Goodrive350A series high-performance multifunction VFD
Basic operation guidelines
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The VFD uses the sensor-less vector control algorithm, which can be used to drive AMs and
permanent-magnet SMs simultaneously. As the core algorithm of vector control is based on accurate
motor parameter models, the accuracy of motor parameters affects vector control performance. It is
recommended to enter accurate motor parameters and autotune motor parameters before executing
vector control.
As the vector control algorithm is complicated, exercise caution before modifying vector control
function parameters.
Calculate i
m
ACR
exciting
current
Flux linkage
observation
Current
detection
Position
observation
Speed
identific
ation
Voltage
detection
ACR
torque current
Calculate i
T
Park
conversion
PWM
pulse
Rectifier
bridge
IGBT
bridge
Motor
Park
conversio
n
Clark
conversion
φ
+
-
+
-
+
-
U
V
U
W
Uu
i
U
i
V
i
W
U
V
U
W
Uu
i
M
i
T
1
w
r
1
w
r
φ
i
T
R S T
Function
code
Name
Description
Default
Speed control
mode
0: Sensorless vector control (SVC) mode 0
1: Sensorless vector control (SVC) mode 1
2: Space voltage vector control mode
3: FVC
Note:
To select 0, 1, or 3 as the control mode, enable
the VFD to perform motor parameter autotuning first.
2
Motor
parameter
autotuning
0: No operation
1: Rotary autotuning 1.
Comprehensive motor parameter autotuning. It is
recommended to use rotating autotuning when high
control accuracy is needed.
2: Static autotuning 1 (comprehensive autotuning);
static autotuning 1 is used in cases where the motor
0