I have a Camaster CNC machine in my shop.
To hook the machine to power, we used an existing 50 amp RV plug, and ran a 6 guage wire from the machine to the RV plug and it works fine. I can now plug / unplug the unit when it is not in use.
I live in Florida, and the CNC machine has a lot of electronics including the PC that controls the entire unit. I thought it would be great to add an RV 50amp surge protector on the outlet to protect the unit vs pulling the plug out when I am not using the machine...
I got the following unit: 50 amp portable Surge Protector for an RV with digital display.
RVSurgeProtector.png
The RV wall plug is wired with 2 hot's, ground and a neutral for 220v circuit.
The CNC machine is wired with 2 hots and a ground. There is no specific spot for a neutral.
When I plug the surge protector into the RV plug, it reads everything perfect, when I then plug the CNC machine it shuts down stating that I have an "Open Neutral". There is no way to turn this off, it is a safety item on the RV surge protector to prevent open neutrals in an RV. However, the CNC machine does not need a neutral.
Am I able to use this device with my CNC machine?
As a test, we ran a neutral wire to ground on the cnc side of the wiring and that did not fool the unit, it still detected an issue with the neutral...
For now I have the unit disconnected, but would really like to use a surge protector on this line if possible...
Thanks