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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 PLC 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
Movement amount per pulse
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
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).