Target Position Change Function - Mitsubishi Electric QD75MH1 User Manual

12 CONTROL SUB FUNCTIONS

12.7.5 Target position change function

(a) When the address after change is positioned away from the start point more than the positioning address:
(b) When the speed is changed simultaneously with changing the address:
(c) When the direction of the operation is changed:
The "target position change function" is a function to change a target position to a
newly designated target position at any timing during the position control (1-axis linear
control). A command speed can also be changed simultaneously.
The target position and command speed changed are set directly in the buffer
memory, and the target position change is executed by "
change request flag".
The following shows the details of the "target position change function".
[1] Details of control
[2] Precaution during operation
[3] Method of setting target position change function from PLC CPU
[1] Details of control
The following charts show the details of control of the target position change
function.
V
Target position change request
V
Target position change request
V
Address after
change
Target position change
request
Fig. 12.41 Target position change operation
Positioning address Address after change
Speed after
change
Speed before
change
Address after change
Positiioning address
Positioning address
12 - 79
MELSEC-Q
Cd.29
Target position
t
t
t