Absolute encoder monitoring, opt. encoder (encoder alarm)

What does E2078 mean?

The IndraDrive MPx02's monitoring system has detected an alarm condition from the optional absolute encoder (e.g., a second motor encoder or an external absolute encoder). This signifies an issue with the absolute position feedback from this auxiliary encoder, which could affect dual-encoder or master-slave configurations, or safety functions.

• Loss of absolute position data from the optional encoder (e.g., due to power cycle or battery depletion).
• Internal fault within the optional absolute encoder itself.
• Communication error between the drive and the optional absolute encoder.
• Incorrect optional encoder parameterization in the drive, causing data mismatch or misinterpretation.
• Damaged encoder battery or supercapacitor (if applicable) for absolute position retention.

Click steps to track your progress.

1. 1

   Check the optional absolute encoder's status indicators (LEDs) for any error codes or abnormal behavior as per the encoder manufacturer's manual.

2. 2

   Verify the communication wiring and protocol settings between the IndraDrive MPx02 and the optional absolute encoder.

3. 3

   If the optional encoder uses a battery for absolute position retention, check its voltage and replace it if necessary.

4. 4

   Ensure that the absolute encoder parameters for the optional encoder in the drive are correctly configured for the specific encoder type and application.

5. 5

   Attempt a re-initialization of the absolute position or a reference run if the absolute position data has been lost, and if the alarm persists, consider replacing the optional absolute encoder.