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

Page: 187 / 610

4. HOW TO USE THE POINT TABLE
4 - 60
(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
0 r/min
Reverse rotation
ON
OFF
DOG (Proximity dog)
ZP
(Home position return completion) ON
OFF
ON
OFF
ON
OFF
ST1 (Forward rotation start)
ST2 (Reverse rotation start)
3 ms or shorter
Home position return speed
Deceleration time constant
Creep speed
Travel distance after
proximity dog
+
Home position
shift distance
Home position return
position data
Proximity dog
5 ms or longer
Acceleration time
constant
The setting value of [Pr. PT08 Home position return position data] is used as the position address at the
home position return completion.
4.4.9 Dog cradle type home position return
You can use the position, which is specified by the first Z-phase signal after the front end of a proximity dog
is detected, as the home position.
(1) Device/parameter
Set input devices and parameters as follows.
Item Used device/parameter Setting
Home position return mode
selection
MD0 (Operation mode selection 1) Switch on MD0.
DI0 (Point table No. selection 1) to
DI7 (Point table No. selection 8)
Switch off DI0 to DI7.
Dog cradle type home
position return
[Pr. PT04] _ _ _ 7: Select the dog cradle type.
Home position return
direction
[Pr. PT04]
Refer to section 4.4.1 (2) to select the home
position return direction.
Dog input polarity [Pr. PT29]
Refer to section 4.4.1 (2) to select the dog
input polarity.
Home position return speed [Pr. PT05]
Set the rotation speed until the dog is
detected.
Creep speed [Pr. PT06]
Set the rotation speed after the 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/deceleration time
constant
Point table No. 1
Use the acceleration/deceleration time
constant of point table No. 1.
Home position return position
data
[Pr. PT08]
Set the current position at the home position
return completion.
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