7. POSITIONING CONTROL
7 − 20
Control with INC-1 (incremental method)
(1) Positioning control of a designated travel value from the current stop position.
(2) The travel direction is designated by the sign of the travel value, as follows:
• Positive travel value .............forward direction (increased address)
• Negative travel value............reverse direction (decreased address)
Travel direction for
negative sign
Travel direction for
positive sign
Reverse
travel
Forward
direction
Current stop position
The travel direction is shown below if the current stop address is -3000, and
the travel value is -5000.
0-8000
Current stop position
Travel value
=
-5000
-3000 -2000 -1000
Home position
Fig.7.2 Positioning by Incremental Method
Example
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