YASKAWA MP210 Series User Manual page 211

 Power Restart and RAM Data Clear
If the INIT switch of the mode switch on the MP2100 is ON and the power is turned ON, RAM data will be cleared.
Also, flash memory data will be read and RAM data will be overwritten when the INIT switch is OFF and the power is
turned ON. In either case, the RAM data will be cleared by turning the power ON. Therefore, always save data to the
MP2100 flash memory before turning OFF the power when writing or editing programs.
For information on how to save data to flash memory, refer to 4.3.2 (6) Saving to Flash Memory.
 Turning OFF Power after Executing Self-configuration
Do not turn OFF the power supply to the MP2100 after executing self-configuration until the definitions data has been
saved to flash memory in the MP2100. If the power is turned OFF somehow before the data is saved to flash memory,
execute self-configuration again.
5.4 Self-configuration
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