Mitsubishi Electric MELSEC Q Series Programming Manual page 373

6 POSITIONING CONTROL
[Cautions]
(1) If the forward JOG start command (M3202+20n) and reverse JOG start command
(M3203+20n) turn on simultaneously for a single axis, the forward JOG operation
is executed.
When a deceleration stop is made by the forward JOG start command
(M3202+20n) OFF the reverse JOG operation is not executed even if the reverse
JOG start command (M3203+20n) is ON. After that, when the reverse JOG start
command (M3203+20n) turns off to on, the reverse JOG operation is executed.
V
Forward JOG
OFF
start command
(M3202+20n)
Reverse JOG
OFF
start command
(M3203+20n)
(2) If the JOG start command (M3202+20n/M3203+20n) turns on during deceleration
by the JOG start command OFF, after deceleration stop, JOG operation is not
executed.
After that, the JOG operation is executed by the JOG start command OFF to ON.
V
JOG start command OFF
Forward JOG operation
ON
ON
Reverse JOG start
command ignored
JOG operation
ON
6 - 186
t
Reverse JOG
operation
t