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ErrorLib — Industrial Fault Code Library

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26120

Overvoltage during charging, KPP/KSP (axis)

Kuka · KR C4 extended

What does 26120 mean?

An overvoltage condition occurred during the charging phase of the KPP or KSP module for a specific axis. This could be due to excessive mains voltage or an insufficient number of connected capacitance modules.

Common Causes

  • Mains voltage is too high.
  • Too few capacitors connected (insufficient modules) for the system requirements.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Measure mains voltage and verify it is within specified limits.

  2. 2

    Verify the correct number of capacitor modules are connected.

  3. 3

    Reinitialize the drive bus: Power Off / Power On.

  4. 4

    Check the KPP module.

  5. 5

    Check the KSP module, though this is considered improbable as a primary cause.

Browse all codes in this manual (35)
Verified technical data. Last updated: April 2026

Related Faults

26030Device state: OK26031Internal error, KPP/KSP (axis)26032IxT overload error, KPP/KSP (axis)
Source: Kuka KR C4 extended
Open Manual (Page 238)Search more codes in this manual