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Dongguan Longwei Electronic Technology Co., Ltd.

Inverter, Frequency Inverter, 380V Inverter manufacturer / supplier in China, offering Vector Frequency Inverter 3.7kw AC Electric Motor Driver Frequency Inverter, PS6403D 64V 3A Variable Adjustable Transformer Linear DC Power Supply, PS6402D 64V 2A Variable Transformer Linear DC Power Supply and so on.

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Supplier Homepage Product Ac power source Vector Frequency Inverter 3.7kw AC Electric Motor Driver Frequency Inverter

Vector Frequency Inverter 3.7kw AC Electric Motor Driver Frequency Inverter

FOB Price: US $268.66 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $268.66/ Piece
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Port: Shenzhen, China
Production Capacity: 100000pieces/Year
Payment Terms: L/C, T/T, Western Union, Money Gram

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Basic Info
  • Model NO.: H300T3.7GB
  • Output Type: Triple
  • Switch Mode: V/F Space Vector Control
  • Voltage of Power Supply: Medium Voltage Variable-Frequency Drive
  • Nature of DC Power: Current Variable-Frequency Drive
  • Brand: Lw
  • Power: 3.7kw
  • Transport Package: Paper Carton
  • HS Code: 8504409940
  • Application: General Transducer, Single-phase Transducer
  • Principle of Work: V/F Control Transducer
  • Main Circuit Type: Voltage
  • Link of Transformation: AC-AC Variable-Frequency Drive
  • Function: Simple Type, Elevator Special, Textile Special, Constant Torque Universal Type
  • Warranty: 18months
  • Trademark: LW
  • Origin: Dongguan, Guangdong, China
Product Description
1.Low frequency torque, 0.5 Hz moment output is 150%;
2.The power grid immediately drops the power to ensure the safe operation;
3.Automatic voltage stability, keep output voltage constant;
4.Automatically adjust the V/F curve according to load change;
5.A built-in EMC input filter, which is more anti-jamming;
6.The chip stores the communication keyboard, and the external distance is more than that;
7.Reliable speed tracking function automatically identifies the speed and direction of the motor;
8.Dual-analog output channel, 4-20ma, 0-10v analog output;
9.Optimized PID function, dormancy awakens function is more complete;
10.Running at zero speed, perfect the hover function in the air.
Widely used in injection molding machine, air compressor, nc machining, construction machinery, woodworking machinery, wire drawing equipment, ship manufacturing, metallurgical equipment, mining machinery, die casting equipment, etc.
Basic functional Max frequencyV/F control:0-1000Hz  vector control:0-400Hz
Carrier frequency0.5kHz-16kHz;can be adjusted automatically according to the responsible feature
Input frequency resolutionDigit setting:0.01Hz  analog setting:max frequency*0.025%
Control wayOpen loop vector control(SVC)   V/F control
Starting torqueG machine:0.5Hz/150%(SVC)  P machine:0.5Hz/100%
Adjusting range1:100(SVC)
Steady speed precision±0.5%(SVC)
Over load abilityG machine:150% related current 60s;180% related current 1s;
P machine:120% related current 60s;150% related current 1s
Torque increaseManual:0.1-30.0%; auto:0.0
V/F curve3kinds:Linear, multipoint, N power V/F curve
To the 1.2 power, to the 1.4, to the 1.6, to the 1.8, to the second power
Separation of V/F2kinds:Full separation and semi-separation
acceleration and deceleration curvesThe line or the S curve acceleration and deceleration;Four types of acceleration and deceleration time;acceleration and deceleration time range: 0.0-6500.0 s
Dc braking Dc brake frequency: 0.00 - maximum frequency;
Braking action time: 0.0-36.0 s;
Braking action value: 0.0-100%
Inching controlPoint frequency range: 0.00Hz - 50.00Hz
Point movement plus deceleration time range: 0.0-6500.0s
Simple PLC and multi-speed operationWith the built-in PLC, the control terminals can be run at up to 16 times
Built-in PIDIt is convenient to realize the closed-loop control system
AVR functionWhen the grid voltage changes, the output voltage can be maintained automatically
Stall controlAutomatic current voltage limit for running period, prevent frequent overflows of the voltage trip
Fast current limiting functionMinimize flow failure and protect the frequency converter
Torque limit and controlAutomatic restriction of torque during operation, prevent frequent tripping
Personalization capabilitiesSafety self-check of electrical peripheral equipmentThe peripheral equipment can be safely detected, such as grounding, short circuit, etc
Common dc bus functionIt can realize the function of multi-frequency converter common dc bus
MF.K keyProgrammable key: command channel switch/Positive &negative operation/point run feature selection
pendulum frequency functionMultiple delta frequency control functions
Timing controlSetting time range:0h-65535h
operationRun command channel3channels
Operation panel keys given,
Control terminal given,
The serial communication port is given
Can switch
Frequency source10kinds
The numeral is given, the analog voltage is given, the control terminal is given, the analog current is given, the pulse is given, the serial port is given
Can switch
Auxiliary frequency source10kinds
Frequency synthesis
Frequency tuning
Input terminalFive common digital input terminals, a high-speed pulse input terminal, which can reach up to 100KHz.Compatible with active PNP or NPN input.Two analog input terminals, one for input, another for voltage or current input
Output terminalA high-speed pulse output terminal (optional as open collector type),
The square wave signal output of 0khz-100khz,
The output of physical quantity such as setting frequency and output frequency can be realized.
A digital output terminal;Two relay output terminals,
Two analog output terminals, which can be chosen as 0/4ma-20ma or 0/2a-10v, can achieve the output of physical quantity such as setting frequency and output frequency
Display and key operationLED displayDisplay specification
Specification copyThe quick replication of the parameters can be implemented by the action panel
Key locking and function selectionCan implement partial or total lock of key, define the scope of part of the key, in order to prevent the wrong operation
Protect functionElectrical motor short circuit detection, input voltage deficiency phase protection, overcurrent protection, overvoltage protection, undervoltage protection, overheat protection, overload protection etc
environmentWorking environmentIndoors, not exposed to sunlight, dust, corrosive gases, flammable gases, oil mist, water vapor, water, or salt
AltitudeLess than 1000m
Working temperature-10ºC-+40ºC
humidityLess than 95%RH,There is no water condenses
vibrationLess than5.9m/s2(0.6g)
Storage temperature-20ºC-+60ºC

H300 Inverter Size and installation size (mm)
ModelInstallation size mmOutsize size mm Install the apertureWeight kg
 Vector Frequency Inverter 3.7kw AC Electric Motor Driver Frequency Inverter

Vector Frequency Inverter 3.7kw AC Electric Motor Driver Frequency Inverter
Vector Frequency Inverter 3.7kw AC Electric Motor Driver Frequency Inverter


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