Encoder fault

What does 43 mean?

A problem has been detected in the encoder signals. Subcodes in T.14 specify the issue: S1 (Encoder 1 channel A missing), S2 (Encoder 1 channel B missing), S3 (Both encoder channels missing), S4 (Encoder reversed), S5 (Encoder board missing), S6 (Serial communication fault), S7 (Channel A/B mismatch), S8 (Resolver/Motor pole pair mismatch), or S9 (Missed start angle).