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.

Parts

1. PCB
2. Firmware
3. WEXLACON PCB
4. Diagnostic PCB

Requirements

In czech only

Authors

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