对地短路故障ETH1
<p><span style="font-family: 宋体, SimSun; font-size: 16px;">故障原因：</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;"><span style="font-family: 宋体, SimSun; color: rgb(0, 0, 0);">1、变频器输出与地短接。</span></span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;"><span style="font-family: 宋体, SimSun; color: rgb(0, 0, 0);">2、电流检测电路出故障。</span></span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;"><span style="font-family: 宋体, SimSun; color: rgb(0, 0, 0);">3、实际电机功率设置和变频器功率相差太大。</span></span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;"><span style="font-family: 宋体, SimSun; color: rgb(0, 0, 0);">解决方法：</span></span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">1、逆变模块损坏，检查驱动线，更换器件。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">2、电机对地短路，请检查电机对地是否短路 ,确认电机的绝缘电阻。</span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;">3、确保输出接线正确，特别不要把输出线接到PE端子上。</span></p><p><br/></p>
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