Chap te r 2 Installing the HardwareThere are two ports on an extension backplane. The upper port is used to connect to a superiorbackplane, and the lower port is used to connect to an inferior backplane.2.2 Warningz An AH500 system only supports the horizontal installation, and a power supply module has to beinstalled on the left-most side of a backplane.z Before a module is installed, please make sure of the size of the module and that of a backplane.To prevent the misestimate from resulting in insufficient installation space, the size of theconnector of a communication cable, and the room which needs to be reserved have to be takeninto account.z Please make sure that the work environment conforms to the specifications for the products. It isnecessary to take account of the basic temperature/humidity control and the dust/corrosionprevention.z The electromagnetic interference will result in the wrong action of the whole system. Therefore,users have to do EMC design carefully. Please refer to chapter seven in this manual for moreinformation related to EMC standards.z If the specifications for the components such as screws and washers are noted specifically in themanual, please use the components conforming to the specifications.z If a cable is connected to a communication port, please make sure that the connector of the cableis joined to the port on the module properly.z A backplane has to be mounted on a plane stably instead of being just set on the plane. After it isinstalled, please make sure that it is fixed on the plane.2.3 Installation2.3.1 Installation of Modules in a Control Boxz A PLC has to be installed in a closed control box. In order to ensure that the PLC radiates heatnormally, the space between the PLC and the control box has to be larger than 50 millimeters.50mm＞50mm＞50mm＞50mm＞ Please keep the PLC away from high-voltage equipment, high-voltage wires, and high-voltagemotors. In order to prevent the temperature of a PLC from rising, please do not install the PLCvertically on the bottom/top in the control box. Please install a PLC horizontally in the control box, as shown above. If users intend to increase the number of modules, they have to leave some space for installingthe modules in the control box.2.3.2 Mounting a Backplanez Fixing a backplane by screwsPlease mount a backplane on a plane by means of M5 screws, as illustrated below. To fix thebackplane, users need to judge the length of a screw, the size of a thread, and whether to use a2 - 9
