Rockwell Automation 9329 Drive Application Software - Manual (Page 18)

FM – Inertia Compensation
Drive Application Software – page 18 of 30
4.4.22 BuildUpRatio
This output is a ratio of the actual diameter to the minimum empty core diameter.
Usage – Typically used to scale the spindle rotational speed reference.
4.4.23 BuildUpRatioRec
This output is the reciprocal ratio of the actual diameter to the minimum empty core
diameter.
Usage – Typically used to scale the spindle rotational speed reference.
4.4.24 DiamMeas_in
This output is the scaled measured diameter from an external source.
Usage – (default) This output is connected to the DiamPreset routine, for use as a
preset to the diameter calculator.
4.4.25 Constant_RPMperFPM
This output is created for use as a pre-calculated scaling constant. The constant is
used in conversions from FPM linear speed ref to RPM motor speed. The change in
roll diameter is not included in the constant and must be applied separately.
Usage – Use to convert speed in FPM to motor speed in RPM.
4.4.26 Constant_RPMperFPM
This output is created to convert line speed values in FPM to the corresponding
motor speed at minimum empty core diameter in RPM.
in DiamMinEC_
n DiamCalc_i
io BuildUpRat
=
io BuildUpRat
eedRef_RPM CoreLineSp
ed_RPM SpindleSpe
=
tioRec *BuildUpRa eedRef_RPM CoreLineSp ed_RPM SpindleSpe
=
n DiamCalc_i
in DiamMinEC_
in DiamMinEC_
n DiamCalc_i
1
ioRec BuildUpRat
= =
12
* _
π
in DiamMinEC
GearRatio
PMperFPM Constant_R
=
io BuildUpRat
PM nt_RPMperF FPM*Consta LineSpeed_
_RPM MotorSpeed
=