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

Page: 260 / 610

5. HOW TO USE THE PROGRAM
5 - 53
5.4.10 Dog type last Z-phase reference home position return
After the front end of a proximity dog is detected, the position is shifted away from the proximity dog at the
creep speed in the reverse direction and then specified by the first Z-phase signal. The position of the first Z-
phase signal is used as the home position.
(1) Device/parameter
Set input devices and parameters as shown below.
Item Used device/parameter Setting
Automatic operation mode of
the program method
MD0 (Operation mode selection 1) Switch on MD0.
Dog type last Z-phase
reference home position
return
[Pr. PT04]
_ _ _ 8: Select the dog type (front end detection/Z-
phase reference).
Home position return
direction
[Pr. PT04]
Refer to (2) of section 5.4.1 to select the home
position return direction.
Dog input polarity [Pr. PT29]
Refer to (2) of section 5.4.1 to select the dog input
polarity.
Home position return speed [Pr. PT05]
Set the rotation speed specified until a dog is
detected.
Creep speed [Pr. PT06]
Set the rotation speed specified after a dog is
detected.
Home position shift distance [Pr. PT07]
Set this item to shift the home position, which is
specified by the Z-phase signal.
Home position return
acceleration time constant
[Pr. PC30]
The acceleration time constant set for [Pr. PC30]
is used.
Home position return
deceleration time constant
[Pr. PC31]
The deceleration time constant set for [Pr. PC31]
is used.
Home position return position
data
[Pr. PT08]
Set the current position at the home position return
completion.
Program
DI0 (Program No. selection 1) to
DI7 (Program No. selection 8) Select a program containing a "ZRT" command,
which performs the home position return.
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