Defective Parameter Set 2

What does Pr2 mean?

Parameter set 2 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 2 (e.g., keypad removed, communication cable disconnected).
• Voltage fluctuation or power dip occurring precisely during the saving process of parameter set 2 to non-volatile memory.
• Internal memory error (EEPROM or flash) affecting the specific block allocated for parameter set 2.
• Firmware bug causing improper handling of parameter set 2 data integrity during write operations.

Click steps to track your progress.

1. 1

   Verify stable power supply voltage at the controller's main input terminals (L1, L2, L3 or L+, L-).

2. 2

   Attempt to re-upload parameter set 2 from a known good backup using the programming software or keypad.

3. 3

   Confirm communication cable integrity between the controller and the programming device (PC/keypad) using a continuity tester.

4. 4

   Reset the controller to factory default settings (e.g., Parameter P1-10 = 0) and then reconfigure all necessary parameters.

5. 5

   If the fault persists, consider a firmware update or controller replacement.