RS485 for VFD controla and Mach 3

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RS485 for VFD controla and Mach 3

Postby gills » Wed May 22, 2024 11:53 pm

Hey guys, I am setting my first cnc mill and I am using just two axis X and Z. I didn't really want to invest in another AXBB-E controller, but I have an older DB25 basic BOB and a UC100 not being used. I can control everything through my BOB except for the VFD spindle. I have been researching the USB RS485 and feel confident on the install and files. My question is, once it is installed and up and running and I load a cut program into Mach 3, will Mach automatically turn the spindle on like it normally does with my AXBB-E or do I have to manually turn it on and off through the Mach 3 screen? I appreciate any experienced opinions out there.
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Re: RS485 for VFD controla and Mach 3

Postby ger21 » Thu May 23, 2024 11:06 am

With Mach3, you'd need to use Modbus to control the VFD with RS-485. When set up correctly, yes, it will turn it on and off with M3 and M5 g-codes.
Gerry
UCCNC 2022 Screenset - http://www.thecncwoodworker.com/2022.html
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Re: RS485 for VFD controla and Mach 3

Postby gilles974 » Sat May 25, 2024 6:19 am

bonjour
c'est un sujet qui m'intéresse fortement, j'ai jamais trouvé de docs sur modbus. est ce que cela existe ??
suivre bêtement un tuto sans en comprendre un minimum c'est nul

salut
gilles
Que les copeaux jaillissent

gilles
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Re: RS485 for VFD controla and Mach 3

Postby charliem » Sat May 25, 2024 6:12 pm

bonjour
c'est un sujet qui m'intéresse fortement, j'ai jamais trouvé de docs sur modbus. est ce que cela existe ??
suivre bêtement un tuto sans en comprendre un minimum c'est nul


Il y a une tonne d'informations sur le Web si vous effectuez une recherche.

https://www.homanndesigns.com/pdfs/Using_Modbus_with_Mach3.pdf
Regards
Charlie M
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