Rockwell Automation 9329 Drive Application Software Inertia Comp Imperial Units - Manual (Page 11)

FM – Inertia Compensation
Drive Application Software – page 11 of 28
4.3.4 Constant_RPMperFPM
This input parameter is the translational-to-rotational conversion constant in
RPM/FPM.
Usage – From the Diameter Calculator Function Module return parameter of the
same name.
4.3.5 Width_in
This input parameter is the material width in inches.
Usage – Set equal to the material width in inches.
4.3.6 GearRatio
This input parameter is the gear ratio expressed as Motor Speed / Roll Speed.
Usage – Set equal to the gear ratio.
4.3.7 MtrSpdBase_RPM
This input parameter is the motor base speed in RPM.
Usage – Set equal to the motor nameplate base speed in RPM.
4.3.8 MtrTrqRated_lbft
This input parameter is the motor rated torque in pound-feet
Usage – Set equal to the motor rated torque in pound-feet.
4.3.9 WeightRoll_lb
This return parameter is the weight of the roll in pounds.
Usage – Monitor or display only.
4.3.10 JRoll_lbft2
This return parameter is the roll inertia reflected to the motor in Pound-Feet2.
Usage – Monitor or display only.
4.3.11 J_lbft2
This return parameter is the total reflected inertia in Pound-Feet2.
Usage – Monitor or display only.
4.3.12 J_sec
This return parameter is the normalized total reflected inertia in seconds. The value
represents the time to accelerate the total connected inertia from zero to motor base
speed with rated motor torque applied.
Usage – To the JLossComp routine input parameter of the same name.
4.3.13 J_PU
This return parameter is normalized total reflected inertia. The value represents the
ratio of total inertia divided by minimum empty core inertia.
Usage – Monitor or display only.
RPM MtrSpdBase
HorsePower
lbft d MtrTrqRate
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