RE: [CAD_CAM_EDM_DRO] Servo Drive Question..Help!

I am running Bridgett (Bridgeport Series II) with similar motors on a 65
- 68 VDC power supply and Gecko G320 drives. The breakout board is a
very basic unit from Dan at Camtronics that sells for about $30. Been
running this setup for about 2 years and it is all working great. Yes, I
could get faster rapids with a higher voltage power supply. But the
current setup is very conservative and reliable with X & Y rapids at 120
ipm. Seemed like plenty to me and I don't have to worry about blowing a
drive.

Tim
[Denver, CO]
Sherline & Taig products at Deep Discount
Mach1 & DeskCNC with credit card ordering
www.KTMarketing.com/Sherline
e-mail me at Timg @ KTMarketing.com for items not yet listed

> -----Original Message-----
> I am currently setting up a bridgeport for CNC operation and I
> intend on controlling it with Mach1 on a PC. The servo motors I have
> are Allen Bradley 40.5 in/lb motors they are rated at 2500 RPM and 13
> Amps continuous and 30 Amps peak. 40 volts/K Which makes them about a
> 100 volt motor. The encoders are 5 volt/160 MA. I need help on
> locating the proper drives for these. I spoke with the tech at Gecko
> and he said their 320 or 340 drive would work however, I would have
> to run them at a lesser voltage to accomodate their drives and their
> 20 amp limit would not be an issue as their drive will only allow 20
> amps thru. He went on to say that this would effect acceleration and
> top speed but they would still have about the same torque. This is a
> 4-axis machine and I'm only running 3 of these motors as the "A" axis
> (rotary table) will operate with a smaller motor. I'm needing some
> direction on a suitable breakout board. Ive looked at the PMDX 120
> and the Sound Logis Mach1 board. Which one of these boards is better?
> for My application? If someone would, just breifly outline the best
> affordable configuration i.e. Breakout board, Servo drives and Power
> Supply. What voltage and amperage would you suggest using the Gecko
> 320's. Any input on this would be greatly appreciated.
>
> Ron
>
>
> Addresses:
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