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CJ1W-MCH72 Datasheet(PDF) 8 Page - Omron Electronics LLC |
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CJ1W-MCH72 Datasheet(HTML) 8 Page - Omron Electronics LLC |
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8 / 374 page  Application precautions 5 ix • Locations subject to possible exposure to radioactivity. • Locations close to power supplies. !Caution The operating environment of the PLC System can have a large effect on the longevity and reliability of the system. Improper operating environments can lead to malfunction, failure, and other unforeseeable problems with the PLC System. Be sure that the operating environment is within the specified conditions at installation and remains within the specified conditions during the life of the system. 5 Application precautions !WARNING Do not start the system until you check that the axes are present and of the correct type. The numbers of the axis will change if MECHATROLINK-II network errors occur during start-up or if the MECHATROLINK-II network configuration changes. !WARNING Check the user program for proper execution before actually running it in the Unit. Not checking the program may result in an unexpected operation. !WARNING Observe the following precautions when using the CJ1W-MCH72 or the PLC. Failure to abide by the following precautions could lead to serious or possibly fatal injury. Always heed these precautions. • Always connect to a ground of 100 Ω or less when installing the Units. Not connecting to a ground of 100 Ω or less may result in electric shock. • Always turn OFF the power supply to the PLC before attempting any of the following. Not turning OFF the power supply may result in malfunction or electric shock. - Mounting or dismounting Power Supply Units, I/O Units, CPU Units, Memory Cassettes, or any other Units. - Assembling the Units. - Setting DIP switches or rotary switches. - Connecting cables or wiring the system. - Connecting or disconnecting the connectors. !Caution Be sure that all mounting screws, terminal screws, and cable connector screws are tightened to the torque specified in this manual. Incorrect tightening torque may result in malfunction. !Caution Wire correctly. Incorrect wiring may result in burning. !Caution Mount the Unit only after checking the terminal block completely. !Caution Resume operation only after transferring to the new CJ1W-MCH72 Unit the contents of the VR and table memory required for operation. Not doing so may result in an unexpected operation. !Caution When replacing parts, be sure to confirm that the rating of a new part is correct. Not doing so may result in malfunction or burning. !Caution Use the dedicated connecting cables specified in operation manuals to connect the Units. Using commercially available RS-232C computer cables may cause failures in external devices or the Unit. !Caution Outputs may remain on due to a malfunction in the built-in transistor outputs or other internal circuits. As a countermeasure for such problems, external safety measures must be provided to ensure the safety of the system. !Caution Failure to abide by the following precautions may lead to faulty operation of the PLC, the CJ1W-MCH72 or the system, or could damage the PLC or CJ1W-MCH72. Always heed these precautions. |
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