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hWexla – Switch motor

hWexla is a switch motor designed in Model Railroader Club Brno I to switch their turnouts. The project is opensource & openhardware, this repository contains all data.

Features

  • Model 9g servo used as a drive force.
  • Magnetic detection of movement. No mechanical parts detecting servo movement.
  • Installation via unified D-SUB 25 connector.
  • 2 inputs for position setting.
  • 2 outputs for position indication (up to 200 mA).
  • 2 IO pins for debug/panel.
  • 2×3 relay for switching track current (up to 3 A).
  • Diagnostic interface.
  • IO protection.
  • Slave mode.
  • Input voltage: 10–20 V.
  • Stabilizing of servo-voltage is solved in external board – hWexla contains only connector. Stepdowns like RB0005 are expected to be used.

Requirements

In czech only

Authors

hWexla was designed in Model Railroaders Club Brno by Jan Horáček.