Hi, I have a hitachi VFD (WJ200-022SF). It is a single phase 200v vfd for a 2.2kw chinese spindle. I currently have everything broken out on a board to test before I put it in a cabinet, I just took two legs 120v coming from the shop and connected them to the L1/N teminals. I took the common (which is tied to ground/conduit at the panel) and connected it to the heatsink ground on the VFD. This is probably not ideal and I am assuming that there should probably be a true ground and no common but that is the way the shop was wired long ago. I have confirmed that there is 240v between the two legs powering the vfd, I have run the wires through an additional ABB breaker before the VFD but apart from that, the wires are just connected to the rest of the shop and are also powering lights and potentially other things. There are no filters/chokes of any kind. The VFD power up but it immediately throws a code (E30.1). According to Hitachi, E30 indicates:
"An internal inverter error has occurred at the safety protection circuit between the CPU and main driver unit. Excessive electrical noise may be the cause. The inverter has turned OFF the IGBT module output."
I am guessing that electrical noise is the culprit and I planned on getting some type of filter but I want to get the thing working and then improve it as needed. I tested it with/without the common wire, I also set all of the specs in the vfd to match the motor (amp/kw/hz/volts, etc). I Has anyone else had this problem? Does electrical noise seem like a feasible explanation? What type/model of filter is recommended for this application?
Thanks