top of page

F99 PLC cold start, check all settings

Possible cause:

This message occurs when a PLC fault has cancelled any setting (times, counts, pressures, etc.) or when the E-prom of the PLC has been removed or exchanged.

Rectification:

Press and hold the [Reset] button for 30 seconds to clear the error message.
Ensure that the storage cap of the PLC is correctly fitted.

bottom of page