I was looking for info on a couple of things and I came across the forum so I became a member.I have been in the bussiness for 24 years, qualified at the old SABIEM and are now working for a private company as a field engineer, been doing mods, my own controller electrical upgrades(why do you need to take out the mechanical side if there is nothing wrong with it) and I also designed a zero speed system for two speed ac conversion to vvvf drive on the older systems.

Regards Willem