Internal Fault: LCP stack overflow

What does 38.2820 mean?

An internal memory stack overflow has occurred within the Local Control Panel (LCP) processor. This typically indicates a transient software issue or excessive processing demand within the LCP firmware, potentially leading to unresponsive controls or system crashes.

• Excessive or rapid navigation through LCP menus and parameters, overloading the LCP's internal processor.
• Transient software bug within the LCP firmware, potentially triggered by specific user interactions or parameter reads.
• Degradation or faulty internal memory within the LCP unit causing stack allocation errors.
• Electromagnetic interference (EMI) disrupting the LCP's internal operations and memory access.

Click steps to track your progress.

1. 1

   1. Perform a soft reset of the LCP by holding the 'Reset' button (if available) or by power cycling the frequency converter.

2. 2

   2. Attempt to navigate to a simpler menu or the LCP home screen, avoiding rapid input or complex parameter changes.

3. 3

   3. If the LCP remains unresponsive, connect a laptop with manufacturer software and check the drive's event log for recurring LCP errors.

4. 4

   4. Check for available firmware updates specifically for the LCP or the main drive firmware, as these often include bug fixes for stack overflows.

5. 5

   5. If the problem persists and significantly impacts operation, consider replacing the LCP unit if it is a field-replaceable component.