WTH Servo Dynamics amp repairman, or WTB rebuilt SD amp

I have a milling machine that has blown three Servo Dynamics PWM SD3030 amplifiers. (Some people call this amp a SD3030-16, but the full name is SD1-3030-163-1. It is very similar to an amp called the SD3060.) Now that I have figured out the power problem that was causing these amps to blow, I am now looking to repair one of them - maybe two if the price is right. This amp drives the 6hp peak/4.3hp continous DC spindle motor on my mill.

If you have the knowledge and experience to repair these amps, please let me know (especially if you are in the Dallas/Fort Worth area). If you can recommend a repair shop that can fix this amp, or if you know of a shop that is selling rebuilt Servo Dynamic amps, I would appreciate knowing about that as well.

Since I have more than one of these amps, I think I can make it easier for someone to fix them by swapping out parts from one unit to the next. I am hoping to find a solution this week (the week of May30 - June 5) so I can get my machine running soon.

Thanks a lot for your input!

Reply to
Loading thread data ...

amplifiers. (Some people

similar to an amp called

these amps to blow, I am

drives the 6hp

know (especially if you

can fix this amp, or if

appreciate knowing about that

someone to fix them by

this week (the week of

There are quite a few businesses that repair and rebuild industrial electronics, but they're not cheap and I don't have any recent experience so can't make a recommendation.

I'm assuming these amps are obsolete. If so, have you considered replacing them with a current model? If you have brush type motors it should be dead simple. A bit more complicated if you have brushless motors and/or tach feedback to the amp. You could check with Copley or AMC to see if they're familiar with your amp and can make a recommendation on a replacement. I personally prefer dealing with Copley, but both are good.

formatting link

formatting link

Ned Simmons

Reply to
Ned Simmons

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.