PFTL 101AE-2.0系统备件
系统描述系统包括一个或多个互连的压敏垫和一个控制单元。检测区域内没有“死区”。单个传感器垫部分有矩形标准尺寸，也有特殊切割形状，最大尺寸为最大标准垫。所有传感器垫具有相同的结构和操作原理。每个垫子都有两个导电板，它们由非导电的可压缩隔板隔开。这些垫子在24V DC下工作，并串联在一起，以形成机器周围危险区域的地面感应系统。通过垫的电路由控制单元监控，当区域空闲时，控制单元向机器控制电路提供信号。当踏上任何垫子时，导电板接触，电路中的电阻下降。这由关闭机器的控制单元监控。将检测到垫、接线或控制单元中的任何单个电气故障，并且控制单元输出将进入安全（OFF）状态。模制乙烯基传感器垫密封至IP 67.440F-C28013控制单元。该单元包括一个八通道传感垫系统。当踩下任何垫子时，控制单元将关闭机器，并在CHANNEL FAULT STATUS（信道故障状态）显示屏上显示正在操作的垫子。有两种操作模式：手动复位和自动复位。在手动复位模式下，输出“ON”信号只能在移除驱动力并复位后恢复。手动复位通过按下和释放盖上安装的控制单元复位按钮或远程安装的按钮来实现。在通电或断电后以及随后恢复电源后，输出将“关闭”，直到收到复位信号，即使垫子未启动。在自动复位模式下，仅通过移除驱动力来实现输出“ON”信号。对于这两种模式，在启动垫子后，安全触点将始终处于“OFF”（断开）状态。第5节将更详细地介绍模式选择。各个传感器垫通过4根电线相互连接并连接到控制单元。控制单元具有交叉监控的安全继电器，可以配置该单元，以便检测到外部接触器故障。控制单元电气故障符合EN 954-1第3类的要求，机器控制系统的相关部分也能满足。垫子传感器符合EN 954-1第1类的要求。第5节详细介绍了接口。
4 Section 2 - SYSTEM DESCRIPTION The system comprises one or more interconnected pressure sensitive mats and a control unit. There are no 'dead zones' within the detection zone. Individual sensor mat sections are available in rectangular standard sizes and also in specially cut shapes up to the size of the largest standard mat. All sensor mats have the same construction and operation principle. Each mat has two conductive plates which are held apart by non-conductive compressible separators. The mats operate at 24V DC and are connected together in series to form a floor level sensing system for hazard areas around machinery. The circuit through the mats is monitored by the control unit which, when the area is clear, provides a signal to the machine control circuit. When any mat is stepped on, the conductive plates touch and the resistance in the circuit drops. This is monitored by the control unit which shuts the machine down. Any single electrical fault in the mat, wiring or control unit will be detected and the control unit outputs will go to a safe (OFF) state. The moulded vinyl sensor mats are sealed to IP 67. 440F-C28013 Control Unit The unit comprises of an eight-channel sensing mat system. When any mat is stepped on the control unit shuts the machine down and indicates on the CHANNEL FAULT STATUS display which mat is operated. Two operating modes are available: manual reset and auto reset. IN MANUAL RESET mode the output 'ON' signal can only be restored after the actuating force has been removed and after a reset. The manual reset is achieved by pushing and releasing the lid mounted control unit reset button or a remote mounted button. At power-on or following the loss and subsequent restoration of power, the outputs will be 'off' until a reset signal is received even if the mat is not actuated. IN AUTO RESET mode the output 'ON' signal is achieved solely by removal of the actuating force. For both modes, the safety contacts will always be 'OFF' (open) after the mat is actuated. Mode selection is covered in more detail in section 5. Individual sensor mats connect to each other and to the control unit via 4 wires. The control unit has cross monitored safety relays and it is possible to configure the unit so that an external contactor fault will be detected. Compliance with the requirements of EN 954-1 category 3 is achieved for the control unit regarding electrical faults and can be met for the associated part of the machine control system. Compliance with the requirements of EN 954-1 category 1 is achieved for the mat sensors. Section 5 deals with interfacing in detail.
