Delta VFD25AMS23ANSAA

Chapter 12 Descriptions of Parameter SettingsMS300
268
 When Pr.00-10 = 0 and you set Pr.00-11 to 2, the sensorless vector control diagram is as follows:
IM Space Vector Control (IMSVC):
AVR
LPF
LPF
Acc/Dec Time
Torque
Compensation
Current
Detection
Current
Detection
IGBT
PWM
IM
Pr07-24
Pr07-23
+
Pr01-01~01-08
Pr01-12~01-27
Fcmd
Pr00-20
LPF
Slip
Compensation
Pr07-25
U
a
U
b
U
c
+
U
a
U
b
U
c
Pr07-27
I
a
I
b
I
c
DC Bus Voltage
Detection
DC Bus Voltage
Protection
+
+
V/F Table
V/F Table