Standard Inverters

  • EM303B Standard Inverter
  • EM303B Standard Inverter
EM303B Standard Inverter EM303B Standard Inverter

EM303B Standard Inverter

Specifications 

Dimensions        

Accessories 

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Specifications


Optional Accessories

1.Salient features


①.  V/F & Sensorless Vector Control (SVC)

②.  Dual CPU resulting in better performance & stability

              

EM303B Standard Inverter(图1)

③.  Built-in DC reactor for 90kW- 400kW.
④.  Stationary/Rotational auto tuning of motor parameters

⑤. Detachable standard LED keyboard with in-built potentiometer; Optional LCD keyboard             

⑥.  Normal duty (P)/Heavy duty (G) dual rated drive

⑦.  Modbus RTU communication

⑧.  Built-in PID control

⑨.  Built-in braking IGBT up to 15kW

.  Programmable digital terminals:7 digital inputs & 2 digital outputs,3 multifunction outputs: 1 C/O relay & 2 open collector transistor

⑪.  Analog terminals: 4 inputs & 2 outputs.All analog inputs can also be programmed as digital multifunction inputs.Analog outputs can be selected for voltage & current signals by changing jumper

⑫.  Load disturbance compensation for trip free operation

⑬.  Auto motor speed search at restart

⑭.  Flange mounting (90~200kW) & floor mounting with optional chassis (5kW & above)

2.Wiring diagram

        

EM303B Standard Inverter(图2)

 

EM303B Standard Inverter(图3)


3.Specifications

Items

Specifications

 Mains supply

 Rated Voltage

 3-phase 380 V-20%~415V+20%, 50/60Hz±5%, voltage imbalance rate<3%

 Output

 Output Voltage

 3-phase, from 0 to mains supply

 Rated Output    

 Current

100% rated current non-stop output

 Max. Overload  Current

 Model G:150% rated current for 1 minute, 180% rated current for 10 seconds

 Model P:120% rated current for 1 minute, 150% rated current for 10 seconds

 Basic Control  Functions 

 Control Mode

 V/F, SVC (SVC0, SVC1)

 Input Mode

 Frequency (Speed) input, torque input

 Running Mode

 Keyboard, control terminals (2-wire sequence, 3-wire sequence),  RS485

 Frequency  Control Range

 0.00~600.00Hz

 Input Frequency  Resolution

 Digital input: 0.01Hz

 Analog input: 0.1% of maximum frequency

 Speed  Regulation  Range

 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: 20.00~600.00Hz 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 frequent overcurrent  tripping

 DC Brake

 Brake frequency: 0.1~60.0Hz, 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

 Functions

 Textile  Wobbulation

 Realize textile wobbulation function like wobbulation range,  time and jump

 Input /

 Output

 Functions

 Reference  Power

 10V/20mA

 Terminal Control  Power

 24V/150mA

 Digital Input  Terminals

 7 programmable digital input terminals

 Analog Input  Terminals

 4 analog inputs: 2 voltage input(0~10V) and 2 current  inputs(0~20mA)

 Digital 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 N/O,  and EB-EC is N/C

 Analog Output  Terminals

 2 programmable analog output terminals can output: 0~10V  or 0~20mA

 Keyboard

 Display

 LED

 Human interactions with displays and control actuators

 Parameter Copy

 Upload and download parameter information of the inverter,  copy parameters rapidly

 Protection

 Protection

 Overcurrent, overvoltage, short circuit, overload, phase loss, undervoltage,  overheating, external faults, etc.

 Application  Conditions

 Installation Site

 Indoor, with altitude less than 1,000 meters, free from dust  and corrosive gas, and  direct sunlight

   Ambient  Temperature

 -10~+50. Derated from ambient +40~+50,

 20%~90%RH (no condensation)

 Vibration

 <0.5g

 Storage  Temperature

 -20~+65

 Installation  Method

 Wall mounting, flush mounting

 Protection Grade

 IP20

 Cooling Method

 Forced air cooling

 Safety Standard

 IEC61800-5-1:2007

 EMC Standard

 IEC61800-3:2004



4.Model Numbering Scheme

EM303B Standard Inverter(图4)


5.Model Number List

EM303B Standard Inverter(图5)

Remarks:

EM303B is an integrated model with G (fixed torque) and P (square torque) in one. The data listed above is of Model G. When applied to square torque like blower, water pump and etc., the power ratings of applicable motor can be one grade higher. See inverter's nameplate for details.



Dimensions


EM303B Outlook


EM303B Standard Inverter(图6)


Overall and Installation Dimensions


EM303B can be classified to 10 sizes for total 30 models. 

The keypad can be installed on the metal panel separately with a hole size of 116.5±0.1(L)*71.5±0.1 (W)mm, and applicable metal panel thickness:1.2~2.0mm.

EM303B Standard Inverter(图7)

EM303B Standard Inverter(图8)

Overall Installation Dimensions of EM303B

EM303B Standard Inverter(图9)

Flush Mounting

EM303B-090,EM303B-110~132,EM303B-160~200 can be installed in flush mounting. The mounting method:

Please move the flanges on the top and bottom of the housing from the place as shown below. It only needs to unscrew the boltsof flanges and assemble at the right places. See Figure 2-8 for the installation dimensions.

EM303B Standard Inverter(图10)

EM303B Standard Inverter(图11)


Installation Dimensions for Flush Mounting

EM303B Standard Inverter(图12)

Packing details of EM303B

EM303B Standard Inverter(图13)




Accessories

Optional Accessories

Items

Describe

Picture

LCD keyboard
(optional)

Display the working status information of the inverter via the LCD screen

EM303B Standard Inverter(图14)


Specification of external AC reactors

EM303B Standard Inverter(图15)

EM303B Standard Inverter(图16)

Categories

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Tel:

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