Mitsubishi Electric FR-A862-E Instruction Manual page 6

3 PRECAUTIONS FOR USE OF THE INVERTER 55
3.1 Electro-magnetic interference (EMI) and leakage currents
3.1.1 Leakage currents and precautions .................................................................................................................56
3.1.2 Precautions against inverter-generated EMI ..................................................................................................57
3.2 Power supply harmonics
3.2.1 Power supply harmonics.................................................................................................................................59
3.3 Installation of a reactor
3.4 Power-OFF and magnetic contactor (MC)
3.5 Precautions against deterioration of the 600 V class motor insulation
3.6 Checklist before starting operation
3.7 Failsafe system which uses the inverter
4 PROTECTIVE FUNCTIONS
4.1 Inverter fault and indications
4.2 Reset method for the protective functions
4.3 List of fault displays
5 PRECAUTIONS FOR
MAINTENANCE AND INSPECTION
5.1 Inspection item
5.1.1 Daily inspection...............................................................................................................................................72
5.1.2 Periodic inspection..........................................................................................................................................72
5.1.3 Daily and periodic inspection ..........................................................................................................................73
5.1.4 Checking the inverter and converter modules ................................................................................................74
5.1.5 Cleaning..........................................................................................................................................................75
5.1.6 Replacement of parts......................................................................................................................................75
5.1.7 Removal and reinstallation of the control circuit terminal block ......................................................................78
5.2 Measurement of main circuit voltages, currents and powers
5.2.1 Measurement of powers .................................................................................................................................81
5.2.2 Measurement of voltages ...............................................................................................................................81
5.2.3 Measurement of currents................................................................................................................................81
5.2.4 Example of measuring converter unit (FR-CC2) input power factor ...............................................................81
5.2.5 Measurement of converter output voltage (across terminals P and N)...........................................................81
5.2.6 Measurement of inverter output frequency .....................................................................................................82
5.2.7 Insulation resistance test using megger .........................................................................................................82
5.2.8 Withstand voltage test ....................................................................................................................................82
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