EM303A, ac drive, frequency inverter, variable speed drive, variable f

Product Description

We offer different models ( from 0.*5 - **0KW) with best quality, stable performance, long life at cheapest price. EM**3A open loop frequency inverter Application: Applicable to most AC motor drive fields (0.*5 – **0KW), in all industries Features 1. Speed sensor less vector control technique; 2. Drive mode: V/F and vector control *-in*1 optional; 3. Speed / frequency / torque setting mode; 4. Auto recognition of motor’s parameters; 5. Frequency control range: 0 - **0HZ 6. Speed regulation width: 1:*0(SV), 1:**0(vector w/o PG) 7. Speed control accuracy: +/- 0.5Hz 8. Starting torque: **0% / 1Hz (SV), **0%/0.5Hz (vector w/o PG) 9. Overload current withstanding: **0% for 1 minute, **0% for 2 seconds *0. Auto voltage regulation - AVR *1. Built-in braking unit (0.*5 - *5KW), and independent B/R *5KW available *2. Simple PLC function is available *3. RS**5 interface: can realize master-slave control with multiple inverters *4. Support MODBUS RTU communication protocol; *5. 7 numeric , 3 output ( 2OC *1 relay) *6. 4 analog , 2 analog output; can effectively avoid drift and interference of analog signal by special treatment; *7. Users can select the desired code to display and set; *8. Reference power: ***0V / ***0mA *9. Droop control satisfies the machine that is driven by multiple inverters *0. Pendulum frequency, specialized for textile and chemical fiber Industry that needs traverse and winding *1. *-bit LED numeric keypad, can change to LCD upon request. *2. TI DSP ensures high speed and accuracy in complicated logic operation; *3. Independent heat sink with low noise design; *4. Sound protection against short-circuit, over current, over load, over voltage, lack phase, overheating or external fault etc. *5. Power supply: Single phase: **0V / **0V, *-phase, AC **0V / **5V / **0V, *0/*0Hz, ±5%.