Mitsubishi Electric D75D4, User Manual

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MELSEC-Q
5 DATA USED FOR POSITIONING CONTROL
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)
= 6000.0

m

1 time
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)
= 6000.0

m

10 times
PB: Worm gear lead (mm/rev)
1/n: Deceleration ratio
Pf: Number of pulses from encoder (pulse/rev)
Item
Setting value, setting range
Default
value
Setting value buffer memory
address
Value set with peripheral device
Value set with sequence
program
Axis 1 Axis 2 Axis 3 Axis 4
Pr.5
Pulse output mode
0 : PULSE/SIGN mode 0
1 4 154 304 454
1 : CW/CCW mode 1
2 : A phase/B phase
(multiple of 4)
2
3 : A phase/B phase
(multiple of 1)
3
Pr.6
Rotation direction setting
0 : Current value increment with
forward run pulse output
0
0 5 155 305 455
1 : Current value increment with
reverse run pulse output
1
CPU
module
QD75
Workpiece
M G
Programmable controller Servo amplifier Servomotor
Reduction gears
1
n
Encoder
Pf
PB
PB
Pf
Movement amount per pulse
[mm/pulse]
1
n