dEUE

Soft Starter Mismatch (Keypad)

Schneider Electric · Altistart 22 Soft Starter

What does dEUE mean?

The type or brand of the connected remote keypad does not match the type or brand of the Altistart 22 soft starter. This incompatibility prevents proper communication and control, as the devices are not designed to work together.

Common Causes

  • An incompatible remote keypad from a different Altistart model or another manufacturer is connected to the soft starter.
  • Incorrect keypad replacement part used during maintenance or repair, leading to incompatibility.
  • Keypad firmware version mismatch with the soft starter firmware, even if the model is generally compatible.
  • Damage to the keypad's internal identification chip or the soft starter's detection circuit prevents proper recognition.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    1. Verify the model number and part number of the installed remote keypad against the soft starter's documentation to confirm compatibility.

  2. 2

    2. Ensure the correct replacement keypad part number is ordered and installed according to the soft starter's specifications.

  3. 3

    3. Consult the soft starter manual for compatible keypad models and any specific firmware version requirements.

  4. 4

    4. Test with a known-compatible remote keypad unit to confirm if the original keypad is indeed mismatched or faulty.

  5. 5

    5. If available, check the soft starter's internal settings for any keypad type configuration parameters that might be misconfigured.

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Verified technical data. Last updated: March 2026

Related Faults

Source: Schneider Electric Altistart 22 Soft Starter