16.7.3 Count type home position return
In the count type home position return, after the proximity dog front end is detected, the motor travels the
distance set with [Pr. PT09 Travel distance after proximity dog]. Then, the position specified by the first Z-
phase signal is used as the home position. Therefore, when DOG (Proximity dog) is on for 10 ms or longer,
the proximity dog length has no restrictions. When the required proximity dog length for using the dog type
home position return cannot be reserved, or when DOG (Proximity dog) is entered electrically from PC or
PLC...etc or the like, use the count type home position return.
(1) Device/parameter
Set input devices and parameters as follows.
Home position return mode
selection
MD0 (Operation mode selection 1)
DI0 (Point table No. selection 1) to
DI7 (Point table No. selection 8)
Count type home position
return
_ _ _ 0: Select the count type.
Home position return
direction
Refer to section 4.4.1 (2) to select the home
position return direction.
Refer to section 4.4.1 (2) to select the dog
input polarity.
Home position return speed
Set the rotation speed until the dog is
detected.
Set the rotation speed after the dog is
detected.
Home position shift distance
Set this item to shift the home position
starting at the first Z-phase signal after
passage of proximity dog front end and
motion over the specified travel distance.
Travel distance after
proximity dog
Set the travel distance after passage of
proximity dog front end.
Home position return
acceleration/deceleration time
constant
Use the acceleration/deceleration time
constant of point table No. 1.
Home position return position
data
Set the current position at the home position
return completion.
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