7.5KW Variable Frequency Drive for Pump

SCK300 series is a high performance inverter designed for industrial automation, which integrates multi-function and high efficiency and energy saving, and is suitable for the drive control of a variety of industrial equipment.

Core functions and advantages

Advanced vector control technology: high precision speed regulation and stable operation, excellent dynamic response.

High efficiency and energy saving: Optimize motor operation efficiency and significantly reduce energy consumption.

Wide compatibility: Support complex working conditions of fans, pumps, conveyor belts, crushers and other equipment.

Application scenario

Flexible application in the following areas:

Fluid control (fan, pump load)

Material transfer (conveyor belt, elevator)

Heavy machinery (Crusher, mixer)

Expansion and upgrading

Seamless upgrade to the SCK350: Improve performance and expand functional modules by replacing the control board.

Adaptation of special equipment such as cranes: expansion cards are supported after upgrading to meet the requirements of professional scenarios such as torque control and multi-motor synchronization.

With modular design and technology upgrades, the SCK series can be adapted to diverse industrial automation needs, from basic to advanced.

Product Parameter (Specification)

Product Feature

●I/O features

◆Input voltage range: 220V/380V/660V±15%

◆Input frequency range: 47 ~ 63Hz

◆Output voltage range: 0 ~ rated input voltage

Output frequency range: 0 ~ 400Hz

●Peripheral interface features

◆Programmable digital input: 8 input

◆Programmable analog input: AI1:0 ~ 10V input, AI2:0 ~ 10V or 0 ~ 20mA input

◆Open collector output: 1 output

◆Relay output: 2 outputs

◆Analog output: 2 outputs, 0/4 ~ 20mA or 0 ~ 10V respectively

●Technical performance characteristics

◆Control mode: no PG vector control, V/F control, torque control.

◆Overload capacity: 150% rated current 60s; 180% rated current 10s

◆Starting torque: no PG vector control: 0.5Hz/150% (SVC)

◆Speed ratio: no PG vector control: 1:100

●Functional Features

◆Frequency setting mode: digital setting, analog setting, serial communication setting, multi-speed, PID setting, etc.

◆PID control function

◆Multi-speed control function: 16 speed control

◆Swing frequency control function

◆Instantaneous power failure without stopping function

◆QUICK/JOG key function: multi-function shortcut key freely defined by users

◆Automatic voltage adjustment function: When the power grid voltage changes, it can automatically keep the output voltage constant

◆Provide up to 25 kinds of fault protection functions: over current, over voltage, under voltage, over temperature, phase loss, overload and other protection functions

Product Application

Products can be used in metallurgy and chemical industry, compressors, cranes, municipal engineering occasions.

The application of frequency converter in the field of fans not only greatly reduces energy consumption, but also improves the system accuracy and automation level through intelligent control. WCE's SCK300 series, with its high compatibility and energy saving algorithms, can cover the diverse needs of small ventilators to large industrial fans, helping companies achieve green and efficient production.

Field irrigation

In agricultural irrigation, VFD for constant pressure water supply is almost standard. First of all, in the process of starting the pump, the VFD can gradually increase its operating frequency, so that the pump can run slowly, so that the water does not cause too much impact on the pipeline. The VFD can then be used in conjunction with a remote pressure gauge or pressure sensor to equalize the pressure in our pipes. Finally, the VFD can control the pressure protection pipeline, but also through its own overload, underload, overpressure, underpressure protection to reduce the damage of the pump.

Two display modes are available:

1.LCD display: Come with Chinese and English display, you can also customize Russian, Portuguese, Spanish, Persian and other languages.

2.LED display: traditional digital tube display, double line display, observe two sets of data at the same time.

VFD adopts wide and large-scale structural design, integrates large-size cooling components, and has high load continuous operation capability and high efficiency utilization rate. By strengthening the cooling system and selection of high-temperature resistant components, it can stably adapt to high temperature and harsh working conditions such as tropical.

Various types of input and output modes can be customized:

1.3P 380V input to 3P 380V output.

2. 3P220V input to 3P220V output.

3. 3P660V input to 3P660V output.

4. 1P220V input to 3P 380V output.

5. 1P220V input to 3P220V output.

With speed tracking function, can better double start.

It comes with MODBUS RTU communication, and can also implement MODBUS TCP, PRPFIBUS and PROFINET by adding expansion cards.

VFD wiring diagram.