Grundfos Conex DIA-G Instrucciones De Instalación Y Funcionamiento página 26

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Connection example 2:
In this example, the termination resistors
at both sensor interfaces must be set to 1
= On.
Note
Terminals 21 and 22 on the Conex
have two cables. Twin ferrules must be
used for connections at these terminals.
Sensor interface 1
CAN
S1
S2
1
1
2
3
4
5
6
0
9
1
2
8
3
7
0
6 5 4
H
L
H L
ADDR
12
11
5
ADDR = CAN address
Fig. 13
Connection example 2
Connect the screening to screen ground
Caution
on one side only!
Pos.
Component
1
Brown
2
White
5
Screen
11
Yellow
12
Green
The wire colours refer to the Grundfos cable.
26
®
DIA-G
®
Conex
DIA-G
1
L
24 V DC
7
8
9
10
-
+
-
-
+
+
2
1
S1
0
H
Sensor interface 2
S1
1
1
H
L
0
H
12
Sensor interface 1:
Signal and screen:
H: Connect the green wire to terminal 25.
L: Connect the yellow wire to terminal 23.
Screen: Connect the screen to terminal 27.
Voltage supply:
Connect the brown wire (+) to terminal 21.
Connect the white wire (-) to terminal 22.
Addressing:
The sensor interface address is specified on the
round selection switch for the CAN address (S2
ADDR) as follows:
– Sensor interface 1: address 1
– Sensor interface 2: address 2
Set the address by turning the switch using a
small screwdriver
Termination resistor:
Termination resistors ensure fault-free
measurement for the sensors via the CAN
interface. The termination resistor (S1) is fitted
on the last devices in the row and set to 1 = On.
A second sensor interface can be
connected either to the Conex
Note
to the first sensor interface. See the
connection examples.
S2
24 V DC
CAN
2
3
4
5
6
0
7
8
9
10
9
1
2
8
3
7
6 5 4
-
+
+
L
H L
ADDR
2
1
11
5
®
DIA-G or
-

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