On Thursday 26 December 2019 01:49:40 andrew beck wrote:
> Hey guys.
>
> I have a bit of a story here and some questions.. I Have been seeing
> the emails coming through and there looks like there is a massive pool
> of knowledge here in the user list and the forum. So here it goes
> hopefully
> On 26 Dec 2019, at 06:49, andrew beck wrote:
>
> That meant that the brake actually had a lot more than 24 volts in
> it relative to machine earth(like 200v I am guessing, it was a big bang!)
That shouldn’t normally matter. I would be very surprised if the brake winging
insulation wasn’t
A ground loop is then a single device is connected to ground more than
once. A good example is a motor driver. It might in a "power"
input called "+" and "-" with the minus side grounded to the AC mains
ground or a chassis frame ground. The in addition there is a
logic level control
I think you are confusing ground and neutral. Ground should never
move off zero. But the neutral can be up to about 5 volts above
ground.
On Thu, Dec 26, 2019 at 2:26 PM N wrote:
>
> Current used to power device will cause some voltage drop in ground so grond
> potential at device will be
Current used to power device will cause some voltage drop in ground so grond
potential at device will be higher. Ground potential will also vary with power
used by device. This higher potential might cause a problem if there for
example is digital communicatin between devices.
> A ground loop
