26009

Motor blocked ({Drive})

Kuka · KSS 8.3 System Software

What does 26009 mean?

The motor for the specified drive is blocked, meaning it is unable to move or has encountered significant resistance preventing its commanded motion. This is a regular monitoring function that protects the motor from damage due to excessive force. In torque mode, this monitoring can be automatically deactivated by `SET_TORQUE_LIMITS()` with `monitor #off`.

Repair Steps

  1. 1

    Identify the specific drive mentioned in the error message to locate the affected motor/axis.

  2. 2

    Physically inspect the robot's axis corresponding to the drive for any obstructions, mechanical binding, or foreign objects preventing movement.

  3. 3

    Check for excessive external loads applied to the robot that might be overloading the motor.

  4. 4

    Verify the motor's power supply connections and cabling for proper integrity and voltage.

  5. 5

    If operating in torque mode and this monitoring is not intended, ensure `SET_TORQUE_LIMITS(..., monitor #off)` is correctly configured for the drive.

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Verified technical data. Last updated: March 2026
Source: KUKA KSS 8.3 System Software