Simple Magnetic Flux Vector Control (Pr.80, Pr.90) - Mitsubishi Electric F700 Instruction Manual

Adjust the output torque of the motor (current)
3.2.2

Simple magnetic flux vector control (Pr.80, Pr.90)

Providing optimum excitation to the motor can also produce high torque in a low-speed range.
Pr. 79
page 142
(Simple magnetic flux vector control)
Pr.100
page 66
Parameter
Number
Motor capacity (simple magnetic
80
flux vector control)
90 Motor constant (R1)
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 140)
POINT
⋅ 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
(1) Automatically control optimum torque (Pr.80)
⋅ Set the used motor capacity (equal to or one rank higher than the inverter capacity).
REMARKS
When using a constant-torque motor, set Pr. 71 Applied motor to "1" (constant-torque motor).
CAUTION
⋅ 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 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.
(2) Set the motor constant (Pr.90)
⋅ Normally setting is not necessary. When you need more torque under simple magnetic flux vector control for
other manufacturerís motor, set the motor primary resistance value (R1) for
value is 9999
"
♦ Parameters referred to ♦
Pr. 3 Base frequency, Pr. 19 Base frequency voltage
Pr. 60 Energy saving control selection
Pr. 71 Applied motor
Pr. 77 Parameter write selection
54
Name
(initial value), the motor constant is based on the Mitsubishi motor constant (SF-JR, SF-HRCA).
"
Refer to page 118
Refer to page 80
Refer to page 139
Initial Value Setting Range
01160
or less
9999 01800
or more
9999
01160
or less
01800
9999
or more
9999
Refer to page 64
Description
0.4 to
Set the motor capacity used.
55kW
Simple magnetic flux vector control
0 to
is performed.
3600kW
V/F control is performed
0 to 50Ω Used to set the motor primary
resistance value.
0 to
(Normally setting is not necessary.)
400mΩ
Use the Mitsubishi motor (SF-JR,
SF-HRCA) constants
connection. When the setting