Yaskawa Sigma-5 User Manual: Design and Maintenance - Linear Motors MECHATROLINK-III Communications Reference - Manual (Page 221)

6 Utility Functions (Fn )
6-6
6.4 Origin Search (Fn003)
The origin search is designed to position the origin pulse position of the incremental linear scale (phase C) and
to clamp at the position.
This function is used when the servomotor needs to be aligned to the machine.
Motor speed at the time of execution: 15 mm/s
(1) Preparation
The following conditions must be met to perform the origin search.
• The write prohibited setting parameter (Fn010) must be set to Write permitted (P.0000).
• The main circuit power supply must be ON.
• All alarms must be cleared.
• The hardwire baseblock (HWBB) must be disabled.
• The servomotor power must be OFF.
CAUTION
• The forward run prohibited (P-OT) and reverse run prohibited (N-OT) signals are not effective in origin
search mode.