ST300 Series | E93, what does this message mean, and what can be done?

If the error message E93 appears on the frequency converter display, it indicates that the threshold for the input voltage at analog input AI2 has been undershot.

Causes:
The input voltage at AI2 is too low.
Nothing is connected to AI2.

Solutions:
Check the wiring of AI2.
Check whether the threshold voltage value in parameter P08.60 is set too high.

If none of these issues apply, please contact technical support.

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