YASKAWA SVC - Page 169

4.2 Motion Command Details
4.2.3 ZRET (Zero Point Return)
4-26
 ZERO Signal (OW3C = 1)
 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 ZERO signal 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 EXT1 signal.
*2. SERVOPACK P-OT signal.
*3. SERVOPACK N-OT signal.
OW18 Override
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
OL
3E Approach Speed
Set the speed to use after detecting 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 first phase-C pulse
after the DEC1 signal is passed. 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 first phase-C
pulse is detected after passing the DEC1 signal.
If the sign is positive, the axis will move towards the origin
return direction for the zero point return travel distance.
If the sign is negative, the axis will move away from the origin
return direction.
The travel distance after detecting the ZERO signal is set in the OL42 setting parameter
(Zero Point Return Travel Distance).
If an overtravel signal is detected during the origin return operation, an overtravel alarm will occur.
Continued from previous page.
Register Address Name Setting Details
N-OT
*3
P-OT
*2
(OL40)
(OL3E)
(OL42)
Origin
Start
Zero Point Return Travel
Distance
Creep Speed
Approach Speed
ZERO signal
*1
Important