Rockwell-automation 1746-NI8 SLC 500 Analog Input Modules User Manual Manual do Utilizador descarregar pdf (Página 29)

3–8

Installation and Wiring

Publication

17466.8 - April 1997

Wiring Schematic for Singleended Analog Input Connections

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

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 90 91

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Rockwell-automation 1746-NI8 SLC 500 Analog Input Modules User Manual Manual do Utilizador Página 29

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