Mitsubishi Electric Q172CPU Programming Manual page 485

8 AUXILIARY AND APPLIED FUNCTIONS
(4) 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
Home position
V
return direction
2)
Creep speed
3)
Home position
return speed
Proximity dog
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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
the creep speed, and the home
position return ends with first zero
point after the proximity dog ON.
Home position
1)
Home position
return start
Zero point