MITSUBISHI ELECTRIC MELSERVO MR-J2S- A - Manual (Page 364)

15 - 57
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
Y1D
Y31 X20 X27
M20
M21
T10
M20 PLS
M21
D9 K500 DMOVP
K1 D9 K72 H0000 DTOP
K1 D9 K72 H0000 DFROP
K1 D9 K1154 H0000 DTOP
T10
M21 SET
K1
M21 RST
Y35
(Note 1)
(Note 2)
19)
18)
K1 K9003 K1150 H0000 TO
Y10 SET
X1 X4 Y10
Y10 RST
XA
17)
Programmable controller ready
Clear (CR) ON timer request
Clear (CR) 100ms ON timer
Setting data set type home position return request
Resetting data set type home position return
request
Switch clear (CR) on
Setting X-axis home position address 500
in data register
*1: Changing X-axis home position address
(Note3)
*1: Changing X-axis current value
*1: Writing positioning data No. 9003
Starting positioning
Switching BUSY signal off to switch start
signal off.
PC RUN
Home position
return mode
ABS transfer
mode Positioning
completion Home position
return start PB
Clear signal ON
timer request
Data set type home position return request
Clear signal 100ms ON timer
Data set type home position
return request
Positioning
start Start
completion BUSY
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.