit voltages, currents and powers ....... 145
5.2.1 Insulation resistance test using megger ..................................................................................... 146
5.2.2 Pressure test .............................................................................................................................. 146
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