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II
CONTENTS
3.1.1 Leakage currents and countermeasures...................................................................................... 38
3.1.2 EMC measures............................................................................................................................. 40
3.1.3 Power supply harmonics .............................................................................................................. 42
3.2 Installation of power factor improving reactor ............................... 43
3.3 Power-off and magnetic contactor (MC).......................................... 44
3.4 Inverter-driven 400V class motor .................................................... 45
3.5 Precautions for use of the inverter .................................................. 46
3.6 Failsafe of the system which uses the inverter .............................. 48
4 PARAMETERS 51
4.1 Operation panel ................................................................................ 52
4.1.1 Names and functions of the operation panel ................................................................................ 52
4.1.2 Basic operation (factory setting) ................................................................................................... 53
4.1.3 Easy operation mode setting (easy setting mode) ....................................................................... 54
4.1.4 Change the parameter setting value ............................................................................................ 55
4.1.5 Setting dial push ........................................................................................................................... 55
4.2 Parameter list ................................................................................... 56
4.2.1 Parameter list ............................................................................................................................... 56
4.3 Adjust the output torque (current) of the motor............................. 73
4.3.1 Manual torque boost (Pr. 0, Pr. 46) ............................................................................................. 73
4.3.2 Large starting torque and low speed torque are necessary (General-purpose magnetic flux vector
control (Pr. 71, Pr. 80)) ................................................................................................................ 75
4.3.3 Slip compensation (Pr. 245 to Pr. 247)........................................................................................ 78
4.3.4 Stall prevention operation (Pr. 22, Pr. 23, Pr. 48, Pr. 66, Pr. 156, Pr. 157)................................. 79
4.4 Limit the output frequency.............................................................. 83
4.4.1 Maximum/minimum frequency (Pr. 1, Pr. 2, Pr. 18) .................................................................... 83
4.4.2 Avoid mechanical resonance points (frequency jumps) (Pr. 31 to Pr. 36)................................... 84
4.5 Set V/F pattern................................................................................. 85
4.5.1 Base frequency, voltage (Pr. 3, Pr. 19, Pr. 47)............................................................................ 85
4.5.2 Load pattern selection (Pr. 14) .................................................................................................... 87
4.6 Frequency setting by external terminals........................................ 89
4.6.1 Operation by multi-speed operation (Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239) ............ 89
4.6.2 Jog operation (Pr. 15, Pr. 16) ...................................................................................................... 91
4.6.3 Remote setting function (Pr. 59).................................................................................................. 93
4.7 Setting of acceleration/deceleration time and acceleration/
deceleration pattern........................................................................ 96