Mitsubishi Electric FR-E720-0.1K(SC) Instruction Manual page 119

(2) Use two motors (Pr. 450)
Set Pr. 450 Second applied motor to use two different motors with one inverter.
When "9999" (initial value) is set, no function is selected.
When a value other than 9999 is set in Pr. 450, the second motor is valid when the RT signal turns ON.
For the RT signal, set "3" in any of Pr. 178 to Pr. 184 (input terminal function selection) to assign the function.
REMARKS
The RT signal acts as the second function selection signal and makes the other second functions valid. (Refer to page 142)
NOTE
Changing the terminal assignment using Pr. 178 to Pr. 184 (input terminal function selection) may affect other functions.
Set parameters after confirming the function of each terminal.
Set this parameter correctly according to the motor used.
Incorrect setting may cause the motor to overheat and burn.
Parameters referred to
Pr. 0 Torque boost
Pr. 12 DC injection brake operation voltage
Pr. 80 Motor capacity, Pr. 81 Number of motor poles
Pr. 82 to Pr. 84, Pr. 90 to Pr. 94 (motor constants), Pr. 96 Auto tuning setting/status
Pr. 800 Control method selection
CAUTION
Refer to page 85
Refer to page 128
Refer to page 120
Refer to page 84
Selection and protection of a motor
Refer to page 120
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