Rockwell-automation 1746-NI8 SLC 500 Analog Input Module Instructions Manuel d'utilisateur télécharger pdf (Page 11)

SLC 500™ Analog Input Module

Publication 1746-IN006A-US-P

Wiring Single-Ended Inputs

The following diagram shows typical wiring for the 1746-NI8 module.

• Use shielded communication cable (Belden™ 8761) and keep length as short as

possible.

• Connect only one end of the cable shield to earth ground.

• Connect the shield drain wires for channels 0 to 3 to the top shield terminal.

• Shield terminals are internally connected to chassis ground which is connected to

earth ground via the SLC backplane.

• Single-ended source commons may be jumpered together at the terminal block.

• Channels are not isolated from each other.

• If a different signal source has an analog common, it cannot and must not be

connected to the module.

• Common mode voltage range is ±10.5 volts. The voltage between any two

terminals must be less than 15 volts.

• The module does not provide power for the analog inputs.

• Use a power supply that matches the transmitter (sensor) specifications.

IMPORTANT

Follow these guidelines when wiring the module.

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Rockwell-automation 1746-NI8 SLC 500 Analog Input Module Instructions Manuel d'utilisateur Page 11