TC120-C single-phase constant current and constant voltage thyristor trigger board is based on TC120 with RS485 communication function, which can easily set various operating parameters of the trigger
TC120-C single-phase constant current and constant voltage thyristor trigger board is based on TC120 with RS485 communication function, which can easily set various operating parameters of the trigger board through the host computer or PLC, and it can also be remote in real time. Monitor current operating 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. With single-phase full-control bridge rectification and AC trigger mode, it can trigger SCR below 1000A, suitable for resistive loads, inductive loads, capacitive loads, transformer primary side and other loads for voltage and current regulation in various fields of industry Type, widely used in electrolytic plating, charging and discharging, single-phase thyristor power supply, electric heating temperature control and other equipment. This control panel has open-loop or multiple closed-loop control modes, and a variety of given control signal options. The input signal control method directly adopts the button operation on the control panel or external industrial standard input signal control, and supports 0-5Vdc, 0-10Vdc, 0 -10mA, 4-20mA and other input automatic control modes, can also be manually controlled by potentiometers, 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 stabilization accuracy, good 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, emergency stop function. 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. 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. 1.8. 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. 1.9. 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. 1.10. The thyristor drive interface is equipped with double-row LED indicators. 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 location of the error. 1.11, advanced MODBUS field bus communication function, fully isolated control. 1.12, all circuit boards are coated with three anti-paint protection, with excellent insulation, dustproof, moisture-proof, anti-corrosion, anti-aging, corona resistance and other properties. 2. Technical specifications:
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