Drive HW initialization

What does A591 mean?

The drive's hardware is undergoing its initialization process. While typically a brief startup event, persistent initialization can signal a deeper issue with the drive's hardware or firmware. The auxiliary code might provide more context on the specific stage of initialization.

• Failure of a specific hardware component to respond during its self-test phase (e.g., an internal measurement ASIC, gate driver).
• Issues with the internal clock synchronization or timing circuits on the control board.
• Firmware corruption affecting a fundamental part of the hardware initialization routine.
• An attempt to boot with an incompatible power unit or control board combination.
• Persistent internal memory error preventing the drive from completing its boot sequence.

Click steps to track your progress.

1. 1

   Execute a drive power cycle.

2. 2

   Perform a full parameter reset to factory defaults (P96-01=1) to clear any potentially corrupt configuration that might interfere with initialization.

3. 3

   Update the drive's main firmware to the latest compatible version.

4. 4

   If option modules are present, power down the drive and remove them one by one to see if the fault clears, indicating an issue with a specific module.

5. 5

   If the issue persists after these steps, the drive's main control board likely requires replacement.