Yaskawa MP940 Reference Manual - Manual (Page 408)

MotionSuite™ MP940 Machine Controller Reference Manual Control Mode
11-11
Torque Control Mode
Outline
Use the torque control mode to generate a fixed torque, regardless of the
speed. Select this mode when applying a constant pressure to the molds of
plastic-forming machines such as extruders. This mode is used to output
the designated torque reference and speed limit command to the servo
amplifier when the torque control mode is selected.
Detailed Description
The order of operations in the torque control mode is shown below.
1. This mode is used to set motion parameters used in the torque control
mode. An example of parameter setting appears in the table below.
2. The torque control mode setting (TCON) is bit 1 of OWC000.
Name
Register
Number
Meaning
Setting
Example
Torque Reference Setting
(TREF) OWC01B Sets the torque reference in
units of 0.01%. 50.00
(50.00%)
Speed Limit Setting
(NLIM) OWC01C Sets the speed limit in units of
0.01%. 50.00
(50%)
Torque/Speed
(%)
0
Time (t)
Torque Reference
RUN
TCON
1. Setting of Motion Setting
Parameters
2. Torque Control Mode (TCON)
Setting
3. Start of Torque Control Mode Run
Torque reference and speed limit
reference output
Signifies system execution.
Signifies user setting.
4. End of torque control mode