Mitsubishi Electric FR-A820-00046 Instruction Manual page 286

Speed control under Real sensorless vector control, vector control, PM sensorless vector control
Speed feed forward control
Model adaptive speed control
[Pr. 877 = 1]
RT
A
[Pr. 877 = 0] [Pr. 877 = 2]
RT
Torque bias Torque bias balance
Terminal 1
[Pr. 868 = 6]
Torque
setting filter
X42
Torque bias
X43
[Pr. 841 to 843]
B
[Pr. 800 ≠ 9, 13, 14]
Fig. 5-9: Control block diagram of speed control under Real sensorless vector control, vector control, PM sensorless
vector control
5 - 84
Speed feed
Load inertia ratio
forward gain
Js
[Pr. 880] [Pr. 881]
J [Pr. 880]
Torque
coefficient
Model speed
calculation
Model speed
1
+
control gain
Js
[Pr. 828] J s
-
compensation
Terminal 1 bias [C16, C17 (Pr. 919)]
[Pr. 846]
Terminal 1 gain [C18, C19 (Pr. 920)]
Fall-time torque bias terminal 1 bias [Pr. 847]
-
Fall-time torque bias terminal 1 gain [Pr. 848]
+
[Pr. 826 ≠ 9999]
[Pr. 826]
[Pr. 74]
[Pr. 826 = 9999]
[Pr. 836 ≠ 9999]
Torque bias
[Pr. 836]
selection
[Pr. 74]
[Pr. 840 = 1, 2]
[Pr. 836 = 9999]
[Pr. 840 = 0]
Vector control
Torque bias selection
[Pr. 800 = 0]
[Pr. 840 = 0 to 2]
[Pr. 840 = 9999]
Real sensorless
Torque limit
vector control
[Pr. 800 = 10]
PM sensorless
vector control
Terminal 1
[Pr. 868 = 4]
Terminal 4
[Pr. 858 = 4]
Speed feed forward Speed feed
torque limit forward filter
[Pr. 879] [Pr. 878]
Speed cont-
RT
+
rol P gain 1
[Pr. 820]
-
0
When torque bias is selected
Speed cont-
RT
rol P gain 2
[Pr. 830]
0
When torque bias is selected
Speed detection filter
Vector control
[Pr. 800 = 0]
Real sensorless vector control
Speed
[Pr. 800 = 10]
estimation
PM sensorless vector control
[Pr. 800 = 9, 13, 14]
Torque bias
filter
[Pr. 844]
Torque limit
+
+
[Pr. 22, 812 to 817]
Terminal 1 bias [C16, C17 (Pr. 919)]
Terminal 1 gain [C18, C19 (Pr. 920)]
Terminal 4 bias [C38, C39 (Pr. 932)]
Terminal 4 gain [C40, C41 (Pr. 933)]
[Pr. 826 ≠ 9999]
RT
Torque
[Pr. 826 = 9999]
setting filter
[Pr. 836 ≠ 9999]
RT
[Pr. 836 = 9999]
Communication option
Notch filter
+
[Pr. 1003]
[Pr. 1004]
+
Speed control
X44
[Pr. 1005]
integral time 1
[Pr. 821]
Integration
X44 cleared to 0
Torque bias
operation time
[Pr. 845]
+
+
Speed control
X44
integral time 2
[Pr. 831]
Integration
X44 cleared to 0
Torque bias operation time [Pr. 845]
RT
[Pr. 823]
RT
[Pr. 833]
Torque
Motor Encoder
control
[Pr. 810 = 0]
[Pr. 810 = 1]
[Pr. 810 = 2]
Constant power
range torque
Torque limit
characteristic
input method
selection
selection
[Pr. 803]
[Pr. 826]
[Pr. 74]
[Pr. 836]
[Pr. 74]
Parameters
+
+
B
I002505E_G