Mitsubishi FR-A800-E - Page 6

CONTENTS
5
2.11.2 Connection of the brake unit (FR-BU) ............................................................................................................65
2.11.3 Connection of the brake unit (BU type)...........................................................................................................66
2.11.4 Connection of the high power factor converter (FR-HC2) ..............................................................................67
2.11.5 Connection of the multifunction regeneration converter (FR-XC)...................................................................67
2.11.6 Connection of the power regeneration common converter (FR-CV) ..............................................................71
2.11.7 Connection of the power regeneration converter (MT-RC).............................................................................72
2.12 Installing a communication option 73
3 PRECAUTIONS FOR USE OF THE INVERTER 75
3.1 Electro-magnetic interference (EMI) and leakage currents 76
3.1.1 Leakage currents and countermeasures ........................................................................................................76
3.1.2 Countermeasures against inverter-generated EMI.........................................................................................78
3.1.3 Built-in EMC filter............................................................................................................................................80
3.2 Power supply harmonics 82
3.2.1 Power supply harmonics.................................................................................................................................82
3.2.2 Harmonic suppression guidelines in Japan ....................................................................................................83
3.3 Installation of a reactor 85
3.4 Power-OFF and magnetic contactor (MC) 86
3.5 Countermeasures against deterioration of the 400 V class motor insulation 87
3.6 Checklist before starting operation 88
3.7 Failsafe system which uses the inverter 91
4 PROTECTIVE FUNCTIONS 93
4.1 Inverter fault and alarm indications 94
4.2 Reset method for the protective functions 94
4.3 Fault history and the list of fault displays 95
5 PRECAUTIONS FOR MAINTENANCE AND
INSPECTION 97
5.1 Inspection item 98
5.1.1 Daily inspection...............................................................................................................................................98
5.1.2 Periodic inspection..........................................................................................................................................98
5.1.3 Daily and periodic inspection..........................................................................................................................99
5.1.4 Checking the inverter and converter modules ..............................................................................................101
5.1.5 Cleaning........................................................................................................................................................101
5.1.6 Replacement of parts....................................................................................................................................102
5.1.7 Removal and reinstallation of the control circuit terminal block ....................................................................121
5.2 Measurement of main circuit voltages, currents, and powers 123