ST600s | Err.55, what does this message mean, what can be done?

If the error message Err.55 appears on the display of the frequency inverter, it is a repetition of the expansion card type.

Causes:

• The two expansion cards used are of the same type.

Solutions:

• Two cards of the same type may not be used.
• Check the type of expansion card and remove a card after power off.

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

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