Avtron ADDvantage-32 User Manual

Control Block Description ADDvantage-32
4-132
4.77 WINDER WK/D
This block calculates the inertia of a winder/unwinder. The inertia of the material which
is essentially a hollow cylinder is equal to WK2 = const × width × ((dia
4
) - (core dia
4
)).
Therefore, total inertia of a roll of material is the result of the previous equation plus the
fixed inertia.
FIGURE 4-77. WINDER WK/D BLOCK
1. Inputs
VAR: Analog
WID: Analog
DIA: Analog
FIX: Analog
CDIA: Analog
VDIA: Analog
2. Outputs
WK: Analog
3. Implementation
WK =
VDIA
FIX)CDIADIA)(WID)(VAR(
44
+−
VAR x WID x
(DIA - CDIA )
44
FIX
CDIA
VAR
WID
DIA
V
DIA
A
B
SUM
(A+B)
DIA
DIV
(A+B)
WK
(A+B)
DIA
WINDWKD

Avtron ADDvantage-32 Specifications

General

Manufacturer	Avtron
Type	Control Unit
Model	ADDvantage-32
Number of Channels	32
Humidity	5% to 95% non-condensing
Communication Interface	RS-485