XYCOM PM9450

XYCOM PM9450

XYCOM PM9450又叫转矩补偿，是为补偿因电动机定子绕组电阻所引起的低速时转矩降低，而把低频率范围f/V增大的方法。 设定为自动时，可使加速时的电压自动提升以补偿起动转矩，使电动机加速顺利进行。 如采用手动补偿时，根据负载特性，尤其是负载的起动特性，通过试验可选出较佳曲线。 对于变转矩负载，如选择不当会出现低速时的输出电压过高，而浪费电能的现象，甚至还会出现电动机带负载起动时电流大，而转速上不去的现象。

电子热过载保护

本功能为保护电动机过热而设置，它是变频器内CPU根据运转电流值和频率计算出电动机的温升，从而进行过热保护。 本功能只适用于“一拖一 ”场合，而在“一拖多”时，则应在各台电动机上加装热继电器。 电子热保护设定值(%)=[电动机额定电流(A)/变频器额定输出电流(A)]×100%。

XYCOM PM9450

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