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Product Description

The Allen-Bradley 1746-HSTP1 is a specialized Stepper Control Module designed for the SLC 500 programmable logic controller system. This module provides precise motion control capabilities by generating pulse trains required to drive stepper motor controllers. It is engineered to handle complex motion profiles, making it an essential component for applications requiring accurate positioning and velocity control in automated manufacturing environments.

Features

  • Supports trapezoidal velocity profiles for smooth motor acceleration and deceleration.
  • Wide speed output range from 1 to 250,000 pulses per second.
  • Fast acceleration step rate of 4 milliseconds or less for responsive motion control.
  • Equipped with differential inputs to ensure signal integrity in noisy industrial environments.
  • Designed for seamless integration into the SLC 500 backplane.

Technical Specifications

Module Type Stepper Control Module
Series SLC 500
Speed Range 1 to 250,000 pulses per second
Acceleration Profile Trapezoidal
Acceleration Step Rate 4 ms or less
Input Type Differential
Output Type Digital
Input Frequency 250 kHz
Backplane Current (5V) 200 mA
Backplane Current (24V) 90 mA

Installation Guidelines

  • Ensure the SLC 500 controller is powered down before inserting or removing the 1746-HSTP1 module from the chassis.
  • Use shielded twisted-pair cabling for all differential inputs to minimize electromagnetic interference (EMI).
  • Verify that the module is fully seated in the chassis slot and secured with the integrated locking tabs.
  • Maintain proper ventilation within the control cabinet to prevent thermal stress on the module components.
  • Route signal wiring away from high-voltage AC lines and high-current motor cables to prevent crosstalk.

FAQ

What is the primary function of the 1746-HSTP1 module?
The 1746-HSTP1 is designed to interface SLC 500 controllers with stepper motor drivers, providing the necessary pulse train outputs to control motor speed and position.

Does this module support trapezoidal velocity profiles?
Yes, the module is specifically designed to handle trapezoidal velocity profiles, allowing for controlled acceleration and deceleration of the connected stepper motor.

What are the power requirements for this module?
The module draws 200 mA from the 5V backplane and 90 mA from the 24V backplane of the SLC 500 rack.

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