Re: [CAD_CAM_EDM_DRO] Servos, Drivers etc.

Sorry, one other thing. Work out the max pulse output from your control pc.
At 2000ppr and 2:1 reduction and .2 leadscrew, you will need 20,000 pulses
per inch you would need a 40khz step rate just to reach 120ipm.

Thats right isnt it?

Hope this helps.

Regards,

Jason Cox.

----- Original Message -----
From: camerashy44 <camerashy44@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, July 18, 2003 9:59 AM
Subject: [CAD_CAM_EDM_DRO] Servos, Drivers etc.


> I have finally decided on the servos for my mill conversion. They are;
> Reliance Electric DC Servo
> Micro 100 Series
> NEMA 34 Frame
> Model 0660-04-076
> Nominal Speed Rating: 1750 RPM
> Nominal Voltage Rating: 120 Volts
> Back EMF Constant, ke = 68 V/kRPM
> Torque Constant, kt = 5.75 lb-In/Amp
> Motor Body Diameter: 3.38"
> Motor Body Length: 6.5
> Shaft Diameter: 0.375" x 1.13" Long
> Integral Encoder: Hewlett Packard/Agilent
> Model: HEDS-5505 A06
> 500 lines per rev in quadrature, yielding 2000 counts per rev.
> Is there anything that I should consider with this motor that I may
> have over looked?
> I am assuming (and this is dangerous) that the Geko drives will not
> have enough voltage to run these motors at their maximum. Am I
> correct? What other drives are recommend (Rutex)?
> What will I need in the way of a power supply?
> I am using 3/4" x .200 lead ball screws and nuts.
> Wayne
>
>
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