En
gl
is
h (
G
B)
24
Connection example 2:
Fig. 13
Connection example 2
The wire colours refer to the Grundfos cable.
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.
Note
In this example, the termination resistors
at both sensor interfaces must be set to 1
= On.
Terminals 21 and 22 on the Conex
®
DIA-G
have two cables. Twin ferrules must be
used for connections at these terminals.
TM
03
70
32
45
06
CAN
H
24 V DC
S1
1
2
3
4
5
6
+
+
7
8
9
-
10
S2
0
9
8
76 5 43
2
1
-
0
1
ADDR
L
H L
CAN
H
24 V DC
S1
1
2
3
4
5
6
+
+
7
8
9
-
10
S2
0
9
8
76 5 43
2
1
-
0
1
ADDR
L
H L
2
1
2
1
12
11
5
12
11
5
24 V
DC
1
0
S1
L
H
L
H
+ -
Sensor interface 2
Sensor interface 1
Conex
®
DIA-G
ADDR = CAN address
24 VDC
Caution
Connect the screening to screen ground
on one side only!
Pos.
Component
1
Brown
2
White
5
Screen
11
Yellow
12
Green
Note
A second sensor interface can be
connected either to the Conex
®
DIA-G or
to the first sensor interface. See the
connection examples.
