Mitsubishi Electric FR-A700 Instruction Manual page 420

Selection and protection of a motor
Tune second applied motor
● When you want to switch two motors with one inverter, set the second motor in Pr. 450
Second applied motor (refer to section 6.12.2). Initial setting is without second applied motor.
Perform tuning using Pr. 574 Second motor online auto tuning. Pr. 574 is made valid when
the RT signal turns on.
Parameter number
Tab. 6-63: Related Parameters
NOTES
The RT signal acts as the second function selection signal and makes the other second
functions valid.
The RT signal is assigned to the terminal RT in the initial setting. By setting "3" in any of Pr.
178 to Pr. 189 (input terminal function selection), you can assign the RT signal to the other
terminal.
Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection)
may affect the other functions. Make setting after confirming the function of each terminal.
6 - 240
Description
51 Used as rated motor current and electronic thermal relay parameters.
450 Applied motor
Motor capacity (down to one rank lower than the inverter capacity, note that the
453
capacity should be 0.4kW or more)
454 Number of motor poles
Parameter