General Purpose 3 Phase VFD 380V 50Hz-60Hz AC Drives Frequency Drives with SVC Vvf Control

• Application: General Transducer
• Output Type: Triple
• Principle of Work: Vector Control Transducer
• Switch Mode: PWM Control
• Main Circuit Type: Voltage
• Voltage of Power Supply: Medium Voltage Variable-Frequency Drive
• Model NO.: EM303B
• Link of Transformation: AC-AC Variable-Frequency Drive
• Nature of DC Power: Voltage Variable-Frequency Drive
• Function: General VFD
• Brand: Sinee
• Control Mode: V/F, SVC0, SVC1
• Input Mode: Frequency (Speed) Input, Torque Input
• Frequency Control Range: 0.0 - 600.00Hz
• Reference Power Supply: 10V/20mA
• Terminal Control Power Supply: 24V/150mA
• Vibration: < 0.5g
• Degree of Protection: IP20
• Cooling Method: Forced Air Cooling
• Transport Package: Wooding
• Trademark: SINEE
• Origin: China
• Production Capacity: 400000pieces/Year

Product Description

EM303B Series General Inverter

EM303B is a general purpose vector control inverter. An induction motor with the help of EM303B canpossess fast speed response and torque control ability as a DC motor which makes the motion control system stable, precise,and quick. 

Product Description

Main Features:

1. SVC (Sensorless vector control):Torque control accuracy: 5% rated torque. Speed control accuracy: ±0.2% rated synchronous speed. 
2. VVF (Vector decoupling based VF control): The steady performanceis the same as that in SVC.
3. Wide speed regulation range, load capacity at low frequency: SVC/0.5Hz/150% rated load, VVF/1.0Hz/150% rated load.
4. Optimized current and voltage protection algorithm ensures that motor can accelerate/deceleratein 0.1S.
5. AVR function makes output voltage stable at grid voltage fluctuation.
6. Load disturbance compensation ensures failure-free operation of motor.
7. Auto-searching motor speed at restart smoothes thestart of motor without current over-shoot.
8. 2 acceleration/deceleration modes: linear and S curve.
9. The performance and stability are improved significantly with dual- CPU.

Product Parameters

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

Installation Instructions

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