Re: Electrical setup for mains voltage single phase servos ?
They must be large servo's if they require 3ph, are you sure they will be happy running off 1ph?
You could use one single contactor for all servo's if you size it accordingly, it should be a motor rated contactor of the correct ampacity.
24vdc is pretty much the standard now for control voltage.
Here in N.A. one regulatory instruction is the NFPA79, Electrical Standard for Industrial Machinery, I believe there is a copy out there if you Google.
It should be the same, or similar requirements for Australia.
When building enclosures, the heat generating components are generally placed at the top of the cabinet.
Along with all fusing etc.
Don't forget to set up a star point Earth Ground where the service ground is also terminated.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.