Rockwell Automation 1746-NO8V SLC 500 8-Point Analog Output Module - Manual (Page 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.