Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 362

 Frequency setting storage
• When Pr.59 = "1, 11", the remotely-set frequency (frequency set by RH/RM operation) is stored to the memory (EEPROM).
When power is switched OFF once, then ON, operation is resumed with the stored set frequency.
• When Pr.59= "2, 3, 12, 13", the set frequency is not stored, so when switching the power ON again after being switched
OFF, the remotely-set frequency becomes 0 Hz.
• The remotely-set frequency is stored at the point when the start signal (STF or STR) turns OFF. Remotely-set frequency
is stored every minute after turning OFF (ON) the RH and RM signals together. Every minute, the frequency is overwritten
in the EEPROM if the latest frequency is different from the previous one when comparing the two. This cannot be written
with RL signals.
NOTE
• When switching the start signal from ON to OFF, or changing frequency by the RH or RM signal frequently, set the frequency
setting value storage function (write to EEPROM) invalid (Pr.59 = "2, 3, 12, 13"). If the frequency setting value storage function
is valid (Pr.59 = "1, 11"), the frequency is written to EEPROM frequently, and this will shorten the life of the EEPROM.
 Clearing the settings
• When Pr.59 = "1, 2, 11, 12" and the clear signal (RL) is turned ON, the remotely-set frequency is cleared. When Pr.59 =
"3, 13" and the STF (STR) signal is turned OFF, the remotely-set frequency is cleared.
5.8 (F) Setting of acceleration/deceleration time and acceleration/deceleration pattern
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5. PARAMETERS