Cause : Kernel overload comes when control card operating system error. The kernel is the core of the ABB ACS880 drive's operating system. It's responsible for managing all critical tasks like:

• Motor control calculations
• Communication with external devices
• Monitoring internal parameters
• Responding to user commands

The fault code 6E0B in your ABB ACS880 drive indicates a critical issue: Kernel overload. This means the drive's processor is overloaded and struggling to keep up with the demands placed upon it.

• Reboot the control unit (using parameter 196.08 Control board boot) or by cycling power.