Rockwell-automation 1746-NO8V SLC 500 8-Point Analog Output Module Manual de usuario descargar pdf (Pagina 11)

SLC 500 8-Point Analog Output Module 11

Publication 1746-IN026A-EN-P - July 2003

Wiring

Preliminary Considerations

Use the following guidelines in planning the system wiring for the analog modules:

• Use Belden cable #8761 for wiring the analog modules making sure that the

drain wire and foil shield are properly earth grounded.

• Route the Belden cable separate from any other wiring. Additional noise

immunity can be obtained by routing the cables in grounded conduit.

• Ensure that the field wiring crosses AC or power cables at a right angle.

• All analog common terminals (ANL COM) are electrically connected inside

the module. ANL COM is not connected to earth ground inside the module.

• Voltage outputs are referenced to ANL COM. Load resistance for a voltage

output channel must be greater than or equal to 1K ohms.

• Current output channels source current that returns to ANL COM. Load

resistance for a current output channel must remain between 0 and 500

ohms.

ATTENTION

Before wiring any analog module, disconnect power from the

SLC 500 system and from any other source to the analog

module.

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Rockwell-automation 1746-NO8V SLC 500 8-Point Analog Output Module Manual de usuario Pagina 11