Schneider ATV320 Fault Code INFE

Schneider Electrical Critical System

Model: ATV320 | Code: INFE

Applicable Systems
ATV320 ATV340 ATV630 ATV930

Symptoms

The drive has detected an internal error related to the CPU. This indicates a fault in the RAM, flash memory, or task execution within the drive's processor.

Possible Causes

  • Internal CPU RAM fault
  • Flash memory corruption
  • Internal task scheduling fault
  • Electromagnetic interference affecting CPU operation

Troubleshooting Steps

  1. Step 1: Turn off all sources of power to the drive (main power and control power)
    Drive display goes completely blank
  2. Step 2: Wait at least 10 seconds for all internal capacitors to discharge
    Drive is fully powered down
  3. Step 3: Re-apply power to the drive and check if the error clears
    Drive powers up normally without INFE error
  4. Step 4: If the error returns, remove control wiring from Logic, Analog, Relay, and Communication terminals one at a time to isolate potential noise sources
    Error does not recur when the noise-inducing wiring is removed
  5. Step 5: If the problem persists after isolating wiring, contact Schneider Electric Product Support for drive replacement
    Drive is repaired or replaced under warranty

How to Reset

To reset: 1) Turn off ALL power sources. 2) Wait 10+ seconds. 3) Re-apply power. If INFE recurs, isolate control wiring. If still present, the drive needs replacement.

Frequently Asked Questions

  • Q: What does INFE mean on ATV320?

    Internal CPU error (error 14) - RAM, flash, or task fault. Power cycle the drive (wait 10s). If it returns, isolate control wiring. If still present, contact Schneider support for replacement.

Related Schneider Fault Codes

Source: Schneider Electric FAQ FA313057; Schneider ATV320 Programming Manual

Category: Electrical