Mitsubishi Electric MELSERVO MR-J4-03A6-RJ, Instruction Manual

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4. HOW TO USE THE POINT TABLE
4 - 74
(b) About proximity dog type home position return using incremental linear encoder
POINT
To execute a home position return securely, start a home position return after
moving the axis to the opposite stroke end by jog operation, etc. of the
controller.
If the incremental linear encoder does not have a linear encoder home position
(reference mark), only the home position return type without using Z-phase can
be performed.
1) When the linear encoder home position (reference mark) exists in the home position return
direction
When an incremental linear encoder is used, the home position is the position per servo motor
revolution to the linear encoder home position (reference mark) passed through first after a home
position return start.
In the case of a dog type home position return, after the proximity dog signal rear end is detected,
the nearest home position reference position shifted by the home position shift distance is used
as the home position.
Set one linear encoder home position in the full stroke, and set it in the proximity dog signal
detection position.
Linear encoder home position Home position
Home position return speed
Creep speed
Home position return direction
ON
OFF
Proximity dog
signal
Servo motor
speed
Reference home
position
Machine position
0 r/min
Equivalent to one servo motor revolution
Equivalent to servo motor "n" times ro
Home position shift distance (Note)
Home position shift distance
Note. Home position shift distance can be changed with [Pr. PT07] and [Pr. PT69].
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