Mitsubishi Electric MELSEC-L LD75D, User Manual

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12.4
Functions to Limit the Control
Functions to limit the control include the "speed limit function", "torque limit function", "software stroke limit", and
"hardware stroke limit". Each function is executed by parameter setting or program creation and writing.
12.4.1
Speed limit function
The "speed limit function" limits the command speed to a value within the "speed limit value" setting range when the
command speed during control exceeds the "speed limit value".
The details shown below explain about the "speed limit function".
• Relation between the speed limit function and various controls
• Control precautions
• Setting method
(1) Relation between the speed limit function and various controls
The following table shows the relation of the "speed limit function" and various controls.

: Setting always required,

: Setting not required
*1
*1 Setting value is invalid. Use the initial values or setting values within a range where no error occurs.
Control type
Speed limit
function
Speed limit value
OPR control
Machine OPR control 
[Pr.8] Speed limit value
Fast OPR control

Major positioning
control
Position
control
1-axis linear control

2- to 4-axis linear interpolation control 
1-axis fixed-feed control 
2- to 4-axis fixed-feed control (interpolation)

2-axis circular interpolation control

3-axis helical interpolation control 
1- to 4-axis speed control 
Speed-position switching control,
Position-speed switching control

Other control
Current value changing

Setting value invalid
JUMP instruction, NOP instruction,
LOOP to LEND

Manual control
JOG operation, inching operation  [Pr.31] JOG speed limit value
Manual pulse generator operation

Setting value invalid