Indramat Error F226

Indramat error F226

If you find your Indramat servo suddenly out of commission, check the H1 display on your controller to see what is wrong. An Indramat F226 error code indicates an Undervoltage Error.

Indramat parts and components are known for durability and longevity. While Indramat hasn’t existed as a company for decades, there are many facilities still using Indramat motion control systems for packaging, printing, manufacturing, and the like. It’s common for industrial machines to operate with Indramat components that have been running for two or three decades.

Durable is not the same thing as permanent, though. Every machine needs maintenance and repair over time. Here’s some information to help you work through an F226 Indramat error code.

Indramat error F226 aka the “Wile E. Coyote Error”

An F226 error message indicates that the DC bus voltage fell below the minimum threshold. When this happens, your drive shuts down. Your Indramat troubleshooting manual gives a few possible explanations for why the voltage might fall below the minimum threshold.

  • Power was lost without deactivating the drive via controller enabled signal (RF).
  • The drive was activated via controller enabled signal (RF) before turning on the power source.
  • The power supply is not working properly.

These are all valid and right, but lets talk about what actually happened.

I call Indramat error F226 the “Wile E. Coyote Error” (thank you Chuck Jones for making my childhood more amazing). You remember Wile E. Coyote running off the cliff in all the Roadrunner cartoons? The cliff would end, but Mr. Coyote would continue running in the air without going anywhere.

That is F226 in a nutshell.

The drive runs fine, and then the power goes away (for whatever reason) while the drive is still being told to run. When you run out of ground (power) and yet you are still being told to run, you are in the same spot as Wile E. Coyote pedaling away in the air, except instead of falling into the distance and making a small cloud of dust when you hit the ground, you get an F226 error code.

Troubleshooting undervoltage errors

Troubleshooting the drive and the controller might be easier than solving the problem with the power supply. However, you could also be looking at a field wiring issue.

One of the easiest to solve causes of an F226 error is if the Estop was triggered and the power left before the enable was shut down. This is typically a wiring issue. The first thing to do is see if the unit will reset; if it won’t, you may have a blown bridge or power section.

An F226 error code is a relatively easy problem to solve. There could be any number of alphanumeric combinations on display, though. If you have your Indramat manual handy, you can easily look up the error code to figure out exactly what the problem is.

However, since Indramat parts run forever (in a hyperbolic sense), there’s a good chance that you’ve misplaced your manual at some point over the years. We would be happy to provide you with a new Indramat manual.

Some errors can be fixed with little effort, or at the very least some phone support. Sometimes the problem needs more assistance, and every second of downtime can end up costing you money.

Don’t hesitate to give us a call for your Indramat repair needs — 479-422-0390.