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高压电机控制PFC套件与电机、编码器的连接问题

Part Number: 型号是:High Voltage Motor Control and PFC Developers Kit (v2.1)TMDSHVMTRPFCKIT 


请问各位老师,

永磁同步电机的地线(机壳线)和编码器的屏蔽线应该连在高压电机控制PFC套件驱动板的什么地方?如果不连的话由于干扰的影响,编码器信号总是有问题。