This function block gives out the tension and the torque depending on the actual diameter. At one mode of operation the tension is constant during the whole diameter change. At the other mode of operation the tension reduces in an hyperbolic way during a rising diameter value. The unit of the end tension is percent. The matching torque is calculated from the tension.
Attention: The function block doesn't make a plausibbility check of the actual diameter.
| Recommended Task: |
CYCLIC |
| Libraries used: |
none |
General description
InOut Parameter
Input Parameter
| Marking: |
Data type: |
Description: |
| x_Enable |
BOOL |
TRUE: Enable FB. |
| x_Execute |
BOOL |
LH-edge: starts a calculation of traction and torque one time. Before this calculation the fb will be check up the diameter for plausibility. The first x_enable LH-edge suppresses the plausibility check up. |
| x_Reset_Error |
BOOL |
LH-edge: reset all error messages and the internal mismeasure counter. ATTENTION: The first calculation after an error reset ignores the plausibility check up of the diameter. In this case a value jump of the result can occur. |
| ud_Diameter_Min |
UDINT |
minimal winder diameter. |
| ud_Diameter_Max |
UDINT |
maximal winder diameter. |
| ud_Diameter_Act |
UDINT |
actual winder diameter. |
| ud_Tension_End |
UDINT |
End tension in percent in relation to the start tension (ud_Tension_Start)
range: 1% <= ud_Tension_End <= 100%. |
| ud_Tension_Start |
UDINT |
Final tension which the FB put out at minimal diameter (ud_Diameter_Min)
range: 1N <= ud_Tension_Start <= 2000N. |
Output Parameter
| Marking: |
Data type: |
Description: |
| x_Error |
BOOL |
TRUE: error in calculation or at the parameterization of the inputs --> for detailled information see w_Error_Info. |
| w_Error_Info |
WORD |
Detailed error description, bitcoded, please see main page. |
| ud_Torque_Target |
UDINT |
calculated torque. |
| ud_Tension_Target |
UDINT |
calculated traction. |
| w_Error_Info |
Description: |
| Bit 0 |
Internal error, please raise ud_Diameter_Max and ud_Tension_End. |
| Bit 1 |
Minimum Diamater > Maximum Diameter. |
| Bit 2 |
Minimum Diameter = 0. |
| Bit 3 |
Maximum Diameter = 0. |
| Bit 4 |
Start tension out of range: 1 N to 2000 N. |
| Bit 5 |
Final tension out of range: 1% to 100%. |
| Bit 15 |
No technology license at PLC platform. |
