When the power of Altivar 32 drive is recycled, then the parameter value has not been saved to the Altivar 32 drive, which is change by communication.

When a value is modified by the communication (Modbus, CANopen, or other communication board), the parameter is only write
in drive RAM.So when the drive is Power OFF/ON, the value is lost and the parameters revert to the last saved value in EEPROM.

To write a parameter in Drive EEPROM, it is necessary to write CMI (logic address 8504) bit 1.
Refer to attached file for detail.