Справочник Пользователя для Mitsubishi Electronics FR-F740P

Adjustment of the output torque (current) of the motor

The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 201)

⋅ When Simple magnetic flux vector control is not used, set "9999" (initial value) in Pr.80.
⋅ Set the used motor capacity (equal to or one rank higher than the inverter capacity).

⋅ Normally setting is not necessary. When you need more torque under Simple magnetic flux vector control for other

manufacturer’s motor, set the motor primary resistance value (R1) for  connection. When the setting value is
"

9999" (initial value), the motor constant is based on the Mitsubishi motor constant (SF-JR, SF-HRCA).

Providing optimum excitation to the motor can also produce high torque in a low-speed range. 
(Simple magnetic flux vector control)

9999

55K or lower

0.4 to 
55kW

Set the capacity of the motor used to 
select Simple magnetic flux vector 
control.

75K or higher

0 to 

3600kW

9999

V/F control is performed

9999

55K or lower

0 to 50

Ω Used to set the motor primary 

resistance value.
(Normally setting is not necessary.)

75K or higher

0 to 

400m

Ω

9999

Use the Mitsubishi motor (SF-JR, SF-
HRCA) constants

⋅ The number of motor poles should be any of 2, 4 and 6 poles.
⋅ Single-motor operation (One motor for one inverter)
⋅ The wiring length from inverter to motor should be within 30m

When using a constant-torque motor, set Pr. 71 Applied motor to "1" (constant-torque motor).

⋅ When Simple magnetic flux vector control is selected, the rated motor frequency is set in Pr. 3 and the rated motor voltage is set in

Pr. 19. The base frequency voltage is handled as 200V class : 200V, 400V class : 400V when "9999" or "8888" is set in Pr. 19 .

⋅ Adjustable 5 points V/F, energy saving operation mode, Optimum excitation control function only under V/F control. They do not

function for Simple magnetic flux vector control.

♦ Parameters referred to ♦

S

 MFVC

S

 MFVC

S

 MFVC