Rockwell Automation 9329 Drive Application Software - Manual (Page 14)

FM – Inertia Compensation
Drive Application Software – page 14 of 30
Input Parameters
Name Type Range Description
1 CalcEnbl BOOL 0 to 1 Enable the Diameter Calculation
2 CalcEnblThresh_FPM REAL 0 to 50 Diameter Calc low speed thresh hold
3 CalcUpdate_Rev REAL 1 to 200 Number of revolutions per length count
4 SpeedLine_FPM REAL +/- 5000 Line Speed
5 SpeedMotor_RPM REAL +/- 7200 Actual motor speed
6 GearRatio REAL 1 to 100 Motor RPM / Roll RPM
7 DiamMinEC_in REAL 0 to FR Minimum diameter Empty Core
8 DiamFR_in REAL
MinEC to
500
Full Roll diameter
9 DiamMeasEnbl BOOL 0 to 1 Use DiamMeas value for actual Diam
10 DiamMeasInput REAL NA Measured diameter input (Raw data)
11 DiamMeasMin_DC REAL NA Raw data minimum
12 DiamMeasMax_DC REAL NA Raw data maximum
13 DiamMeasMin_in REAL 0 to 500 Actual diameter at DiamMeasMin_DC
14 DiamMeasMax_in REAL 0 to 500 Actual diameter at DiamMeasMax_DC
15 yDiamPresetCmmd BOOL 0 to 1 Preset command from DiamPreset
16 yDiamPresetVal_in REAL 0 to 500 Preset value form DiamPreset
17 DiamRate_inRev REAL 0.00 to 1 Max allowed diameter rate of change
18 DiamIncEnbl BOOL 0 to 1 Allow diameter calc to increment
19 DiamDecEnbl BOOL 0 to 1 Allow diameter calc to decrement
Return Parameters
Name Type Range Description
1 DiamCalc_in REAL 0 to 500 Actual calculated diameter
2 RadiusCalc_ft REAL 0 to 21 Actual calculated radius
3 BuildUpRatio REAL 1 to 20 Ratio of actual diameter to min core
4 BuildUpRatioRec REAL 0.05 to 1 (1 / BuildUpRatio)
5 DiamMeas_in REAL 0 to 500 Scaled value of measured diameter
6 Constant_RPMperFPM REAL NA
Scaling constant FPM to minimum
empty core RPM
4.4.1 CalcEnbl
The CalcEnbl input enables the diameter calculator. When the input is low, the
DiamCalc_in output will maintain its last value, unless the Measured Diameter Enable
input parameter (DiamCalc – In9) is true. If a preset is commanded, the DiamCalc_in
output will be updated to the preset value. When the input is high, the DiamCalc_in
output will be calculated based on line speed and the number of roll rotations. If the
line speed input is below CalcEnblThresh_FPM, the DiamCalc_in output will be held
at last value, regardless of the CalcEnbl state.
Usage – This input should be set high when the section is in run and the line speed
input represents roll surface speed (e.g. web tension control is on (Dancer / Tension /
Torque). The diameter calculator is typically disabled if some form of tension control
is not active.