Cause: Encoder module error comes when an error on the encoder module has been detected. The encoder itself might be damaged or malfunctioning or problems with the encoder's wiring, such as loose connections, breaks, or short circuits.

"inFJ" Internal Error 19 fault in Schneider ATV950 drive indicate Encoder module error. This means a problem with the device responsible for measuring the position or speed of a rotating shaft. This can disrupt the system's ability to control or monitor movement accurately.

1. Inspect the encoder for physical damage, dirt, or wear.
2. Examine the encoder's wiring for any issues.
3. Ensure the encoder is receiving adequate power.
4. Verify the encoder settings in the system's control logic.