Mitsubishi Electric MELSERVO MR-J4-A-RJ Series, Instruction Manual

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5. HOW TO USE THE PROGRAM
5 - 44
5.4.4 Data set type home position return
To specify any position as the home position, use the data set type home position return. To shift the
position, you can use the JOG operation, the manual pulse generator operation, or others. The data set type
home position return is available at servo-on only.
(1) Device/parameter
Set input devices and parameters as shown below.
Item Used device/parameter Setting
Automatic operation mode of
the program method
MD0 (Operation mode selection 1) Switch on MD0.
Data set type home position
return
[Pr. PT04] _ _ _ 2: Select the data set type.
Home position return position
data
[Pr. PT08]
Set the current position at the home position return
completion.
Program
DI1 (Program No. selection 1) to
DI7 (Program No. selection 8) Select a program containing a "ZRT" command,
which performs the home position return.
(2) Timing chart
SON (Servo-on)
ON
OFF
ZP
(Home position return completion)
ON
OFF
Forward rotation
0 r/min
Reverse rotation
ON
OFF
Servo motor speed
ST1 (Forward rotation start)
MD0 (Operation mode selection 1)
ON
OFF
ON
OFF
ST2 (Reverse rotation start)
3 ms or shorter
Home position return
position data
5 ms or longer
MEND (Travel completion)
ON
OFF
CPO (Rough match)
ON
OFF
Travel to home position Execution of data set type home position return
PED (Position end)
ON
OFF
The setting value of [Pr. PT08 Home position return position data] is used as the position address at the
home position return completion.