4.2.34 General-purpose magnetic flux vector control selection (Pr. 80)
Pr. 80 "motor capacity"
You can set the general-purpose magnetic flux vector control.
! General-purpose magnetic flux vector control
Provides large starting torque and sufficient low-speed torque.
If the motor constants vary slightly, stable, large low-speed torque is provided without
specific motor constant setting or tuning.
Note: The setting range changes with the inverter: 0.2kW to 7.5kW, 9999 for the 400V
If any of the following conditions are not satisfied, faults such as torque shortage and
speed fluctuation may occur. In this case, select V/F control.
• The motor capacity is equal to or one rank lower than the inverter capacity.
• The number of motor poles is any of 2, 4, and 6. (4 poles only for the constant-torque
• Single-motor operation (one motor for one inverter) is performed.
• The wiring length between the inverter and motor is within 30m. (If the length is over
30m, perform offline auto tuning with the cables wired.)
(1) General-purpose magnetic flux vector control
• The general-purpose magnetic flux vector control can be selected by setting the
capacity of the motor used in Pr. 80.
0.1 to 7.5/
0.2 to 7.5 (Note)
Note: The setting range changes with the inverter: 0.2kW to 7.5kW, 9999 for the 400V class.
• When using Mitsubishi constant-torque motor (SF-JRCA), set "1" in Pr. 71. (When
using the SF-HRCA, perform the offline auto tuning.)
0.1kW to 7.5kW,
Set the motor capacity applied.
Pr. 71 "applied motor"
Pr. 83 "rated motor voltage"
Pr. 84 "rated motor frequency"
Pr. 96 "auto-tuning setting/status"
9999: V/F control
flux vector control