Chapter 3 Before positioning
3- 24
3.1.13 Stroke Upper/Lower Limits
Positioning is subject to external input stroke limit (external input upper limit, external input lower limit)
and software stroke limit (software upper limit, software lower limit).
(1)
External input stroke upper/lower limits
• External input stroke limit is an external input connector of positioning; external input upper
limit/external input lower limit.
• It is used to immediately stop a positioning module before reaching to stroke limit/stroke end by
setting up stroke limits of positioning module inside stroke limit/stroke end of drives. At the moment,
if exceeding upper limit, it generates Error 492 while if exceeding lower limit, it generates Error 493.
• Note that positioning operation is not available if it stops out of positioning range.
If it stops due to external input stroke limit detection, move it into the controllable range of
positioning by manual operation (jog operation, inching operation, manual pulse generator
operation).
• External input stroke upper/lower limit error is detected by edge during positioning, so manual
operation is available although it exceeds stroke range.
(2) Stroke upper/lower limits
• Stroke upper/lower limit function does not execute positioning operation if it is operated out of ranges
of stroke upper/lower limits, which are set in positioning parameters.
• When it starts operation or is in operation, stroke upper/lower limits are checked.
Remark
• Software stroke upper/lower limits are not detected unless origin is determined.
To Next Page
Loading...
Need help?
General
