II
3.1.1 Leakage currents and countermeasures ................................................................................. 44
3.1.2 EMC measures........................................................................................................................ 46
3.1.3 Power supply harmonics ......................................................................................................... 48
3.1.4 Harmonic suppression guideline .............................................................................................49
3.2 Installation of a reactor ..................................................................................... 52
3.3 Power-OFF and magnetic contactor (MC) ....................................................... 52
3.4 Inverter-driven 400V class motor ..................................................................... 53
3.5 Precautions for use of the inverter .................................................................. 54
3.6 Failsafe of the system which uses the inverter .............................................. 56
4 PARAMETERS 59
4.1 Operation panel (FR-DU07) ............................................................................... 60
4.1.1 Component of the operation panel (FR-DU07)........................................................................ 60
4.1.2 Basic operation (factory setting) .............................................................................................. 61
4.1.3 Easy operation mode setting (easy setting mode) .................................................................. 62
4.1.4 Changing the parameter setting value..................................................................................... 63
4.1.5 Displaying the set frequency ................................................................................................... 63
4.2 Parameter list ..................................................................................................... 64
4.2.1 Parameter list .......................................................................................................................... 64
4.3 IPM motor control <IPM>.................................................................................. 77
4.3.1 Setting procedure of IPM motor control <IPM> ...................................................................... 77
4.3.2 Initializing the parameters required to drive an IPM motor (Pr.998) <IPM> ........................... 80
4.3.3 IPM motor test operation (Pr.800) <IPM>............................................................................... 82
4.3.4 Adjusting the speed control gain (Pr.820, Pr.821) <IPM> ...................................................... 84
4.4 Adjustment of the output torque (current) of the motor ............................... 87
4.4.1 Manual torque boost (Pr. 0, Pr. 46) <V/F> ............................................................................. 87
4.4.2 Simple magnetic flux vector control (Pr.80, Pr.90) <S MFVC> .............................................. 89
4.4.3 Slip compensation (Pr. 245 to Pr. 247) <V/F><S MFVC> ...................................................... 90
4.4.4 Stall prevention operation
(Pr. 22, Pr. 23, Pr. 48, Pr. 49, Pr. 66, Pr. 148, Pr. 149, Pr. 154, Pr. 156, Pr. 157) ................. 91
4.5 Limiting the output frequency ......................................................................... 96
4.5.1 Maximum/minimum frequency (Pr. 1, Pr. 2, Pr. 18) ............................................................... 96
4.5.2 Avoiding mechanical resonance points (Frequency jump) (Pr. 31 to Pr. 36) ......................... 97
4.6 V/F pattern ......................................................................................................... 98
4.6.1 Base frequency, voltage (Pr. 3, Pr. 19, Pr. 47) <V/F><S MFVC> .......................................... 98
4.6.2 Load pattern selection (Pr. 14) <V/F> .................................................................................. 100
4.6.3 Adjustable 5 points V/F (Pr. 71, Pr. 100 to Pr. 109) <V/F>................................................... 101
4.7 Frequency setting by external terminals ...................................................... 102