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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
Posted to dfw.forsale,alt.machines.cnc,rec.crafts.metalworking,sci.electronics.repair
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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! -- Mario Please be sure to remove the "REMOVETHECAPITALS" text from my email address before replying to me. |
#3
Posted to dfw.forsale,alt.machines.cnc,rec.crafts.metalworking,sci.electronics.repair
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WTH Servo Dynamics amp repairman, or WTB rebuilt SD amp
On Tue, 30 May 2006 14:14:31 -0500, Mario
wrote: 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. Probably all failed the same way. -- Cliff |
#4
Posted to dfw.forsale,alt.machines.cnc,rec.crafts.metalworking,sci.electronics.repair
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WTH Servo Dynamics amp repairman, or WTB rebuilt SD amp
In addition to the two local repair shops I mentioned, I have contacted several repair companies that are
not local. They all want at least $420 to start, plus parts or whatever else. Plus shipping, plus a two week wait time (unless you pay for them to rush yor order)... so I was hoping to find a local electronics guy who fixes these for a living and who would give me a better deal than going through these comapnies. Also, so will not quote until you send them the unit. The amp does receive feedback from the tach. However, I just found a local company (in Irving, Tx), where it looks like the guy is going to give me a better price than anywhere else, so I am going to try him out. I'll let you guys know how he does if anyone is interested. Thanks Ned! Ned Simmons wrote: In article , says... 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. 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. http://www.copleycontrols.com/ http://www.a-m-c.com/ Ned Simmons -- Mario Please remove the "REMOVETHECAPITALS" text from my email address before replying to me. |
#5
Posted to dfw.forsale,alt.machines.cnc,rec.crafts.metalworking,sci.electronics.repair
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WTH Servo Dynamics amp repairman, or WTB rebuilt SD amp
On Wed, 31 May 2006 15:04:12 -0500, Mario
wrote: In addition to the two local repair shops I mentioned, I have contacted several repair companies that are not local. They all want at least $420 to start, plus parts or whatever else. Plus shipping, plus a two week wait time (unless you pay for them to rush yor order)... so I was hoping to find a local electronics guy who fixes these for a living and who would give me a better deal than going through these comapnies. Also, so will not quote until you send them the unit. The amp does receive feedback from the tach. However, I just found a local company (in Irving, Tx), where it looks like the guy is going to give me a better price than anywhere else, so I am going to try him out. I'll let you guys know how he does if anyone is interested. Have any trade schools that teach electronics nearby? Call & ask for such instructors if so ... either they or a hungry student or class project ... -- Cliff |
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