Mitsubishi Electric FR-A820-00046 Instruction Manual page 278

Speed control under Real sensorless vector control, vector control, PM sensorless vector control
Block diagram of easy gain tuning function
<Vector control>
Command
Fig. 5-24:
NOTE Easy gain tuning is valid for the first motor. When applying the second motor (RT signal is ON),
tuning is not performed.
5 - 98
Automatic setting
Speed control/position loop gain
+
Model speed control gain
-
[Pr. 820, Pr. 821, Pr. 828, Pr. 422]
ON when [Pr. 819 = "1, 2"]
Load inertia ratio
Gain table
[Pr. 880]
Response level
setting [Pr. 818]
Block diagram of easy gain tuning function
+
Current
control
-
Torque command
ON when
[Pr. 819 = "1"]
Load inertia ratio
estimation
section
Speed/position feedback
Parameters
Load
inertia
moment
Detector
Motor
Encoder
Actual motor speed
I002516E