Single-phase Digital 3KW(Half-bridge control board)

Electrical specifications of the product

Rated voltage frequency: AC 220V/50Hz

Voltage adaptation range: 100V~260V

Rated power: 3KW (power adjustable range is 20~100%), rated working current: 12~14A

Adaptability to the environment

Temperature: -20°C~50°C

Humidity: ≤95%

Basic performance overview

Voltage and power characteristics: 210~260V constant power output;

Thermal efficiency≥ 95%;

IGBT overheat protection temperature: 85±5°C;

Working frequency: 5~40KHz;

Based on 32-bit DSP all-digital processor, half-bridge series resonance;

Using highly reliable digital phase-locked loop control technology, digital stepless adjustment, the power can be set through the digital display, and can also be adjusted by external potentiometer, and it is also compatible with 0~5VDC or 4~20mA analog PID to control the power output, and the power is 20%~100% adjustable;

It has a fully galvanically isolated soft-start control interface (short-circuit start/disconnect stop) for easy connection with the thermostat, and a 12V/24V input start/stop mode control interface for easy connection with various solid-state relays (there is a voltage input to work, otherwise stop heating, when using this function, the soft-start interface should be empty, and the short-circuit ring needs to be removed)., the control response speed is fast, and the start-up time is <1S;

It has the protection functions of heating coil short circuit and open circuit, 130% overload and no-load instantaneous protection function, and the protection response time ≤2uS;

The coil has wide compatibility and can be compatible with the same model products of other companies;

Strong anti-interference ability, 30 controllers can be controlled to start/stop at the same time on the same heating body without interfering with each other;

With the open application platform, users can automatically read important parameters such as current, frequency, phase difference, temperature and so on with our special digital programming display, and can also set various application parameters as needed, making installation and debugging more simple and convenient

You can set 1~255 days of working time, automatically lock after the timer is completed, you need to enter the password to restart, and you can also set 6 groups of timing on/off according to your needs;

Built-in modbus RTU communication protocol, with 485 interface, can be external contact touch screen, can also easily achieve remote control;

Using industrial-grade components, 100% of them have been tested by high temperature aging, to ensure 24 hours of continuous and reliable work in the industrial environment of 50°C for a long time, and the average trouble-free service life: ≥50000Hrs;

Factory standard configuration: control board radiator and cooling fan integration;

Physical size: length 195mm * width 120mm * height 100mm (including fan)

The advantages of the company's electromagnetic heating plate

The power supply adopts a wide voltage design, with a constant power output of 210V~260V, which is especially suitable for the occasion of large grid voltage fluctuations;

Adopting two original imported IGBT half-bridge series resonant structure, the product quality is more stable, the anti-interference ability is stronger, and the continuous work for a long time does not burn the plate;

The power can be set by the digital display, and can also be adjusted by an external potentiometer, and it is also compatible with 0~5VDC or 4~20mA analog PID to control the power output, so that the heating temperature control is more accurate, and it is more suitable for the production of various heating equipment;

The working time can be set for password locking, which can effectively prevent the problem of difficult collection of project funds, and can also set 6 groups of timed on/off according to the need, which is more intelligent and more convenient to use in areas with peak and valley electricity prices;

It comes with 485 interface, which can be touched externally, and can also be easily controlled and centralized, which is conducive to the secondary development of equipment and the comprehensive management of the factory;

Add 12V/24V voltage control interface, which is convenient for SSR solid state relay control;

The national unified warranty is 1 year, the product is maintained for life, and the whole process of technical guidance and service allows you to have no worries.

System wiring description and schematic diagram

Two indicator lights, one indicator on the board + external DC 12V working indicator, always on when working normally, flashing when not working.

Soft Boot This interface is a soft start/stop control interface, which works when it is short-circuited and stops when it is disconnected (the short-circuit piece of the next socket must be removed when using this interface for control).

AC-L and AC-N are 220V power inputs, and OUT1 and OUT2 are output terminals connected to heating coils.

Coil reference parameters: (Please refer to the comparison table below for details).

Mica winding glass fiber braided high-temperature resistant cable, cross-section national standard 4mm² inductance is 90~110uH, about 18~22m (excluding lead length), the thickness of the insulation cotton is required to be about: tubular coil 15~, flat coil: 10~15mm, quota working current: 12~14A, general working frequency: 10K~20KHZ.25mm

The potentiometer can adjust the power size, which is large clockwise and small vice versa. (Suitable for every product)

When installing, please pay attention to the heat sink is electrified, hands and other conductive objects should never be touched, and the shell must be reliably grounded.

Single phase digital half bridge 3KW electromagnetic heating control board, fully digital DSP technology, with built-in timing function, 485 interface, PID power adjustment, and external potentiometer connection