Rockwell Automation 9329 Drive Application Software Tension Control Gen. Units - Manual (Page 22)

FM – Tension Control
Drive Application Software – page 22 of 52
Return Parameters
Name Type Range Description
1 DrvSpdTrimRf_EU REAL NA
Drive Speed Trim Reference
[Engineering Units]
2 DrvSpdTrimRf_PU REAL -1.0 to 1.0 Drive Speed Trim reference [Per Unit]
3 DrvTrqTrimRf_PU REAL -1.0 to 1.0
Drive Torque Trim Reference [Per
Unit]
4 DrvTrqMode INT 0 to 5 Drive Torque Mode Selection
5 TenRf_Pct REAL 0 to 100
Tension Reference [Percent of
Maximum]
6 RegRf_Pct REAL 0 to 100 Regulator Reference (Input)
7 RegFb_Pct REAL 0 to 100 Regulator Feedback (Input)
8 RegErr_Pct REAL -100 to 100 Regulator Error
4.5.1 TenStpt_DC
This is the tension set point in raw “Data Counts”. The Tension set point will be
scaled from 0 to 100 percent based on TenStptMin_DC and TenStptMax_DC.
Usage – Connect to the tag that is the tension set point of the section.
4.5.2 TenStptMin_DC
This is the tension reference value that will equate to 0 percent.
Usage - Connect to the Tension Set point Minimum value tag or set the constant
value in the JSR.
4.5.3 TenStptMax_DC
This is the tension reference value that will equate to 100 percent.
Usage - Connect to the Tension Set point Maximum value tag or set the constant
value in the JSR.
4.5.4 TenRfStall_Pct
This is stall tension reference set point. This value is express in terms of percent of
Tension Set point. If TenRfStall_Pct is set to 10% and the Tension Set point is 100
pounds, than in stall the tension reference would be 10 pounds.
Usage - Connect to the Tension Reference Stall Set point value tag or set the
constant value in the JSR.
4.5.5 TenRfStallMin_Pct
The Tension Reference Stall Minimum Percent is used to maintain a minimum
tension on the web during stall. This value is in percent of maximum tension. In the
above description, during stall the tension reference would be 10 pounds. However,
in this example the machine must maintain a minimum 25 pounds. If the maximum
tension (TenStpMax_DC) is 1000 pounds, then TenRfStallMin_Pct would be set to
2.5%.
4.5.6 TenRfTaper_Pct
This is the taper tension reference in percent. The value is calculated in the
TenRfTaper routine.
Usage - The tag entered in the TenRfTaper JSR instruction for this return parameter
should be entered as an input parameter to the Regulator JSR instruction.
% 5 . 2 100
1000
25
=
x