Omron OMNUC W R88A-NCW152-DRT, Manual

Page: 69 / 292

5 Parameter Settings
5.3.2 Origin Search Parameters
5-16
5
Type 3
This origin search type returns to the origin using the phase Z pulse of the encoder only. The
outline of the operation is as follows:
1. The axis travels in the direction specified as origin search direction in the Origin Search
Function Selection (Pn801) at the Origin Search Proximity Speed (Pn803).
2. When the first phase Z pulse of the encoder is detected, the axis decelerates, and travels
at the Origin Search Compensation Speed (Pn804).
3. The axis travels the Origin Compensation Value (Pn805) from the position where the
phase Z pulse was detected, and that position becomes the origin.
Origin area
Phase Z pulse
Speed
Time
Origin compensation value
(Pn805)
Origin search compensation speed
(Pn804)
Origin search proximity speed
(Pn803)
Machine coordinate
system origin