8.0
OPEN LOOP TENSION CONTROL BASED ON DIAMETER
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MAGPOWR Spyder-Plus
MI 850A320 1 M
Page 31 of 60
8.2.2.1
CONTROL TYPE
Select the control type “Tension, Diameter”. Open Loop Tension systems must use a torque device; which can be
a clutch or brake or motor in torque mode.
8.2.2.2
SYSTEM TYPE
Select the appropriate system type for the application, rewind or unwind.
8.2.2.4
USE TAPER
Enables tapering of tension as the roll diameter increases. See Section 8.4 for setup of taper.
8.2.2.5
OUTPUT RANGE
Select the main output range. For a main output range of either 0-10 VDC or 4-20 mADC select NORMAL. For the
–10 to +10 VDC range select “–10V to +10V”. The software is factory calibrated for the 0-10 VDC and the -10 to
+10 VDC output ranges. See Section 9.4 for recalibrating the output when using the 4-20 mADC range. See Figure
4 for jumper settings.
8.2.2.6
SETPOINT SOURCE
Select the source for the tension setpoint. When set to ANALOG the Spyder will use voltage on the terminal 16 as
the tension setpoint. When set to ETHERNET the Spyder will use the software value of setpoint tension percent.
This value may be changed either at the k
eypad, the web page or by Modbus/TCP. Use the “Setpoint Tension”
screen in the “Operator Loop” to change the tension setpoint.
8.2.2.7
DIGITAL INPUT ACTIVE LEVEL
The digital control inputs may be either Active Low or Active High. The software is factory configured for Active
Low inputs. See Section 5.2 and Figure 4.
8.2.2.8
INITIAL SCREEN
The first screen after power-up is the "Operator Loop" screen. This parameter allows the initial power-up screen to
be changed to either the "Tension" screen, Section 8.2.1.1, the "Output Level" screen, Section 8.2.1.6, or the
“Present Diameter” screen, Section 8.2.1.2.
8.2.2.9
NUMERIC UPDATE RATE
This parameter controls the filtering for the numeric actual tension and the actual output displays. Default values
work well in most applications.
8.2.2.10
BAR GRAPH UPDATE RATE
This parameter controls the filtering for the bar graph actual tension and the actual output displays. Default values
work well in most applications.
8.2.2.11
SCREEN CONTRAST
This screen allows adjustment of the screen contrast. See Section 10.1, General Problems, when screen shows no
characters.
8.2.2 CONFIGURE MENU
Navigate to the
Configure
menu. Press
. This section describes all
the screens in the Configure menu. This menu contains screens which
configure various options.
