26104

IxT overload error, KPP/KSP (axis)

Kuka · KR C4 extended

What does 26104 mean?

This fault indicates that an axis is overloaded, leading to the mean continuous current being too high. It can occur during start-up due to excessive program load or during operation due to system modifications, temperature influences, or excessive power demand. The risk is potential damage to the KPP/KSP power units or the axis motor due to sustained high current.

Common Causes

  • Excessive load in the program during start-up.
  • System modifications leading to increased load during operation.
  • Temperature influences affecting motor or drive performance.
  • Excessive power demand from the axis.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Reinitialize the drive bus: Power Off / Power On.

  2. 2

    Check the machine for mechanical issues causing high load.

  3. 3

    Check trace recording of axis current to identify load patterns.

  4. 4

    Adapt program velocity to reduce instantaneous load.

  5. 5

    Check CBS pressure (if applicable to the machine configuration).

  6. 6

    Check gear unit for excessive friction or damage.

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Verified technical data. Last updated: March 2026

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