Mitsubishi Electric FR-A720-0.4K Instruction Manual page 5

2.5.7 Connection of power regeneration converter (MT-RC)............................................................ 49
2.5.8 Connection of the power factor improving DC reactor (FR-HEL) ............................................ 49
3 PRECAUTIONS FOR USE OF THE INVERTER
3.1 EMC and leakage currents ................................................................................52
3.1.1 Leakage currents and countermeasures ................................................................................. 52
3.1.2 EMC measures ........................................................................................................................ 54
3.1.3 Power supply harmonics.......................................................................................................... 56
3.1.4 Harmonic Suppression Guidelines .......................................................................................... 57
3.2 Installation of a reactor......................................................................................60
3.3 Power-off and magnetic contactor (MC) ..........................................................61
3.4 Inverter-driven 400V class motor......................................................................62
3.5 Precautions for use of the inverter...................................................................63
3.6 Failsafe of the system which uses the inverter...............................................65
4 PARAMETERS
4.1 Operation panel (FR-DU07) ...............................................................................68
4.1.1 Parts of the operation panel (FR-DU07) .................................................................................. 68
4.1.2 Basic operation (factory setting) .............................................................................................. 69
4.1.3 Changing the parameter setting value..................................................................................... 70
4.1.4 Displaying the set frequency.................................................................................................... 70
4.2 Parameter List ....................................................................................................71
4.2.1 Parameter list........................................................................................................................... 71
4.3 Control mode ..................................................................................................... 88
4.3.1 What is vector control? ........................................................................................................... 89
4.3.2 Change the control method (Pr. 80, Pr. 81, Pr. 451, Pr. 800)................................................. 92
4.4 Speed control by Real sensorless vector control, vector control................ 96
4.4.1 Setting procedure of Real sensorless vector control (speed control) .................................... 98
4.4.2 Setting procedure of vector control (speed control) ............................................................... 99
4.4.3 Torque limit level setting for speed control
(Pr. 22, Pr. 157, Pr. 803, Pr. 810 to Pr. 817, Pr. 858, Pr. 868, Pr. 874) .............................. 100
4.4.4 To perform high accuracy/fast response operation (gain adjustment of Real
sensorless vector control and vector control) (Pr. 818 to Pr. 821, Pr. 830,
Pr. 831, Pr. 880)
4.4.5 Speed feed forward control, model adaptive speed control (Pr. 828, Pr. 877 to Pr. 881) ... 112
4.4.6 Torque biases (Pr. 840 to Pr. 848) ...................................................................................... 114
4.4.7 Prevent the motor from overrunning (Pr. 285, Pr. 853, Pr. 873) .......................................... 117
II
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