1746-OV16 | Allen-Bradley SLC 500 Digital DC Output Module

Product Overview

The Allen-Bradley 1746-OV16 serves as a high-density discrete output interface for the SLC 500 controller platform. This module features 16 independent output points designed for sinking (NPN) wiring configurations, enabling precise control over DC loads such as solenoids, interface relays, and pilot lights. We supply this unit as 100% Brand New and Original, ensuring your industrial control system maintains peak switching performance with genuine Rockwell Automation hardware.

Technical Specifications

Engineering Advantages

• Extended Voltage Flexibility: The 1746-OV16 operates across a wide 10-50V DC range. This allows a single module to support various industrial DC standards, reducing spare parts inventory for facilities utilizing both 12V and 48V DC auxiliary power systems.

• Rapid Response Switching: The solid-state design achieves a 0.1 ms "On" delay. This high-speed performance facilitates millisecond-accurate timing for high-speed sorting, packaging, and bottling applications where mechanical relay latency would cause process deviations.

• High-Current Surge Handling: Integrated circuitry handles surge currents up to 3.0 Amps. This robustness protects the module from the initial inrush current typical of inductive loads like solenoid valves, preventing premature semiconductor failure.

• Efficient Heat Management: The module utilizes low on-state voltage drop technology (1.2V max) to minimize internal heat dissipation. This thermal efficiency allows for high-density slot population within the SLC 500 chassis without the immediate risk of thermal shutdown.

• Simplified Troubleshooting: Every output point includes a dedicated status LED on the front panel. Maintenance teams can instantly verify PLC logic execution against field device states, significantly reducing downtime during system commissioning or fault finding.

FAQs

• What is the difference between a "Sink" and "Source" module?

  The 1746-OV16 is a Sink module, meaning it provides the path to the negative rail (0V DC) for the connected load. You must connect the other side of your field device to the positive supply voltage.

• Can I use this module to drive a 48V DC relay?

  Yes. Since the module supports up to 50V DC, it safely controls 48V DC loads. Ensure your external power supply and the relay's current draw do not exceed the 0.5A per point limit.

• How does ambient temperature affect the current rating?

  The 1746-OV16 features a thermal derating curve. At 30°C (86°F), it supports 0.5A per point, but this drops to 0.25A at 60°C (140°F). Always account for cabinet internal temperatures when calculating your total load.

• Is this module compatible with the MicroLogix 1500?

  Yes, the 1746-OV16 installs directly into a 1764-TBP or 1764-LRP MicroLogix 1500 system when using the 1769-series expansion bus or via a compatible SLC 500 rack link.