racking modules

[jplebre]

Hey guys

Some weeks ago I posted some questions on a PSU. That PSU is supposed to power up a multi-modular instrument preamp/all around processor, built with daughter cards.
(I kinda like that concept it's very similar to the way NEVE and SSL build their stuff, I'm used to work with it and work on a "per card" basis.

Now I have a question for the grounding:
Should I be doing star grounding to the secondary side of the PSU or to the common ground point?


Also, should I twist the positive and negative supply (+/-15v in this case), or twist ground and supply?

[jplebre]

Bump anyone? thank you

[Earthscum]

If that's the ground from the mains, it should connect to the chassis only. If you have +/-15V, you should have a ground from those. Your mains supply ground is for protection, in case something shorts against the case it shunts straight to ground, instead of using you as a writhing potentiometer to ground. Never connect it into the circuits.