Rockwell-automation 1746-NI8 SLC 500 Analog Input Modules User Manual Bedienungsanleitung Seite 29

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Seitenansicht 28
3–8
Installation and Wiring
Publication
17466.8 - April 1997
Wiring Schematic for Singleended Analog Input Connections
Transmitter
+
Transmitter
Supply Signal
+
IN 1 +
IN 1 -
IN 3 +
IN 3 -
+
Power
Supply
-
IN 0 +
IN 0 -
IN 2 +
IN 2 -
Transmitter
+
Signal
Transmitter
+
Signal
Ground
NI8
Signal
When wiring singleended analog
input devices to the analog input
module, the number of total wires
necessary can be limited by
jumpering all IN-" terminals
together. Note that differential
inputs are more immune to noise
than singleended inputs.
Important: The module does
not provide loop power for
analog inputs. Use a power
supply that matches the
transmitter specifications.
Important:Follow the
guidelines on pages 3-7 and
3-9 when wiring the module.
Wiring Schematics for 2, 3, and 4Wire Analog Input Devices
2Wire Transmitter
Transmitter
+-
4Wire Transmitter
Transmitter
Supply Signal
+
-
+
-
IN +
IN -
Module
IN +
IN -
Module
+
Power
Supply
-
+
Power
Supply
-
Important: The module does
not provide loop power for
analog inputs. Use a power
supply that matches the
transmitter specifications.
Important: Follow the
guidelines on pages 3-7 and
3-9 when wiring the module.
3Wire Transmitter
Transmitter
Supply Signal
GND
IN +
IN -
Module
+
Power
Supply
-
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