描述
为了消除变频器对dcs信号的干扰,我们采取了如下措施,将接地线加粗并将接地点尽量靠近变频器;同时,将变频器送dcs的信号线在变频器出线侧穿钢管敷设,并将钢管可靠接地。通过以上措施,dcs出现oop报警的频率明显降低,但仍未能彻底消除变频器干扰。会不会是变频器故障呢?为此我们更换了变频器,干扰信号马上消除。就当我们以为彻底解决问题的时候,该故障又在一个月后出现
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LEITZ PL APO 100/1.32-0.6 OEL MICROSCOPE OBJECTIVE 100x
PE PERKIN ELMER MBA 2000 UV/VIS SPECTROMETER- POWERS UP
NSK YS2020FN001 MOTOR & NSK EM0408C13-05 DRIVER
ACTIVATIONAL SYSTEMS PIPETTE PULLER PP-3200
LEICA PL FLUOTAR 100x/0.80 MICROSCOPE OBJECTIVE LENS
HEIDENHAIN MT 12B LENGTH GAUGES,VRZ 720 XY AXIS DISPLAY