Delta VFD2A8MS21ANSAA

Chapter 12 Descriptions of Parameter SettingsMS300
270
 When Pr.00-10 = 0 and you set Pr.00-11 to 5, IMFOC Sensorless control diagram is as follows:
dq
abc
dq
abc
q-axis ACR
Speed
Observer
θ
e
ω
r
Pr.10-25
Active
Magnetic
Regulator
Slip
Calculator
+
ω
sl
ʃ
Pr.10-26
Pr.10-35 Pr.10-36
Frequency
Limit
+
d-axis ACR
I
d
*
I
q
*
U
a
U
b
U
c
I
a
I
b
I
c
AVR
Pr.07-23
DC Bus
Voltage
Detection
DC Bus
Voltage
Protection
IGBT
PWM
IM
Pr.01-01~01-02 Pr.05-01~05-09
U
a
U
b
U
c
Pr.11-14
Fcmd
Pr.00-20
LPF
Torque Limit
Pr.11-17~11-20
ASR
Acc/Dec Time
Pr.01-12~01-27
-
Pr.11-00 bit0=0
set Pr.11-06~11-11
Pr.11-00 bit0=1
set Pr.11-03~11-05
+
q-axis
Current
Calculator