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6 POSITIONING CONTROL
(c) When the proximity dog is set in the home position return direction, the
proximity dog is turned OFF during travel to reverse direction of home
position return, and the zero point is not passed, it continues to travel in the
reverse direction of home position return with home position return speed
until the zero point is passed. The zero point is passed again during
deceleration by zero point pass, the home position becomes this side
compared with the case to pass zero point at the time of the proximity dog
OFF.
V
Home position
return direction
Home position
return speed
Creep speed
Home position
Home position
return start
Home position
return speed
Proximity dog
Zero point
1)
2)
5)
3)
4)
Acceleration time Deceleration time
1) It travels to preset direction of home
position return with the home position
return speed.
2) A deceleration stop is made by the
proximity dog ON.
3) After a deceleration stop, it travels to
reverse direction of home position return
with the home position return speed.
4) If the zero point is passed by the
proximity dog OFF, a deceleration stop
is made.
5) After a deceleration stop, it travels to
direction of home position return with the
creep speed, and the home position
return ends with first zero point after the
proximity dog ON.