推荐回答(4个)
今天正好遇到调试SMC数字减压阀:
面板上有三个按钮:向上, S(设置) 和向下
先按"S" 进入设置模式,就会显示"P1 "或"n1",P1是普通输出模式,N1是备用输出,你的只有一个out1,就只有P1,n1可以不管,忽略.
P1 和一个值交替闪烁,这是按向上,向下键,调整这个值大小,这个值就是我们的设定值,例如5 bar 大于这个值有输出.
当设置完成,按"S" 键,完成设置.
如果有两个输出out2,那么就设置P2 或n2,没有就都忽略.
接着按"S" 就会出现"P1H"或"P1L",和一个数值,这是设置上下公差,例如0.5 bar,意思是4.5bar有输出.
如果长按"S" 超过2秒,就会进入功能设置"F0"...."F1",一般来说这个用不到,只要一个"F0"就可以了.忽略不管.
如果看到"HYS" 是迟滞的意思,就是说大于5,0bar,有输出,但如果有漏气,压力降低到4.5bar也有输出.
如果同时按"向上""向下"大约1秒,就会清零,压力清零.
显示的压力是当前管路的压力,把减压阀的上盖旋转拔出,顺逆时针试一下,压力就变化了,调到你需要的压力,把上盖压回去.
进气压力传感器 是用来感知节气门后面到进气门前面这部分进气管的真空度,配合节气门位置传感器来控制喷油阀得出油量 空气流量计 是对流通路径中的空气进行体积计量了.一般瞬时流量的单位为立方米/小时,累积流量的单位为立方米. 原理是在流通路...
1.输出信号先隔离 2.放大(要求不高的话可以一级放大,要是要求高,请采用多级放大),楼主的要求放大10倍就可以了,1~4V,再大就容易失真了。 完了!
要用到模拟量模块和你的要配套才行,然后用plc里的模拟量读取指令如:三菱的TO/FROM指令一样读取后存在寄存器里面,寄存器最好用断电保持记忆的。
数字压力传感器很多都有做,就看你选什么样的品牌和使用要求,有要求就好办
到SMC中国官网去下
1,该产品我没用过。 2,别把压力限制范围混淆成压力测量范围。 3,目前本人所接触过的大品牌压力变送器好像都可以测量负压(这跟测量膜盒的原理结构有关)。 4,你把抽气机当作空压机使用,理论上没问题,但要注意散热问题,不要得不偿失。
外行人多数是通过具体应用,细心阅读使用说明书得到使用知识。在使用中遇到问题随时咨询代理商,甚至代理商会帮助你联系生产厂家技术人员帮助。
如果自己想研究探寻技术和原理则需要读书学习。你提出的问题好像是在变频器驱动水泵用途。因为品牌不同调节方面设置各不相同。即使不懂可以现场试验一下很快就可以掌握设置方法。本人也是通过设计无水塔变频器供水系统学会使用数字化压力传感器使用方法。
SMC气源的压力开关,有两种模式,就是高于P1 ,低于P1,有输出,在P1 和P2之间,就是高于P1,有输出,或者低于P2 有输出,
你多试试看
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