Siemens · SINAMICS G120
An internal communication error has occurred within the Control Unit. This indicates a disruption in data exchange between internal components, which can lead to unpredictable behavior or system shutdown, compromising operational stability and safety.
Click steps to track your progress.
Perform a full power cycle of the drive (Control Unit and Power Module) to attempt a re-initialization of internal communications.
Carefully reseat the Control Unit onto the Power Module, ensuring all connectors are firm and correctly aligned.
Check the ambient temperature around the drive and verify that the Control Unit's cooling fan is operating correctly.
Inspect the Control Unit for any visible signs of damage, such as swollen capacitors or burnt components.
If multiple similar faults occur, consider updating the Control Unit's firmware to the latest stable version.