6 POSITIONING CONTROL

(d)When it starts in the proximity dog, the zero point is not passed at the time of the proximity dog is turned OFF during travel to reverse direction of home position return, it continues to travel 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.

Acceleration time

 

Deceleration time

 

1)

It travels to preset reverse direction of

 

 

 

home position return with the home

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

position return speed.

 

 

 

 

 

2)

If the zero point is passed by the

 

 

 

 

 

 

proximity dog OFF, a deceleration

 

 

 

 

 

 

stop is made.

 

 

 

 

 

3)

After a deceleration stop, it travels to

 

 

 

 

 

 

direction of home position return with

 

Home position

 

 

the creep speed, and the home

V

Creep speed

 

position return ends with first zero

return direction

 

 

3)

 

 

point after the proximity dog ON.

 

 

 

 

 

Home position

2)

1)

 

Home position

Home position

return start

return speed

 

Proximity dog

 

Zero point

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