Mitsubishi Electric MELSEC-L02SCPU User Manual page 109

(c) Multiple instruction executions
If the execution command for JOG start instruction (IPJOG1) is turned on again while the axis is decelerating
due to the turning off of the JOG start instruction (IPJOG1), JOG operation cannot be performed.
V
JOG start instruction
OFF
execution command
Axis 1 BUSY
OFF
(SM1840)
(d) Limitation of JOG speed
If the JOG speed exceeds the set speed limit, the axis operates at the speed limit and an "Out of speed range"
warning (Axis 1 warning code: 1020) occurs. If the JOG speed is less than the bias speed at start, the same
warning occurs and the bias speed at start is applied.
(e) JOG speed 0
If the bias speed at start is 0 and JOG operation is started by setting 0 for the JOG speed, the special relays
and registers assume the following status. If the new speed value is set to other than 0 and the speed is
changed accordingly using the Speed change instruction (IPSPCHG1(P)), the Axis 1 speed 0 (SM1844) turns
off and JOG operation continues.
• Axis 1 speed 0 (SM1844): On
• Axis status: Stop
• Axis 1 axis operation status (SD1844): 2 (In JOG control)
• Axis 1 busy (SM1840): On
If the bias speed at start is other than 0, changing the JOG speed to 0 generates an "Out of speed range"
warning (Axis 1 warning code: 1020) and the axis operates at the bias speed at start.
(f) Speed change
The speed cannot be changed while the axis is decelerating.
(g) Forward/reverse switching
To switch between forward and reverse directions, check that the Axis 1 busy (SM1840) is off and then turn on
the execution command for JOG start instruction (IPJOG1). While the Axis 1 busy (SM1840) is on,
establishment of the execution command for JOG start instruction (IPJOG1) is ignored.
ON
ON
CHAPTER 7 POSITIONING FUNCTION
JOG start instruction
is ignored.
t
7
107