Hello,
I have three electro craft e240 servos with these specs (I bought them on ebay - these were the supplied specifications):
DC Permanent magnet Servo Motor
0.22 Nm Stall Torque
1.7 Nm Peak Torque
3.1 Amps Stall Current
24.5 Peak Current
4700 RPM Max Speed
48 VDC Max Voltage
1.1 kg Weight
4.5 kg Radial Load
2.3 kg Axial Load
7.8 v/kRPM Voltage Const
And I'm driving each one with a uhu servo controller. I've built three uhus, and for testing purposes I've been using a pc power supply - 12V, 10A. My router is a MDF construction with a working area around 24x36 inches.
My question is: What kind of power supply would allow me to get the most out of these servos? I know it says 24.5A peak, but I presume this is way in excess of what they'll actually need in practice. Could I for instance use 4 pc power supplies in series? That would give me 48V, 10A (for all three motors). Obviously that's way short of the theoretical max current consumption for three, but would it be adequate in practice?
I really have no experience in this area, so any advice is appreciated. Incidentally cost is something of an issue, but I'm quite happy to build stuff (as opposed to buying things of the shelf).
Any suggestions are greatly appreciated!
Thanks,
Luke