Drive Programming Nesting Count Error

What does E44 mean?

This fault occurs when the Drive Programming logic contains subroutines, if-statements, or for-next loops that are nested more than eight layers deep. This exceeds the inverter's processing capability for program complexity, causing a trip to prevent runtime errors and ensure system stability.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Break down large, complex programming blocks into smaller, more manageable functions or use flags to reduce nesting.

2. 4

   Optimize the program flow to avoid deep recursion or excessive conditional branching that consumes too many resources.

3. 5

   Consult the Drive Programming manual for best practices on program structure and limits.