Download DriveWare User Manual

57
gearing and the winder mechanics or use
the inertia and mass calculator to define
the inertia value. You can add any load
side rotating inertia to this input field.
Core inertia [kgm2]
Enter the total inertia of core and shaft or
use the inertia and mass calculator to
define the inertia value. This is the initial
value of inertia.
Efficiency [%]
Enter the efficiency percentage of input
torque provided to output. The efficiency
value takes into account the losses of the
winder mechanics like bearings.
Width [m]
Enter the width of material.
3
Density [kg/m ]
Enter material density information. It
affects the value of inertia.
Tension [N]
Enter the tensional force that is needed
to achieve the desired material tension.
Opposing force [N]
Enter the sum of any opposing forces
that affect the movement of reeled
material. This force is acting against
movement at the surface of the coil.
5.7.3.9 Unwinder
A centerwind type of mechanics is unwinding material from reel (see Figure 30). In
this type of winder the center of coil is driven by motor. When the positive directions
are according to the figure the normal running power is negative and will be shown
in second quadrant in torque speed diagram. The MCSize assumes that winding
starts from maximum diameter to minimum without stops. Due to this the Multiform
cyclic Duty type is not valid.
Figure 30.
Unwinder mechanics.
Sizing