Chapter 5 Positioning Instructions
5 - 67
(c) Program Operation
•At the occurrence of the rising edge of the velocity to position transfer used as the velocity to
position transfer reference signal, the VTP instruction is executed.
•if presently under velocity control, the mode is changed to position control and the present position
is preset to 0 and position control is carried out until the target position. At this time, the target
position is classified as follows according to being in the indirect or direct start-up.
1) If presently in indirect start up, the target position of the step in operation becomes the target
position after transfer from velocity to position control.
2) If presently in direct start up, the target position value set up as the operand with the APM_DST
instruction becomes the target position after transfer from velocity to position control.
•When using this velocity/position transfer instruction, as shown in the sample program above, use
the indicator flag (X-axis: %KX6737, Y-axis: %KX6897) during velocity control to prevent
instruction from being executed during position operation.
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