Mitsubishi QD75M1, User Manual

Page: 109 / 882

5 - 22
MELSEC-Q
5 DATA USED FOR POSITIONING CONTROL
5.2 List of parameters
5.2.1 Basic parameters 1
Setting value, setting range
Setting value buffer memory
address
Item
Value set with peripheral device
Value set with sequence
program
Default
value
Axis 1 Axis 2 Axis 3 Axis 4
0 : mm 0
1 : inch 1
2 : degree 2
Pr.1
Unit setting
3 : PLS 3
3 0 150 300 450
Pr.2
No. of pulses per
rotation (AP)
(Unit : PLS)
1 to 200000000 1 to 200000000 20000
2
3 152
153 302
303 452
453
Pr.3
Movement amount per
rotation (AL)
The setting value range differs according to the
Pr.1
Unit
setting.
Here, the value within the [Table 1] range is set.
[Table 1] on right page
20000
4
5 154
155 304
305 454
455
1 : 1 times 1
10 : 10 times 10
100 : 100 times 100
M
o
vem
ent
am
ount
per pul
s
e
Pr.4
Unit magnification (AM)
1000 : 1000 times 1000
1 1 151 301 451
Pr.7
Bias speed at start
Not used 0
6
7 156
157 306
307 456
457
: This buffer memory address in QD75M is different from QD75P.
Pr.1 Unit setting
Set the unit used for defining positioning operations. Choose from the following
units depending on the type of the control target: mm, inch, degree, or PLS.
Different units can be defined for different axes (axis 1 to 4).
(Example) Different units (mm, inch, degree, and PLS) are applicable to different
systems:
mm or inch .... X-Y table, conveyor (Select mm or inch depending on the
machine specifications.)
degree ........... Rotating body (360 degrees/rotation)
PLS................ X-Y table, conveyor
When you change the unit, note that the values of other parameters and data
will not be changed automatically.
After changing the unit, check if the parameter and data values are within the
allowable range.
Set "degree" to exercise speed-position switching control (ABS mode).