St33 Three Phase Rectifier Thyristor Trigger Board, Scr Firing Card

We are an authorized Supplier of ST33 Three Phase Rectifier Thyristor Trigger Board, SCR Firing Cards in Shenzhen, Guangdong, China.

Working power supply220/380Vac A 15%, 50/60HZ
Main circuit working voltage50i 660Vac A 15%, 50/60HZ
Voltage adjustment range:0 ~ 100%
Current adjustment range:0 ~ 100%
Phase shift range0~178A
Adjust output resolution1/4000
Stability accuracybetter than A 1%
Trigger current:a Y 750mA
Trigger capacitya 5000A one-way thyristor
PID dynamic response time:a 50mS
Overshoot:a 10%
Input signal:DC0-5V, DC0-10V, 0-10mA, 4-20mA, 10K potentiometer adjustment
Three-phase trigger imbalancea 0.3A
Applicable load:Resistive, inductive, capacitive, transformer load and other loads
Alarm relay contact capacity:250Vac/10A
Dielectric strength:3500 VRMS
Ambient (working) temperature:-20A C~ 60A C
Working Relative humidity:a 90% RH (no frost)
Indoor installation requirementsno flammable, no corrosive gas, no conductive dust, and vibration should be less than 0.5G
Dimensions:240X160X50mm
Dimensions between install holes:225X145mm
Weight:1KG
Altitude should be under 3000m, otherwise need to reduce the capacity level.

Features
1.Using 32-bit industrial high-speed microprocessor, LCD screen or touch menu in Chinese, fully automatic SMD
process manufacturing, stable and reliable performance.
2. With digital constant current, constant voltage function, current limiting and voltage limiting function, it can control the loads precisely, and has overcurrent and overvoltage abnormal protection function.
3. Complete fault detection and alarm function, real-time detection of load status, load current, control signal, feedback signal loss and other parameters.
4. Intelligent PID control solution, parameter opening, can be set to any physical quantity flexibly. Great dynamic characteristics, adapts to different loads.
5. Phase loss protection: When the main circuit power supply is out of phase, the alarm prompts, and the load stops in real time to stop output
6. Interface compatibility: support 0-5Vdc, 0-10Vdc, 0-10mA, 4-20mA and other automatic input signals, direct interface with various instruments and PLC, can be manually controlled by potentiometer.
7. Overload protection: After starting, it will judge whether the load is overloaded. When it continuous overload the settled protection time, it stops running and the alarm relay outputs;
8. Soft start: At startup, the output voltage will gradually increase from zero to 100% to eliminate the impact on the grid and itself during load operation. The parameter of the soft start time can be set.
9. Soft shutdown: When stopped, the output voltage will gradually decrease from 100% to zero to eliminate the impact on the grid and itself when the load stops. The parameter of the soft shutdown time can be set.
10. It has the function of automatic phase sequence identification, no phase sequence requirement for the power supply of the control board, no debugging, very convenient wiring;
11. Current loop (voltage loop) feedback input signal supports various analog input signals such as transformer, Hall current (voltage) sensor, 0-75mV shunt, 0-5V, etc.
12. Can be remote controlled by PLC or other equipment, with MODBUS field bus communication function, full isolated control by RS485 (optional);
13. It also has a running time query function to record the current running time and accumulate all the running times;
14. Adopts intrinsically safe design, the control board (regulator) is designed with the function of preventing thyristor trigger interface from burnout protection, and supports input and output multi-function expansion board;
15. The thyristor drive interface has double-row LED indicator, the green light indicates whether the trigger board is faulty, and the red light indicates whether the external control line is correct. The error position can be quickly checked;