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  • General Inverter
  • General Inverter
  • General Inverter
  • General Inverter
  • General Inverter
EM303B-General Purpose

EM303B Features.jpg

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Features
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Note:EM760 frequency converter has performed well since its launch and has been recognized by customers. 

Due to the company's product planning upgrade, the EM760 machine has been proven by the market 

and can now completely replace the EM500 and EM303B series products. 

Therefore, the company decided to delist the EM500 and EM303B series products.

Click here to chooose EM760:https://www.sineedrive.com/Variable-Frequency-Drives/vector-inverter


EM303B Series General Inverter

Open-loop VFD

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. 


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- CP

EM303B Parts Descriptions.jpg


Specifications
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ItemsSpecifications
InputRated   Voltage3-phase   380VAC±20%, 50~60Hz±5%, 
voltage imbalance rate<3%
OutputOutput   Voltage3-phase,   from 0 to Usupply.
Rated Output Current100%   rated current non-stop output
Max. Overload CurrentModel 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 FunctionsControl   ModeV/F,   SVC0, SVC1
Input ModeFrequency   (Speed) input, torque input
Start/Stop Control ModeKeypad,   control terminals (2-wire sequence, 3-wire sequence), RS485
Frequency Control Range0.00～600.00Hz
Input Frequency ResolutionNumeric   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 Time0.01~600.00   seconds/minutes
V/F FeaturesRated   output voltage: 20%~100% adjustable
Frequency base :20Hz~600Hz adjustable
Torque BoostAutomatic torque boost, fixed torque boost curve, customer   defined V/F curve scaling
Start Torque150%/1Hz(V/F),150%/0.5Hz(SVC)
Torque Control Accuracy±5%   rated torque (SVC1)
AVRAVR   is active while output voltage remains unchanged if input voltage is varying.
Automatic Current LimitAutomatically   limit output current, avoid tripping overcurrent frequently
DC BrakeBrake frequency:0.1~60Hz, brake time:0~30S, 
brake current:0~150% rated current
Signal Input SourceCommunication, analog voltage, analog current, preset speed,   simple PLC and their combinations
Special Function ControTextile WobbulationAchieve   textile wobbulation functions like wobbulation range, time and jump
Function of Input and OutputReference   Power Supply10V/20mA
Terminal Control Power Supply24V/150mA
Numeric Input Terminals7   programmable numeric input terminals
Analog Input Terminals4   analog inputs:2 voltage inputs (0~10V), and 2 current inputs(0~20mA)
Numeric Output Terminals2   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 Terminals2   programmable analog output terminals can output 0~10V or 0~20mA
Keypad DisplayLEDHuman   interactions with displays and control actuators
Parameter CopyUpload   and download parameter information of the inverter, copy parameters rapidly.
ProtectionsProtectionsShort   circuit, overcurrent, overload, overvoltage, undervoltage, phase loss,   overheating, external fault, and etc.
Application ConditionsInstallation   SiteIndoor,   with altitude less than 1000 meters, free from dust, corrosive gas, and   direct sunlight
Ambient Temperature-10℃～+40℃.   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-25℃～+65℃
Installation MethodWall   mounting, floor mounting, flush mounting
Degree of Protection Degree   of Protection IP20
Cooling MethodCooling   MethodForced   air cooling


Model Table
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EM303 Model Description.png

Rated   VoltageModel No. Motor   Power(kW) Rated Output   Current(A)
3-phase, 380VAC
    ±20%		EM303B-0R7G/1R1P-3B0.75/1.12.8/3.7
EM303B-1R1G/1R5P-3B1.1/1.53.7/4.8
EM303B-1R5G/2R2P-3B1.5/2.24.8/6.2
EM303B-2R2G/3R0P-3B2.2/3.06.2/8.0
EM303B-3R0G/4R0P-3B3.0/4.08.0/10.0
EM303B-4R0G/5R5P-3B4.0/5.510.0/13
EM303B-5R5G/7R5P-3B5.5/7.513/17
EM303B-7R5G/9R0P-3B7.5/9.017/20
EM303B-9R0G/011P-3B9.0/1120/26
EM303B-011G/015P-3B11.0/15.026/34
EM303B-015G/018P-3B15/18.534/41
EM303B-018G/022P-318.5/2241/48
EM303B-022G/030P-322/3048/60
EM303B-030G/037P-330/3760/75
EM303B-037G/045P-337/4575/90
EM303B-045G/055P-345/5590/115
EM303B-055G/075P-355/75115/150
EM303B-075G/090P-375/90150/180
EM303B-090G/110P-390/110180/220
EM303B-110G/132P-3110/132220/265
EM303B-132G/160P-3132/160265/310
EM303B-160G/185P-3160/185310/360
EM303B-185G/200P-3185/200360/380
EM303B-200G/220P-3200/220380/420
EM303B-220G/250P-3220/250420/470
EM303B-250G/280P-3250/280470/530
EM303B-280G/315P-3280/315530/600
EM303B-315G/355P-3315/355600/660
EM303B-355G/400P-3355/400660/740
EM303B-400G/450P-3400/450740/820


Installation Dimension
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EM303B Installation Dimensions.png

Model   No.WW1HH1H2DD1D2dFrame
EM303B-0R7G/1R1P-3B140125220205--1521201616(b)
EM303B-1R1G/1R5P-3B
EM303B-1R5G/2R2P-3B
EM303B-2R2G/3R0P-3B
EM303B-3R0G/4R0P-3B
EM303B-4R0G/5R5P-3B
EM303B-5R5G/7R5P-3B165148250235--1611261706(b)
EM303B-7R5G/9R0P-3B
EM303B-9R0G/011P-3B2151503523353172151722247(c)
EM303B-011G/015P-3B
EM303B-015G/018P-3B
EM303B-018G/022P-327020047045042424518725410(c)
EM303B-022G/030P-3
EM303B-030G/037P-3
EM303B-037G/045P-333524055053050024519025410(c)
EM303B-045G/055P-3
EM303B-055G/075P-339030069566563525020025912(c)
EM303B-075G/090P-3
EM303B-090G/110P-338630075372470028723129513(d)
EM303B-110G/132P-341630085582579330224631013(d)
EM303B-132G/160P-3
EM303B-160G/185P-349739711071076103633528534313(d)
EM303B-185G/200P-3
EM303B-200G/220P-3
EM303B-220G/250P-365645013481314126138323239013(d)
EM303B-250G/280P-3
EM303B-280G/315P-3
EM303B-315G/355P-380168014171383133038319039013(d)
EM303B-355G/400P-3
EM303B-400G/450P-3


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Tel : 027-87002560
Fax : 86-0755-86267216
Email : info@sineedrive.com

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