LCP stack overflow

What does 2820 mean?

The Local Control Panel (LCP) internal software stack has overflowed. This indicates a potential software or processing issue within the LCP, possibly due to complex operations or a firmware bug.

• Executing overly complex parameter monitoring or diagnostic routines simultaneously through the LCP.
• Firmware bug within the LCP's operating system or application logic.
• Excessive navigation or rapid data entry on the LCP, exhausting its internal memory stack.
• Corrupted LCP application code or configuration data stored in its non-volatile memory.
• Insufficient memory allocation for the LCP's stack in the drive's firmware.

Click steps to track your progress.

1. 1

   Power cycle the drive by disconnecting mains voltage (L1, L2, L3) for at least 60 seconds.

2. 2

   Attempt to update the drive's main firmware, which often includes LCP firmware updates.

3. 3

   Perform an LCP factory reset, if available, or reset all drive parameters via P14-22 (Reset options).

4. 4

   Avoid rapidly navigating menus or entering data on the LCP when the fault occurs.

5. 5

   Check for any installed LCP option modules that might conflict or use excessive resources.