• Allen-Bradley 1746sc-NO8i
  • Allen-Bradley 1746sc-NO8i
  • Allen-Bradley 1746sc-NO8i
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Allen-Bradley 1746sc-NO8i Analog Current Output Module

Allen-Bradley 1746sc-NO8i Analog Current Output Module

Description

The Allen-Bradley 1746sc-NO8i is a high-density analog output module, engineered by Spectrum Controls as a Rockwell Automation Encompass Partner product for the SLC 500 platform. This module features eight (8)...

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SKU: 1746sc-NO8i
Vendor: Allen-Bradley
Category: Analog Output Module
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Description

The Allen-Bradley 1746sc-NO8i is a high-density analog output module, engineered by Spectrum Controls as a Rockwell Automation Encompass Partner product for the SLC 500 platform. This module features eight (8) isolated current output channels, providing double the channel density of standard SLC 500 output modules while occupying only a single slot in the chassis. It is specifically designed for high-precision control of modulating field devices, including variable frequency drives (VFDs), control valves, and actuators, as well as for signal retransmission to data acquisition systems.

Features

  • Eight (8) independent current output channels.
  • High-resolution 16-bit digital-to-analog conversion for precise process control.
  • Single-slot footprint for efficient chassis space utilization.
  • Supports standard industrial output ranges of 0–20 mA and 4–20 mA.
  • Compatible with standard SLC 500 backplane power requirements.

Applications

This module is ideal for industrial automation environments requiring high-density analog control, such as chemical processing, water treatment, and manufacturing assembly lines. It is commonly used to interface with field actuators and to provide feedback signals to recorders or secondary control systems.

Technical Specifications

Manufacturer Spectrum Controls
Product Line SLC 500
Module Type Analog Current Output
Number of Outputs 8 Channels
Resolution 16-bit
Output Signals 0–20 mA, 4–20 mA
Backplane Current (5V DC) 120 mA
Backplane Current (24V DC) 240 mA
Operating Temperature 0 to 60 degC (32 to 140 degF)
Storage Temperature -40 to 85 degC (-40 to 185 degF)

Installation Guidelines

  • Ensure the SLC 500 chassis power is disconnected before inserting or removing the module to prevent electrical damage.
  • The module should be installed in a standard SLC 500 I/O slot; ensure the module is fully seated and the retaining screws are tightened.
  • Use shielded twisted-pair cabling for analog signals to minimize EMI/RFI interference.
  • Terminal screw torque should be maintained between 7–9 lb-in.
  • Maximum wire size for terminal connections is 14 AWG.
  • Maintain adequate ventilation within the enclosure to ensure the ambient temperature remains within the 0 to 60 degC operating range.

FAQ

Is the 1746sc-NO8i compatible with standard SLC 500 chassis?

Yes, this module is designed to be a direct fit for the SLC 500 backplane architecture, allowing for easy integration into existing systems.

Does this module require external power?

The module draws its power from the SLC 500 backplane (5V DC and 24V DC). Ensure your power supply can accommodate the additional load of 120 mA at 5V and 240 mA at 24V.