12 - 79
MELSEC-Q
12 CONTROL SUB FUNCTIONS
[2] Precautions during control
(1) A command in-position width check will not be carried out in the following
cases.
•
During deceleration by a stop command or sudden stop command.
•
During position control, the operation pattern is "continuous path control"
•
During speed control, or during the speed control of speed-position
switching or position-speed switching control.
Command in-position flag
[ Md. 31 Status: b2]
Speed to position switching
t
ON
Positioning
control start
Speed-position
switching
control start
Command in-position
width setting value
V
Execution of the command in-position width check
OFF
OFF
ON
Command in-position
width setting value
Execution of the command in-position
width check
Fig. 12.44 Command in-position width check
(2) The command in-position flag will be turned OFF in the following cases.
("0" will be stored in "
Md.31
Status: b2".)
•
At the positioning control start
•
At the speed control start
•
At the speed-position switching control, position-speed switching control
start
•
At the OPR control start
•
At the JOG operation start
•
At the inching operation start
•
When the manual pulse generator operation is enabled.
(3) The "
Pr.16
Command in-position width" and command in-position flag
(
Md.31
Status: b2) of the reference axis are used during interpolation
control.
To Next Page
Loading...
