TC690 twelve-pulse three-phase fully controlled rectifier trigger board

TC690 twelve-pulse three-phase rectifier thyristor trigger board adopts 32-bit industrial-grade high-performance microprocessor, highly digital military quality design, supports network remote control and on-site control, Fuzzy-PID parameter open adjustment, integrated open loop adjustment The three adjustment methods of pressure, closed-loop constant pressure and constant current are integrated, and the thyristor is controlled to achieve constant voltage limiting or constant current limiting. The fault alarm and interface parameters are displayed in the Chinese menu on the LCD screen, and the set parameters are automatically stored. The control board has functions such as phase loss protection, power-on soft start, soft shutdown, manual current sharing, constant current output, constant voltage output, overvoltage protection, overcurrent protection, short circuit protection, and working status indication. With twelve-pulse three-phase fully-controlled bridge rectifier or double-reverse star-shaped twelve-pulse rectifier trigger mode with balanced reactor, it can trigger thyristors below 5000A, suitable for the resistance of voltage and current adjustment in various fields of industry Various load types such as sexual load, inductive load, transformer primary side, etc., are widely used in electrolytic plating, three-phase thyristor power supply and other equipment.

The twelve-pulse three-phase 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 potentiometers can also be used (10K 2W) and manual control through the panel buttons, flexible and convenient, all parameters are digital, no temperature drift changes, improve the adjustment accuracy and power utilization efficiency, reduce the pollution of the power supply, have high voltage regulation accuracy, reliable stability good. 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. Twelve-pulse three-phase output control, the components adopt high-stability imported components, and are manufactured by fully automatic SMD technology, with stable and reliable performance.

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 LCD screen 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.

1.13. The control board has a protection design against the burn-out of the SCR trigger interface, and supports input and output multi-function expansion boards.

1.14. Advanced MODBUS field bus communication function, RS485 fully isolated control (optional).

1.15. Remote control or on-site control mode, with communication control function between control boards at the same time, to realize one-to-many synchronous operation control (optional).

2. Technical specifications: