Specification :

We offer different models ( from 0.75 - 400KW) with best quality, stable performance, long life at cheapest price.

EM303A open loop frequency inverter

Application: Applicable to most AC motor drive fields ( 0.75 – 400KW) , in all industries

Features

1. Speed sensor less vector control technique;

2. Drive mode: V/ F and vector control 2-in-1 optional;

3. Speed / frequency / torque setting mode;

4. Auto recognition of motor’ s parameters;

5. Frequency control range: 0 - 600HZ

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

7. Speed control accuracy: + / - 0.5Hz

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

9. Overload current withstanding: 150% for 1 minute, 180% for 2 seconds

10. Auto voltage regulation - AVR

11. Built-in braking unit ( 0.75 - 15KW) , and independent B/ R 45KW available

12. Simple PLC function is available

13. RS485 interface: can realize master-slave control with multiple inverters

14. Support MODBUS RTU communication protocol;

15. 7 numeric input, 3 output ( 2OC + 1 relay)

16. 4 analog input, 2 analog output; can effectively avoid drift and interference of analog signal by special treatment;

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

18. Reference power: 0-10V / 0-20mA

19. Droop control satisfies the machine that is driven by multiple inverters

20. Pendulum frequency, specialized for textile and chemical fiber Industry that needs traverse and winding

21. 5-bit LED numeric keypad, can change to LCD upon request.

22. TI DSP ensures high speed and accuracy in complicated logic operation;

23. Independent heat sink with low noise design;

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

25. Power supply: Single phase: 220V / 230V, 3-phase, AC 380V / 415V / 440V, 50/ 60Hz, ± 5% .