A-B 1746-IV8 Module Rockwell SLC 8 Digital Inputs

cerniera a tal scopo

Hinweis zur Installation

Die Montageplatte (linke Endplatte) für das Netzteil verfügt über die in der 

nachfolgenden Abbildung dargestellten Schrauben. Die mittlere und die rechte 

Endplatte werden durch ein Gussform-Kupplungselement in Position gehalten, 

sodass keine Schrauben erforderlich sind.

Connect Ground Bus to Grounding-Electrode System

The grounding-electrode system is at earth-ground potential and is the central ground for all electrical equipment and ac power within any facility. 

Use a grounding-electrode conductor to connect the ground bus to the grounding-electrode system. 

Use at minimum 8.3 mm2 (8 AWG) copper wire for the grounding-electrode conductor to guard against EMI. 

The National Electrical Code specifies safety requirements for the grounding-electrode conductor.

Features and Benefits

Select I/O modules to exactly match your application. Combination

modules allow you to have inputs and outputs in a single slot for

efficient use of your chassis space.

Expand the I/O capacity of your fixed controller system. Two discrete

I/O modules can be added to the fixed controller’s 2-slot expansion

chassis increasing the flexibility of the system.

All relay contacts are Silver Cadmium with Gold overlay. Gold plating

resists oxidation and tarnishing resulting from non-use. Silver

Cadmium acts as an excellent conductor.

High-density 32-Point DC I/O and fast response DC inputs are available.

These modules allow you to apply the SLC 500 processors in a

broader spectrum of control applications.

Open-circuit Detection (Bit 12)

The module tests all enabled channels for an open-circuit condition 

each time it scans its inputs. Possible causes of an open-circuit 

include:

• broken thermocouple or CJC thermistor.

• thermocouple or CJC thermistor wire cut or disconnected.

• Usare una treccia in rame da 2.54 cm o un filo in rame da 5.2 mm2 (10 AWG) per collegare i singoli

chassis, la custodia ed un bus di terra centrale montato sul pannello posteriore

• Usare una custodia in acciaio per evitare disturbi elettromagnetici (EMI)

• Assicurarsi che il visore posto sullo sportello della custodia sia uno schermo laminato o un substrato

ottico conduttivo (per bloccare gli EMI)

• Installare un cavo di massa per il contatto elettrico tra lo sportello e la custodia; non utilizzare la

Contacting Rockwell Automation

If you need to contact Rockwell Automation for assistance, please have the following information available when you call:

• A clear statement of the problem including a description of what the system is doing, LED indicator status, and bit status of I/O image words (channel configuration and status) for the module

• Fault code if the SLC processor is faulted

• Processor type and firmware (FRN) number from label on processor

• A list of things you have already tried to remedy the problem

• Hardware types in the system including I/O modules and chassis