AS570 AC motor soft start control board

AS570 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 thyristor below 1500A, and it is suitable for various load types such as soft start of three-phase AC motors 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. Technical specifications:

1.1. Power supply: 220/380Vac ±15% 50HZ

1.2. Rated working voltage Ue: AC230V, 380V, 660V, 1140V +/-15% 50HZ

1.3. Rated working current Ie: 10~1600A

1.4. Initial starting voltage: 10~99%

1.5. Soft start mode: voltage ramp and limited current start, voltage sudden jump start, constant current start

1.6. Parking method: soft parking, free parking

1.7. Soft start time: 1~200 seconds

1.8. Soft parking time: 0~200 seconds

1.9. Alarm relay contact capacity: 250Vac/10A

1.10. Current transformer: 1A standard transformer signal

1.11, Overcurrent characteristics: 6Ie/8S

1.12, Dielectric Strength: 3500 VRMS

1.13. Starting frequency: the time interval between each starting shall not be less than 5 minutes

1.14. Working environment conditions:

Environment temperature: -20℃~ 60℃

Relative humidity: ≤ 90%RH (no frost)

Indoor installation: no flammable, explosive, corrosive gas, no conductive dust, vibration less than 0.5G

The altitude is lower than 3000 meters, and the capacity level should be lowered appropriately if it exceeds 3000 meters.

1.15. Dimensions: 240X160X50mm Opening size: 225X145mm

1.16, weight: 1KG

2. Performance characteristics:

2.1. Powerful human-computer interaction interface, LCD display with Chinese menu operation, the display is more intuitive and the operation is more convenient;

2.2. Industrial 32-bit microprocessor, SMD chip technology, multiple anti-interference design to ensure the stability and reliability of the industrial environment;

2.3. Abundant starting modes, with voltage ramp, sudden jump and current limiting modes to choose from, and the initial starting voltage and current values of the motor are digitally adjustable;

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

2.5. Phase loss protection: monitor and detect the three-phase phase loss of the incoming and outgoing terminals, and control the load to stop output in real time;

2.6. Silicon breakthrough protection: In the non-starting or stopping state, if there is a SCR breakdown, it will refuse to start and display the fault type parameters, and the alarm relay will output at the same time;

2.7. Overload protection: multiple starting overload protection levels and running overload protection levels, six different inverse time protection curves are set inside;

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

2.9. Motor soft stop: When stopping, to eliminate the impact on the power grid and itself when the motor stops, the soft stop time parameter can be set, or it can be set to free stop;

2.10. It has the function of automatically identifying the phase sequence, and the main circuit power supply can be selected without phase sequence or with phase sequence, which is convenient for debugging and wiring;

2.11 Bypass selection: the bypass output can be closed or opened by setting the bypass selection parameters, and the bypass contactor closure detection function is provided when the bypass is opened;

2.12 It can be remotely controlled by PLC or other equipment, and it has the function of running time query to record the current running time and accumulated running time;

2.13. Dynamic fault record query function, which can continuously record the latest eight historical fault information, so as to find the cause of the fault;

2.14. 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;

2.15. Complete peripheral interfaces: one 4-20mA analog signal output interface (not standard), three relay output interfaces, with flexible operability;

2.16. 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 is broken or the current leakage or the inter-turn disconnection occurs.