SWMV Series High Voltage Solid State Soft Starter

Product Information

SWMV series high-voltage solid-state soft starting device is a new type of intelligent motor starting device, suitable for squirrel-cage asynchronous and synchronous motors. It is a motor terminal control device that integrates starting, displaying, protecting and data collecting in yui. Users can realize more complex control functions with fewer components. The high-voltage soft starter controls the input voltage by controlling the conduction angle of the thyristor to change the voltage value of the motor stator terminal, that is, to control the starting torque and starting current of the motor, so as to realize the soft start control of the motor. The high-voltage soft start can be smoothly accelerated according to the set starting parameters, thereby reducing the electrical and mechanical impact on the power grid, motors and equipment. When the motor reaches the rated speed, the bypass contactor is automatically turned on. The high-voltage soft starter continues to monitor the motor after starting and provides various fault protections.

Product Features

■ A variety of starting methods: inching, torque starting, current limiting starting, torque voltage oblique starting sudden jump starting, according to different loads can select the corresponding starting parameters to achieve the best starting effect, making the motor starting more accurate, Smooth.

■ Starting control: The whole machine is equipped with local, remote (external dry contact), PLC, communication (485 interface, Modbus) start-stop control functions.

■ Soft start/direct start: The whole machine is designed with the conversion function of "soft start/direct start", and the built-in bypass contactor has the capacity of direct start to ensure the continuity of production.

The protection of thyristor: the resistance-capacitance network absorbs the harmonics of the power grid and realizes the voltage-equalizing of the silicon controlled rectifier in series, which ensures the safety of the silicon controlled rectifier device in series at high voltage.

Strong anti-interference: the use of signal multi-stage processing and isolation technology, with high anti-interference digital trigger and optical fiber isolation technology, making the device's high and low voltage to achieve reliable isolation.

Modular design: high-voltage power thyristor, modular structure, modular design, easy to install the whole machine maintenance.

■ High reliability: Using solid high-voltage high-power components, small size, low heat, fast response, good starting consistency, less maintenance, and BOD. Self-triggering protection function, reliable protection of solid-state high-voltage high-power components.

Provide overcurrent, overload, undervoltage, lack of phase and other protection functions, comprehensive protection of the motor start-stop and running state. The specially designed electronic overload protection function of power-down memory is not affected by power-down and can replace the protection function of thermal relay.

■ Diversified in and out of the line mode: according to the user's on-site requirements, you can choose the cable installation mode of lower in and lower out, upper in and lower out, side in and lower out, side in and side out.

■ Communication interface (optional function):RS-485 communication interface, embedded standard MODBUS protocol, convenient configuration connection. It can communicate with upper computer or centralized control center.

■Friendly man-machine interface: LCD panel, full Chinese display, make programming and parameter adjustment more convenient, monitor screen more intuitive, improve work efficiency. Optional touch screen.

■ High safety: electrical isolation between high and low voltage, using optical isolation and magnetic isolation technology, with low voltage (380V) motor pre-commissioning function. Standard high-voltage cabinet with five prevention functions shall be adopted.

■ Practicability: It can realize the start-stop function of a soft starter to control and drag multiple motors. Using digital panel operation display, rich interface, intuitive use, easy to operate. With a standard digital communication interface, it can remotely monitor, operate the soft starter and the daily maintenance of the motor is small.

■ Fault memory: 15 faults are recorded, so that users can find the cause of the latest fault.

■ Analog signal output (optional function): The whole machine can provide standard 4 ~ 20mA signal output.

■ Advanced and perfect start-stop function: Setting the starting current (1.5~6.0le) according to the load condition can effectively reduce the starting current and mechanical impact, reduce the power distribution capacity and avoid capacity increase investment. The starting torque can be controlled to realize linear and smooth starting of the motor, reduce mechanical wear, and improve the service life of transmission equipment. Smooth load acceleration can reduce mechanical shock and prevent production accidents or product damage. Provide pulse sudden start function, and adopt soft stop function for heavy load occasions with large starting static friction, which can make the load decelerate smoothly and eliminate the water hammer effect of pump load. Full digital control, start and stop more smooth, more stable, high reliability, competent in the industrial field of heavy duty occasions.

Technical features

■ Maintenance-free: SCR is a contactless electronic device, which is different from other types of products that require frequent maintenance of liquids and components, etc., to change the mechanical life into the service life of electronic components, and to operate continuously for several years without downtime for maintenance.

■ Easy to install and use: SWMV is a complete motor starting control and protection system. When installing, it can be put into operation by connecting the power line and the motor line. Before adding high voltage, it is allowed to use low voltage for electrical testing of the entire system.

■ Standby features: The device is equipped with a vacuum contactor that can directly start the motor. If the SWMV fails, the vacuum contactor can be used to directly start the motor to ensure the continuity of production. The high-voltage thyristor is the main circuit component, and has a voltage protection and over-voltage protection system. The SWMV is equipped with an electromagnetic locking device to prevent accidental entry into the high-voltage device when it is charged. The advanced optical fiber transmission technology realizes the isolation between the trigger detection of the high voltage thyristor and the low voltage control circuit. The 32-bit ARM core microcontroller is used to execute the central control, which is real-time and efficient, intuitive display, high reliability and good stability. Chinese and English LCD touch screen display system, user-friendly operation interface. With RS485 communication interface, it can communicate with upper computer or centralized control center. All circuit boards undergo rigorous aging tests.