初始电压/限流功能——设定启动曲线的开始电压水平以及停止曲线的终止电压水平
The initial voltage / current limiting function sets the starting voltage level of the start curve and the termination voltage level of the stop curve
初始电压说明：30%-70%全电压范围内可调节5级
Initial voltage Description: the 30%-70% can be regulated 5 level in the full voltage range
限流功能说明：这种起动方式是在电动机起动的初始阶段起动电流逐渐增加，当电流达到预先所设定的值后保持恒定，直至起动完毕。起动过程中，电流上升变化的速率是可以根据电动机负载调整设定。电流上升速率大，则起动转矩大，起动时间短。该起动方式是应用最多的起动方式，尤其适用于风机、泵类负载的起动。
Current limiting function: this starting mode is that the starting current in the initial stage of the motor starts to increase gradually and keeps constant until the current reaches the preset value until the start is finished. In the starting process, the rate of change of the current rise can be adjusted according to the motor load. When the current rise rate is large, the starting torque is large and the starting time is short. The starting mode is the most widely used starting mode, especially suitable for the starting of fan and pump load.
在PSS系列的软启动器中实现限流功能，需要外加附件电流互感器T2（变比可根据软启动型号选择）。在1.5—4倍的电流互感器变比范围内11可调。为了避免较大电流对电网的污染，常在1。5—2倍之间选择，初始电压总是固定在40%的位置。
In the soft starter of PSS series, the current limiting function is needed, and the additional current transformer T2 is needed (the ratio can be chosen according to the soft start type). Within 1.5 to 4 times of the current transformer ratio, 11 adjustable. In order to avoid the pollution of the larger current to the grid, often in 1. Between 5 and 2 times, the initial voltage is always fixed at 40%.
限流功能仅对启动有效。
The current limiting function is only effective for starting.
