Mitsubishi Electric JY992D85101A User Manual

FX2N -20PSU DC POWER SUPPLY UNITUSER’S MANUALJY992D85101AThis manual contains text, diagrams and explanations which will guide the reader in the correct installationand operation of the FX 2N -20PSU DC power supply unit. It should be read and understood beforeattempting to install or use the unit. Further information can be found in the FX series PLC hardware man-uals.If in doubt at any stage during the installation of the FX2N-20PSU DC power supply unit always consult aprofessional electrical engineer who is qualified and trained to the local and national standards.Note’s on the symbology used in this manualAt various times through out this manual certain symbols will be used to highlight points of infor-mation which are intended to ensure the users personal safety and protect the integrity of theequipment. Whenever any of the following symbols are encountered, its associated note must beread and understood. Each of the symbols used will now be listed with a brief description of itsmeaning.Hardware warnings1) Indicates that the identified danger WILL cause physical and property damage.2) Indicates that the identified danger could POSSIBLY cause physical and property damage.1. INTRODUCTIONThe DC power supply unit FX 2N -20PSU is available as the following applications.• Power supply of 24V DC power type PLC• Power supply of special extension block of PLC• Power supply of sensor connected to input of PLC• Power supply of DC load connected to output of PLC• Power supply of display unit such as graphic operation terminal (GOT)Guidelines for the safety of the user and protection of the FX2N -20PSU DCPOWER SUPPLY UNIT• This manual has been written to be used by trained and competent personnel. This is definedby the European directives for machinery, low voltage and EMC.• If in doubt at any stage during the installation of the FX 2N -20PSU always consult a profes-sional electrical engineer who is qualified and trained to the local and national standards. If indoubt about the operation or use of the FX 2N-20PSU please consult the nearest MitsubishiElectric distributor.• Under no circumstances will Mitsubishi Electric be liable or responsible for any consequentialdamage that may arise as a result of the installation or use of this equipment.• All examples and diagrams shown in this manual are intended only as an aid to understand-ing the text, not to guarantee operation. Mitsubishi Electric will accept no responsibility foractual use of the product based on these illustrative examples.• Owing to the very great variety in possible application of this equipment, you must satisfyyourself as to its suitability for your specific application.