IS200PICHG1A可编程输入模块
通信和信号布线——将一切联系在一起的通信网络，包括计算机局域网、MAP和现场总线。这四种类型的接线应尽可能分开，以减少绝缘故障、错误接线和信号之间的相互作用（噪声）带来的危险。典型的控制系统可能需要混合后三种类型的布线，特别是在电机控制中心内和控制面板上的狭窄区域。一般来说，可以将通信总线电缆与模块布线以及相关控制级布线混合。所有噪声拾取都是累积的，这取决于导线之间的间距和它们一起运行的距离跨度。电线和通信总线电缆可以随机放置在长达50英尺的电线槽中。如果电线是绳扎（套）的，不要将总线电缆包括在线束中，因为将电线紧紧地绑在一起会增加耦合和机械应力，从而损坏某些串联电缆类型的相对软绝缘。考虑在电气噪声环境中使用屏蔽电缆。设备和电缆槽的外部接线应按照国家电气规范的惯例分开。1 GFK-1504N第2章安装2-15 2安装电源和接地线电源端子可容纳一根AWG#14（平均横截面积2.1mm2）至AWG#22（平均横截面0.36mm2）导线，或两根AWG#18（平均横面积0.86mm2）导线。使用额定温度为90摄氏度的铜线。在同一位置插入两根电线时，电线的尺寸和类型必须相同（实心或绞合）。用最大长度为4英寸的AWG#14（平均2.1mm2）导线将接地端子连接到导电安装面板。使用星形垫圈等硬件以确保接地完整性。接地直流电源直流电源是非隔离的。直流-必须接地至机架/接地。直流-接地至电源内部的机架。因此，无法使用浮动电源。DC+DC接地交流电源交流电源被隔离。因此，交流电源不必接地。但是，建议仅使用接地参考源，例如中性线或接地中心抽头变压器。H N 2-16 VersaMax模块、电源和托架用户手册GFK-1504N 2跳线安装在交流电源模块上交流电源模块（IC200PRW101和IC200PWR102）可用于120 V交流或240 V交流标称输入电源。对于120 V AC标称操作，按照电源上的标记安装跳线。使用绝缘AWG#14（平均横截面积2.1mm2）至AWG#22（平均横截面0.36mm2）电线。120V跳线电源在未安装跳线的情况下运行；然而，不符合滞留规范。如果没有为120 V AC操作安装跳线，电源不会造成危险情况。警告：240V交流操作时不要使用跳线。如果输入连接器上使用跳线进行240V AC标称操作，则电源将损坏，并可能导致危险情况。不要在系统通电时触摸跨接导线的暴露部分。存在可能导致人身伤害的危险电压。GFK-1504N第2章安装2-17 2安装附加抑制装置为符合机构要求，需要从机架接地的正负输入或系统外壳的电源线输入处进行外部金属氧化物变阻器（MOV）抑制
Communications and signal wiring – the communications network that ties everything together, including computer LANs, MAP, and field busses. These four types of wiring should be separated as much as possible to reduce the hazards from insulation failure, incorrect wiring, and interaction (noise) between signals. A typical control system may require some mixing of the latter three types of wiring, particularly in cramped areas inside motor control centers and on control panels. In general, it is acceptable to mix the communications bus cable with the wiring from the blocks, as well as associated control level wiring. All noise pickup is cumulative, depending on both the spacing between wires, and the distance span they run together. wires and communications bus cable can be placed randomly in a wiring trough for lengths of up to 50 ft. If wiring is cord– tied (harnessed), do not include the bus cable in the harness, since binding wires tightly together increases the coupling and mechanical stress that can damage the relatively soft insulation of some serial cable types. Consider using shielded cable in electrically noisy environments. External wiring to the equipment and in cable trays should be separated following National Electrical Code practices. 1 GFK-1504N Chapter 2 Installation 2-15 2 Installing Power and Ground Wiring Power Supply terminals accommodate one AWG #14 (avg. 2.1mm2 cross section) to AWG #22 (avg. 0.36mm2 cross section) wire, or two wires up to AWG #18 (avg. 0.86mm2 cross section). Use copper wire rated for 90 deg C. When inserting two wires in the same position, the wires must be the same size and the same type (solid or stranded). Connect the ground terminal to the conductive mounting panel with a 4 in maximum length of AWG #14 (avg. 2.1mm2 ) wire. Use hardware such as star washers to ensure ground integrity. Grounding DC Power Supplies DC power supplies are non-isolated. DC- must be grounded to frame / earth ground. DC- is grounded to frame internally in the Power Supply. As a result, floating power supplies cannot be used. DC+ DCGrounding AC Power Supplies AC power supplies are isolated. Therefore, the AC source does not have to be grounded. However, it is recommended to only use ground-referenced sources such as a neutral line or grounded center-tap transformer. H N 2-16 VersaMax Modules, Power Supplies and CarriersUser Manual GFK-1504N 2 Jumper Installation on an AC Power Supply Module AC power supply modules (IC200PRW101 and IC200PWR102) can be used with either 120 V AC or 240 V AC nominal input power. For 120 V AC nominal operation, install a jumper as marked on the power supply. Use insulated AWG #14 (avg. 2.1mm2 cross section) to AWG #22 (avg. 0.36mm2 cross section) wire. JUMPER FOR 120V The power supply operates without a jumper installed; however, the hold-up specification is not met. If a jumper is not installed for 120 V AC operation, the power supply will not cause hazardous conditions. Warnings DO NOT USE A JUMPER FOR 240V AC OPERATION. If a jumper is used on the input connector for 240V AC nominal operation, the power supply will be damaged and may cause hazardous conditions. Do not touch the exposed portions of the jumper wire with power applied to the system. Hazardous voltages are present that could cause personal injury. GFK-1504N Chapter 2 Installation 2-17 2 Installing Additional Suppression For agency compliance, external Metal Oxide Varistor (MOV) suppression is required from both the positive and negative input to frame ground or at the power line input of a system enclosure
