Individual Start - Mitsubishi Electric MELSEC Q Series Programming Manual

6 POSITIONING CONTROL

6.21.2 Individual start

[Control details]
POINT
Start to outside the range of stroke limit of fixed parameter cannot be executed.
However, JOG operation is possible in the direction from outside the stroke limit
range to back inside the stroke limit range.
Stroke limit lower
. . . Does not start
For a degree axis, depending on the stroke limit setting, the direction that can
return the axis into the stroke limit range is different.
• When upper stroke limit value > lower stroke limit value
When "Feed current value > upper stroke limit value", movement in the negative
direction is possible.
When "Feed current value < lower stroke limit value", movement in the positive
direction is possible.
• When upper stroke limit value < lower stroke limit value
Movement in both the positive and negative direction is possible.
JOG operation for the specified axes is started.
JOG operation is executed by the following JOG start commands:
• Forward JOG start command (M3202+20n)
• Reverse JOG start command (M3203+20n)
(1) JOG operation continues at the JOG speed setting register (D640+2n, D641+2n)
value while the JOG start command turns on, and a deceleration stop is made by
the JOG start command OFF.
Control of acceleration/deceleration is based on the data set in JOG operation
data.
JOG start command
(M3202+20n/M3203+20n)
JOG operation for axis for which JOG start command is turning on is executed.
Stroke limit upper
. . . Start
V
Acceleration based
on JOG operation
data
ON
OFF
6 - 184
. . . Does not start
. . . Start
JOG operation speed
Deceleration stop based
on JOG operation data
t