EM303A Open loop vector control inverter

0.75 – 400 KW 

Applications

Universal open loop vector inverter, can be applied to most AC motors, such as textile machine(winder), lift, cable, blower and crane etc... 

Features 

1. Speedless sensor vector control technique;

2. Drive mode: V/F, open loop vector without PG, enclosed loop vector without PG;

3. Setting mode: Speed / frequency, torque;

4. Auto tuning of motor’s parameters;

5. Frequency control width： 0～600HZ

6. Speed regulation width：1:50(SV), 1:100(vector w/o PG)

7. Speed control accuracy：+/- 0.5Hz

8. Start-up torque：150% / 1Hz (SV), 150%/0.5Hz (vector w/o PG)

9. Max. overload current:（G）150% for 1 minute，180% for 2 seconds

10. AVR voltage stabilization technique

11. Built-in braking unit for power 0.75～15KW, can utilize braking resistor for quick stop;

12. Built-in PID

13. Built-in standard RS485 communication interface;

14. RS485, realize master-slave control system with multiple inverters through PLC or IPC;

15. Support MODBUS RTU communication protocol;

16. Numeric input terminals support forward / reverse logic control;

17. Numeric output terminals support level / impulse output, forward / reverse logic and delay output etc.

18. VS/IS/VF/IF analog input signal can be programmed as numeric input;

19. VP/VS/IS/VF/IF analog input signal, can effectively avoid drift and interference of analog signal after special treatment;

20. Users can select the desired code to display and set;

21. Reference power: 10V / 20mA

22. Terminal control power:  24V/150mA

23. Numeric terminal input: 7 channels;

24. Analog terminal input: 4 channels;

25. Numeric terminals output: 2 channels for OC output, and other 1 for relay output;

26. Analog terminal output: 2 channels ( 0 – 10 V / 0 – 20 mA);

27. Keypad: LED, can change to LCD upon request.

28. DSP by American TI Company performs complicated logic operation with high speed and accuracy;

29. Cooling method: Forced air cooling;

30. Storage temperature： -25～65C

31. Humidity： 20%～90%RH

32. Self-protection against short-circuit, over current, over load, over voltage, lack phase, overheating or external fault etc.

Power supply: 3-phase, AC 380V / 415V / 440V, 50/60Hz, +/-5%.