Electronics Repair

Electronics And Heat Don’t Mix

Posted July 10, 2017 by Omar Mediano

Categories: Blog, Electronics Repair, Industrial Electronics Repair, Industrial Maintenance, Innovative-IDM

Tags: , , ,

As we here in Texas groan about high temperatures of summer, it’s important to remember that we aren’t the only ones suffering from the heat. Electronics and heat don’t mix and the combination can be disastrous.

As temperatures rise the number of businesses that lost power or experienced brown increase. During that time, many people turn on their generators or use battery power to keep machines running. What they didn’t realize was – the heat could be damaging their equipment.

Circuit systems within electronics work best at lower temperatures. Allowing systems to run for prolonged periods of time in high temperatures can decrease the longevity and reliability of devices. Solid state electronics actually begin to break down and fry at temperatures much above 120 degrees. However, the hotter the temperature – the less functional the machine will become. Most systems tend to run 10 to 20 degrees hotter than room temperature.

Within the era of technology electronic devices such as drives (VFDs), programable logic controllers (PLCs), human machine interfaces(HMIs) and power supplies have dramatically decreased in size. This causes a lot of systems to run with a higher heat density. While many companies have worked to include cooling systems within their products – cooling systems cannot keep up when devices are left in areas without air conditioning. Believe it or not, just surfing the web on your cellphone or playing games on your laptop may sound like the perfect idea during a blackout, but that heat can even damage them!

When the power is off or it is not stable and rooms temperatures are high, limit use of electronic devices.  Cooling units similar to small air conditioners can be purchased and installed to keep equipment cabinets cool.  Placing a fan in front of a cabinet with the door open will provide temporary relief, but could cause more environmental damage to the drive by allowing foreign material, dirt and water into the cabinet.  Just remember. The longer the use, the hotter the object will get.

If you experience issues with any electronic device after exposure to heat send it to Innovative IDM and we will provide a free evaluation. IIDM also stocks and sells new world class VFDs, PLCs and HMIs and can do turnkey installations. So, if you have a piece of equipment you’d like to check on repairing, contact your IIDM sale representative or email us at repairs@iidm.com.

Marc Phelps

Marc Phelps is manager of the Innovative-IDM repair facility in Houston. You can contact him at marc.phelps@iidm.com

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Industrial Drive Repair: Replace or Repair?

Posted February 19, 2016 by Pepper Hastings

Categories: Blog, Electronics Repair, Industrial AC Drive, Industrial Electronics Repair

Tags: ,

Industrial drive repair is an important discussion point in most manufacturing facilities. Often, the discussion is whether it’s worth repairing a VFD. Or just buy a new one.

Industrial Drive Repair

Industrial drive repair can be a tricky decision. When should you repair vs. when should you go ahead and replace the VFD? Read more to find out.

VFDs (Variable Frequency Drives) have decreased in price over the years. And with standard VFDs, it’s often economical to replace rather than repair the VFD. A reputable VFD repair company will tell you up front when a drive just isn’t worth repairing.

Many VFDs ARE worthy of repair. Here are some examples where repairing and AC drive might be preferable to replacing it.

When Industrial Drive Repair Makes Sense

It’s a specialized VFD. Some plants have machines worth millions of dollars that have small, very specialized VFDs. Due to communication bus issues, spacing issues (or other application specific reasons) it’s just not feasible to replace them. Innovative-IDM and other reputable repair depots can repair these specialized VFDs and keep the machine running.

It’s a large horsepower unit. The larger the HP, the more likely it is that repairing the VFD is a better option than replacement. For one thing, the installation costs alone on a large HP VFD can be significant, often exceeding the repair costs. We see significant numbers of high horsepower VFD repairs at our repair shop.

Servos. Servo drives are, in general, expensive. They also tend to have application specific software and communication protocols and are often great candidates for repair.

There are large numbers of the specific VFD in the facility. Once you have spares, your maintenance personnel have experience on the units. Now you can use a drive repair company for backup; it might make more sense to stay with what you have and just repair the VFD s rather than replace with new.

We have many customers in this situation. They weigh the cost of the VFD repair, against the TOTAL cost of replacement, which includes things like spares, personnel training, etc.

So, what goes wrong with VFDs?

In general, VFDs are quite reliable. But like any piece of machinery, they have common break points that cause problems, such as:

Loose connections. Don’t laugh, it’s a major cause of VFD downtime. Check simple stuff first. Is a plug on the main circuit board loose? Check your connections before trying a more complex VFD repair.

Cooling Fans. Major cause of problems in industrial drive repair. Some VFD s will let you know about this, but most won’t until you begin tripping on over temperature. The overheating can, and almost certainly will, cause major issues long term. Check your fans often.

Electrolytic Capacitors. These have relatively short lives compared to other components. Overheating shortens it even more.

Power Semiconductors. These are less common, but drastic failures. If this happens, do NOT just replace the IGBT or Diode, find out why if failed. Or, you’ll likely just be replacing it again as soon as you power up.

VFD Software or programming. Was it running before you tried changing a parameter? Then put it all back to where it was and see if that fixes it. Don’t automatically install factory suggested software revisions until you back up what’s running. In general, if it’s running fine now, leave the programming alone.

Circuit boards. These are much less common industrial drive repair failure than one might think, but is often the first thing suspected when an inexperienced technician begins to repair a VFD.

MarcCropwBackground

Phelps

We give firm VFD repair quotes at IIDM and provide free evaluations in our shop. Email me and I’d be happy to discuss your individual situation, or pass you along to one of our technicians for further discussion about whether it’s worth repairing your variable frequency drive, or replacing it with a new one. BTW, did you know that IDM stands for Industrial Drive Maintenance? Isn’t that the kind of repair company you want for your industrial drive repairs?

Marc Phelps is manager of the Innovative-IDM repair facility in Houston. You can contact him at marc.phelps@iidm.com

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Board Repair Email Signatures Get a Makeover

Posted November 11, 2011 by Vanessa Muse

Categories: Electronics Repair, Employees, Innovative-IDM

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Our Board Repair Department is getting new email signature "business cards" today - take a look at Chris Mason's new card.

Then check out our new Repair Price Lookup Tool - hundreds of manufacturers and thousands of part numbers for AC and DC drives, Servo Amps, Power Supplies, Controllers, Touch Screens and more.  Click here to look up repair prices now or go to www.innovativeidm.com/repairs.

 

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