Mitsubishi Melservo-J2-Super series Instruction Manual page 64

4. OPERATION AND FUNCTIONS
(2) About proximity dog type home position return using incremental linear scale
Serial I/F General-purpose pulse output
When an incremental linear scale is used, the home position is the position per motor encoder
resolution relative to the scale home position (reference mark) passed through first after a home
position return start.
In the case of a proximity dog type home position return, the nearest position after proximity dog OFF
is the home position.
Set one scale home position in the full stroke, and set it in the position that can always be passed
through after a home position return start.
Home position return
ON
Proximity dog
OFF
signal
Home position
reference position
Machine position
If a home position return is started at the position where the scale home position (reference mark)
does not exist in the home position return direction, a home position return error occurs in the
controller (the error definition changes depending on the controller type). When starting a home
position return at the position where the scale home position (reference mark) does not exist in the
home position return direction, move the axis up to the stroke end on the side opposite to the home
position return direction by jog operation, etc. of the controller once, then make a home position
return.
Home position return
i
ON
Proximity
OFF
dog
signal
Machine position
CAUTION
Home position return speed
Scale home position
Home position return speed
Jog operation
Stroke end Scale home position
Home position return enabled
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.
To execute a home position return securely, start a home position ret A
home position return cannot be made if the incremental linear scale does
not have a scale home position (reference mark). Always provide a scale
home position (reference mark). (One place in the full stroke)
Home position return direction
Creep speed
Equivalent to one motor encoder
revolution
Home position return direction
Creep speed
Home position return disabled area
4 - 9
Home position
Home position