: The controller cannot communicate with the card's file structure.
In Kaeser compressors equipped with controllers like the Sigma Control 2
Reinsert the card, power on the system, and check if the error persists. 2. Verify Card Format and Capacity
Safety First: Lock out/Tag out the main disconnect. Do not hot-swap cards while the controller is energized unless you are comfortable risking a mainboard short.
While rare, the issue could be with the controller itself. The official Kaeser manuals list specific system messages that point to internal file system errors. Among these, is the one most related to a write error.
For continuous logging environments, use an industrial/high-endurance SD card, schedule periodic backups and card replacements, and keep device firmware current. If a write error occurs, stop writes, inspect and test the card on a PC, repair or replace the card, and escalate to support if the device slot appears to be the issue.
Go to the tab and click Check under the Error Checking section.
To prevent "SD Card Write Errors" in the future:
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