2 the taper function þ, 3 the taper type þ – Rockwell Automation WebPak 3000 DC Drive Application Workbook Version 1.1 User Manual
Page 53
Configuring the Outer Control Loop Reference
9-3
9.1.2 The Taper Function
þ
To implement a taper function for winder tension profiling with roll buildup:
The section run input and the tension on input must be asserted.
▲
Set
TAPER
ENABLE
(P.858) to
ENABLE
. This will modify the tension reference
based on the dynamic value of
TAPER
PERCENT
(P.859) which is the product of
TAPER
SET
SELECT
(P.862) and
TAPER
TYPE
(P.863). (See section 9.1.3, Taper
Type.)
▲
Set
TAPER
SET
SELECT
(P.862) to configure the source of the value used to
calculate the percent reduction of the tension reference from core to full roll
winder diameters. The choices are:
REGISTER
- Provides a taper percentage based on the value of
TAPER
SET
REGISTER
(P.861).
ANALOG
- Provides a taper percentage based on the value of the dual function
diameter/taper range analog input signal at terminals 16, 17, and 18 on the
Regulator board.
þ
If
TAPER
SET
SELECT
(P.862) =
REGISTER
:
▲
Set
TAPER
SET
REGISTER
(P.861).
þ
If
TAPER
SET
SELECT
(P.862) =
ANALOG
:
▲
Set
DIAMETER
/
TAPER
SELECT
(P.870) to
TAPER
RANGE
to configure the
analog input function.
▲
Set
DIAMETER
/
TAPER
ZERO
(P.105) to adjust the zero point of the
diameter/taper range input (terminals 16, 17, and 18 on the Regulator
board).
▲
Set
DIAMETER
/
TAPER
GAIN
(P.104) to adjust the gain for the
diameter/taper range input.
DIAMETER
/
TAPER
IN
TP
(P.192) is the digital value of the analog input.
9.1.3 The Taper Type
þ
To configure the taper type:
▲
Set
TAPER
TYPE
(P.863) to select the diameter-sensitive curve that the taper
signal will follow. The choices are:
LINEAR
- Provides a linear change in tension, decreasing from core to full roll
as determined by the output of the diameter calculator
NORM
ROLL
DIAMETER
(P.131).
Range:
ENABLE
,
DISABLE
P.858 =
(1$%/(
Range:
REGISTER
,
ANALOG
P.862 =
Range: 0.0 to 100.0%
P.861 =
%
Range:
DIAMETER
,
TAPER
RANGE
P.870 =
7$3(5 5$1*(
Range: -3000 to 3000
P.105 =
Range: 0.750 to 2.250
P.104 =