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Description
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 1746-HSTP1 |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Product Type | SLC 500 Stepper Controller Module |
| Number of Axes | 1 |
| Compatible Interfaces | Stepper Motor Driver (Translator) |
| Speed Range | 1 to 250,000 pulses per second |
| Acceleration Range | 1 to 2000 pulses per second² (Trapezoidal profile) |
| Acceleration Step Rate | 4 milliseconds or less |
| Input Type | Differential |
| Input Frequency | Up to 250 kHz |
| Output Type | Differential Pulse (CW/CCW or Pulse/Direction) |
| Backplane Current (5V DC) | 200 mA |
| Backplane Current (24V DC) | 90 mA |
| Storage Temperature | -40°C to 85°C |
| Operating Temperature | 0°C to 60°C |
| Humidity | 5% to 95% non-condensing |
| Certifications | UL-Listed, CSA-Certified, CE-Marked |
| Weight | Approx. 0.4 kg (0.9 lbs) |
| Dimensions (W x H x D) | 127 x 51 x 152 mm |
Main Features and Advantages
High-speed precision control: The 1746-HSTP1 generates a pulse train output at speeds from 1 to 250,000 pulses per second, supporting both CW/CCW and pulse/direction output modes to accommodate various stepper translator configurations -2-6. This high-speed capability enables micro-stepping applications and fine-resolution positioning. The programmable trapezoidal acceleration profile—with acceleration rates from 1 to 2000 pulses per second² and step response of 4 ms or less—ensures that motors start and stop smoothly without loss of synchronization -1-5.
Versatile homing and positioning: The 1746-HSTP1 offers multiple homing methods to establish a precise reference position -6-9. It supports finding home to a limit switch, a proximity switch, or a combination of a proximity switch and an encoder marker pulse, providing flexibility for different mechanical configurations -6. With the ability to track absolute positions up to ±8,388,607 steps, the 1746-HSTP1 eliminates the need for external position counters and simplifies programming of complex move sequences -1-11.
Robust feedback and diagnostics: The 1746-HSTP1 features differential inputs for Encoder Channel A, Channel B, and Marker, allowing connection of quadrature encoders for position verification and stall detection -2-6. Five diagnostic LED indicators (RUN, CW, CCW, Error, Fault) provide immediate visual feedback on module status and motion direction, expediting troubleshooting -2-6. A built-in diagnostic mode also enables system wiring tests before commissioning -9.
Comprehensive SLC integration: The 1746-HSTP1 is compatible with all SLC 500 processors including SLC 5/01, 5/02, 5/03, 5/04, and 5/05 -1-6. It is configured entirely through the backplane using configuration and command data files, with no hardware switches or jumpers to set -6. The module’s scan time impact is processor-dependent, ranging from 0.45 ms for SLC 5/05 to 2.0 ms for SLC 5/01 -2.
