Rockwell Automation MagneMotion MagneMover LITE User Manual Addendum

MagneMover LITE User Manual Addendum,
Wide Vehicles
MMI-UM034B-EN-P Page 13 of 31
Calculating the Length of Straight Motors between Curves
The equations in the following figures provide a method to determine the required length of
the straight motors located between curve motors. All motion in the figures is downstream as
indicated in the figure. Figure 12 provides an example of the terminology that is used in the
equations. The terminology for motor identification represents straight and curve motors (ex.
Curve to the Left, Straight, Curve to the Right is noted as L-S-R).
Figure 12: Specification of Rectangular Vehicle Geometry
R is the radius of the curve motor, which is taken from the center of motion on the motor.
For curve motors and the curve section of a switch, the radius is always 125 mm.
L
s
is the minimum length for the straight motor, which can be 0 meaning that there is no
need for a straight motor at that location.
In Figure 13, L
s
is the minimum length for the straight motor following the curve when the
width of the vehicle on the inside of the curve exceeds the radius of the curve. L
s
can be less
than or equal to 0, which means that there is no need for a straight motor at that location. Use
the formulas to determine the minimum straight motor length to make sure that the vehicle
does not collide with a vehicle following it. This motor calculation excludes the vehicle
rotation as shown in Figure 11.
Figure 13: Calculation for Straight Motor, Curve Motor, Straight Motor
Downstream
Vehicle
w1
l2
l1
w2
S-R-S 

= 
2
− R + 
2
S-L-S 

= 
1
− R + 
2

Rockwell Automation MagneMotion MagneMover LITE Specifications

General

Brand	Rockwell Automation
Model	MagneMotion MagneMover LITE
Category	Accessories
Language	English