
Parker Hannifin
Making Motion 103
At one second (t
0
+ 1.0 sec.), the axis is commanded to decrease
speed to the new velocity. See Figure 8 for the velocity profile.
Mo
tion ends at t
1.
Figure 8 Change in JOG VEL Value “On the Fly”
Example 3
To illustrate sequential jog moves, two axes are attached to the
same program. The program moves each axis an incremental
distance of 10 units using two separate moves. The program waits
until the Jog Active Bit (Bit792) is off, indicating that Axis X has
finished its move, after which time the Y axis is commanded to move
to its incremental position. Figure 9 shows the velocity profile of this
ex
ample.
JOG ACC X1000 Y500
JOG DEC X1000 Y500
JOG VEL X25 Y50
JOG INC X10
INH -792
JOG INC Y10
Figure 9 Velocity Profile of Sequential Jog Moves
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