Mitsubishi Electronics QD75P, QD75D user manual 6000 100

5 DATA USED FOR POSITIONING CONTROL

MELSEC-Q

However, the maximum value that can be set for this "movement amount per rotation (Al)" parameter is 6553.5∝ m (approx. 6.5mm). Set the "movement amount per rotation (Al)" as shown below so that the "movement amount per rotation (AL)" does not exceed this maximum value.

Movement amount per rotation (AL)

=PB ⋅ 1/n

=Movement amount per rotation (Al) ⋅ Unit magnification (Am)

Note) The unit magnification (Am) is a value of 1, 10, 100 or 1000. If the "PB ⋅ 1/n" value exceeds 6553.5∝ m, adjust with the unit magnification so that the "movement amount per rotation (Al) " does not exceed 6553.5∝ m.

Example 1)

When movement amount per rotation (AL) = PB ⋅ 1/n = 6000.0∝ m (= 6mm)

Movement amount per rotation (AL)
= Movement amount per rotation (Al)		⋅	Unit magnification (Am)
=	6000	⋅	1

Example 2)

When movement amount per rotation (AL) = PB ⋅ 1/n = 60000.0∝ m (= 60mm)

Movement amount per rotation (AL)
= Movement amount per rotation (Al)		⋅	Unit magnification (Am)
=	6000	⋅	10
=	600	⋅	100

PLC

PLC CPU

Servo amplifier	Servomotor
QD75	M	G
		1
		n
	Encoder

Workpiece

Reduction gears

PB

Movement amount per pulse

=	PB	1	[mm/pulse]
	Pf	n

Pf

PB : Worm gear lead (mm/rev)

1/n : Deceleration rate

Pf : No. of encoder pulses (pulse/rev)

			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	: PULSE/SIGN mode	0
		1	: CW/CCW mode	1
Pr.5		2 : A phase/B phase		2	1	4	154	304	454
Pulse output mode			(multiple of 4)
		3	: A phase/B phase
				3
			(multiple of 1)
		0	: Current value increment with	0
Pr.6			forward run pulse output		0	5	155	305	455
Rotation direction setting		1	: Current value increment with	1
			reverse run pulse output

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