Dog Cradle Type Homing - Mitsubishi Electric MR-JE-*C Instruction Manual

12. WHEN USING WITH A GENERAL-PURPOSE INTERFACE

12.4.11 Dog cradle type homing

A position, which is specified by the first Z-phase signal after the front end of the proximity dog is detected, 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: -8
Address decreasing direction: -40
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.
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Setting