Mitsubishi Electric FR-D720 K Series Instruction Manual page 5

3.1.1 Leakage currents and countermeasures ...................................................................................... 40
3.1.2 EMC measures ............................................................................................................................. 42
3.1.3 Power supply harmonics............................................................................................................... 44
3.1.4 Harmonic suppression guideline in Japan .................................................................................... 45
3.2 Installation of power factor improving reactor................................ 47
3.3 Power-OFF and magnetic contactor (MC) ........................................ 48
3.4 Inverter-driven 400V class motor ..................................................... 49
3.5 Precautions for use of the inverter .................................................. 50
3.6 Failsafe of the system which uses the inverter............................... 53
4 PARAMETERS
4.1 Operation panel................................................................................. 56
4.1.1 Names and functions of the operation panel ................................................................................ 56
4.1.2 Basic operation (factory setting) ................................................................................................... 57
4.1.3 Easy operation mode setting (easy setting mode)........................................................................ 58
4.1.4 Changing the parameter setting value.......................................................................................... 59
4.1.5 Displaying the set frequency......................................................................................................... 59
4.2 Parameter list ................................................................................... 60
4.2.1 Parameter list................................................................................................................................ 60
4.3 Adjustment of the output torque (current) of the motor................. 77
4.3.1 Manual torque boost (Pr. 0, Pr. 46) ............................................................................................. 77
4.3.2 Acquiring large starting torque and low speed torque (General-purpose magnetic
flux vector control (Pr. 71, Pr. 80, Pr. 83, Pr. 84))........................................................................ 78
4.3.3 Slip compensation (Pr. 245 to Pr. 247)........................................................................................ 81
4.3.4 Stall prevention operation (Pr. 22, Pr. 23, Pr. 48, Pr. 66, Pr. 154, Pr. 156, Pr. 157) ................... 82
4.4 Limiting the output frequency ......................................................... 86
4.4.1 Maximum/minimum frequency (Pr. 1, Pr. 2, Pr. 18)..................................................................... 86
4.4.2 Avoiding mechanical resonance points (frequency jumps) (Pr. 31 to Pr. 36, Pr. 552) ................ 87
4.5 V/F pattern........................................................................................ 88
4.5.1 Base frequency, voltage (Pr. 3, Pr. 19, Pr. 47) ............................................................................ 88
4.5.2 Load pattern selection (Pr. 14) .................................................................................................... 90
4.6 Frequency setting by external terminals ........................................ 92
4.6.1 Operation by multi-speed operation (Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239)............. 92
4.6.2 Jog operation (Pr. 15, Pr. 16) ...................................................................................................... 94
4.6.3 Remote setting function (Pr. 59) .................................................................................................. 96
4.7 Setting of acceleration/deceleration time and acceleration/
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