
Control Block Description
ADDvantage-32 PLUS
4-129
The torque required to accelerate a roll is equal to the WK
2
of the body times the change
in RPM.
RPMinChange
WKTorque
2
×=
(For a Fixed Diameter)
FPMinChange
WKTorque
2
×=
(For a Variable Diameter)
The D/DT block is used for
.
FPMinChange
Therefore, the amount of current needed to accelerate a roll should equal the output of the
WK/D block times the output of the D/DT block. This should be calculated for a core
first (DIA = CDIA) and then a full roll of material (CDIA = MAXIMUM DIAMETER).
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