
NKTT01-5' 优价
1,干接点的定义 干接点的定义:无源开关;具有闭合和断开的2种状态;2个接点之间没有极性,可以互换; 常见的干接点有: 1、各种开关如:限位开关、行程开关、脚踏开关、开关、温度开关、液位开关等; 2、各种按键; 3、各种传感器的输出,如:动力监控中的传感器:水浸传感器、火灾传感器、玻璃破碎、振动、烟雾和凝结传感器; 4、继电器、干簧管的输出; 有干接点就有湿接点。 湿接点的定义是:有源开关;具有有电和无电的2种状态;2个接点之间有极性,不能反接; 常见的湿接点有: 1、如果把以上的干接点,接上电源,再跟电源的另外一极,作为输出,就是湿接点;工业控制上,常用的湿接点的电压范围是DC0~30V,比较的是DC24V;AC110~220V的输出也可以是湿接点,尽管这样做比较少; 2、把TTL电平输出作为湿接点,也未尝不可;一般情况下,TTL电平需要带缓冲输出的,例如:7407、245、244等,与VCC等构成回路;244、245也可以跟gnd构成回路;才能驱动远方的光耦。 3、NPN三极管的集电极输出和VCC;
【公 司】: 福建鸿飞达自动化科技有限公司
产品价格以电话或者QQ询价为准,发布价格不做参考,图片也一样
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505-4516 505-4516 Output Module (5054516)
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505-4732 505-4732 Output Module (5054732)
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505-6108A 505-6108A Analog Input Module (5056108A)
505-6108B 505-6108B Analog Input Module (5056108B)
505-6202 505-6202 Analog Output Module (5056202)
505-6204 505-6204 Analog Input Module (5056204)
505-6208 505-6208 Analog Output Module (5056208)
505-6208A 505-6208A Analog Output Module (5056208A)
505-6208B 505-6208B Analog Output Module (5056208B)
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505-6516 505-6516 Rack (5056516)
505-6660 505-6660 Power Supply (5056660)
505-6660A 505-6660A Power Supply (5056660A)
505-6660B 505-6660B Power Supply (5056660B)
505-6830 505-6830 Input Output Channel Controller (5056830)
505-6840 505-6840 Controller Module (5056840)
ALLEN-BRADLEY 1326AB-B720E-21-K7 1326ABB720E21K7 SERVO MOTOR QUA
Allen Bradley 70 20AE2P7A0AYSeries A AC Drive 600V 2HP
【主 营】: AB(罗克韦尔)PLC全系列、ABB机器人备件、施耐德140/TSX、西门子6SN/6FC、伺服全套等
【价 格】: 电议
【发布人】: 程先生
【电 话】: 15306977024 13625073704
【所在地】: 福建 - 福州
【坐 机】: 0591-83532940
【Q Q】: 2851617309
【传 真】: 0591-88263940
【邮 箱】: 2851617309@qq.com
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