WK300 ACdrives

WK brand WK300 AC drives are highly adaptable, supporting a wide variety of motor types, from standard asynchronous motors to variable frequency motors, synchronous motors, high speed motors, and even spindle motors. They boast excellent versatility, making them suitable for a range of applications across various loads, be it constant torque or power, as well as for fans and pumps.

SKU: WK-INTRODUCTION-TO-WK300-VFD-FOR-MOTOR Category: Product ID: 24755

Description

WK300 Series High Performance Vector Drives

WK300 AC drives are unparalleled in their ability to accommodate an extensive range of motor types. This includes ordinary asynchronous motors, variable frequency motors, synchronous motors, high-speed motors, and spindle motors. With their exceptional versatility, our drives can meet the demands of an array of loads, including those requiring constant torque, constant power, fans, or pumps. Rest assured that with our state-of-the-art drives, your motor needs will be met with precision, efficiency, and unparalleled adaptability

low frequency inverter

WK300 Series High Performance Vector Frequency inverter feature.

  • Powerful performance

High-performance vector control, high precision speed output

Super strong overvoltage and overcurrent suppression capability

Low-speed high-torque, improve equipment low-speed control performance

  • Diversified functions

Software and hardware modular design, powerful expansion ability

High-performance, easy-to-use keyboards with a wide variety of keyboard types

Support host computer operation, reduce debugging time and difficulty

  • Compact structure

Full range of book-style narrow body design, high power density

Support embedded, wall-mounted, cabinet installation

Direct heat dissipation from top to bottom, multiple drives can be installed side by side device, greatly reducing the volume of the electrical cabinet

  • Stable and reliable

Independent air duct design, adapt to the harsh external environment

Advanced heat dissipation design to effectively ensure product thermal reliability

Strict component selection and testing procedures, and rigorous whole-machine testing to ensure product quality

  • Speed, torque, position control integration Torque and speed control performance

Ensure smooth operation of the machine, quick response and small torque ripple.

vfd inverter

vfd single phase to three phase

low frequency inverter

vfd inverter

WK300 VFD INVERTER TECHNICAL SPECIFICATIONS

Power inputRated input voltage200V Voltage Class:single/three-phase 200V~240V
400V Voltage Class:Three-phase 380V~440V
690V Voltage Class:Three-phase 660V~690V
Frequency50Hz/60Hz,tolerance ±5%
Voltage range-15%~+15%
Voltage out-of-balance rate<3%,distortion rate as per the
requirements of IEC61800-2
Rated input currentSee Section 2.3
Power onputApplicable motor
(kW)
See Section 2.3
Rated current (A)See Section 2.3
Output voltage (V)3-phase:0%~rated input voltage,error<±3%
Output frequency
(Hz)
0.00%~600.00Hz;unit:0.01Hz
Overload capacityG type:150%-60 seconds,P type:120%-60 seconds
Control characteristicsControl modeV/f control
Sensorless vector control (SVC)
Feedback vector control(FVC)
Range of
speed regulation
1:200 (Sensor-less vector control)
1:1000(Feedback vector control)
Speed accuracy±0.5%(Sensor-less vector control)
±0.02%(Feedback vector control)
Torque control
accuracy
5%(SVC),3%(FVC)
Torque increaseAutomatic torque lifting;Manual torque increased by 0.1-30.0%
Starting torque0.25Hz:150%(Sensor-less vector control)
0Hz:200%(Feedback vector control)
Basic functionsOutput frequency0.00~599.00Hz
ACC/DEC time0.00~30000s
Carrier frequency1kHz~16kHz
Frequency settingDigital setting +control panel
Communication
Analog setting
Terminal pulse setting
Motor
start-up methods
Started from starting frequency
DC brake start-up
Speed tracking start
Motor stop methodsRamp to stop
Free stop
Dynamic braking
capacity
Brake unit working voltage:
200V level:325-375V/400V level:650V-810V/
690V level:1000~1200V
Service time:0-100.0s;brake unit for VFD300-110kW and
below can be inbuilt optionally.See table 2.3-1
Basic functionsDC brake capacityDC brake start frequency:0.00~600.00Hz
DC brake current:0.0~100.0%
DC brake time:0.0~100.00s
Input terminals5 digital inputs, one of which can be used for high-speed pulse input
2 analog inputs, which is voltage/current programmable
Output terminals1 digital output terminal, optional as high-speed pulse output terminal, can support 0.01 ~ 100kHz square wave signal output
1 analog output , voltage/current output programmable;
can output signals such as frequency setting, or output frequency, etc.
1 Relay output terminal,drive capability:AC250V,3Aï¼›DC30V,5A.
Communication terminal1 channel RS485 communication , can support up to 38400bps communication rate
ExtensionsSupports multiple I/O, relay outputs,resolver, differential and open collector photoelectric encoders, Modbus, ProfibusDP, CANopen, Profinet, EtherCAT, PT1000, PT100….
Featured functionsParameter copy, parameter backup, common DC bus, free switchover between two motors’ parameters, various master & auxiliary setting and switchover, flying start, a variety of Accel/Decel curves optional, brake control, 15-step speed control programmable (2-step speed supports flexible frequency command), wobble frequency control, count function, three history faults, over excitation brake, over voltage stall protection, under voltage stall protection, restart on power loss, skip frequency, frequency binding, four kinds of Accel/Decel time, motor thermal protection, flexible fan control, process PID control, simple PLC, multi-functional key programmable, droop control, autotuning,field-weakening control, high-precision torque restraint, V/f separatedcontrol
Protection functionsRefer to Chapter 9-Trouble Shooting
EnvironmentPlace of operationIndoors, no direct sunlight, free from dust, corrosive gases, flammable gases, oil mist, water vapor, water drop or salt,etc.
Altitude0~2000m. De-rate 1% for every 100m when the altitude is above 1000 meters
Ambient-10℃~50℃, The rated output current should be derated
temperature1% for every 1℃ when the ambient is 40℃~50℃
Relative humidity5~95%, no condensation
VibrationLess than 5.9m/s² (0.6g)
Storage-20℃~+60℃
temperature
OthersRated power
Efficiency at rated Amps7.5kW and below:≥93%
11~45kW:≥ 95%
55kW and above:≥98%
Installation110kW and below support wall-mounted and embedded installation (optional)
185kW and above support wall-mounted installation and cabinet installation (optional)
IP gradeIP20
Cooling methodForced air cooling

vfd single phase to three phase

Function description of the control terminals

CategoryTerminalTerminal NameFunction Description
Power source10V-GND+10V power supply1,External 10V power supply
2,Generally used for external potentiometer power supply, potentiometer resistance range 1kΩ~10kΩ
3,Maximum output current 20mA
24V-COM+24Vpower supply1,Provide +24V power supply to external unit. Generally, it provides power supply to DI/DO terminals and external sensors.
2,Maximum output current:100mA
3,Do not use this power supply as an external power supply
AnalogAI1Analog input terminalSupports 0V to 10V voltage or 0/4mA to 20mA current input, which is selected by jumper AI1(J10). The default voltage input is 0V to 10V
input
Digital inputDI1Digit input terminal 11,Multifunctional digital input, through F5-00 to F5-03 to set the function
DI2Digit input terminal 22,Supports external NPN and PNP input. You can select the input mode by using jumper DI(J1). By default, the input mode is NPN
DI3Digit input terminal 33,DI4 can be used as a pulse input terminal. This function is optional.
DI4Digit input terminal 4
AnalogAO1Analog output terminalSupport 0V~10V voltage or 0/4mA~20mA current output, selected by jumper AO1(J4), default is 0V~10V voltage output
output
DigitalDO1Digital output1,DO1 open-collector output
output2,Pull-up voltage range: 5V~24V (resistance range: 1kΩ~10kΩ)
3,Output current range:0~50mA
RelayT1/A-T1/CRelay T1 normally open terminalContact drive capacity: AC250V, 3A; DC30V, 5A
Output 1T1/B-T1/CRelay T1 normally closed terminal
RelayT2/A-T2/CRelay T2 normally open terminal
Output 2
485 communication485+ – 485-RS-4851,Standard RS-485 communication terminals, use twisted-pair shielded cables
2,Terminal resistance 120R is selected by jumper 485R. The default is no terminal resistance
communication terminal3,Communication filter capacitor is selected by jumper 485C. The default value is no filter capacitor

Please kindly inform us of the required models for the WK300 Variable Frequency Inverter, and we will promptly provide you with a quotation.

Table 2.3-1 Product model and technical data(three-phase 380V)
ModelPowerOutput currentInput currentMatched motorBrakeDC
rating (kW)(A)(A)(kW)unitreactor
WK300-4T-0.75B/1.5PB0.75GB0.752.53.50.75InbuiltNone
1.5PB1.53.84.61.5
WK300-4T-1.5GB/2.2PB1.5GB1.53.84.61.5
2.2PB2.25.16.32.2
WK300-4T-2.2GB/4.0PB2.2GB2.25.16.32.2
4.0PB4911.54
WK300-4T-4.0GB/5.5PB4.0GB4911.54
5.5PB5.51316.85.5
WK300-4T-5.5GB/7.5PB5.5GB5.51316.85.5
7.5PB7.517227.5
WK300-4T-7.5GB/11PB7.5GB7.517227.5
11PB112532.511
WK300-4T-11GB/15PB11GB112532.511
15PB153241.515
WK300-4T-15GB/18.5PB15GB153241.515
18.5PB18.53749.618.5
WK300-4T-18.5GB/22PB18.5GB18.53749.618.5
22PB22455922
WK300-4T-22GB/30PB22GB22455922
30PB30606530
WK300-4T-30G/37P30G30606530InbuiltInbuilt
37P37758037optionaloptional
WK300-4T-37G/45P37G37758037
45P45919545
WK300-4T-45G/55P45G45919545
55P5511211855
WK300-4T-55G/75P55G5511211855
75P7515015775
WK300-4T-75G/90P75G7515015775
90P9017618090
WK300-4T-90G/110P90G9017618090
110P110210214110
WK300-4T-110G/132P110G110210214110
132P132253256132
WK300-4T-132G/160P-L132G132253240132Externally mounted when neededInbuilt
160P160304287160
ModelPowerOutput currentInput currentMatched motorBrakeDC
rating (kW)(A)(A)(kW)unitreactor
WK300-4T-160G/185P-L160G160304287160Externally mounted when neededInbuilt
185P185326306185
WK300-4T-185G/200P-L185G185326306185
200P200377365200
WK300-4T-200G/220P-L200G200377365200
220P220426410220
WK300-4T-220G/250P-L220G220426410220
250P250465441250
WK300-4T-250G/280P-L250G250465441250
280P280520495280
WK300-4T-280G/315P-L280G280520495280
315P315585565315
WK300-4T-315G/355P-L315G315585565315
355P355650617355
WK300-4T-355G/400P-L355G355650617355
400P400725687400
WK300-4T-400G/450P-L400G400725687400
450P450820782450
WK300-4T-450G/500P-L450G450820790450
500P500860835500
WK300-4T-500G/560P-L500G500860835500
560P560950920560
WK300-4T-560G/630P-L560G560950920560
630P63011001050630
WK300-4T-630G/710P-I630G63011001050630/Standard input reactor
710P71012601198710
WK300-4T-710G/800P-I710G71012601198710
800P80015001426800
Table 2.3-2 Product model and technical data(three-phase 220V)
ModelPowerOutput currentInput currentMatched motorBrakeDC
rating(A)(A)(kW)unitreactor
(kW)
WK300-2T-0.75GB0.7544.80.75InbuiltNone
WK300-2T-1.5GB1.578.81.5
WK300-2T-2.2GB2.29.6122.2
WK300-2T-4.0GB416214
WK300-2T-5.5GB5.520265.5
WK300-2T-7.5GB7.530397.5
WK300-2T-11GB11425511
WK300-2T-15G15556015InbuiltInbuilt
WK300-2T-18.5G18.5707518.5optionaloptional
Table 2.3-3 Product model and technical data( single-phase 220V)
ModelPowerOutput currentInputMatched motorBrakeDC
rating(A)current(kW)unitreactor
(kW)(A)
WK300-2S-0.75GB0.7548.20.75InbuiltNone
WK300-2S-1.5GB1.57141.5
WK300-2S-2.2GB2.29.6232.2
WK300-2S-4.0GB416334
WK300-2S-5.5GB5.520405.5
WK300-2S-7.5GB7.530587.5
WK300-2S-11GB11428411
WK300-2S-15G155511015InbuiltInbuilt
WK300-2S-18.5G18.57014018.5optionaloptional
CE Certification
CE Certification

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