Mitsubishi Electronics QD75P, QD75D user manual OPR basic parameters, Pr.43 OPR method

5DATA USED FOR POSITIONING CONTROL

5.2.5 OPR basic parameters

MELSEC-Q

			Setting value, setting range			Setting value buffer memory
					Default		address
	Item
		Value set with peripheral device		Value set with sequence	value	Axis 1	Axis 2	Axis 3	Axis 4
				program
		0	: Near-point dog method	0
		1	: Stopper method 1)	1
Pr.43	2 : Stopper method 2)		2	0	70	220	370	520
OPR method		3	: Stopper method 3)						3
		4	: Count method 1)	4
		5	: Count method 2)	5

Pr.43

OPR method

Set the "OPR method" for carrying out machine OPR.

0	: Near-point dog method	After decelerating at the near-point dog ON, stop
		at the zero signal and complete the machine
		OPR.
1	: Stopper method 1)	After decelerating at the near-point dog ON, stop
		with the stopper, and complete the machine OPR
		after the dwell time has passed.
2	: Stopper method 2)	After decelerating at the near-point dog ON, stop
		with the stopper, and complete the machine OPR
		with the zero signal.
3	: Stopper method 3)	After starting with the creep speed, stop with the
		stopper, and complete the machine OPR with the
		zero signal.
4	: Count method 1)	After decelerating at the near-point dog ON, move
		the designated distance, and complete the
		machine OPR with the zero signal.
5	: Count method 2)	After decelerating at the near-point dog ON, move
		the designated distance, and complete the
		machine OPR.

Note) Refer to Section 8.2.2 "Machine OPR method" for details on the OPR methods.

OPR method

0 : Near-point dog method

(1)Start machine OPR.

(Start movement at the " Pr.46 OPR speed" in the " Pr.44 OPR direction".)

(2)Detect the near-point dog ON, and start deceleration.

(3)Decelerate to " Pr.47 Creep speed", and move with the

creep speed.

(At this time, the near-point dog must be ON. If the near- point dog is OFF, the axis will decelerate to a stop.)

(4)At the first zero signal (one pulse output at one motor revolution) after the near-point dog OFF, the pulse output from the QD75 stops, and the machine OPR is completed.

VPr.46 OPR speed

(2)

	Pr.47
	Creep speed
(3)	(4)
(1)	t
ON
Near-point dog OFF
Zero signal

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