Recent content by dabnug

I got some electricians that specialize in equipment wiring to come and take a look. After inspecting the wiring and various transformers/power converters they said plug it in. The factory is wrong. Plugged it in and it worked. Sorry for dragging this thing out for so long. I appreciate all...

https://www.schneider-electric.com/en/product/LXM23DU10M3X/motion-servo-drive---lexium-23---single-phase-200...255-v----1-kw---i-o/?range=61015-lexium-23-plus&node=166306927-servo-drives&filter=product_parent_category_id-166406748 The input voltage specification for it when wired for single...

@Guineafowl I get that everyone has told me how to hook up a machine that is manufactured for the US power grid. Except my manufacture is telling me this is wrong. So my line of questions is to educate myself so that I am confident that they are one in the same. @Asymptotic Attached is the...

The Neutral and the ground are only connected at one place in the building. Inside the breaker box. But they are copper wires. If they are connected anywhere in the building even 1000 miles away(assuming 1000 miles of the wires resistance is low enough), then an ohm meter is going to find the...

When I stick an ohm meter into the 120v socket I get continuity between ground and the neutral/return line. So what is the difference?

So sticking an ohm meter onto the neutral line is infinite. Their is no connection, so I am starting to think that the chinese sales man is lying about talking to the engineers. @Baluncore liability was never on the table. Foreign business in chinese court system?

3 Things. 1) Per the manufacture, the machine is wired to have a 220v hot, a null(in my above statements, this is synonymous with neutral/return), and a ground. It requires a neutral and a ground. Within the machine, the Neutral leads of the onboard electronics are not tied to ground(the...

If I had a schematic I would gladly post it. China custom built's do not come with this luxury. The instruction manual is computer print outs.

The reason I say the onboard electronics will have no return, is if I follow the prescribed method of connecting to US 240v. From the breaker you have L1 and L2 as hot and then a ground. From the machines perspective, you need 1 hot, 1 neutral, and 1 ground. Where the ground wire is tied...

@berkeman The machine is grounded to the frame. The hot and the neural wires are connected to the power bus accordingly. Per the factory, one plug is expecting to be hot, 1 is neutral(return), 1 is ground. @Asymptotic while typical 240v US wiring is technically called single phase, in reality...

So my question is what is the difference? In the US if you hook the machine across L1 and L2 your sending two 120v sign waves into the machine that creates a potential of 240v. Which will run the motors, but the onboard electronics no longer have a return. The plug on the machine has three...

I recently bought a machine from china. The power requirements are 220v single phase with 4 motors that draw about 16A collectively. The factory told me 5.5KVA as a minimum power source. If I use a step up transformer from 120v this means 45A max current draw. US 220v(240v) is really 2-phase...