Gecko Factory outlet...and more

[OCNC]

Originally Posted by plateroomred Chris, Thanks for taking the time to respond. First a quick explanation. I purchased the cnc lite package from camsoft about 3 months ago which included three 320 gecko drives. My servo motors are made by powertron, rms amps equal 14.6 amps and the tag says max volts are 146 per servo motor. These are from a 1984 boss 9, r2e4 Bridgeport. Since the gecko,s will only handle 80 volts, a 72 volt power was recommended, I believe from camsoft. At any rate I would like to know where I can find the appropriate transformer,rectifier and cap. if possible vendor names and part numbers.I have been told several different things and am familiar with the formula. I figure a transformer around 52 volt secondary should work with about a 30000 micro farad cap. I am still not sure about the amperage. Since the available voltage will be about half of the max. Do I really need max amperage? I have found a 36v power supply but am not sure if I want to give up that much speed. Any help would be greatly appreciated. Thanks, Larry

Larry-
What's the amperage rating on the 36v supply? What amount of torque do you need from the servos? The torque developed and amperage drawn by a servo are directly related. It's difficult to proceed without some knowledge of the torque requirement. What are you going to drive with the servos?

Smaller value capcitors can be wired parallel to reach higher capacitances. Working voltage must be higher than the output voltage. For example six 100v 5600mf cap's would give you 33600mf which would be close enough to the 30000mf that you suggest above. (P6112-ND from Digikey for the 5600mf cap's).

For a rectifier look at 36MB40A-ND (35a, 400PIV) from Digikey.

For a transformer look at TE59902055 (secondary 55vac @ 18a). This might not be quite quite large enough but gets you into the ballpark.

It also might be helpful if the moderator for this thread reposted your question to a different forum as your question is off topic and might not be getting enough exposure.

Chris

[plateroomred]

Chris,
Once again thanks.
The amperage of the 36 volt p.s. is 25. The torque rating on each motor is 30lb/in. As you can see I am new at all of this, including knowing where to post.
Larry

[aterren]

Their material handling is totally not cool. Stacking boards is a real no - or at least it was on the automotive electronics assembly line that I was responsible for. Would you want to be that tiny capacitor on the bottom of the stack?

[OCNC]

Originally Posted by plateroomred Chris, Once again thanks. The amperage of the 36 volt p.s. is 25. The torque rating on each motor is 30lb/in. As you can see I am new at all of this, including knowing where to post. Larry

Larry-
At the top of this page is a navigation bar. Click on 'Discussion Forums'. When you get to the 'Discussion Forums' page look for the 'General Electonics' forum. Click on that. At the top of that page you'll see a 'New Thread' button. Click on that. Give your question a title and repost it. Being in the tail end of this Gecko thread is keeping you from getting more info on your problem.

I'm not sure how much of an effect the lower voltage is going to have on speed. Have you been able to find the manufacturer's spec. sheet for your steppers? They often have torque vs. speed curves, etc.

You should get many responses to a question like this once it's in the correct forum.

Chris