Dog Type Last Z-Phase Reference Home Position Return - Mitsubishi Electric MR-JE-*C Instruction Manual

12. WHEN USING WITH A GENERAL-PURPOSE INTERFACE

12.4.12 Dog type last Z-phase reference home position return

After the front end of the 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 set as the home position.
(1) Device/parameter
Set input devices and parameters as follows:
Item
Homing mode selection
Home position return
direction
Dog input polarity
Home position return speed
Creep speed
Home position shift distance
Acceleration time constant/
deceleration time constant of
homing
Homing position data
Device/parameter to be used
MD0 (Operation mode selection 1)
DI0 (Point table No. selection 1) to DI7 (Point
table No. selection 8)
[Pr. PT45 Home position return types]
[Pr. PT29 Function selection T-3]
[Pr. PT05 Home position return speed]
[Pr. PT06 Creep speed]
[Pr. PT07 Home position shift distance], [Pr.
PT57 Home position shift distance (extension
parameter)]
[Pr. PT61 Home position return acceleration
time constant] or [Pr. PT62 Home position
return deceleration time constant]
[Pr. PT08 Home position return position data],
[Pr. PT58 Home position return position data
(extension parameter)]
Switch on MD0.
Switch off DI0 to DI7.
Select the homing direction with [Pr. PT45]. The
setting is shown as follows:
Address increasing direction: -9
Address decreasing direction: -41
Refer to section 12.4.1 (2) (b) to select the dog input
polarity.
Set the rotation speed until a dog is detected.
Set the rotation speed after a dog is detected.
Set this to shift the home position, which is specified
by the Z-phase signal.
The acceleration/deceleration time constant of [Pr.
PT61] or [Pr. PT62] is used.
Set [Pr. PT60 Function selection T-8] to select the
parameters to be used.
Set the current position at the time of homing
completion.
12 - 41
Setting