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  • Milkof
  • Milkof
03 Sep 2025 21:03
Replied by Milkof on topic Connecting my 7i96s to the VFD

Connecting my 7i96s to the VFD

Category: Driver Boards

Hello everyone,
I am also trying to connect the Mesa7i96s card to a Y620-A VFD.
I connected the pins as mentioned in the post above
22 - SPINDLE- to COM
23 - SPINDLE OUT to AI1
24 - SPINDLE+ to +10 V
S1 --> OUT4A
OUT4B --> COM
S2 --> OUT5A
OUT5B --> COM
The M3, M4 and M5 commands work, but I can't control the speed.
Any ideas?
Thanks
Milko
  • scotta
  • scotta's Avatar
03 Sep 2025 20:38
Replied by scotta on topic Remora - Rpi Software Stepping Using External Microcontroller via SPI

Remora - Rpi Software Stepping Using External Microcontroller via SPI

Category: Computers and Hardware

Great to hear you are making progress.

No need for the SPI_clk_div=32 in the loadrt command line, that is for the RPi4/3.

What fault / error is generated when the machine stops? I've still got the Octopus and RPi setup on the bench, will look to try your config again over the weekend.
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