Mitsubishi Electric MELSEC iQ-R RD75P4, User Manual

Page: 384 / 598

382
12 DATA USED FOR POSITIONING CONTROL
12.3 Basic Setting
[Pr.3] Movement amount per rotation (16 bits) (Al)
Set the distance of machine movement (movement amount) per rotation of the motor shaft with 16 bits. When [Pr.62]
Electronic gear selection is set to 0: 16 bits, this area is valid. When the movement amount per rotation of the motor shaft
exceeds the setting range of this area in the system used, adjust the setting value with the following method.
• Use [Pr.4] Unit magnification.
• Use [Pr.3] Movement amount per rotation (32 bits).
■
Buffer memory address
The following table shows the buffer memory address of this area.
■
Setting range
The setting range depends on the setting of [Pr.1] Unit setting.
*1 When this buffer memory area is set with programs, a calculation is performed in the RD75 to convert a setting value to the value in
each unit. For setting this buffer memory area, take the value after the unit conversion into consideration.
■
Default value
The default value is 20000 for all the axes.
[Pr.4] Unit magnification
When the movement amount per rotation of the motor shaft exceeds the setting range of [Pr.3] Movement amount per rotation
(16 bits), adjust the setting range (10 to 1000 times) with this area. When [Pr.62] Electronic gear selection is set to 0: 16 bits,
this area is valid. When [Pr.62] Electronic gear selection is set to 1: 32 bits, the unit magnification is fixed to 1: 1 time.
■
Buffer memory address
The following table shows the buffer memory address of this area.
■
Default value
The default value is 1: 1 time for all the axes.
Buffer memory name Axis 1 Axis 2 Axis 3 Axis 4
[Pr.3] Movement amount per rotation (16 bits) (Al) 2 152 302 452
Setting of [Pr.1] Unit setting Setting value with engineering tools Setting value with programs
*1
0: mm 0.1 to 6553.5 (

m) 1 to 65535 (

10
-1

m)
1: inch 0.00001 to 0.65535 (inch) 1 to 65535 (

10
-5
inches)
2: degree 0.00001 to 0.65535 (degree) 1 to 65535 (

10
-5
degrees)
3: pulse 1 to 65535 (pulse) 1 to 65535 (pulse)
Unit magnification Setting value
1 time 1
10 times 10
100 times 100
1000 times 1000
Buffer memory name Axis 1 Axis 2 Axis 3 Axis 4
[Pr.4] Unit magnification 3 153 303 453