Torque Limit Function - Mitsubishi Electric A1SD75P1-S3 User Manual

12 CONTROL AUXILIARY FUNCTIONS

12.4.2 Torque limit function

The "torque limit function" limits the generated torque to a value within the "torque limit
value" setting range when the torque generated in the servomotor exceeds the "torque
limit value".
The "torque limit function" protects the deceleration function, limits the power of the
operation pressing against the stopper, etc. It controls the operation so that
unnecessary force is not applied to the load and machine.
The details shown below explain about the "torque limit function".
(1) Relation between the torque limit function and various controls
Zero point
return
control
Main
positioning
control
Manual
control
– : Setting not required (Setting value is invalid. Use the initial values or setting values
* : Shows the torque limit value when "
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(1) Relation between the torque limit function and various controls
(2) Control details
(3) Precautions during control
(4) Setting the torque limit function
The following table shows the relation of the "torque limit function" and various
controls.
Control type
Machine zero point return control
High-speed zero pint return control
1-axis linear control
2-axis linear interpolation
control
1-axis fixed-dimension
Position
feed control
control
2-axis fixed-dimension
feed control (interpolation)
2-axis circular interpolation
control
Speed control
Speed/position changeover control
Current value change
Other
control
JUMP command
JOG operation
Manual pulse generator operation
: Set when required (Set to " – " when not used.)
within a range where no error occurs.)
Torque limit
function
–
–
New torque value" is set to "0".
Cd.30
12 - 24
MELSEC-A
Torque limit value *
Pr.18 Torque limit setting value
* After the " Pr.49 Creep
speed" is reached, this value
becomes the " Pr.56 Zero
point return torque limit value".
Setting value is invalid.
Pr.18 Torque limit setting value
Pr.18 Torque limit setting value