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GF4C旋转限位开关（黄盒子）
1、概述
The rotary limit switch is ud to control the movement of industrial machinery. It operates
旋转限位开关被用来控制工业机械的运转，
as an auxiliary controller of electrical motors through a power interface, such as a contactor or
通过电源接口连接作为电动机的一个辅助控制器，好比一个开关或者PLC。
PLC . Suitable for heavy duty, its shaft is connected to the motor and, after a t number of
刘强东自述
revolutions ,the cams operate the switches, thus starting the predetermined movement . A worm 关于计算机的论文
适用于重载，它的轴连接到电机，并且通过设置转数控制开关，实现预设的操作。一个涡轮
gear and a helical toothed gear combined with one or more pairs of straight toothed gears are ud for the transmission of the movement from the input shaft to the output shaft.
和一个螺旋形的齿轮连接一个或者多个直齿，用作主动轴和从动轴间动作的传动装置。
Revolution ratios, ranging from 1:1 to 1:969, result from the u of different combinations of
gear wheels between the input shaft and the output shaft, which is connected to the cams operating the switches. Transmission and gear driving shafts are made of stainless steel to
按照主动轴和从动轴之间，连接到凸轮控制的开光的齿轮啮合程度的不同，转速比范围从1:1到1:969。传动轴和齿轮轴由不锈钢构成，防止氧化和磨损。
prevent oxidation and wear. The gear wheels and the driving bushes are made of lf-lubricating thermoplastic material, suitably chon to reduce the wear to a minimum and to maintain the accuracy of the couplings over time. Sintered bronze bushes are moulded into the ba of the 齿轮和驱动轴由具备自身润滑的热塑材料制成，可以减轻轴的磨损和保持精密性。
立式冷藏柜limit switch to optimi the shaft rotation and to prevent rubbing with plastic material.
烧结青铜被浇铸作为限位开关的基部，使轴旋转最优化，并防止和热塑材料的摩擦。
Each cam can be t with great accuracy thanks to the cam adjusting screws. The auxiliary 由于凸轮调验螺丝，每个凸轮都能被精确的设置。
switches are of a positive opening type, thus suitable for safety functions. It is available with direct control switches for operating directly on the motor.
每个开关都是正面开放的，适合于安全功能。它通过直接控制开关来控制电机运转。
The cam-switch ts can be substituted for potentiometers suitable for the connection to electronic equipment. Each output of the limit switch can be t with a different revolution ratio to allow for a diversified control of the machinery to meet special requirements.
凸轮开关设置能够替代电位计来连接电子设备。每个限位开关都能够设置不同的转速比，实现机械装置的多元化控制以满足不同的特殊要求。
Materials and components are wear resistant and protect the equipment against water and dust. The limit switch is available with a flange for direct coupling to the motor and it can be customid with labels and colours according to the customer’s requirements.
设备材料和部件具备耐磨性，并且保护设备防水、防尘。限位开关通过一个法兰直接连
接电机，并且可以依据客户要求配置不同的颜色和标签。
2、Technical Specifications 技术规格
表1
| 做面包怎么做 符合社会法令 | 2006/95/CE |
符合标准 | EN 60204-1 EN60947-1 EN60947-5-1 EN60529 |
环境温度 | 储藏 -40℃/+70℃ 运行 -25℃/+70℃ |
保护等级 | IP 65 |
绝缘等级 | Class Ⅱ |
电缆规格 | 电缆夹M20 |
标记 | CE (UL - (c)UL limit switches available on request) |
cl的相对原子质量 | |
3、Technical Specifications of the Switches 开关技术规格
表2
使用类别 | AC15 （控制电路电器开关元件-交流） |
额定电流 | 3A |
额定电压 | 250V |
额定密闭热电流 | 10A |
社会责任意识额定绝缘电压 | 300V |
机械寿命 | 1x106 |
参考终端 | 参考EN 50013 |
e什么意思连接 | 带有自升式垫子的螺旋式终端 |
标记 | CE - UL - (c)UL |
| |
4、Standard Limit Switch Codes 标准的限位开关编码
表3
标准的限位开关配备有2、3、或者4个快速或者慢速动作开关和尖形凸轮PRSL7140PI。其他部件和转速比可以根据要求来配置，最多可以配置6个开关，最大的转速比是1：969。
5、U and Maintenance Instructions 使用和维护说明书
The GF4C rotary limit switch is an electromechanical device for low voltage control circuits (EN 60947-1, EN 60947-5-1) to be ud as electrical equipment on machines (EN 60204-1) in compliance with the fundamental requirements of the Low Voltage Directive 2006/95/CE and of the Machine Directive 98/37/CE.
