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64VB412V02

变频器对自身的保护：瞬时过电流、过电压、欠电压、过载、对地短路、控制电路异常,那么对于变频器自身的保护呢,就对过电流、过电压、欠电压等设定了限定值,当变频器在运行的时候,如果超过了限定值,哪怕是时间很短,它都会起保护作用,它的保护作用就是停止输出,就是变频器的输出端没有电压了,这就是对于变频器的保护作用,它的这个保护功能呢,比较灵敏,非常灵敏的,它为了保护这个变频器里面的这个逆变电路、整流电路、因此它非常灵敏,这样呢就容易引起经常的跳闸,大家都知道经常的跳闸对我们的生产是很不好的,所以呢我们必须要采取一些措施,对于这个变频器自身的保护,能够在某一个情况下不跳闸,这个就是我们下面要讲的内容。对系统的保护：这个系统的保护就是我刚刚讲的跟变频器的自身的保护是有关的,变频器是非常的灵敏,它稍微过电流、过电压就会引起我们所谓的跳闸,针对这种情况我们就采取了失速防止、自动再启动、参数保护功能,这些都是对系统的保护功能。这个失速防止和自动再启动就是针对变频器很灵敏的情况下,使它在某些情况下,虽然超过了它的限定值,但是它能够不跳闸,或者说在断电的情况下,在这个控制技术延长瞬间的情况下,它可以再启动,就不会引起整个生产线的停止,这个就是对变频器自身的保护。还有一个参数保护功能：变频器的主要功能,它就是由参数设定和端口电压端口电路来完成的,因此,当我们把参数设定好了之后,如何让这个参数不被其他人乱动,不丢失这个参数,那么这个参数功能也是对整个系统的保护。变频器的显示功能非常强大,它可以显示功能参数及设定值,各种运行数据故障原因代码,操作面板所处状态况和变频运行状态,还可以通过外接指针式电表或数字电压表显示各种运行数据,外接指示灯显示变频器的故障报警信号和各种运行状态信号。变频器它的显示功能是非常强大的,变频器的显示功能是通过操作面板、功能参数设置、外接电表和外接控制电路来完成的。

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64VB412V02

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