BONFIGLIOLI Active Cube

40 EM-ABS-01 for ACU 03/12
][_][][ )4( urefDistanceuctDistance_auError
−
=
][_][ )5( ][ mrefDistanceAccuracyctDistance_amError
u
m
u
−⋅=
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The error can be reduced by increasing the accuracy of the gear factors. By using the
2 decimal places of parameters
EC2 Gear Factor Numerator 513 and EC2 Gear
F
actor Denominato
r
514 and the optimization described in the previous step (“8
Optimization of gear factors”), accuracy can be increased.
A
t a maximum travel distance of 10 m, the following is obtained:
Non-optimized gear factors
Distance_nominal [rev] = 1 000 000 rev
Distance_actual [internal] = 23 633 609
Distance_actual [rev] = 1 000 131 rev
Error [rev] = 131 rev
Error [m] = 0.00131 m
Error [mm] = 1.3 mm
Optimized gear factors
Distance_nominal [rev] = 1 000 000 rev
Distance_actual [internal] = 23 630 769
Distance_actual [rev] = 1 000 011 rev
Error [rev] = 11 rev
Error [m] = 0.00011 m
Error [mm] = 0.11 mm
Note:
Parameter
EC2 Gear Factor Numerator 513 is limited in value ran
g
e
-300.00...300.00,
EC2 Gear Factor Denominator 514 is limited in value
ran
g
e 0.01 to 300.00. In many situations, choosin
g
a modifier is useful
which sets the greater of the two parameters to a value sli
g
htly below
300.00.