25A-D043N114 22KW罗克韦尔 AB 变频器 240AVC三相

25A-D043N114 22KW罗克韦尔 AB 变频器 240AVC三相

1、脉冲突跳起动方式
对于静阻力矩较大的负载，必须施加一个短时的大起动力矩，以克服静摩擦力，这就要求起动器可以短时输出90%的额定电压。

2、接触器旁路工作模式
当电动机全速运行后，用旁路接触器来取代已完成任务的软起动器，以降低晶闸管的热耗，提高系统效率。在这种模式下用一台软起动器起动多台电动机.

3、节能运行模式
电动机负荷较轻时，软起动器可自动降压，以此提高电动机功率因数。

4、软停车
在不希望电动机突然停车的场合，可以通过软停车方式来逐步降低电动机端电压。

5、泵停车
对惯性力矩较小的泵，软起动器在起动和停机过程中，实时检测电动机的负载电流，根据泵的负载和速度特性调节输出电压，消除“水锤效应”。

6、动力制动
在惯性力矩大的负载或需要快速停机的场合，可以向电动机输入直流电，以实现快速制动

1, pulse conflict jump start mode
For a load with a large static resistance moment, a short-term large starting torque must be applied to overcome the static friction force, which requires the starter to output 90% of the rated voltage for a short time.

2. Contactor bypass working mode
When the motor is running at full speed, the bypass contactor is used to replace the completed soft starter to reduce the heat consumption of the thyristor and improve the efficiency of the system. In this mode, a single soft starter is used to start multiple motors.

3, energy-saving operation mode
When the motor load is light, the soft starter can automatically reduce the voltage to improve the motor power factor.

4. Soft parking
In the case that the motor does not want to stop suddenly, the motor end voltage can be gradually reduced by soft stopping.

5, pump stop
For pumps with small inertia torque, the soft starter detects the load current of the motor in real time during starting and stopping, and adjusts the output voltage according to the load and speed characteristics of the pump to eliminate the "water hammer effect".

6. Power braking
In the case of large inertia torque load or need to stop quickly, direct current can be input to the motor to achieve fast braking