quote:here is where I am conflicted, for the control system only ONE ground was required, having a second ground raised havoic.
I worked for an EMS (energy management systems) contractor for several years. Lots of multi-conductor (with one bare ground wire), shielded cables for a multitude of sensors - temp, chillers, boilers, HVAC, etc.
One of the techs - the 'brains'
If we grounded both ends, that bare wire became an antenna of sorts, and would then gather all sorts of EMF (electrical/magnetic field) interference, radiate it into the cable wiring, and screw up the low-voltage EMS sensor signals carried by the cable. We were also instructed to never run our cabling closely parallel to any electrical power conduits, and to only cross such conduits at right angles.
But for automotive applications, and especially with our Panteras, multiple, secure grounds are an asset, not a problem.
Larry - IBEW #100, retired
My favorite tech story was the one who came out to the new middle-school campus and started to berate us for faulty wiring, as multiple sensors were not displaying on his laptop system overview. Turns out those sensors were never placed on the blueprints used for our installation.