Changing The Control Method - Mitsubishi Electric FR-F820-04750 Instruction Manual

Control method
5.2.1

Changing the control method

Set the control method.
V/F control, Advanced magnetic flux vector control, and PM motor control are the control methods
available for selection.
When using an IPM motor MM-EFS or MM-THE4, simply performing the IPM parameter initialization
enables the PM motor control.
● The PM motor test operation can be performed by setting Pr. 800 "Control method selection".
Pr.
71
C100
80
C101
81
C102
83
C104
84
C105
800
G200
For the FR-F820-02330(55K) or lower, and the FR-F840-01160(55K) or lower.
For the FR-F820-03160(75K) or higher and the FR-F840-01800(75K) or higher.
The initial value differs according to the voltage class. (200V class/400V class)
When the IPM motor MM-EFS or MM-THE4 is selected by Pr. 71 "Applied motor", the rated frequency
of the MM-EFS or MM-THE4 is used. When a PM motor other than the MM-EFS or MM-THE4 is
selected by Pr. 71, 75 Hz (for the motor capacity 15 kW or lower) or 100 Hz (18.5 kW or higher) is used.
Setting the motor capacity and the number of motor poles (Pr. 80, Pr. 81)
● Motor specifications (the motor capacity and the number of motor poles) must be set to select
Advanced magnetic flux vector control, or PM motor control.
● Set the motor capacity (kW) in Pr. 80 "Motor capacity" and set the number of motor poles in Pr. 81
"Number of motor poles".
NOTE Setting the number of motor poles in Pr. 81 changes the Pr. 144 "Speed setting switchover" setting
automatically. (Refer to page 5-191.)
5 - 38
Initial
Name
value
Applied motor
Motor capacity
Number of motor poles
Rated motor voltage
400 V
Rated motor frequency
Control method selection
Setting range
0 to 6, 13 to 16, 20, 23,
24, 40, 43, 44, 50, 53, 54,
70, 73, 74,210, 213, 214,
0
240, 243, 244, 8090,
8093, 8094, 9090, 9093,
9094
0.4 to 55 kW
9999
0 to 3600 kW
9999
2, 4, 6, 8, 10, 12
9999
9999
200/
0 to 1000 V
10 to 400 Hz
9999
9999
9
20
20
Description
By selecting a standard motor or constant-
torque motor, the thermal characteristic and
motor constant of each motor are set.
Set the applied motor capacity.
V/F control
Set the number of motor poles.
V/F control
Set the rated motor voltage (V).
Set the rated motor frequency (Hz).
The setting value of Pr. 3 "Base frequency" is
used.
PM motor test operation (Motor is not driven
even if it is connected.)
Normal operation (Motor can be driven.)
Parameters