Parameter changes lost

What does 0x7697 mean?

This fault occurs when a voltage failure happens before recently changed parameter settings could be saved. All unsaved parameter changes are lost.

• Power outage or transient voltage dip (brownout) occurred immediately after parameter changes were made but before a 'save' command was executed.
• Operator forgot to issue the 'Save parameters' command (e.g., P99.00 = 2) after making modifications.
• Control power supply (e.g., 24VDC at X1:1, X1:2) to the inverter dropped below the minimum threshold before changes were permanently stored.
• Internal memory fault in the inverter preventing the non-volatile storage of parameters.
• Frequent power cycling or unexpected shutdowns during commissioning without allowing sufficient time for parameter writes.

Click steps to track your progress.

1. 1

   Always execute the 'Save parameters' command (e.g., P99.00 = 2) explicitly after making any parameter changes.

2. 2

   Verify the stability of the control power supply (e.g., 24VDC) to the inverter, ensuring it does not drop below specified voltage during operation.

3. 3

   Implement an uninterruptible power supply (UPS) for the control circuit if the environment experiences frequent power fluctuations.

4. 4

   After making changes, allow a few seconds before initiating a power cycle to ensure sufficient time for internal write operations.

5. 5

   If parameter changes are consistently lost even after explicit saving and stable power, consider a drive replacement due to internal memory failure.