Kuka · KR C4 Operating Instructions
A communication error has occurred on the controller bus, specifically identified as an EtherCat issue, involving the KPP or KSP device for a specific axis. This indicates a disruption in data exchange between the KPP/KSP and the main controller or other bus participants. Loss of communication can prevent axis control and coordinated motion.
Click steps to track your progress.
Perform a Power Off / Power On cycle of the entire system to reinitialize the drive bus.
Inspect all EtherCat cabling for damage, proper connection, and secure latching at all nodes.
Verify the configuration and operational status of the EtherCat stack within the controller software.
Check the status indicators and diagnostics of the CCU (Controller Control Unit).
Check the status indicators or diagnostics of the KPP device.
Check the status indicators or diagnostics of the KSP device.