ST600s | Err.56, what does this message mean, what can be done?

If the error message Err.56 appears on the display of the frequency inverter, it is an encoder UVW loss fault.

Causes:

• No change in the electrical level has occurred in the UVW signal.

Solutions:

• Check the wiring of the UVW.
• Encoder is damaged.

If none of these error sources apply, please contact technical support.

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