AS580 motor soft start control board

AS580 motor soft start trigger board adopts 32-bit high-performance microprocessor, highly digital military quality design, dedicated to three-phase AC motor soft start occasions, with bypass output control. Function parameter setting adopts key operation, fault alarm, interface parameter adopts LCD liquid crystal screen Chinese display, setting parameter is automatically stored. The soft start mode is voltage ramp, voltage sudden jump and current limit soft start, so that the motor can achieve a smooth start under any working conditions, protect the drag system, reduce the impact of the starting current on the power grid, and ensure the smooth deceleration and soft stop of the motor , It effectively solves the parking surge problem of the inertial system, eliminates the feedback impact of the drag system, and can adjust various parameters in the starting process according to the characteristics of the motor load, such as overcurrent value, starting time, control panel belt Power-on soft start, soft stop, over-current protection, working status indication. With thyristor anti-parallel AC trigger mode, it can trigger SCR below 1000A, and it is suitable for various load types such as three-phase AC motor soft start in various fields of industry.

By controlling the starting voltage of the motor, excessive peak values of starting torque and starting current are avoided. On the one hand, the working machine can be protected from excessive acceleration torque stress during the start of the AC motor, and on the other hand, the power supply system can be prevented from being impacted by excessive starting current, which greatly reduces the mechanical stress on the conveyed object. , Reduce the wear of working machinery and transmission parts, so as to reduce maintenance, ensure work safety and extend the service life of equipment.

The soft-start thyristor trigger board has good reliability and stability, strong anti-interference ability, unique anti-interference measures, normal operation in harsh interference environment, complete self-diagnosis and motor operation protection functions of the soft-start board, power failure protection, line protection , Overvoltage protection, overload protection, phase sequence protection, phase failure protection, etc. Therefore, all kinds of interference and fault signals from external or internal production will make the performance of the soft start board safer and more reliable because of the above protection functions. All outputs adopt isolation technology, which has a wide range of applications and has complete fault and alarm detection and Protection function, all parameters are digital, no temperature drift changes, improve the regulation accuracy and power utilization efficiency.

Main application of soft start trigger board:

a. In the field of fan use: it can realize the smooth start of the motor, reduce the mechanical impact and belt wear caused by other starting methods, thereby extending the service life of the equipment and ensuring the safe operation of the equipment.

b. In the field of water pump use: the soft stop function can eliminate the water hammer effect caused by high water pressure when the pump is stopped.

c. In the application field of conveying machinery: smooth start of the motor can be realized, so that product shifting or material shaking off due to jitter can be avoided during the conveying.

1. Performance characteristics:

1.1. Adopt 32-bit high-performance microprocessor, the components are imported with high stability, and are manufactured by fully automatic SMD process, with stable and reliable performance.

1.2. Intelligent PID current-limiting control scheme, open parameters, adapt to different types of loads, high control accuracy, and good dynamic characteristics.

1.3. Phase loss protection: When there is a phase loss in the main circuit power supply, it gives an alarm and prompts the load to stop output in real time.

1.4. The soft start mode of the motor is voltage ramp, sudden jump and current limit mode, and the initial start voltage value of the motor is digitally adjustable.

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

1.6. Intrinsically safe product design.

1.7. Motor soft start: When starting, use different soft start methods to eliminate the impact of the motor on the grid and itself during the initial operation of the motor. The soft start time parameter can be set.

1.8. Motor soft stop: When stopping, in order to eliminate the impact on the power grid and itself when the motor stops, the soft stop time parameter can be set.

1.9. It has the function of automatically identifying the phase sequence. There is no phase sequence requirement for the power supply of the control panel, no external synchronization signal is needed, debugging is free, and the wiring is convenient.

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

1.12, the control board has the function of detecting the unbalance of the three-phase current of the motor, and the motor will automatically stop when the winding phase or leakage or inter-turn disconnection occurs.