伺服点动时报Er19-4失控飞车故障有哪些原因？

<p><span style=";font-family:宋体;font-size:14px"><span style="font-family:Calibri">1</span><span style="font-family:宋体">、电机码是否设置正确；</span><span style="font-family:Calibri">2</span><span style="font-family:宋体">、电机动力线相序是否正确；</span><span style="font-family:Calibri">3</span><span style="font-family:宋体">、电机编码器线缆是否连接正常；</span><span style="font-family:Calibri">4</span><span style="font-family:宋体">、负载惯量比是否设置合适</span></span></p><p><br/></p>