Troubleshooting Indramat Fault F277

Indramat PPC Control

Indramat fault F277, or  “Current Measurement Trim Wrong”,  indicates a problem with your drive controller. Unlike other pesky Indramat errors that have several possible causes, there is one cause — and one remedial action — for Indramat F277 faults. However, this doesn’t mean that it’s easy to clear this error. You can’t troubleshoot this error in-house. You must contact an Indramat professional to replace your defective controller.

What is an F277 error?

Your Indramat system generates an F277 “current measurement trim wrong” diagnostic message if the compensation values for the current reading either exceed the tolerated variation by 10% or fall under the tolerated variation by 10%.

In simple terms, an F277 fault indicates that there’s something wrong with your drive controller. It’s not an issue with the settings or configuration; it’s a problem with the hardware itself.

Troubleshooting Indramat fault F277

Don’t worry about what caused your F277 fault. The solution is the same no matter what caused the fault. Your Indramat manual lists one remedial action for this error code: “Replace hardware”. You can either buy a replacement drive controller, or you can send your unit in for a factory repair.

Use caution when purchasing a new Indramat controller, though:

  • Putting anything other than an identical unit in your system will result in extra downtime and extra costs.
  • Indramat products are legacy products, and it’s difficult to know the quality and history of a controller purchased from third parties.
  • Indramat has never supplied third parties with original Indramat parts. Units refurbished outside of the factory were repaired using salvaged, reused, or generic equivalent parts. In fact, poor quality third party Indramat repairs are one of the more common causes for F277 errors.

An Indramat factory repair restores your drive to like new condition. Repairs are performed by trained technicians at Bosch Rexroth, the company that now owns the Indramat name. Factory repaired units are tested to original manufacturer specifications, and the unit comes back to you with a new factory warranty.

Call 479-422-0390 to repair of replace your defective drive controller. We specialize in Indramat motion control systems, we have the largest supply of Indramat emergency replacement units in the U.S., and we can arrange a factory repair with 24 hour turnaround. Call for immediate support or contact us online.