Re: [CAD_CAM_EDM_DRO] heavy CNC lathe retrofit

av1a wrote:

> Hi,
> After doing a great retrofit for my CNC engraving using from
> taiwanese mircrostepping drives.
> I got myself a CNC Lathe (heavy actually)
>
> Mutsibushi Spindle motor -
> Superline Series
> SDN-CF2
> Volts 210
> rpm 1150~3450
>
> Sanyo Denk DC servo drives. x 2
> CN-400T-10
> Super Driver Series
> 7amp Cont. Torque - 55 kg-cm
> 50amp Peak Torque - 400 kg-cm
> RPM - 1000
> Volt- 25v
>
> A turret motor also
>
> what do i need to make it work again ? gecko G320 ?

I think you could stick with these servo drives. they probably
take +/- 10 V signals for velocity command. Does it have DC
tachs? It almost certainly had encoders already on it. If they
do 50 A, you'll get much more performance than with gecko
drives.

If you keep the analog-input servo amps, then you'll need a servo
card with +/- 10 V DAC outputs. There is the servo to Go card,
or my parallel port axis control, which doesn't require an ISA slot.
See http://pico-systems.com/PPMC.html for more info.

Jon