4.2 Motion Command Details
4.2.3 ZRET (Zero Point Return)
4-28
Setting Parameters
C Pulse (OW3C = 3)
Operation after Origin Return Starts
1.
Travel is started at the approach speed in the direction that is specified in the parame-
ters.
2.
When the rising edge of the phase-C pulse is detected, the speed will be reduced to the
creep speed and positioning will be performed.
3.
When the positioning operation has been completed, the machine coordinate system is
established with the position at the end of the positioning operation as the origin.
*1. SERVOPACK P-OT signal.
*2. SERVOPACK N-OT signal.
Register Address Name Setting Details
OW
3C
Zero Point Return
Method
2: DEC1 + ZERO signal
OW
09 Bit 3
Zero Point Return
Direction Selection
Set the origin return direction.
OL
10
Speed Reference Set-
ting
Set the speed at which to begin the origin return operation.
Only a positive value can be set. A negative value will result in
an error.
OW
18 Override
This parameter allows the travel speed to be changed without
changing the value of OL10. Set the value as a percent-
age of the Speed Reference Setting. This parameter can be
changed during operation.
Setting range: 0 to 32,767 (0% to 327.67%)
Setting unit: 1 = 0.01%
Example: Setting for 50% = 5,000
OL
3E Approach Speed
Set the speed to use after passing the DEC1 signal.
Only a positive value can be set. A negative value will result in
an error.
OL
40 Creep Speed
Set the speed to use after detecting the ZERO signal after the
DEC1 signal is detected.
Only a positive value can be set. A negative value will result in
an error.
OL
42
Zero Point Return
Travel Distance
Set the travel distance from the point where the ZERO signal is
detected after passing the DEC1 signal.
If the sign is positive, the axis will move in the origin return
direction.
If the sign is negative, the axis will move away from the origin
return direction.
N-OT
*2
P-OT
*1
(OL40)
(OL42)
(OL3E)
Origin
Start
Zero Point Return
Travel Distance
Creep Speed
Approach Speed
Phase-C pulse
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