Omron CP1E - INTRODUCTION Introduction Manual page 147

Origin Search
An accurate origin search that makes use of various I/O signals (origin proximity
input signal, origin input signal, positioning completed signal, error counter reset
output, etc.) can be executed with a single instruction.
Origin proximity input
Contact 0.02
Origin input
Contact 0.06
Pulse
frequency
CCW
Origin Search Method
Search direction
Detection method
Search operation
Operating mode
Positioning
Common settings for the positioning operations are as follows:
• Target frequency 50kHz
• Acceleration/deceleration ratio 2000Hz/4ms
• Initial frequency 0Hz
Point A
CCW
-1000
(1) After completion of the origin search, the equipment will be positioned to point
A (-1000) by absolute pulse specification (absolute coordinate system).
(2) After positioning to point A, the equipment will be positioned to point B
(100000) by absolute pulse specification (absolute coordinate system).
(3) Positioning of points A and B are repeated. Because absolute pulse
specification is used, the positioning SV for (3) will be the same as for (1).
Search high speed
10kHz
Search acceleration ratio
2000Hz/4ms
Setting
CW Origin search is executed in the CW direction.
Methd 0 Reads the first origin input signal after an OFF-ON-OFF
sequence of the origin proximity input signal.
Invers 1 Reverses direction on a limit input, and continues the origin
search.
Mode 1 Executes an error counter reset output when the origin is
detected. Positioning completed input will not be used.
2
Origin
1
3
A-4 CP1L Programming Examples
Search deceleration ratio
2000Hz/4ms
Search proximity speed
1000Hz
CW
Description
Point B
CW
100000
SYSMAC CP1L/CP1E Introduction Manual
A
145