Torque Control Under Real Sensorless Vector Control And Vector Control - Mitsubishi Electric 800 Series Instruction Manual

Torque control under Real sensorless vector control and vector control

5.4
Torque control under Real sensorless
vector control and vector control
Purpose
To selection 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 commanded torque.
• 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.
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PARAMETERS
Parameter to set
Torque command
Speed limit
Torque control gain
adjustment
Torque detection filter
P.D400 to P.D402, Pr.801, Pr.803 to
P.G210, P.H704 Pr.806, Pr.1114
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
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