Frequency converter excitation overload detection system

The utility model discloses a frequency converter excitation overload detection system. Wherein the controller is used for setting parameters and displaying information, and the target frequency converter and the PLC module are in communication connection with the controller. Wherein the target frequency converter is connected with a power supply and a load for supplying power to the target frequency converter, the load is connected with an excitation group, the excitation group is connected with an excitation voltage source, the PLC module is connected with a relay, and the relay is located between the excitation group and the excitation voltage source. The overload self-protection function of the frequency converter can be automatically detected, the structure is simple and reliable, thedetection efficiency is high, and the cost is low. 本实用新型公开了一种变频器励磁过载检测系统，包括用于设定参数、显示信息的控制器以及通信连接在其上的目标变频器和PLC模块，所述目标变频器上连接有为其供电的电源和负载，所述负载上连接有励磁组，所述励磁组上连接有励磁电压源，所述PLC模块上连接有继电器，所述继电器位于励磁组和励磁电压源之间。其能够自动对变频器进行过载自我保护功能检测，结构简单可靠，