I re did the end on the earth wire and tried it again and it still gave the fault. i turned the computer of and gave up, then after reading the above i unplugged the spindle and tested it and no fault! i re connected the spindle and it was back working!

i ran the machine yesterday for over 9hours cutting and all was ok so I'm not sure! I'm going to order a back up spindle and vfd to have on standby and may also replace the cable.

would love to know why it triped the power!

many thanks