Parker EME
Configuration
Defining
the reference system
I11 T11 192-120101 N6 - March 2004
41
4.1.5.1 Measure
reference
In this chapter you can read about:
You can select from among the following for the unit:
!
mm,
!
increments or
!
angle degree.
The unit of measure is always [mm] for linear motors.
The measure reference to the motor is created with the value:
"travel distance per motor revolution / pitch" in the selected unit.
You can enter the "travel distance per motor revolution" as a fraction (numerator
divided by denominator). This is useful in the case of endless operation mode or in
reset mode if the value cannot be specified as a rational number. This makes it
possible to avoid long-term drifts.
Rotary table control
M
70
4
144°
7
Unit: degrees
gear transmission ratio 70:4 => 4 load revolutions = 70 motor revolutions
Travel distance per motor revolution = 4/70 * 360° = 20.571 428 5 ...° (number
cannot be represented exactly)
Instead of this number, you have the option of entering it exactly as a numerator
and denominator:
Travel distance per motor revolution = 144/7
This will not result in any drift in endless operation mode or in reset mode, even
with relatively long motion in one direction.
Conveyor belt
7
4
10mm
M
7
4
Unit
Travel distance per
motor revolution /
pitch
Input as numerator
and denominator
Example 1:
Example 2:
