Torque Control Under Real Sensorless Vector Control And Vector Control - Mitsubishi Electric FR-A820-00046 Instruction Manual

Parameters
5.4 Torque control under Real sensorless vector control and
vector control
Purpose
To select the torque command source and to
set the torque command value
To prevent the motor from overspeeding
To raise precision of torque control
To stabilize torque detection signal
5.4.1 Torque control
● Under torque control, the operation is controlled to output the torque as commanded.
● Motor rotation speed is steady when the motor output torque and load torque are balanced.
Thus, motor speed during torque control is determined by the load.
● Under torque control, motor speed accelerates so motor output torque does not exceed motor
load. In order to prevent the motor from overspeeding, set a speed limit. (Speed control is
performed instead of torque control during speed limit.)
● If speed limit is not set, speed limit value setting is regarded as 0 Hz and torque control is not
enabled.
FR-A800

Torque control under Real sensorless vector control and vector control

Parameter to set
Torque command
Speed limit
Torque control gain
adjustment
Torque detection filter
P.D400 to P.D402,
Pr. 803 to Pr. 806
P.G210
P.H410 to P.H412, Pr. 807 to Pr. 809,
P.H414 Pr. 1113
P.G213, P.G214, Pr. 824, Pr. 825,
P.G313, P.G314 Pr. 834, Pr. 835
P.G216, P.G316 Pr. 827, Pr. 837
Refer
to page
5-138
5-142
5-150
5-194
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