Allen-Bradley 1769-HSC CompactLogix 2/4-Ch High Speed Counter Module

Product Introduction

When high-speed counting and precise position monitoring are critical, the Allen-Bradley 1769-HSC delivers reliable performance. This Compact I/O module is part of the CompactLogix family and also supports MicroLogix 1500 controllers. It directly interfaces with encoders, pulse transmitters, and fast sensing devices, making it essential for applications requiring accurate frequency measurement or totalization.

Technical Specifications Breakdown

The 1769-HSC offers two quadrature (ABZ) differential inputs with an input frequency of 1 MHz. This high-speed capability supports encoder feedback for motion control. The module provides 16 total outputs: 4 physical and 12 virtual. Each physical output delivers up to 1 A per point, with a total module capacity of 4 A. The bus current draw at 5.14 VDC is 425 mA, and at 24 VDC it draws 0 mA. The power supply distance rating requires the module to be no more than four modules away from the system power supply. Isolation voltage is 75 V continuous, reinforced insulation, type-tested at 1200 VAC for 2 seconds. Operating temperature range is 0 to 60 degrees Celsius.

Industry Applications

In manufacturing lines, the 1769-HSC excels at monitoring conveyor speed and position using encoder feedback. Its 1 MHz input frequency ensures accurate tracking even at high speeds. For flow control systems, the module totalizes pulse outputs from flow meters, providing precise volume measurement. These capabilities reduce downtime by enabling real-time adjustments.

Installation & Setup Guidance

Mount the 1769-HSC in a CompactLogix or MicroLogix 1500 chassis, ensuring it is within four modules of the power supply. Use individually shielded, twisted-pair cable for encoder connections. Wire size should be 0.32…2.1 mm² (22…14 AWG) solid copper or 0.32…1.3 mm² (22…16 AWG) stranded copper rated at 90 °C insulation. Do not remove or install the module while power is applied.

Compatibility & Integration

The 1769-HSC integrates seamlessly with CompactLogix and MicroLogix 1500 controllers. It supports high-speed counter and encoder functions, making it compatible with various sensors and encoders that provide differential ABZ signals. The module's virtual outputs can be used for internal logic without physical wiring.

Selection Guide & Purchasing Advice

Before ordering, verify that your controller supports the 1769-HSC and that your power supply can accommodate the bus current draw. The module is a current product, but please confirm lifecycle status and availability with plcmatrix.com. As a trusted supplier, plcmatrix.com offers this module along with expert support to ensure you select the right components for your automation system.