5 speed/torque control change mode, Signals and wiring – MITSUBISHI ELECTRIC J2-JRSERIES MR-J2-03A5 User Manual

Page 56

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3. SIGNALS AND WIRING

3.4.5

Speed/torque control change mode

Set 0003 in parameter No. 0 to switch to the speed/torque control change mode.
(1) Control change (LOP)

Use control change (LOP) to switch between the speed control mode and the torque control mode from
an external contact. Relationships between LOP-SG status and control modes are indicated below:

(Note) LOP

Servo Control Mode

0

Speed control mode

1

Torque control mode

Note. 0: LOP-SG off (open)

1: LOP-SG on (short)

The control mode may be changed at any time. A change timing chart is shown below:

10V

0

ON

OFF

Torque

control mode

Servo motor speed

Control change (LOP)

(Note)

Speed

control mode

Speed

control mode

Analog torque
command (TC)

Load torque

Forward rotation in driving mode

Note: When the start signal (ST1

x ST2) is switched off as soon as the mode is changed to speed control,

the servo motor comes to a stop according to the deceleration time constant.

(2) Speed setting in speed control mode

As in Section 3.4.2 (1).

(3) Torque limit in speed control mode

As in Section 3.4.1 (2).

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