AVF80 Series Sensor-less Vector Control Frequency Inverter ( also termed frequency converter ,frequency inverter, adjustable-frequency drive, variable speed drive, AC drive, micro vfd or vfd inverter ) is a function enhanced product with strong stability.
It takes use of Infineon IGBT and the TI DSP chip set, completely optimizes vector control and V/F control. It has been widely deployed in various industrial environment, and special in situations requiring speed control precision pump torque response speed and low-frequency output.
1. Two control modes: V/F control, and sensor-less vector control;
2. Starting torque: 0.4Hz-20Hz;
3. Support brake units, and the braking resister can be connected outside for a quick stop;
4. Five kinds of V/F control, which are constant torque V/F curve, One kind of customer defined V/F curve, 3 kinds of down torque curve (2.0/1.7/1.2 times the power).
5. Through PLC or internal control terminal, multi-speed control and PID control could be realized. And users could combine a variety of operating modes while it’s necessary;
6. Supporting multi-frequency deploy methods: digital setup, PID setup, analog quantity setup, and communication setup;
7. AVF508 is Equipped with jump frequency control, which prevents mechanical resonance and makes the system more stable and reliable;
8. AVF508 has build-in PI in order to establish close-loop control system easily;
9. AVF508 is designed with the central frequency switch function, which let the end user to fix the central frequency while it is necessary;
10. AVF508 has been equipped with RS485 communication interface, which support MODBUS protocol with ASCII and RTU forms;
11. Working with water supply accessory to realize multiple-pump stable pressure water supply function.
Input Power Supply
Speed tracing, PID control, auto speed compensation, AVR, torque
5 Digital Display,status idicator
0-90% relative humidity
<5.9 m/s2 (0.6M)
Digital:0.01Hz; Analog:1‰ of Max Operating Frequency
digital setpoint,analog setpoint,serial communication setpoint,multi-speed,PID setpoint, etc
0~5V,0~10V, 4~20mA ,0~20mA
Frequency lower limit,start frequency,stop frequency,three skip
0.1-6000s four selectable combinations of independent acceleration
Set V/F curve
Auto torque increase: according to the output current
6 multi-function input terminal for 8 multi-speed,easy PLC,
5 multi-function output terminal for display and warm of on running,
AVR,Decelerating stop or free-stop,DC brake,auto restart tracking,easy PLC auto energy saving,
Motor dirver of electronic circuit : (contstant torque 150% at 1 minute
Fuse off,motor stop
220V:DCvoltage>400V; 380V:DC voltage>800V
Restart with freququency track after instantaneous stop
Stall prevention for acceleration and deceleration
Short circuit of
protection for electronic circuit
Heatsink overheat protection,reverse limit,fault reset,parameter
Support all the accessories around the inverter to buy, according to your actual situation matching.Please contact us to confirm all the details or refer to the following figure.