Mitsubishi Electric FR-A820-00046 Instruction Manual page 237

Parameters
Pr.
451
G300
For the FR-A820-03160(55K) or lower, and the FR-A840-01800(55K) or lower.
For the FR-A820-03800(75K) or higher and the FR-A840-02160(75K) or higher.
The initial value differs according to the voltage class. (200V class/400V class)
When the IPM motor MM-CF is selected by Pr. 71 "Applied motor", the rated frequency of the MM-CF
is used. When a PM motor other than the MM-CF 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, Real sensorless vector control or vector 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 5-324.)
FR-A800
Initial
Name
value
Second motor control
method selection
Setting range
0 to 6
10 to 12
13, 14
20
100 to 106
9999
110 to 112
110, 113, 114
9999
Control method
Description
Vector control
Real sensorless vector control
PM sensorless vector control
V/F control (Advanced magnetic flux vector
control)
Vector control
Real sensorless vector
control
Fast-response
operation
PM sensorless vector
control
The setting value of Pr. 800 "Control method
selection" is used.
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