Allen-Bradley 1746-HSTP1 | SLC Stepper Controller Module

Overview

The 1746-HSTP1 from Allen-Bradley is an intelligent stepper controller module for the SLC 500 platform. It integrates seamlessly with other 1746 I/O modules, offering precise motion control for demanding industrial applications.

Technical Specifications

The 1746-HSTP1 supports one axis and delivers up to 250,000 pulses per second for accurate stepper motor control. It features differential inputs and digital outputs, with an input frequency capability of 250 kHz. The module operates with a trapezoidal velocity profile, achieving acceleration from 1 to 2000 pulses per second in just 4 milliseconds.

Power and Backplane Requirements

Engineers rely on the 1746-HSTP1 for efficient power usage within SLC systems. It draws 200 mA from the 5 V backplane and 90 mA from the 24 V backplane, ensuring stable energy distribution across connected modules.

Interfaces and Connections

The 1746-HSTP1 connects with 1746-HT and 1746-HCA cables for reliable I/O communication. Its feedback system supports differential incremental encoders rated at +5 or +15 V, delivering accurate closed-loop performance. With programmable loopback diagnostics, the module ensures continuous system monitoring and dependable operation.

Dimensions and Weight

Compact yet robust, the 1746-HSTP1 measures approximately 5" x 2" x 6" (13 cm x 5 cm x 15 cm) and weighs 15 oz (0.43 kg). This design saves rack space while maintaining durability in industrial environments.

Performance and Applications

The 1746-HSTP1 provides pulse train outputs up to 250 kHz, making it suitable for micro-stepping applications. It responds within 100 milliseconds on input and 2.5 milliseconds on output, enabling precise and efficient motion control. Typical uses include packaging, material handling, and other automation systems requiring high-speed stepper motor control.