Dogless Z-Phase Reference Home Position Return Type - Mitsubishi Electric MELSERVO-J4 Instruction Manual

4. HOW TO USE THE POINT TABLE

4.4.12 Dogless Z-phase reference home position return type

Starting from the Z-phase pulse position after the start of the home position return, the position is shifted by
the home position shift distance. The position after the shifts is used as the home position.
(1) Device/parameter
Set input devices and parameters as follows.
Home position return mode
selection
Dogless Z-phase reference
home position return
Home position return
direction
Home position return speed
Creep speed
Home position shift distance
Home position return
acceleration/deceleration time
constant
Home position return position
data
(2) Timing chart
MD0
(Operation mode selection 1)
MEND (Travel completion)
CPO (Rough match)
ZP
(Home position return completion)
Forward rotation
Servo motor speed
0 r/min
Reverse rotation
Z-phase
ST1 (Forward rotation start)
ST2 (Reverse rotation start)
The setting value of [Pr. PT08 Home position return position data] is used as the position address at the
home position return completion.
Item Used device/parameter
MD0 (Operation mode selection 1)
DI0 (Point table No. selection 1) to
DI7 (Point table No. selection 8)
[Pr. PT04]
[Pr. PT04]
[Pr. PT05]
[Pr. PT06]
[Pr. PT07]
Point table No. 1
[Pr. PT08]
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Home position return speed
Acceleration time
constant
Home position return position data
3 ms or shorter
Home position shift distance
ON
OFF
ON
5 ms or longer
OFF
ON
OFF
Switch on MD0.
Switch off DI0 to DI7.
_ _ _ A: Select dogless Z-phase reference.
Refer to section 4.4.1 (2) to select the home
position return direction.
Set the rotation speed until the dog is
detected.
Set the rotation speed after the dog is
detected.
Set this item to shift the home position, which
is specified by the Z-phase signal.
Use the acceleration/deceleration time
constant of point table No. 1.
Set the current position at the home position
return completion.
Deceleration time constant
Creep speed
4 - 65
Setting