My newbie，First participation in the grinding machine project to the track grinding repair。Participate in debugging with our manager、wiring。During the period, the customer requires us to zoom in using the sensor line，During the heat shrinking process，Sensor's line has melted trend，Stop heat shrinkage。Various worried sensor line issues。At that time, the cylinder could not move.，Never power。We think about buying a switching power supply to the sensor to test it.。Later, I found that I didn't respond.，We sweat。Again check the line discovery sensor is three-wire system and non-door，need24vThe same effects with the signal，So we move the sensor to the place where the cylinder position is detected.，Energize again，OKIn。
Summarize our reasons afterwards，For limit switch second 巴慕达台灯售后服务 line、Three-line understanding is not transparent，The foundation is not strong。
For my rookie，Let me know Fundamental Real meaning。Wan change the principle。