Mitsubishi Electric FR-A8NC Instruction Manual page 85

• To continuously change the running frequency from the programmable controller
When the frequency (speed) setting completion (example: X100D) switches on, make sure that the reply code in the remote
register is 0000H and change the set data (example: W101) continuously.
• Program example for writing data to EEPROM
Modify the program on page 83
Frequency setting command Y100D  Y100E
Frequency setting completion X100D  X100E
<Timing chart when writing to RAM>
Y100D
W101
Inverter
running
frequency

For EEPROM, write is made only once when Y100E is switched on.

If the set data is changed with Y100E on, it is not reflected on the inverter.
84
PROGRAMMING EXAMPLES
as follows:
<Timing chart when writing to EEPROM>
Y100E
W101
Inverter
running
frequency
()
()
Reflect to the inverter when Y100E turns on