YASKAWA SVC User Manual page 178


HOME Only (OW3C = 15)
 Operation after Origin Return Starts
1.
Travel is started at the creep speed in the direction determined by the sign of the creep
speed.
2.
When the rising edge of the HOME signal is detected, positioning will be performed at
the positioning speed.
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.
• Normal Execution
Start
HOME signal
*3
N-OT
• Overtravel Signal Detected during Travel at the Creep Speed
HOME LS signal
*3
N-OT
*1.
SERVOPACK EXT1 signal.
*2.
SERVOPACK P-OT signal.
*3.
SERVOPACK N-OT signal.
1. The travel distance after the HOME signal is detected is the value of the Zero Point
Information
Return Travel Distance parameter. The positioning speed is the value of the Speed
Reference Setting parameter.
2. If an overtravel signal is detected during motion at the creep speed, an overtravel
alarm will not occur. The direction will be reversed, and a search will be performed for
the HOME signal.
3. If an overtravel signal is detected when the axis is moving at the positioning speed, an
overtravel alarm will occur.
4. The stop method when an overtravel signal is detected depends on the SERVOPACK
parameter settings.
Speed Reference Setting
(OL
Creep Speed
Zero Point Return
Travel Distance
(OL 40)
(OL 42)
*1
Speed Reference Setting
(OL
Zero Point Return
Travel Distance
(OL
*1
4.2 Motion Command Details
4.2.3 ZRET (Zero Point Return)
10)
Origin
10)
Creep Speed
(OL 40)
42)
Origin
Start
Creep Speed
(OL 40)
*2
P-OT
P-OT *2
4
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