Home Position Return By The Scale Home Position Signal Detection Method - Mitsubishi Electric MELSEC Q Series Programming Manual

6 POSITIONING CONTROL

6.23.13 Home position return by the scale home position signal detection method

Home position
V
return direction
Home position
return start
The travel value in
this range is stored
in the monitor register
"home position return
re-travel value".
Fig. 6.44 Home position return operation by the scale home position signal detection method
(1) Scale home position signal detection method
Home position return is executed using home position signal (zero point). After
detecting the proximity dog, it makes to travel to reverse direction of home
position return. And the detecting position of home position signal (zero point)
is home position in this method.
(2) Home position return by the scale home position signal detection
method
Operation of home position return by the scale home position signal detection
method for setting the proximity dog in the home position return direction is
shown below.
Home position
return speed
Creep speed
4)
Home
position
3)
Proximity
dog
(3) Home position return execution
Home position return by the scale home position signal detection method is
executed using the servo program in Section 6.23.19.
Ver.! : Refer to Section 1.3 for the software version that supports this function.
1) It travels to preset direction of home
position return with the home position return
speed, and a deceleration stop is made by
1)
the proximity dog ON.
2) After a deceleration stop, it travels to
reverse direction of home position return
with the home position return speed.
3) Home position signal (zero point) is detected,
and a deceleration stop is made.
4) After a deceleration stop, it travels to preset
direction of home position return with the
creep speed, the home position return ends
with the position of home position signal
(zero point).
2)
The travel value in this range is stored in the monitor
register "travel value after proximity dog ON".
External limit switch
Zero point
6 - 232
Ver.!