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Side B Side A Side B JAPANESEENGLISH JY997D13101D This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property rights which may occur as a result of using the contents noted in this manual. Warranty Mitsubishi will not be held liable for damage caused by factors found not to be the cause of Mitsubishi; opportunity loss or lost profits caused by faults in the Mitsubishi products; damage, secondary damage, accident compensation caused by special factors unpredictable by Mitsubishi; damages to products other than Mitsubishi products; and to other duties. For safe use This product has been manufactured as a general-purpose part for general industries, and has not been designed or manufactured to be incorporated in a device or system used in purposes related to human life. Before using the product for special purposes such as nuclear power, electric power, aerospace, medicine or passenger movement vehicles, consult with Mitsubishi Electric. This product has been manufactured under strict quality control. However when installing the product where major accidents or losses could occur if the product fails, install appropriate backup or failsafe functions in the system. HEAD OFFICE HIMEJI WORKS : TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN : 840, CHIYODA CHO, HIMEJI, JAPAN Safety Precaution (Read these precautions before use.) This manual classifies the safety precautions into two categories: and . Depending on the circumstances, procedures indicated by may also cause severe injury. It is important to follow all precautions for personal safety. Associated Manuals How to obtain manuals For product manuals or documents, consult with the Mitsubishi Electric dealer from who you purchased your product. Indicates that incorrect handling may cause hazardous conditions, resulting in death or severe injury. Indicates that incorrect handling may cause hazardous conditions, resulting in medium or slight personal injury or physical damage. Manual nameManual No.Description FX3U Series Users Manual - Hardware Edition JY997D16501 MODEL CODE: 09R516 Explains the FX3U Series PLC specifications for I/O, wiring, installation, and maintenance. FX3UC Series Users Manual - Hardware Edition JY997D28701 MODEL CODE: 09R519 Explains the FX3UC Series PLC specifications for I/O, wiring, installation, and maintenance. FX3U/FX3UC Series Programming Manual - Basic & Applied Instruction Edition JY997D16601 MODEL CODE: 09R517 Describes PLC programming for basic/applied instructions and devices. FX Series Users Manual - Data Communication Edition JY997D16901 MODEL CODE: 09R715 Explains N:N network, Parallel Link, Computer Link, Non- Protocol communication by RS and RS2 instructions/FX2N- 232IF. This manual describes the specifications and installation details for the FX3U- 422-BD. For wiring with communication equipment, system configuration, communication settings, and program examples, refer to the FX Series Users Manual - Data Communication Edition. Applicable standards FX3U-422-BD units made in June, 2005 or later comply with the EC Directive (EMC Directive). Further information can be found in the following manual. However, the FX3UC-32MT-LT does not comply with the EC Directive (EMC Directive). Refer to the FX3U Series Hardware Manual (Manual No. JY997D18801) 1.Outline FX3U-422-BD is an expansion board with a port for connecting a programming tool, GOT, or ET Series. 1.1Incorporated Items 1.2External Dimensions and Part Names 2.Installation ProductRS-422 communication expansion board FX3U-422-BD Included items M3 tapping screws for installation: 2 pcs. Installation Manual (This manual) INSTALLATION PRECAUTIONS Make sure to cut off all phases of the power supply externally before attempting installation or wiring work. Failure to do so may cause electric shock or damage to the product. INSTALLATION PRECAUTIONS Use the product within the generic environment specifications described in PLC main unit manual (Hardware Edition). Never use the product in areas with excessive dust, oily smoke, conductive dusts, corrosive gas (salt air, Cl2, H2S, SO2, or NO2), flammable gas, vibration or impacts, or exposed to high temperature, condensation, or rain and wind. If the product is used in such conditions, electric shock, fire, malfunctions, deterioration or damage may occur. Use screwdrivers carefully when performing installation work, thus avoiding accident or product damage. When drilling screw holes or wiring, make sure cutting or wire debris does not enter the ventilation slits. Failure to do so may cause fire, equipment failures or malfunctions. Do not touch the conductive parts of the product directly. Doing so may cause device failures or malfunctions. Connect the expansion board securely to their designated connectors. Loose connections may cause malfunctions

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