User Manual EM303B General Purpose Inverter 1.1.2 EM303B Technical Specifications Table 1-2 EM303B Technical specifications 9 Items Specifications 3-phase 380VAC±20%, 50~60Hz±5%, Input Rated Voltage voltage imbalance rate Output Voltage 3-phase, from 0 to Usupply. Rated Output Current 100% rated current non-stop output Model G: 150% rated current for 1 minutes, 180% rated Output current for 10 seconds Max. Overload Current Model P:
120% rated current for 1 minutes, 150% rated current for 10 seconds Control Mode V/F, SVC0, SVC1 Input Mode Frequency (Speed) input, torque input Keypad, control terminals (2-wire sequence, 3-wire Start/Stop Control Mode sequence), RS485 Frequency Control Range 0.00～600.00Hz Numeric input: 0.01Hz, analog input: 0.1% of maximum Input Frequency Resolution frequency Governor Deflection 1:50(V/F), 1:100(SVC) Speed Control Accuracy ±0.2% rated synchronous speed Acceleration/Deceleration Time 0.01~600.00 seconds/minutes Basic V/F Features Rated output voltage:
20%~100% adjustable Frequency base :20Hz~600Hz adjustable Control Automatic torque boost, fixed torque boost curve, Functions Torque Boost customer defined V/F curve scaling Start Torque 150%/1Hz(V/F),150%/0.5Hz(SVC) Torque Control Accuracy ±5% rated torque (SVC1) AVR is active while output voltage remains unchanged if AVR input voltage is varying.
Automatically limit output current, avoid tripping Automatic Current Limit overcurrent frequently Brake frequency:0.1~60Hz, brake time:0~30S, DC Brake brake current:0~150% rated current Communication, analog voltage, analog current, preset Signal Input Source speed, simple PLC and their combinations Special Achieve textile wobbulation functions like wobbulation Function Textile Wobbulation range, time and jump Control Reference Power Supply 10V/20mA Terminal Control Power Supply 24V/150mA Numeric Input Terminals 7 programmable numeric input terminals 4 analog inputs:2 voltage inputs (0~10V), and 2 current Analog Input Terminals Function of inputs(0~20mA) Input and 2 OC outputs and 1 relay output are programmable.
Output Maximum output current of OC: 50mA. Relay contact Numeric Output Terminals capacity: 250VAC/3A or 30VDC/1A. When relay acts, EA-EC is on, and EB-EC is off. 2 programmable analog output terminals can output 0~10V Analog output Terminals or 0~20mA LED Human interactions with displays and control actuators Keypad Upload and download parameter information of the Display Parameter Copy inverter, copy parameters rapidly. Short circuit, overcurrent, overload, overvoltage, Protections Protections undervoltage, phase loss, overheating, external fault, and etc. Indoor, with altitude less than 1000 meters, free from dust, Installation Site corrosive gas, and direct sunlight -10℃～+40℃.
In the temperature range +40 °C…+50 °C, Application Ambient Temperature the rated output current is decreased by 1% for every Conditions additional 1 °C. 20%～90%RH (no condensation) Vibration ＜0.5g Storage Temperature -25℃～+65℃ Installation Method Wall mounting, floor mounting, flush mounting Degree of Protection IP20 Cooling Method Forced air cooling