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产品名称: 接近开关、PR18-5DN、PR18-5DP
产品型号: PR18-5DN、PR18-5DP
产品展商: 其他品牌
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简单介绍
接近开关、PR18-5DN、PR18-5DP、PR12-4DN、PR12-4DP、PR12-2DN、PR12-2DP、PR18-8DN、PR18-8DP、PR18-5DN、PR18-5DP、PR30-15DN、PR30-15DP、PR30-10DN、PR30-10DP、PR12-4AO、PR12-2AO、接近开关、PR18-5DN、PR18-5DP、PR18-8AO、PR18-5AO
接近开关、PR18-5DN、PR18-5DP
的详细介绍
接近开关、PR18-5DN、PR18-5DP接近开关现货供应
接近开关是一种具有开关量输出的位置传感器,它既有行程开关、微动开关的特性,同时又具有传感性能, 接近开关重复定位精度高、瞬变过程短、输出功率大、急电特性好、工作稳定可靠、使用寿命长,被广泛用于矿山、冶金、电力、煤岩、钢铁、石油、化工等行业。
接近开关说明:
1.接近开关有两线制和三线制之区别,三线制接近开关又分为NPN和PNP型,它们的接线是不同的,见下图
2.两级制接近开关的接线比较简单,接近开关与负载串联后接到电源即可
3.三线制接近开关的接线:红(棕)线接电源正端;蓝线接电源OV端;黄(黑)线为信号,应接负载,而负载的另一端是这样接的:对于NPN型接近开关,应接到电源正端;对于PNP型接近开关,则应接到电源OV端。
4.接近开关的负载可以是信号灯、继电器线圈或可编程控制器PLC的数字量输入???。
5.需要特别注意接到PLC数字输入??榈娜咧平咏氐男问窖≡?。PLC数字量输入??橐话憧煞治嚼啵焕嗟墓彩淙攵宋缭?/strong>OV,电流从输入??榱鞒觯ㄈ毡灸J剑?,此时,一定要选用NPN型接近开关;另一类的公共输入端为电源正端,电流流入输入???,即阱式输入(欧洲模式),此时,一定要选用PNP型接近开关,千万不要选错了
6.两线制接近开关受工作条件的限制,导通时开关本身产生一定压降,截止时又有一定的剩余电流流过,选用时应予考虑。三线制接近开关虽多了一根线,但不受剩余电流之类不利因素的困扰,工作更为可靠。
7.有的厂商将接近开关的“??焙汀俺1铡毙藕磐币觯蛟黾悠渌δ?,此种情况,请按产品说明书具体接线。
麻城麻城**厂家,供应接近开关、接近传感器
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