Speed/Torque Control Switching Mode (S/T) - Mitsubishi Electric MELSERVO-J5 User Manual

Ac servo system

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Speed/torque control switching mode (S/T)

Set [Pr. PA01.0] to "3" (Speed control mode and torque control mode).

Use LOP (Control switching) to switch between the speed control mode and the torque control mode with an external contact.

The control mode may be switched at any time.

LOP (Control switching)

Use LOP (Control switching) to switch between the speed control mode and the torque control mode with an external contact.

The following shows the relation between LOP and control modes.

The control mode may be switched at any time. The following shows a switching timing chart.

(Control switching)

Servo motor speed

(Analog torque command)

*1 When ST1 (Forward rotation start) and ST2 (Reverse rotation start) are switched off as soon as the mode is switched to the speed

control, the servo motor comes to a stop according to the deceleration time constant. A shock may occur at switching control modes.

Speed setting and torque limit in speed control mode

The specifications are the same as those described in the section for the speed control mode.

Page 96 Speed setting

Page 94 Torque limit

Control mode

Speed control mode

Torque control mode

Speed control

Torque control

Forward rotation in power running

Speed control

2 CONTROL MODE

2.3 Control mode [A]