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TMS320F28034: 设备负载无法启动,显示电流很大

Part Number: TMS320F28034

控制方式:异步电机,vf控制模式,通过28034输出是pwm控制igbt管
现象:轻载可以转动重载的时候启动不了,外接电流钳显示电流很大

想问下这种情况怎么解决?