Hi Peter, I find it helps to draw a wiring diagram of where things are wired. That’s different from a schematic which just shows how things are connected.
For example, I've attached the old schematic of my mill wiring (before I removed the two HP-UHU drives and wired in the quadrature encoder for the spindle into the second Chinese BoB). Note to self: Really must update now that I have AC servos on everything. I have colour codes on there for wiring. But it does not show the actual wiring paths. For example the 24V comes out of the Power Supply and splits in two directions. One to the DIN Rail for the MiniBoB->STMBL drive, the STMBL drive and 24V-16V UHU power supply. >From there another DIN rail set of terminal blocks to run power out to the Bergerda Spindle Interface and now the Bergerda interface boards. But the drawing doesn't actually show the DIN rails or wire lengths so there's no way to see if the 24V system has ground loops etc. Not from the Schematic. So I still have to create a new 'mechanical' wiring diagram that shows where rather than how things are connected. John > -----Original Message----- > From: Peter Hodgson [mailto:peterjohnhodg...@gmail.com] > Sent: October-09-21 1:38 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Fwd: Rogue Index Pulses > > Thanks Chris, yes, I will change the shielding ground to the controller end > and isolate the case. > > Is it best practice to run the 5v and 12v �grounds� back to the original 24v > power supply 0v? > > > On 9 Oct 2021, at 00:53, Chris Albertson <albertson.ch...@gmail.com> wrote: > > > > ?I'll say what Gene said. I'd bet on a groubing issue. The schmatic has an > > error, a groubd wire ismissing and also shows random crossing grounds. > > Run everything back to the power supply minus post. > > > > Also you be much better if the sheild was grounded to the controller end. > > Never us a machine and it's mounting bolts as grounds. > > > > > > -- > > > > Chris Albertson > > Redondo Beach, California > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users
WiringOverview-1.pdf
Description: Adobe PDF document
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