3. ROLLER TENSION CONTROL
Model 2500-0-0-0-0-2-1
PAS = 32
The basic model 2500-0-x-x-x-x-x with one main input accurately controls roller tension on a winding line.
Tension is measured by 2 load cells with 2mV/V sensitivity connected in parallel, powered at 10Vdc by the instrument’s auxiliary
power supply.
Given a setpoint, the instrument keeps roller winding constant.
The 2500 control output controls the drive that controls winder motor speed.
Tension control can be adjusted via a digital input configured to select Local/Remote SP and an external potentiometer powered by
the instrument.
A second remote input, configured to receive line speed, lets the instrument start in Automatic with a percentage of power on the con-
trol output, thereby preventing strong jerks on the winding material.
Drive
TR Load Cell
TR
TR
Main input 1
Auxiliary analog input 3
Dialog with
PLC or supervi-
sion unit (if any)
Tension control
Remote SP
(through potentiometer)
Auxiliary analog input 4
Control output
0...10V
Line speed (0-10Vcc)
BA
1
11
24
33
1
11
22
12
2
3
4
5
6
7
8
9
10
25
26
27
28
29
30
31
32
13
14
15
16
17
18
19
20
21
10
9
8
7
6
5
4
3
2
22
12
13
14
15
16
17
18
19
20
21
24
33
25
26
27
28
29
30
31
32
GND
A (data +)
B (data -)
~
~
Setpoint LOC / REM
CO1
- Exc
+ Exc
- Exc
+ Exc
10
11
8
9
+
+
+
+
+
+
+
+
Serial
line
Drive
Power
supply
IN3
Line speed reference
IN4
Tension set potentiometer
Vpot (10Vdc)
Vpot (10Vdc)
1980291G_MHW_2500_08-2010_ENG
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