Connect 2 power supplies

[Stephen Prescott]

I have the original laser power supply and now a separate 24 volt one ( for the steppers and Ruida controller ), I have the two supplies connected to each other ( ground ) through the laser control connections on the Ruida and then back to the original power supply,

Question is should I add an additional connection from the 24 volt Ground, the negative output to another on the Ruida some where ??
Thank you foe any help...........stevep

[Jeffrey Aley]

Generally, you only want to have a single ground (earth) connection between supplies. Having multiple ground connections will cause a "ground loop", which is a Bad Thing and can cause unusual behavior in electronic circuits.

Regards,

-Jeff

[Stephen Prescott]

Thanks Jeff