6 POSITIONING CONTROL

(b)If the home position return is executed in the proximity dog, it travels to reverse direction of home position return. If proximity dog turns OFF, a deceleration stop is made, it travels to direction of home position return again with the creep speed and the first zero point after proximity dog ON is home position.

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

 

V

Home position

Creep speed

 

with the creep speed, and the home

 

 

 

return direction

3)

 

 

position return ends with first zero

 

 

 

 

 

 

point after the proximity dog ON.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Home

 

Home position

 

 

 

 

 

position

 

 

 

 

 

 

 

return start

 

 

 

 

2)

 

 

 

 

 

 

 

 

1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Proximity dog

Zero point

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