269PLUS-100P-120AC Multilin 数字继电器

269PLUS-100P-120AC Multilin 数字继电器

产品描述

通用变频器的选择包括通用变频器的型式选择和容量选择两个方面，选择应遵循：，其主要性能可以确保有效的满足工艺的需要，第二，性价比应该比较理想。

在进行选择通用变频器类型的时候应该从负载特性着手。在风机以及泵类等平衡转矩，在速度较低的时候具有较小的负载转矩，一般应选用普通或者专用功能型的通用变频器。而恒转矩类负载或者静态转速精度要求过高的机械在选择上应该具有转矩控制性能的高功能型的通用变频器，此通用变频器转矩速度较低、较硬的静态机械特性，负载冲击不会为其带来影响，有挖土机的性能。为能够进行调速比较大下进行恒转矩调速，一般要将通用变频器体积予以加大。

而较高的精度要求、较好的动态性能、较快的速度响应的生产机械，比如注塑机、造纸机械或者轧钢机等，要选择直接进行转矩控制或者矢量控制型的通用变频器。

269PLUS-100P-120AC Multilin 数字继电器

Product description

The selection of general frequency converter includes two aspects: type selection and capacity selection of general frequency converter. The selection should follow: its main performance can ensure that the process needs are effectively met. Second, the cost performance should be ideal.

When choosing a general frequency converter type, we should start from the load characteristics. In the balance torque of fans and pumps, there is a small load torque when the speed is low, and general inverters of ordinary or special functional types should be used. The constant torque class load or static speed precision requirements are too high in the selection of machinery should have torque control performance of high-function universal frequency converter, this universal frequency converter torque speed is low, hard static mechanical characteristics, load impact will not affect it, has the performance of excavator. In order to carry out constant torque speed regulation under relatively large speed regulation, it is generally necessary to increase the volume of the general frequency converter.

The production machinery with higher precision requirements, better dynamic performance and faster speed response, such as injection molding machines, papermaking machinery or rolling machines, should choose direct torque control or vector control universal frequency converters.