Mitsubishi Electronics MR-J2S- A instruction manual Signal explanation, Absm, Absr, D01 CN1B-4

15. ABSOLUTE POSITION DETECTION SYSTEM

15.5 Signal explanation

When the absolute position data is transferred, the signals of connector CN1 change as described in this section. They return to the previous status on completion of data transfer. The other signals are as described in Section 3.3.2.

For the I/O interfaces (symbols in the I/O Category column in the table), refer to Section 3.6.

Signal name	Code	Pin No.	Function/Application	I/O	Control
				category	mode
ABS transfer		(Note)	While ABSM is shorted by connection to SG, the servo
	ABSM		amplifier is in the ABS transfer mode, and the functions	DI-1
mode		CN1B-8
			of ZSP, TLC, and D01 are as indicated in this table.
ABS request	ABSR	(Note)	ABSR-SG are shorted to request the ABS data in the	DI-1
		CN1B-9	ABS transfer mode.
			Indicates the lower bit of the ABS data (2 bits) which is
			sent from the servo to the programmable controller in
ABS bit 0	D01	CN1B-4	the ABS transfer mode.	DO-1
			If there is a signal, the circuit between D01 and SG is		P
			closed.
					(Position
			Indicates the upper bit of the ABS data (2 bits) which is
					control)
			sent from the servo to the programmable controller in
ABS bit 1	ZSP	CN1B-19	the ABS transfer mode.	DO-1
			If there is a signal, the circuit between ZSP and SG is
			closed.
			Indicates that the data to be sent is being prepared in
Send data ready	TLC	CN1B-6	the ABS transfer mode. At the completion for the ready	DO-1
			state, the circuit between TLC and SG is closed.
Home position			When CR-SG are shorted, the position control counter is
	CR	CN1A-8	cleared and the home position data is stored into the	DI-1
setting
			non-volatile memory (backup memory).

Note: When "Used in absolute position detection system" is selected in parameter No. 1, pin CN1B-8 acts as the ABS transfer mode (ABSM) signal and pin CN1B-9 as the ABS request (ABSR) signal. They do not return to the original signals if data transfer ends.

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