gefran 2500 User Manual

2. MELT PRESSURE CONTROL AND FILTER CHANGE SIGNAL
Model 2500-1-0-0-0-2-1
PAS = 31
The basic instrument 2500-1-0-x-x-x-x checks the efficiency of the filter upline of the volumetric pump, seen as the difference in
input-output pressure.
The 2500 instrument acquires the variables via the two main inputs, one of which is also used to control pressure (see application 1).
The OUT3 alarm (configurable) signals the need to change the filter (manual or automatic).
OUT3 filter change
OUT2 - Phigh
OUT1 - Pmin
Main input 2Main input 1
(process value)
Control output 0...10V
Man/Auto
Extruder off
Raise
Lower
Drive
Dialog with PLC or
supervision unit (if
any)
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 -)
~
~
Man Loc / Autom.
CO1
3
4
26
27
5
6
1
2
24
25
5
6
RL min
24V
- Exc
+ Exc
CAL
CAL
+
+
+
+
- Exc
+ Exc
CAL
CAL
+
+
+
+
Dec
Inc
RL max
+
+
Serial
line
Drive
min. alarm (Out1)
max. prealarm (Out2)
Power
supply
Main input 1
Main input 2
Filter change (OUT3)
Green
White
Black or Yellow
Red
Blu
Brown
or Orange
Green
White
Black or Yellow
Red
Blu
Brown
or Orange
Estruder off
18 80291G_MHW_2500_08-2010_ENG
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gefran 2500 Specifications

General

Brand	gefran
Model	2500
Category	Controller
Language	English