ST300 Series | E22, what does this message mean, and what can be done?

If the error message E22 appears on the frequency converter display, it indicates a PID feedback offline error.

Causes:
PID feedback is offline.
The PID feedback source disappears.
The threshold value for offline detection is set too high.

Solutions:
Check the PID feedback signal cables and the screw terminals.
Check the setting of the PID feedback source P09.02.
Check the values for PID feedback offline detection P09.11 and P09.12.

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

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