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70 Connect Devices
WAGO-I/O-SYSTEM 750
750-450 4 AI RTD
Manual
Version 1.2.0
6.2.4
4 × 3 Wires, Potentiometer
Figure 14: Connection Example 750-450, 4-Channel, 4 x 3 Wires, Potentiometer
Table 59: Connection Terminals, Functions and Measuring Circuits, Potentiometer
Termination Channe
l
Function Description
Measuring
circuit
1
1
+R1
Measuring current output and
measuring voltage input (+)
1
2
+R1L
Measuring voltage input for slider
resistance. (
−
)
9
−R1
Measuring current return line and
measuring voltage input (
−
)
10
−R1L
Not used
3
2
+R2
Measuring current output and
measuring voltage input (+)
2
4
+R2L
Measuring voltage input for slider
resistance (
−
)
11
−R2
Measuring current return line and
measuring voltage input (
−
)
12
−R2L
Not used
5
3
+R3
Measuring current output and
measuring voltage input (+)
3
6
+R3L
Measuring voltage input for slider
resistance (
−
)
13
−R3
Measuring current return line and
measuring voltage input (
−
)
14
−R3L
Not used
7
4
+R4
Measuring current output and
measuring voltage input (+)
4
8
+R4L
Measuring voltage input for slider
resistance (
−
)
15
−R4
Measuring current return line and
measuring voltage input (
−
)
16
−R4L
Not used