IAI America ERC2 - Manual (Page 89)

5. Explanation of Operating Functions
70
Position 1 50-mm
pitch
To front end
Last load
Zone output signal
The coordinate of the load immediately before the last load
is set as the + boundary.
5.3.10 Pitch Feed by Incremental Specification
A target position can be specified in the position table using an incremental travel. This function is useful in
operation involving multiple positioning points set apart by an equal distance (constant pitch feed).
(1) Operation example in the position number specification mode
The following example explains how to perform positioning at a 50-mm pitch, starting from position No. 1. In this
case, create the position table shown below. Whether the operation has completed is determined by the PLC by
keeping a count of individual movements. The zone signal can be used to double-check the completion of
operation.
Example of position table
Position
[mm]
Zone+
[mm]
Zone-
[mm]
Incremental Comment
* On the teaching pendant screen, this symbol indicates that
the data is specified in the incremental mode.