Mitsubishi Electric FR-E720-008 Instruction Manual page 5

3.1.1 Leakage currents and countermeasures ...................................................................................... 42
3.1.2 EMC measures ............................................................................................................................. 44
3.1.3 Power supply harmonics............................................................................................................... 46
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 ............................... 52
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 Setting dial push ........................................................................................................................... 59
4.2 Parameter list.................................................................................... 60
4.2.1 Parameter list................................................................................................................................ 60
4.3 Control mode .................................................................................... 81
4.3.1 Changing the control method (Pr. 80, Pr. 81, Pr. 800) ................................................................ 82
4.4 Adjustment of the output torque (current) of the motor................. 83
4.4.1 Manual torque boost (Pr. 0, Pr. 46) ............................................................................................. 83
4.4.2 Advanced magnetic flux vector control (Pr. 71, Pr. 80, Pr. 81, Pr.89, Pr. 800) .......................... 85
4.4.3 General-purpose magnetic flux vector control (Pr. 71, Pr. 80, Pr. 81, Pr. 800) ........................... 88
4.4.4 Slip compensation (Pr. 245 to Pr. 247) ....................................................................................... 90
4.4.5 Stall prevention operation (Pr. 22, Pr. 23, Pr. 48, Pr. 66, Pr. 156, Pr. 157, Pr. 277) ................... 91
4.5 Limiting the output frequency ......................................................... 95
4.5.1 Maximum/minimum frequency (Pr. 1, Pr. 2, Pr. 18)..................................................................... 95
4.5.2 Avoiding mechanical resonance points (frequency jumps) (Pr. 31 to Pr. 36) .............................. 96
4.6 V/F pattern........................................................................................ 97
4.6.1 Base frequency, voltage (Pr. 3, Pr. 19, Pr. 47) ............................................................................ 97
4.6.2 Load pattern selection (Pr. 14) .................................................................................................... 99
4.7 Frequency setting by external terminals ...................................... 101
4.7.1 Operation by multi-speed operation (Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239)........... 101
4.7.2 Jog operation (Pr. 15, Pr. 16) .................................................................................................... 103
4.7.3 Remote setting function (Pr. 59) ................................................................................................ 105
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