Speed Control ( ) - Mitsubishi Electric MELSEC Q Series Programming Manual

6 POSITIONING CONTROL

6.13 Speed Control ( )

Servo Positioning
instruction method
VF
—
VR
[Control details]
(1) Speed control for the specified axis is executed.
(2) Control includes positioning loops for control of servo amplifiers.
POINT
Refer to Section 7.7 for performing speed control that does not include positioning
loops without using the servo program.
(3) Speed control ( ) uses the VF (Forward) and VR (Reverse) servo instructions.
Common
Number of
control axes
1
(1) Controls the axis at the specified speed until the input of the stop command after
starting of the servo motors.
• VF .............. Forward direction start
• VR .............. Reverse direction start
(2) The operation of the current value is as follows.
(a) Q173DSCPU/Q172DSCPU
The operation is as follows depending on the status of the feed current value
update command (M3212+20n).
• ON ........... The feed current value is updated. The software stroke limit is
valid.
• OFF ......... "0" is stored in the feed current value.
(Note): When the operating system software is 00A, the operation is same as
(b).
Ver.! : Refer to Section 1.3 for the software version that supports this function.
QDS
Items set using MT Developer2
Arc
Ver.!
6 - 91
Parameter block Others
Speed
change
Valid
: Must be set
: Set if required