Delta VFD-ED Series

Chapter 12 Descriptions of Parameter Settings | VFD-ED
12-00-12
 When Pr.00-09=8, FOC Permanent Motor control (FOCPM) control diagram is as follows:
U
a
U
b
U
c
IGBT
PWM
dq
abc
q-
axis ACR
ASR
LPF
Pr.10-18
Torque Limit
ASR
Speed
Control
Fcmd
Pr.00-14
-
θ
e
ω
r
d-
axis ACR
Flux Weakening
Regulator
dq
abc
ʃ
AVR
Pr.00-13
Speed
Feedback
+
Feed Forward
Control
I
q
*
I
d
*
Maximum Torque
Per Ampere
+
+
I
q
*
DC Bus
Voltage
Detection
DC Bus
Voltage
Protection
PM
Encoder
Accel. / Decel. Time
Pr.01-12–Pr.01-30
Pr.11-10
++
Pr.07-24–Pr.07
-27
Pr.01-01–Pr.01-02 Pr.08-01–Pr.08-09
Pr.10-00–Pr.10-02
I
a
I
b
I
c
q-axis
Current
Calculator
Pr.10-11
–Pr.
10-16
Pr.11-06
–Pr.
11-08,
Pr.11-19