26046

Mains phase failure, KPP/KSP (axis)

Kuka · KR C4 Operating Instructions

What does 26046 mean?

One or more mains phases supplying the KPP/KSP device have failed. This suggests an issue with the incoming AC power supply to the drive, potentially leading to incorrect operation or shutdown.

Repair Steps

  1. 1

    Check the power lead connected to the KPP for disconnections or physical damage.

  2. 2

    Inspect the KPP cabling for loose or damaged connections to the mains supply terminals.

  3. 3

    Reinitialize the drive bus by performing a Power Off / Power On cycle of the entire system.

  4. 4

    Check the KPP module itself for internal faults if mains supply is verified correct.

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Verified technical data. Last updated: March 2026
Source: Kuka KR C4 Operating Instructions