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Use an external SSR for power control #43

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PBrunot opened this issue Sep 7, 2024 · 0 comments
Open

Use an external SSR for power control #43

PBrunot opened this issue Sep 7, 2024 · 0 comments
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@PBrunot
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PBrunot commented Sep 7, 2024

When integrating FabOMatic on power lines for FabLab equipment, large DC currents may be involved.

E.g. a Zortrax M200 24V output power supply is 13.4A max.
E.g. an Ender3 24V ouput power supply is 15 A max

PCB in HW REV 1.3 improves somewhat the situation with larger tracks and isolation, but this is still not fully satisfying.
It is possible to solder wires on the PCB to improve current carrying capabilities and avoid burning the tracks.

A more robust solution could be to use an external solid-state relay with 25A rating with screws for connection.

Topics to be handled:

  • Connections from board to SSR command in addition to on-board relay ?
  • Make a modular design with relay or SSR ?
  • Power dissipation of SSR (??)
  • Fixtures inside FabOMatic 3D case for SSR
  • Space/Isolation requirements

May be missing in FabLab:

  • Wiring ferrules
  • DC-DC SSR / AC-DC SSR
@PBrunot PBrunot added the bug Something isn't working label Sep 7, 2024
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