Home Position Return - Mitsubishi Electric FATEC MELSEC iQ-R Training Manual

6.6.3

Home position return

This program is designed for home position return.
The home position return operation for each axis is as follows.
Axis 1:
Axes 2 and 3: Proximity dog method
Axes 2: home position -5 mm
Start
point
(1) Control data
[Cd.3] Positioning start No.
POINT
When the home position return command input turns on, the module FB "M+RD77_
StartPositioning" writes the positioning start No.
(2) Output Signal
Positioning start signal
POINT
When the home position return command input turns on, the module FB "M+RD77_
StartPositioning" turns on the positioning start signal.
(3) Program example
[1] Home position return condition item
Condition item
Home position return
command input
Data set method
The point where home position return is executed is consider as the home
position (-5 mm).
After starting, the motor rotates in the home position return direction, and the
rotation is complete when the home position dog changes from ON to OFF.
Dog
-150
-5 (mm)
Item
Axis 1
4300
Item
Axes 3: home position 0 mm
-100 -50
Buffer memory address
Axis 2 Axis 3
4400 4500
Axis 1
Y10
Axis 1
6-22
Start point
Dog
150 (mm)
0 50 100
Setting value
9001 (Machine home
position return)
Axis 2
Y11
Axis 2
M1020
Axis 3
Y12
Axis 3