Quote Originally Posted by richie00boy View Post
Just measured my spindle and I've got 4.4 ohms between phases. When driven by AC or pulses the impedance seen is higher because of the inductance, so you can't just use simple ohms law to work out the current.
Thanks for that ...I'm measuring 3.5 ohms between all phases. (it was late & I'd been onto this all day...& with the benefit of a good nights kip, I now fully realise that my head was fogged!)