Mitsubishi Electric MELSERVO MR-J2S- A Instruction Manual page 364

15. ABSOLUTE POSITION DETECTION SYSTEM
(f) Data set type home position return
After jogging the machine to the position where the home position (e.g. 500) is to be set, choose the
home position return mode and set the home position with the home position return start (PBON).
After switching power on, rotate the servo motor more than 1 revolution before starting home
position return.
Do not turn ON the clear (CR) (Y35) for an operation other than home position return. Turning it
on in other circumstances will cause position shift.
M9039
PC RUN
Home position
Y31 X20
return mode
ABS transfer Positioning
mode completion
M20
Clear signal ON
timer request
M21
Data set type home position return request
T10
Clear signal 100ms ON timer
M21
Data set type home position
return request
(Note 1)
(Note 2)
Y10 X1 X4
Positioning Start BUSY
start completion
XA
Error detection
Note 1. If the data of the home position address parameter is not written from the A7PHP programming tool or the like
before starting the data set type home position return program, this sequence circuit (Note 1) is required and
the sequence circuit (Note 2) is not required.
2. Contrary to above 2, if the home position address is written in the home position address parameter,
the sequence circuit (Note1) is not required but this sequence circuit (Note 1) is required.
3. Changes are stored temporarily to buffer memory at this time. An additional processing is required
when changes should be reflected to memory for OS or flash ROM. For details, refer to the positioningmodule user's manual.
X27
Home position
return start PB
DTOP H0000
DFROP H0000
DTOP H0000
TO H0000
Programmable controller ready
Y1D
Clear (CR) ON timer request
PLS M20
K1
Clear (CR) 100ms ON timer
T10
Setting data set type home position return request
SET M21
Resetting data set type home position return
RST M21
request
Switch clear (CR) on
Y35
Setting X-axis home position address 500
DMOVP K500 D9
in data register
*1: Changing X-axis home position address
K72 D9 K1
(Note3)
K72 D9 K1
*1: Changing X-axis current value
K1154 D9 K1
*1: Writing positioning data No. 9003
K1150 K9003 K1
Starting positioning
SET Y10
Switching BUSY signal off to switch start
RST Y10
signal off.
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