Defective Parameter Set 3

What does Pr3 mean?

Parameter set 3 within the controller has become defective, likely due to an interrupted or faulty transfer from the keypad. This indicates a corruption in a specific configuration set, which can prevent proper drive operation when that set is active. Operating with corrupted parameters can lead to unpredictable behavior.

• Interruption during parameter transfer from a keypad or PC to parameter set 3 (e.g., communication timeout, cable removal).
• Transient power interruption or brownout during the write cycle for parameter set 3 storage in non-volatile memory.
• Degradation or sector failure within the controller's non-volatile memory specifically impacting parameter set 3.
• Software logic error in the controller's operating system failing to validate integrity of parameter set 3 after a write.

Click steps to track your progress.

1. 1

   Measure input voltage at controller terminals L1, L2, L3 for stability during operation and parameter writes.

2. 2

   Load a previously saved, verified parameter set 3 configuration from a backup file via the programming interface.

3. 3

   Inspect the programming keypad connection or communication cable for secure seating and absence of damage.

4. 4

   Execute a full controller reset to factory defaults (e.g., Parameter P0-01 = 1) and then manually re-enter all required parameters for set 3.

5. 5

   Monitor the controller's internal diagnostics log for other related memory or communication errors (if available).