GD350-19系列开环运行正常，闭环运行不起来怎么排查

<p><span style="font-family: 隶书, SimLi; font-size: 18px;">排查硬件：<span style="font-family: 隶书, SimLi;"><br/></span></span></p><p style=";line-height:150%;margin-top:0;margin-bottom:0;text-indent:0in;text-align:left;direction:ltr;unicode-bidi: embed"><span style="color: black; font-family: 隶书, SimLi; font-size: 18px;">1、编码器接线是否正确（电源有正负之分，ABZ相按图纸接线）。</span></p><p><span style="font-family: 隶书, SimLi; font-size: 18px;">2、<span style="font-size: 18px; font-family: 隶书;">电机与编码器连接处固定不紧，打滑，电机转编码器不转或转得慢。</span></span></p><p><span style="font-family: 隶书, SimLi; font-size: 18px;"></span></p><p style=";line-height:150%;margin-top:0;margin-bottom:0;text-indent:0in;text-align:left;direction:ltr;unicode-bidi: embed"><span style="font-family: 隶书; color: black; font-size: 18px;">3.编码器自身故障，更换编码器，干扰导致，增加磁环。</span></p><p><span style="font-family: 隶书, SimLi; font-size: 18px;"></span></p><p style=";line-height:150%;margin-top:0;margin-bottom:0;text-indent:0in;text-align:left;direction:ltr;unicode-bidi: embed"><span style="font-family: 隶书; color: black; font-size: 18px;">4.编码器卡类型与编码器类型不一致。</span></p><p><span style="font-family: 隶书, SimLi; font-size: 18px;">检查参数：</span></p><p style=";line-height:150%;margin-top:0;margin-bottom:0;text-indent:0in;text-align:left;direction:ltr;unicode-bidi: embed"><span style="font-family: 隶书; color: black; font-size: 18px;">1.P20.01编码器脉冲数。</span></p><p><span style="font-family: 隶书; font-size: 18px;">2.P20.02编码器方向</span></p>