7.2
Motion Command Details
7-25
[ e ] C Pulse Only Method (OW

3C = 11)
z
Operation after Zero Point Return Starts
Travel is started at the creep speed in the direction specified by the sign of the creep speed. When the
rising edge of the phase-C pulse is detected, positioning is performed at the positioning speed.
When the positioning has been completed, a machine coordinate system is established with the final
position as the zero point.

The moving amount after the phase-C pulse is detected is set in the Home Offset. The positioning
speed is set in the Speed Reference.

If an OT signal is detected during creep speed operation, an OT alarm will not occur, the direction
will be reversed, and a search will be made for the phase-C pulse.

If an OT signal is detected during positioning speed operation, an OT alarm will occur.
OT Signal Detected during Creep Speed Operation
* 1. The SERVOPACK P-OT signal.
* 2. The SERVOPACK N-OT signal.

The stopping method when the OT signal is detected depends on the setting of SERVO-
PACK parameters.
z
Setting Parameters
Phase-C pulse
NOT
*2
POT
*1
Start Zero Point
Creep Speed
(OL40)
Positioning Speed
(OL10)
Home Offset
(OL42)
Phase-C pulse
NOT
*2
POT
*1
Start
Zero Point
Positioning Speed
(OL10)
Home Offset
(OL42)
Creep Speed
(OL40)
Creep Speed
(OL40)
Parameter Name Setting
OW

3C
Home Return Type
11: C Pulse Only Method
OL

10
Speed Reference
Set the positioning speed to use after detecting the phase-C pulse. The sign
is ignored.
The travel direction will depend on the sign of the Home Offset.
OL

40
Creep Speed
Set the speed to use when starting a zero point return. The travel
direction will depend on the sign of the creep speed.
OL

42
Home Offset
Set the travel distance from the point where a phase-C pulse is detected.
The travel direction will depend on the sign.
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