3
PRECAUTIONS FOR USE OF THE INVERTER
61
3 PRECAUTIONS FOR
USE OF THE
INVERTER
This chapter explains the precautions for use of this product.
Always read the instructions before using the equipment.
3.1 Electro-magnetic interference (EMI) and leakage currents ..62
3.2 Power supply harmonics .........................................................69
3.3 Power-OFF and magnetic contactor (MC) ..............................72
3.4 Countermeasures against deterioration of the 400 V class
motor insulation........................................................................73
3.5 Checklist before starting operation ........................................74
3.6 Failsafe system which uses the inverter ................................77