Mitsubishi Electronics MR-J2S- A instruction manual Axis start program

15. ABSOLUTE POSITION DETECTION SYSTEM

(d)X-axis control program

This precludes execution of the X-axis start program while M3 (ready to send the ABS data) is OFF.

Positioning	X-axis start
mode	command M3
			X-axis start program
		Ready to
		send the
		ABS date

When M3 (ready to send the ABS data) is turned ON, the X-axis start command executes the X-axis start program.

(e) Dog type home position return

For an example of a program for the dog type home position return operation, refer to the home position return program presented in the User's Manual for A1SD71.

(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 set the home position with the home position return start (PB ON). After switching power on, rotate the servo motor more than 1 revolution before starting home position return.

Do not turn ON the clear signal (Y45) for an operation other than home position return. Turning it ON in other circumstances will cause position shift.

M9039 Home position return mode

PC RUN
Home position
return mode			Y41		X30	X37
								PLS
			ABS	Positioning		Home position
			transfer	completion		return start PB
M20			mode
Clear	signal	ON
timer request
M21
								SET
Data set type home
position return request
T10
								RST
Clear signal 100ms ON timer
M21
Data set type home				st
position return reque
							DMOVP K500

Y2D PC ready (Note 1)

M20 Clear signal ON timer request

K1

T10 Clear signal 100ms ON timer

M21 Setting data set type home position return request

M21 Resetting data set type home position return request

Y45	Clear signal ON
D9	Setting X-axis home position address "500"	(Note 1)
	in the data register

DTOP H0001 K7912 D9 K1 *1:Changing X-axis home position address

DFROP H0001 K7912 D9 K1

(Note 2)

DTOP H0001 K41 D9 K1 *1:Changing X-axis present position data

Note 1: If data of the home position address parameter is not written by using an A6GPP programming tol, etc. before starting a program for data set type home position return, the circuits indicated by Note 1 are necessary and the circuit indicated by Note 2 is not necessary.

2:Contrary to Note 1 above, if the home position address is written in the home position address parameter. the circuit indicated by Note 3 is necessary and the circuits indicated by Note 1 are not necerssary.

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