ABB PFEA 113 - Segmented Roll; Single Side Measurement (One Load Cell)

Tension Electronics PFEA113, User Manual
Section 4.7.1 Web Tension
3BSE029382R0101 Rev C 4-7
4.7.1.2 Segmented Roll
Segmented Roll Scale Factor (SRSF) is used to compensate the wrap gain to get a correct
measurement reading when not all rolls are supported by load cells in a segmented roll
application. For simplified calculations of SRSF, refer to Appendix A.3.1 Segmented Roll Scale
Factor (SRSF).
• Segmented roll (one input)
– Tension A
• Segmented roll (two inputs)
–WebTension (total web tension = A+B)
– Tension A, Tension B, TensionDiff A-B
• Segmented roll (three inputs)
–WebTension (total web tension = A+B+C)
– Tension A, Tension B, Tension C, TensionDiff A-C
• Segmented roll (four inputs)
–WebTension (total web tension = A+B+C+D)
– Tension A, Tension B, Tension C, Tension D, TensionDiff A-D
4.7.1.3 Single Side Measurement (One Load Cell)
The following menus are shown when only one load cell per roll (single side measurement) is
connected to the tension electronics:
• Web Tension (One roll, load cell A or B)
• TensionRoll 1 (Two rolls, Roll 1, load cell A or B)
• TensionRoll 2 (Two rolls, Roll 2, load cell C or D)
Web Tension, TensionRoll 1 or TensionRoll 2 is the tension measured by a single load cell
multiplied by 2.