6POSITIONING CONTROL

(2)Home position return retry function/dwell time at the home position return retry

(a)Valid/invalid of home position return retry is set.

(b)When the valid of home position return retry function is set, the time to stop at return of travel direction is set with dwell time at the home position return retry.

(c)Operation for the proximity dog type home position return by setting "valid" for home position return retry function is shown below.

Acceleration time

 

Deceleration time

The temporary stop is made during time

 

 

 

 

 

 

 

 

set in the "dwell time at the home

 

 

 

 

 

 

position return retry".

 

 

 

 

 

Home position

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5)

 

return direction

1)

 

 

 

2)

 

 

 

 

 

 

 

6)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Home

 

 

 

 

 

 

 

 

 

 

 

 

 

Home position

 

 

 

 

 

 

 

 

position

 

 

 

 

4)

 

 

return start

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

External limit switch

Proximity dog

Zero point

The temporary stop is made during time set in the "dwell time at the home position return retry".

1)It travels to preset direction of home position return.

2)If the external upper/lower limit switch turns OFF before the detection of proximity dog, a deceleration stop is made.

3)After a deceleration stop, the temporary stop is made during time set in the "dwell time at the home position return retry" and it travels to reverse direction of home position return with the home position return speed.

4)A deceleration stop is made by the proximity dog OFF.

5)After a deceleration stop, the temporary stop is made during time set in the "dwell time at the home position return retry" and it travels to direction of home position return.

6)Home position return ends.

Fig. 6.31 Operation for home position return retry function

(d)Possible/not possible of home position return retry function by the home position return method is shown below.

Home position return

Possible/not possible of home position

methods

return retry function

Proximity dog type

 

Count type

 

Data set type

 

Dog cradle type

 

Stopper type

 

Limit switch combined type

 

: Possible, : Not possible

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