File talk:SCR firing board ST20.jpg
 | This file was nominated for deletion on 17 July 2019 but was kept. If you are thinking about re-nominating it for deletion, please read that discussion first. |
ST30 SCR firing control board | 3 phase thyristor triggering card[edit]
Working power supply 380Vac ±15%, 50/60HZ Main circuit working voltage 50～660Vac ±15%, 50/60HZ Voltage adjustment range: 0 ~ 100% Current adjustment range: 0 ~ 100% Phase shift range 0~178° Adjust output resolution 1/4000 Stability accuracy better than ±1% Trigger current: ≥ 600mA Trigger capacity ≤ 1000A one-way thyristor PID dynamic response time: ≤ 50mS Overshoot: ≤ 10% Input signal: DC0-5V, DC0-10V, 0-10mA, 4-20mA, 10K potentiometer adjustment Three-phase trigger imbalance ≤ 0.3° Applicable load: Resistive, inductive, capacitive, transformer load and other loads Alarm relay contact capacity: 250Vac/10A Dielectric strength: 3500 VRMS Ambient (working) temperature: -20°C~ 60°C Working Relative humidity: ≤ 90% RH (no frost) Indoor installation requirements no flammable, no explosive, no corrosive gas, no conductive dust, and vibration should be less than 0.5G Dimensions: 190X130X38mm Dimensions between install holes: 178X118mm Weight: 1KG Altitude should be under 3000m, otherwise need to reduce the capacity level.
Application
Features： 1. Using 32-bit industrial high-speed microprocessor, LED digital tube menu for operation, 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. It 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 is stopped 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 soft start time parameter 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 soft shutdown time parameter 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. 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; 13. All output ports and digital switch input interface are electronic isolated, it is of better anti-electromagnetic interference protection. — Preceding unsigned comment added by Yolynn (talk • contribs) 07:13, 7 November 2018 (UTC)
