PR1 (Checksum error in parameter set 1)

What does 0072 mean?

A checksum error has been detected in parameter set 1. This fault can arise from issues during parameter set loading, interruption during transfer via keypad, or incompatibility between stored parameters and the loaded software version.

• Interruption of power supply or communication link (e.g., keypad, serial port) during parameter set 1 upload or download.
• Firmware incompatibility between the drive's current firmware version and the parameter set 1 being loaded.
• Corruption of the internal non-volatile memory storing parameter set 1 due to electrical noise or aging.
• User error during manual parameter entry (e.g., incorrect sequence, out-of-range value) leading to a corrupt set.
• Faulty keypad or communication interface module causing incorrect data transfer to the drive.

Click steps to track your progress.

1. 1

   1. Ensure a stable power supply to the drive and communication device, then re-download parameter set 1 from a verified backup source.

2. 2

   2. Verify the drive's firmware version is compatible with the parameter set 1 file being used; update firmware if necessary.

3. 3

   3. Perform a factory reset (e.g., P0-99 = 1) to clear corrupted memory, then reload the parameters from a known good source.

4. 4

   4. Check the integrity of the parameter file using the drive's programming software or a checksum utility if available.

5. 5

   5. If using a keypad, re-enter critical parameters manually and save them (e.g., P0-97 = 1) to confirm successful write operations.