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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 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 : pulse 3
3 0 150 300 450
Pr.2
No. of pulses per
rotation (Ap)
(Unit : pulse)
1 to 65535
1 to 65535
1 to 32767
:Set as a decimal
32768 to 65535
:Convert into hexadecimal
and set
20000 1 151 301 451
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 next page
20000 2 152 302 452
1 : 1-fold 1
10 : 10-fold 10
100 : 100-fold 100
Movement amount per pulse
Pr.4
Unit magnification (Am)
1000 : 1000-fold 1000
1 3 153 303 453
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 pulse.
Different units can be defined for different axes (axis 1 to 4).
(Example) Different units (mm, inch, degree, and pulse) 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)
pulse.............. 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).
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