TC300-C three-phase thyristor trigger board with RS485 communication

The TC300-C three-phase digital thyristor trigger board is based on the TC300 with the RS485 communication function, which can easily set various operating parameters of the trigger board through the host computer or PLC, and it can also remotely monitor the current operation in real time. Status, MODBUS field bus communication function, fully isolated control. Integrate three adjustment methods: open-loop voltage regulation, closed-loop constant voltage and constant current, control the thyristor to achieve constant voltage current limit or constant current limit voltage, function parameter setting adopts button operation, fault alarm, interface parameter adopts LED digital Tube display, set parameters are 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. It has three-phase full-controlled bridge rectification, three-phase half-controlled bridge rectification, and double-reverse star rectifier trigger modes, which can trigger SCRs below 5000A, and are suitable for resistive loads, inductive loads, and Various load types such as capacitive load are widely used in equipment such as DC motor speed regulation, electrolytic plating, charging and discharging, three-phase thyristor power supply, electric heating temperature control and other equipment.

The three-phase digital thyristor trigger board has open-loop or multiple closed-loop control modes, a variety of given control signal options, and supports 0-5Vdc, 0-10Vdc, 0-10mA, 4-20mA and other input automatic control modes. Available potentiometer (10K 2W) manual control, 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, with high voltage regulation accuracy, reliability and stability .

This control panel has strong anti-interference ability, adopts unique anti-interference measures, runs normally in harsh interference environment, all outputs adopt isolation technology, has a variety of protection functions, is versatile, has a wide range of applications, and has complete fault and alarm detection and protection Function, with maximum output limit, soft start, soft close.

1. Performance characteristics:

1.1. High-performance microprocessor. The components are designed and manufactured with high-stability imported components, and are manufactured by fully automatic SMD process, with stable and reliable performance.

1.2. With digital constant current and voltage function and current and voltage limiting function, intelligent PID adjustment mode, LED display window real-time display of various operating states.

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

1.4. Interface compatibility: Support 0-5Vdc, 0-10Vdc, 0-10mA, 4-20mA and other input automatic control modes. It can also be controlled manually by potentiometer or panel buttons, and can be used with various control instruments and microcomputers at home and abroad. Signal direct interface.

1.5. Real-time protection: When the power supply has a phase loss, it will give an alarm and the controller will stop its output; load over-current and over-voltage protection will give an alarm and the controller will stop its output.

1.6. 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.

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

1.8. It has the function of automatically identifying the phase sequence, and there is no phase sequence requirement for the power supply of the control panel, no external synchronization signal is required, debugging is not required, and the wiring is convenient.

1.9. Anti-SCR trigger interface burnout protection design; advanced MODBUS field bus communication function, fully isolated control.

2. Technical specifications: