Kuka · KR C4 extended
The KPP or KSP module for a specific axis is reporting an unknown device status. This indicates an unexpected operational state not recognized by the controller.
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Measure the DC supply voltage to the affected KPP/KSP module at its input terminals, comparing against specified nominal values.
Inspect all communication cables (e.g., EtherCAT/X44) connecting the KPP/KSP module to the main controller for secure connections and signs of damage.
Observe the status LEDs on the affected KPP/KSP module and interpret their state according to the Kuka KR C4 documentation for axis modules.
Verify the axis configuration parameters and module assignment within the Kuka HMI/WorkVisual software for the specific KPP/KSP module and axis.