AddData DlErr Error during FLASH memory access

What does 252 mean?

An error occurred when downloading data into the FLASH memory. This can be caused by a time-out, transmission error, or a mains failure during the data transfer process, resulting in incomplete or corrupt data.

• Intermittent power supply interruption (brownout, voltage sag) during a FLASH memory write or erase cycle (e.g., parameter save, firmware update).
• Faulty or degraded FLASH memory chip on the drive's control board, causing write failures.
• Data transmission error during download (e.g., corrupted communication cable, electromagnetic interference on communication lines).
• Firmware bug or corrupted firmware image attempting an invalid FLASH operation.
• Exceeded FLASH memory write/erase cycle limits due to excessive parameter changes or updates (rare in normal operation).

Click steps to track your progress.

1. 1

   1. Power cycle the drive and attempt the data download or parameter save operation again.

2. 2

   2. Measure the incoming line voltage (L1, L2, L3) and control power supply voltage (e.g., 24VDC) during the write process to detect transient sags.

3. 3

   3. Use a different communication cable (e.g., USB, Ethernet) to connect to the drive for parameter download, checking for damage or poor shielding.

4. 4

   4. Reduce the amount of data being written to FLASH at one time, if possible, or try a partial parameter download.

5. 5

   5. If performing a firmware update, re-download the firmware file from a trusted source to ensure it's not corrupted, then retry the update process.