well after some testing I've narrowed it down to the VFD causing the issue soon as i unhooked the line in to the VFD it quit popping the breaker. i unhooked everything from the VFD to isolate it to the VFD itself. With everything unhooked and just the line neutral and ground hooked up it pops the breaker. Now to try and find a replacement since Grizzly wants 1000 for a replacement unit