3 Installation and Wiring 3-1 Installation This section describes the installation environment of the NB Unit and how to mount the NB Unit to the control panel. When mounting the NB unit onto the operation panel, pay attention to the following precautions. WARNING Always ensure that the personnel in charge confirm that installation, inspection, and maintenance were properly performed for the NB Unit. “Personnel In charge” refers to individuals qualified and responsible for ensuring safety during machine design, installation, operation, maintenance, and disposal.
Ensure that installation and post-installation checks are performed by personnel in charge who possess a thorough understanding of the machinery to be installed. Precautions for Correct Use Precautions for Correct Use • Do not install the Unit in any of the following locations:
Locations subject to rapid changes in temperature Locations subject to temperatures or humidity outside the range specified in the specifications Locations subject to condensation as the result of high humidity Locations subject to corrosive or flammable gases Locations subject to strong shock or vibration Locations outdoors subject to direct wind and rain Locations subject to strong ultraviolet light Locations subject to dust Locations subject to direct sunlight Locations subject to splashing oil or chemicals • Take appropriate and sufficient countermeasures when the product is used in the following locations:
Locations subject to static electricity or other forms of noise Locations subject to strong electric field or magnetic field Locations close to power supply lines Locations subject to possible exposure to radioactivity Precautions for Safe Use When unpacking the NB Units and the peripheral devices, check carefully for any external scratches or other damages. Also, shake the Unit gently and check for any abnormal sound. 3-2 NB-series Programmable Terminals Startup Guide Manual(V109)