Device Changed (Same Type)

What does 37 mean?

A power unit or option board (in slot B, C, D, or E) has been replaced with a new one of the *same type and size* as previously used. The device is ready for use, and its original parameter settings are available. This is an informational fault indicating a successful, compatible hardware replacement.

• Physical replacement of a power unit or an option board (e.g., in slot B, C, D, or E) with an identical spare part.
• A parameter upload or download was performed that included device-specific configuration that triggered a hardware comparison.
• Temporary disconnection and reconnection of an option board (e.g., for cleaning or inspection), triggering the detection.
• Internal checksum error occurred during self-test, leading the drive to believe a component was changed.
• System log entry confirming a successful hardware swap and parameter restoration.

Click steps to track your progress.

1. 1

   Confirm that the replacement power unit or option board is indeed of the exact same type, size, and firmware compatibility as the original.

2. 2

   Acknowledge the fault/warning via the HMI or control system, which typically clears this informational message.

3. 3

   Review the drive's parameter settings (e.g., P0-02 to P0-05) to ensure all application-specific parameters are correctly restored and active.

4. 4

   Perform a functional test of the replaced component or the drive with a motor connected to verify proper operation.

5. 5

   No active repair steps are typically needed for this informational fault; it confirms successful component replacement.