INVT GD270-030-4 User Manual

Goodrive270 series VFD for fan and pump Basic operation guidelines
-48-
Integrated with the sensor-less vector control algorithm, the VFD can drive both AMs and
permanent-magnet SMs. 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
identifying
Voltage
detection
ACR
torque current
Calculate i
T
Park
conversion
PWM
pulse
Rectifier
bridge
IGBT
bridge
Motor
Park
conversion
Clark
conversion
ij
+
-
+
-
+
-
U
V
U
W
Uu
i
U
i
V
i
W
U
V
U
W
Uu
i
M
i
T
1w
r
1w
r
ij
i
T
R S T
Function
code
Name Description Default
P00.00
Speed control
mode
0: Sensorless vector control (SVC) mode 0
1: Sensorless vector control (SVC) mode 1
2: Space voltage vector control mode
Note: Before using a vector control mode (0 or 1),
enable the VFD to perform motor parameter autotuning
first.
2
P00.15
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 required.
2: Static autotuning 1 (comprehensive autotuning); static
0

INVT GD270-030-4 Specifications

General

Brand	INVT
Model	GD270-030-4
Category	Water Pump
Language	English