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Module Operation
4-3
programmed velocity data. Use the Jog+ or Jog– to initiate and stop
the motion.
IMPORTANT
Turning the appropriate bit on will cause the axis to
move. Turning it off causes the axis to decelerate and
stop.
Origin (Home) Search Sequence of Operation
Information on this subject is contained in Chapter 4 of this manual,
within the topic, “Find Home +/(CW), Find Home –/(CCW)”. Note that
the way in which a search is carried out if a home proximity limit
switch is present is different from the sequence when a home
proximity limit switch is not present. The differences are detailed in
Chapter 4.
Resetting the Current Absolute Position
In the event that an “Invalid Position” (input word 0 bit 10 is false),
occurs while in command mode, and no position error actually exists,
a command to “preset position” assigns a predetermined position
value as the absolute position. This establishes the current absolute
position of the axis, and allows subsequent absolute moves to take
place. A typical ladder diagram showing the command to “preset
position” is provided in rung 2:3 of the “Program Listing for Sample
Move” in Chapter 5 of this manual.
Publication 999-121 - December 1999