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ErrorLib — Industrial Fault Code Library

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26043

Unknown status flag received, KPP/KSP (axis)

KUKA KRC4 · Robot Controller

What does 26043 mean?

Software error within the EtherCat master. The KUKA KRC4 KPP/KSP device received an unrecognized status flag from the EtherCat master. This indicates a communication issue at the protocol level.

Common Causes

  • Software error within the EtherCat master controlling the KUKA KRC4 KPP/KSP.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Reinitialize the drive bus by performing a Power Off / Power On cycle for the KUKA KRC4 controller.

  2. 2

    Verify the integrity and proper connection of the EtherCat communication cabling to the KPP/KSP modules.

  3. 3

    Check the KPP/KSP device LEDs for any further diagnostic indications of a specific fault.

  4. 4

    If the fault persists, consider a software update for the EtherCat master within the KUKA KRC4 system.

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

Related Faults

-1General error-11Specified path not found-13Specified path is empty
Source: KUKA KRC4 Robot Controller
Open Manual (Page 199)Search more codes in this manual