TC330 three-phase half-controlled rectifier thyristor trigger board

The TC330 three-phase half-controlled rectifier thyristor trigger board is a highly digital military quality design, Fuzzy-PID parameter open adjustment, integrating open loop voltage regulation, closed loop constant voltage and constant current three adjustment methods in one, control thyristor realization Constant voltage limit current or constant current limit voltage, function parameter setting adopts button operation, fault alarm, interface parameter adopts LED digital tube display, setting parameter is automatically stored. The control board is equipped with functions such as automatic phase identification, phase loss protection, power-on soft start, slow shutdown, constant current output, constant voltage output, overvoltage protection, overcurrent protection, and working status indication. With three-phase half-controlled bridge rectification and AC trigger mode, it can trigger the SCR below 1000A, and it is suitable for various loads such as resistive load, inductive load, capacitive load, and transformer primary side of voltage and current adjustment in various fields of industry. Type, widely used in electrolytic plating, charging and discharging, three-phase thyristor power supply, electric heating temperature control and other equipment.

The three-phase digital rectifier thyristor trigger board has a variety of given control signal options, supports 0-5Vdc, 0-10Vdc, 0-10mA, 4-20mA and other analog input automatic control modes, and can also be used with a potentiometer (10K 2W ) And manual control through the panel buttons, flexible and convenient, all parameters are digital, no temperature drift change, improve the adjustment accuracy and power utilization efficiency, reduce the pollution of the power supply, with high voltage regulation accuracy, reliability and stability. At the same time, the control board has strong anti-interference ability, adopts unique anti-interference measures, runs normally in harsh interference environment, and uses isolation technology for all outputs, has multiple protection functions, and has a wide range of applications.

1. Performance characteristics:

1.1. High-performance microprocessor, the components adopt high-stability imported components, manufactured by fully automatic SMD process, and the performance is stable and reliable.

1.2. With digital constant current and constant voltage functions and current and voltage limiting functions, it can accurately control the load, protect against abnormal over-current, over-voltage, and over-temperature and emergency stop functions.

1.3. The double-row LED display window displays various operating states in real time, and the input keyboard has an automatic lock function to prevent misoperation.

1.4. Intelligent PID control scheme, open parameters, can be flexibly set to any physical quantity, adapt to different types of loads, high control accuracy, and good dynamic characteristics.

1.5. Perfect fault detection and alarm function, real-time detection of load current, load voltage, control signal, feedback signal loss and other parameters.

1.6. Interface compatibility: Support 0-5Vdc, 0-10Vdc, 0-10mA, 4-20mA and other input automatic control modes, and directly interface with various instruments and PLC signals; it can also be manually controlled by potentiometer or panel buttons.

1.7. Phase loss protection: When the main circuit power supply has a phase loss, it will give an alarm and prompt the load to stop output in real time.

1.8. Soft start: When starting, the output voltage will gradually increase from zero to 100% to eliminate the impact on the grid and load. The soft start time parameter can be set.

1.9. Slow shutdown: When shutting down, the output voltage will gradually decrease from 100% to zero to eliminate the impact on the grid and the load. The slow shutdown time parameter can be set.

1.10. With the function of automatically identifying phase sequence, there is no phase sequence requirement for the power supply of the control panel, no external synchronization signal is required, debugging is free, and the wiring is convenient.

1.11, the current loop (voltage loop) feedback input signal supports various analog input signals such as transformers, Hall current (voltage) sensors, 0-75mV shunts, and 0-5V.

1.12, the SCR drive interface is equipped with double-row LED lights, the green light indicates whether the trigger board is faulty, and the red light indicates whether the external control line is correct. You can quickly check the error location.

2. Technical specifications: