Tension Electronics PFEA113, User Manual
Chapter 3 Commissioning
3-16 3BSE029382R0101 Rev C
3.12.2 System Definition
In menu SystemDefinition the following must be set:
• LoadCellComb (load cell combination)
– One roll (load cells A and B)
– Two rolls (Roll 1 connected to A and B; Roll 2 connected to C and D)
– Segmented roll
• GainScheduling (wrap gain scheduling). Available for One roll, Two rolls (only Roll 1)
and Segmented roll.
–Yes/No
Figure 3-4. Setting system definition
The menu SRSF will only be available when the selected load cell combination is set to
segmented roll.
Segmented Roll Scale Factor (SRSF) is used to compensate the total measured tension and
present an estimate of total tension when not all rolls are supported by load cells in a segmented
roll application. For calculations of SRSF, refer to Appendix A.3 Segmented Roll Scale Factor
(SRSF).
3.12.2.1 Wrap Gain Scheduling
Gain scheduling enables the use of two different web paths on one measuring roll. Two pre-
defined values for wrap gain can be set.
Wrap gain 1 is used for wrap angle 1 and wrap gain 2 for wrap angle 2.
Which of the two wrap gains that is to be used is selected with a digital input signal or via
Profibus.
For load cell combination TwoRolls gain scheduling is available only for Roll 1.
Wrap gain parameter 1 is used if the digital input is set to “0”, or if the specified field in
Profibus is set to “0”.
Wrap gain parameter 2 is used if the digital input is set to “1”, or if the specified field in
Profibus is set to “1”.
If the digital input is used for wrap gain scheduling the wrap gain scheduling field in Profibus is
disabled.
If the digital input is used for remote zero set or set to “Off”, wrap gain scheduling is controlled
from Profibus.
FastSetUp
WebTension
Presentation-
Menu
SetNominal-
Load
ServiceMenu
ZeroSet
SetWrapGain
> 5 s
AO 1 - AO 6
Miscellaneous
Menu
System-
Definition
ObjectType
DO 1 - DO 4
AI 1 - AI 2
DI
LoadCellComb
ZZ
SRSF
Z.ZZ
LoadCellComb
[ZZ]
SRSF
[X.XX]
SystemDefinition
To
ObjectType
AreYouSure
GainScheduling
ZZ
GainScheduling
[ZZ]
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