YASKAWA SVC User Manual page 171

4.2 Motion Command Details
4.2.3 ZRET (Zero Point Return)
 Setting Parameters
Register Address

OW

OW

OL

OW

OL

OL

OL
 C Pulse (OW3C = 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.
N-OT
4-28
Name
Zero Point Return
3C
Method
Zero Point Return
09 Bit 3
Direction Selection
Speed Reference Set-
10
ting
18 Override
3E Approach Speed
40 Creep Speed
Zero Point Return
42
Travel Distance
Origin
Zero Point Return
Travel Distance
(OL
Creep Speed
(OL
*2
*1.
SERVOPACK P-OT signal.
*2.
SERVOPACK N-OT signal.
2: DEC1 + ZERO signal
Set the origin return direction.
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.
This parameter allows the travel speed to be changed without
changing the value of OL10. 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
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.
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.
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.
42)
40)
Approach Speed
(OL 3E)
Phase-C pulse
Setting Details
Start
*1
P-OT