Max signal frequency of encoder 2 exceeded

What does F246 mean?

The signal frequency of the optional encoder (encoder 2) has exceeded the maximum allowed frequency of the encoder interface. If P-0-0185 (Function of encoder 2) is set to 4 (spindle encoder), only the position status of the optional encoder is cleared to 0. Otherwise, F246 is generated, and the position status is cleared to 0.

• Encoder speed is too high for the selected encoder type or the interface limits of the Indramat DIAX04 SSE-03VRS drive controller.
• Incorrect encoder resolution configured in parameters, leading to an artificially high signal frequency.
• Incorrect parameter P-0-0185 setting not matching the application (e.g., not set for spindle encoder when it should be).

Click steps to track your progress.

1. 1

   Verify the maximum permissible signal frequency for the Indramat DIAX04 SSE-03VRS encoder interface and the specific encoder 2 model used.

2. 2

   Check the mechanical speed of the motor or spindle connected to encoder 2. Ensure it does not exceed the maximum operational speed specified for the encoder.

3. 3

   Review the encoder resolution and scaling parameters in the Indramat DIAX04 SSE-03VRS drive controller. Correct any settings that may cause an erroneously high calculated signal frequency.

4. 4

   Examine parameter P-0-0185 (Function of encoder 2). If encoder 2 is used as a spindle encoder, ensure this parameter is set to 4. Adjust the parameter if it's incorrect for the application.

5. 5

   Consider using an encoder with a lower resolution if the mechanical speed cannot be reduced, or if the current encoder's resolution and the drive's interface limits are incompatible.