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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Hi all,
I've tested out my new VFD and it will operate like I want it to. So now I ready to permanently mount it. Power will come from a local circuit breaker box which the contains the hot wires, a wire from the main breaker box which is from the neutral/ground bus, and the local box is grounded by conduit. The ground wire in the local box is not tied to the box (but could be). The VFD has 1/2" knockouts to cable to. The physical connection is metal. It is connected to the place where they also have ground terminals. So if I run conduit from the local breaker box to the VFD, then connect the ground wire to the VFD am I going to run into problems (ground loops, against code to connect)? Same issue would apply connecting the lathe. (grounding by conduit & wire). I could use insulated connectors to connect the conduit. But they need to grounded somewhere for shielding purposes. I suppose everything (VFD, lathe) could be grounded only by conduit, but this doesn't seem right/safe. Anyone know the correct procedures for this? Thanks, Wayne D. |
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