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ErrorLib — Industrial Fault Code Library

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26033

Ground fault, KPP/KSP (axis)

Kuka · KR C4 Controller

What does 26033 mean?

This fault indicates a power unit overcurrent due to a ground fault in the motor or motor cable connected to a KPP/KSP drive. A ground fault poses a significant safety risk and can cause severe damage to electrical components.

Common Causes

  • Ground fault in the motor cable
  • Internal ground fault within the motor

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the motor cable for insulation breakdown or damage that could cause a ground fault.

  2. 2

    Check the motor for internal ground faults by measuring insulation resistance.

  3. 3

    Reinitialize the drive bus by cycling Power Off / Power On.

  4. 4

    Check the KSP module for any status indicators.

  5. 5

    Check the KPP module for any status indicators.

Browse all codes in this manual (21)
Verified technical data. Last updated: April 2026

Related Faults

26031Internal error, KPP/KSP (axis)26032IxT overload error, KPP/KSP (axis)26034Overcurrent, KPP/KSP (axis)
Source: Kuka KR C4 Controller
Open Manual (Page 156)Search more codes in this manual