IPOS Control Word Invalid

What does 77 mean?

No immediate drive response, but a fault is indicated, in IPOS operating mode if an invalid automatic mode was attempted to be set via an external controller, or if parameter P916 is set incorrectly. The IPOS program cannot interpret the received control command.

• The control word for IPOS operations contains invalid bits or commands.
• Attempting to execute an unsupported IPOS function via the control word.
• Incorrect bit pattern in the control word parameter.
• Software sending an invalid command sequence.

Click steps to track your progress.

1. 1

   Check the serial communication connection to the external controller.

2. 2

   Verify the write values being sent by the external controller for validity.

3. 3

   Set the correct value for parameter P916 to define valid control word ranges.