Internal fault (Specific range)

What does 512–519 mean?

A general internal fault has occurred within a specific range of internal error codes. This indicates an unspecified internal hardware or software malfunction that requires specialized attention.

• Undetermined software exception or run-time error within the drive's operating system or application code.
• Transient hardware malfunction on the control board (e.g., a watchdog timer reset, bus error).
• Corruption of critical RAM or flash memory areas due to power instability or electromagnetic interference.
• Failed internal communication between different processors or modules within the drive.
• Component failure (e.g., passive components, ASICs) on the control board leading to unpredictable behavior.

Click steps to track your progress.

1. 1

   1. Record the exact internal sub-code displayed with the main fault code, as this provides crucial diagnostic information for technical support.

2. 2

   2. Perform a full power cycle of the drive, waiting at least 60 seconds after disconnecting power before reapplying it.

3. 3

   3. Attempt to clear the fault using the drive's LCP reset button or parameter P16-90 (Fault Log).

4. 4

   4. Verify the stability of the input power supply to the drive by measuring L1-L2, L2-L3, L3-L1 voltages at the terminals.

5. 5

   5. Ensure all option cards are securely seated and their firmware is compatible; if the issue persists, temporarily remove non-essential option cards and retest.