Mitsubishi MR-JE-40A - Dogless Z-Phase Reference Home Position Return Type

4. HOW TO USE THE POINT TABLE
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4.4.12 Dogless Z-phase reference home position return type
A position, which is shifted to by the home position shift distance from a position specified by the Z-phase
pulse right after the start of the home position return, is set as the home position.
(1) Device/parameter
Set input devices and parameters as follows.
Item Device/parameter to be used Setting
Home position return mode
selection
MD0 (Operation mode selection 1) Switch on MD0.
DI0 (Point table No. selection 1) to
DI4 (Point table No. selection 5)
Switch off DI0 to DI4.
Dogless Z-phase reference
home position return
[Pr. PT04]
_ _ _ A: Select the dogless type (Z-phase
reference).
Home position return
direction
[Pr. PT04]
Refer to section 4.4.1 (2) to select the home
position return direction.
Home position return speed [Pr. PT05]
Set the rotation speed specified until the Z-
phase is detected.
Creep speed [Pr. PT06]
Set the rotation speed specified after the Z-
phase is detected.
Home position shift distance [Pr. PT07]
Set this to shift the home position, which is
specified by the Z-phase signal.
Acceleration time
constant/deceleration time
constant of home position
return
Point table No. 1
The acceleration/deceleration time constant
of point table No. 1 is used.
Home position return position
data
[Pr. PT08]
Set the current position when the home
position return is complete.
(2) Timing chart
ON
OFF
MEND
(Travel completion)
ON
OFF
CPO
(Rough match)
ON
OFF
Servo motor
speed
MD0
(Operation mode
selection 1)
Forward rotation
Reverse rotation
ON
OFF
Z-phase
ZP
(Home position return
completion)
ON
OFF
ON
OFF
ON
OFF
ST1
(Forward rotation start)
ST2
(Reverse rotation start)
3 ms or shorter
Deceleration time constant
5 ms or longer
Acceleration
time constant
Home position return position data
Home position return speed
Home position shift distance
Creep speed
0 r/min
The setting value of [Pr. PT08 Home position return position data] is used as the position address at the
home position return completion.