6POSITIONING CONTROL

(3)Dwell time setting at the home position return retry

Reverse operation by detection of the external upper/lower limit switch and dwell time function at the home position return start after stop by proximity dog OFF are possible with the dwell time at the home position return retry in the home position return retry function.

Dwell time at the home position return retry becomes valid at the time of deceleration stop of the following 2) and 4). (Dwell time operates with the same value.)

The temporary stop is made during time set in the "dwell time at the home

Home position position return retry". return direction

5)

6)

1)

2)

 

 

 

 

 

4)

Home

Home position

 

position

return start

 

 

 

3)

 

Proximity dog

External limit switch

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

3)After a stop, it travels to reverse direction of home position return with the home position return speed.

4)A deceleration is made by the proximity dog OFF and the temporary stop is made during time set in the "dwell time at the home position return retry".

5)After a stop, it travels to direction of home position return.

6)Home position return ends. At this time, the "dwell time at the home position return retry" is invalid.

Fig. 6.45 Dwell time setting at the home position return retry

[Cautions]

(1)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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