Lenze E94A - Manual (Page 652)

5 Function blocks
5.210 L_WndTensionCurve - tensile force characteristic
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Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
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5.210 L_WndTensionCurve - tensile force characteristic
In the case of centre winders, the drive torque is transmitted from the centre across the individual
layers to the winding surface. For smooth materials and large diameter areas in the majority of ca-
ses it is required to reduce the tensile force in a manner depending on the diameter.
This FB serves to generate a tensile force characteristic depending on the diameter.
• This characteristic is distinguished by an initial area with a constant evaluation (100 %) and a
second area within which the tensile force is adapted to the diameter.
Inputs
Function library: LenzeWinder
Runtime software licence:  Motion Control HighLevel  Motion Control TopLevel
Identifier/data type Information/possible settings
dnTensionIn_n
DINT
Maximum setpoint of the tensile force in [%]
dwSelectCurve
DWORD
Selection of the characteristic
0 Linear tensile force characteristic
1 Linear torque characteristic
2 Course of the tensile force according to a specified characteristic
(C04885/1...65)
dnCurveCtrl_n
DINT
Gradient of the characteristic (torque characteristic) in [%]
• Internal limitation to -100 ... +200 %
• At 100 % there is a constant tensile force characteristic and therefore a torque
proportionally increasing with D.
dnD0_n
DINT
Starting point of the characteristic
• 100 % ≡ maximum diameter
dnDiameter_n
DINT
Current diameter
• 100 % ≡ maximum diameter
bEnable
BOOL
Activate tensile force setpoint
FALSE Tensile force setpoint is not affected.
TRUE Tensile force setpoint is multiplied with the characteristic value.
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