Troubleshooting and Repairs For Your Teknic SST-1500-561 Servo Drive

Teknic repairsSmall but mighty, servo drives are critical players on the industrial playing field. These drives are common in CNC machining, factory automation, and robotics . The Teknic SST-1500-561 servo drive is a frequent flyer – meaning there are a lot of them out there working hard (see photo). If your drive faults out you will know it! Production pretty much comes to a stop!

These Teknic servo drives are good, solid equipment. But, like anything getting hard use in a harsh environment, these drives eventually break down. What should you look for? What should you expect? Here’s some answers:

What Happened?

Here’s are some common failures for these drives. Do any of these sound familiar?

  • DC voltage overload, have a blinking green fault indicator
  • Count 5 ERROR
  • LED Blinks 5 times
  • Currently running with the z axis drive but having intermittent problems, giving an xb axis drive fault
  • Blink Count 3 ERROR. “Over Current/Voltage” message displayed on m/c control
  • 5 Blink count, as soon as the motor is signaled to move
  • 3 blink count, will not power off during a reboot
  • Z-axis controller ERROR message – servo stop z-axis

That all sounds like major frustration on the plant floor, but there’s a fix for that! These Teknic drives are usually repairable for a reasonable cost. The repair cost is usually less than it would cost to buy a new one or refurbished one.

Typically you will find aged and blown components inside, along with trace and solder damage. Occasionally this type of damage may be visible to the naked eye. More often it requires testing to find which components are blown and which are about to go next which is an important part of a good repair!

Common repairs for these drives:

  • Mosfets and capacitors replaced
  • Regulator and the capacitors replaced
  • Regulator, capacitors, driver ic replaced, repaired cold solder joints
  • Recapped, reflowed cracked solder joints, replaced driver ICs and Mosfets
  • Replaced shorted IGBTs, shorted Mosfet and 5 others that work in sequence on an output
  • Recapped and rebuilt output circuit replacing all optos, FETs, and driver ICs
  • Replaced Mosfets capacitors and driver ICs

These servo drive problem descriptions give you the picture – recurring component failure. Typically, the culprits are the capacitors, mosfets, regulators, ICs, and IGBTs. A thorough testing, cleaning and replacement of blown and aging components can bring these Teknic SST-1500-561 servo drives back to life quickly.

Have Questions?

Do you have questions or concerns about your servo drive, or you think it may need service? If it’s still under warranty, contact your OEM. If it is out of warranty, contact an independent industrial electronic repair center. They should offer free evaluations for your servo amp and, if needed, a free quote for repairs. They should also provide repair reports and a good warranty that covers both parts and labor.

Repair of quality industrial equipment like this Teknic servo drive can be a great way to save money and time, as well as be environmentally responsible. If your Teknic SST-1500-561 servo drive needs repairs, we can help! 

About the Author: ACS Industrial Services is an independent  industrial electronic repair center providing repair services for drives of all types and most all manufacturers including servo drive repairs, AC/DC drives, VFD drives, servo motors, encoders, printed circuit board repairs, monitors and touchscreens, PLCs, test equipment, light curtains, and much more.  Our customer service team is available to answer your questions and help solve your industrial electronic repair concerns. Legacy equipment can be repaired! RUSH Service is available. You can reach them by calling 800-605-6419.

Repairs for Your Charmilles Operator Keyboard

repairs for Charmilles Wire EDM keyboardsIs your Charmilles operator keyboard having problems communicating? Has your F2 key gone bad and refusing to do anything? Keys broken off altogether? If so, you could have a nasty case of what we call “HUKS”! That’s short for “Hard Use Keyboard Syndrome” – a common “infection” in industrial settings everywhere.

The pictured  Charmilles keyboard p/n ASK 142A 282 A2 repair   is the perfect charmilles keyboard electronics example of HUKS! It came off of a wire EDM machine.  Many of the keys had broken off and other keys were no longer working causing a major headache for the tooling plant!

Good News!

These excellent but pricey keyboards can get wonky after hard use in a machine shop or manufacturing plant. The good news is that they are usually repairable! And, for FAR less than the cost of buying a new one – in this case THOUSANDS of dollars less.

Why Does HUKS Happen?

The cause of “HUKS” is typically a combination of oil, dirt, humidity, heavy use and, sometimes, spills – the natural and unavoidable industrial environment. If your operator control keyboards need a cure for “HUKS”, stay calm! There is help!

Repair of quality industrial equipment like this Charmilles keyboard can be a great way to save money AND time.  And if that isn’t great enough, getting electronic repairs rather than trashing the old equipment and replacing it with new is another good way to meet your environmental goals. Win Win!

About the Author: ACS Industrial Services is an independent industrial electronic repair center providing professional repair services for industrial electronics of all types and most all manufacturers including operator keyboard repairs, servo drive repairs, AC/DC drives, VFD drives, servo motors, encoders, printed circuit board repairs, monitors and touchscreens, PLCs, test equipment, light curtains, and much more.  Our customer service team is available to answer your questions and help solve your industrial electronic repair concerns. Legacy equipment can be repaired! RUSH Service is available. You can reach them by calling 800-605-6419.

Repair your Crestron TPS Touch Screen with ACS

We repair industrial and commercial touch screens regularly here at ACS. Some have had a tough life, pounded by pens or sometimes dented or even punctured by something sharper. Many displays have lost vibrancy or developed annoying lines. Others have worn-out touch areas, or the sound functions are failing to operate. Some screens may half-work after they have developed a crack or other defect in the screen, but we all know it’s on borrowed time when that happens. Eventually the screen won’t respond at all.

When you’ve reach the aggravation station, consider a repair.

Service calls may be included in a industrial maintenance plan you already have, but if not, sending the damaged touch screen to ACS will definitely save money on the initial assessment – no bench fees! To send a part for free evaluation, use our easy ACS RMA form.

We don’t recommend attempting your own repair on your industrial touch screen, regardless of what the internet is suggesting. If you do it yourself and goof, that’s that. If you send it to us, the work is covered by our warranty. Six months is typical for touch units, but some warranties may be as long as our usual 2 years.

It generally doesn’t take long to run down the worst problems. If you need answers in a hurry, ACS will have a finding for you fast, usually within one day.

We recently had a Crestron TPS display on our repair benches that had both a bad LCD and a bad processor. Unfortunately, even though the LCD could be sourced, the processor could not, so it was ultimately not repairable. But for most Crestron touchscreens with a power problem or other faulty components, the likelihood of success is excellent!

If your touch screen has a fatal issue, we’ll look for a suitable replacement for you. We want to help you get back online, back to work, and problem-solve for simplicity.

Occasionally, we hear our customers say they would just rather go back to the good old mechanical buttons. We hear you. But we also remember that mechanical buttons broke too! A touch interface gives you a ton of flexibility and with gentle handling it will last a lot longer than most mechanical keypads.

To send your touch screen for a free evaluation and repair quote, just start with our ACS Repair Form, or send us your questions about the touch panel repair process.

So, is it “touch screen” or “touchscreen”? Miriam Webster and Oxford Dictionaries disagree