DS500 Synchronous Motor Excitation Control Board

DS500 Synchronous Motor Excitation Control Board

DS500 synchronous motor excitation control board adopts 32-bit industrial-grade high-performance microprocessor, highly digital military quality design, supports network remote control and on-site control mode, Fuzzy-PID parameter open adjustment, integrated excitation open loop voltage regulation, constant excitation voltage It is integrated with three adjustment methods of constant excitation current. The operating parameters are set by the Chinese operation of the LCD screen. The microcomputer intelligently completes the slip rate detection, de-excitation control, operation display, real-time excitation, fault self-diagnosis and other functions, excitation control The board has: good self-diagnosis function, capable of operating parameters and fault management, online modification and display of various parameters currently running, and reliable operation, advanced technology, complete functions, stable performance, convenient debugging, simple maintenance and other advantages.

The control panel is widely used in synchronous motor driving, such as: mining, metallurgy, fertilizer, chemical industry, irrigation and drainage, cold storage, cement and other industries, as well as driving gas compressors, refrigerators, ball mills, large water pumps, fans and other general mechanical equipment . Suitable for synchronous motor power: 125～15000KW, voltage: 380～10KV motor.

Technical specifications:

* Power supply: 220/380Vac ±15% 50/60HZ

* Main circuit working voltage: 380Vac ±15% 50/60HZ

* Regulating range of input excitation rated voltage: 30～200V

* Regulating range of excitation rated current: 100～1000A

* Phase shift range: 0～178° Adjust output resolution: 1/4000 Stability accuracy: better than ±1%

* Trigger current: ≥ 750mA Trigger capacity: ≤ 3000A one-way SCR

* PID dynamic response time: ≤50mS, overshoot: ≤10%

* Input signal: button adjustment and potentiometer adjustment on the panel

* Three-phase trigger unbalance degree: ≤ 0.3°

* Applicable load: synchronous generator or synchronous motor excitation control

* Alarm relay contact capacity: 250Vac/10A

* Dielectric strength: 3500 VRMS

* Working environment temperature: -20℃~ 60℃ Relative humidity: ≤ 90%RH (no frost)

* Dimensions: 240X160X50mm Opening size: 225X145mm

* Weight: 1KG

Performance characteristics:

* Adopt 32-bit industrial-grade high-speed microprocessor, LCD display Chinese menu operation, fully automatic SMD process manufacturing, stable and reliable performance;

* With digital constant excitation current or constant excitation voltage function, accurate control of the load, over-current, under-current, over-voltage and under-voltage abnormal protection functions;

* Perfect fault detection and alarm function, real-time detection of load status, load current, control signal, feedback signal loss and other parameters;

* Intelligent PID control scheme, open parameters, can be flexibly set to any physical quantity, adapt to different types of loads, and have good dynamic characteristics;

* Press the button to adjust the excitation voltage, the whole line is smooth and stable, and the synchronization signal is input through photoelectric isolation, so that the sampling circuit is protected from the spike pulse interference of the synchronization signal;

* With low-pass de-excitation function, when the motor starts, the control unit forcibly turns on the de-excitation circuit to de-excite the motor;

* Current loop (voltage loop) feedback input signal supports various analog input signals such as transformers, Hall current (voltage) sensors, 0-75mV shunts, 0-5V, etc.;

* It can be remotely controlled by PLC or other equipment, MODBUS field bus communication function, RS485 fully isolated control (optional);

* At the same time, it has the running time query function, which records the current running time and the accumulated running time;

* The control board is designed to prevent the thyristor trigger interface from burning out, and supports input and output multi-function expansion boards;

* 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 error location.