罗克韦尔1746-HSTP1

罗克韦尔1746-HSTP1

使用大于额定电压值的直流电源电压驱动电机?

正常来说这不是问题，只要电机在所设定的速度和电流极限值内运行。因为电机速度与电机线电压成正比，因此选择某种电源电压不会引起过速，但可能发生驱动器等故障。

此外，保证电机符合驱动器小电感系数要求，而且还要确保所设定的电流极限值小于或等于电机的额定电流。

事实上，如果你能在你设计的装置中让电机跑地比较慢的话 ( 低于额定电压 ) ，这是很好的。

以较低的电压 ( 因此比较低的速度 ) 运行会使得电刷运转反弹较少，而且电刷 / 换向器磨损较小，比较低的电流消耗和比较长的电机寿命。

另一方面，如果电机大小和性能的要求需要额外的转矩及速度，过度驱动电机也是可以的，但会牺牲产品的使用寿命。

17、如何为应用选择适当的供电电源?

推荐选择电源电压值比所需的电压高10%-50% 。此百分比因Kt，Ke，以及系统内的电压降而不同。驱动器的电流值应该足够传送应用所需的能量。记住驱动器的输出电压值与供电电压不同，因此驱动器输出电流也与输入电流不相同。为确定合适的供电电流，需要计算此应用所有的功率需求，再增加5% 。按 I=P/V公式计算即可得到所需电流值。

18、对于伺服驱动器可以选择哪种工作方式?

不同的模式并不全部存在于所有型号的驱动器中。

1746-HSTP1 

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1746-HSTP1