Rockwell-automation 1769-IF4XOF2 Compact 8-Bit Low Resolution Analog I Manuale Utente Scaricare il pdf (Pagina 38)

Publication 1769-UM008A-EN-P - November 2001

3-16 Installation and Wiring

Wire Size and Terminal Screw Torque

Each terminal accepts up to two wires with the following restrictions:

Analog Input Wiring

After the analog module is properly installed, follow the wiring

procedure below. To ensure proper operation and high immunity to

electrical noise, always use Belden™ 8761 (shielded, twisted-pair) or

equivalent wire.

To wire your module follow these steps.

1. At each end of the cable, strip some casing to expose the

individual wires.

2. Trim the signal wires to 2-inch lengths. Strip about 3/16 inch (5

mm) of insulation away to expose the end of the wire.

Wire Type Wire Size Terminal Screw Torque Retaining Screw Torque

Solid Cu-90°C (194°F) #14 to #22 AWG 0.68 Nm (6 in-lbs) 0.46 Nm (4.1 in-lbs)

Stranded Cu-90°C (194°F) #16 to #22 AWG 0.68 Nm (6 in-lbs) 0.46 Nm (4.1 in-lbs)

ATTENTION

To prevent shock hazard, care should be taken when

wiring the module to analog signal sources. Before

wiring any analog module, disconnect power from

the system power supply and from any other source

to the analog module.

ATTENTION

When wiring an analog input, take care to avoid

connecting a voltage source to a channel configured

for current input. Improper module operation or

damage to the voltage source can occur.

Never connect a voltage or current source to an

analog output channel.

cable

signal wire

drain wire

foil shield

signal wire

Cut foil shield

and drain wire

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Rockwell-automation 1769-IF4XOF2 Compact 8-Bit Low Resolution Analog I Manuale Utente Pagina 38