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AZ7450 Datasheet(PDF) 6 Page - Panasonic Semiconductor |
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AZ7450 Datasheet(HTML) 6 Page - Panasonic Semiconductor |
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6 / 20 page  37 Terminal Mold Type (Epoxy-Sealed Terminal Type) The waterproof type (IP64) has its terminals sealed with epoxy resin. 1. Type of product All the standard type have this epoxy-sealed terminal types. 2. Appearance The dimensions are the same as those of the standard type. The cord outlet is located either at the N.C. or COM side. The cord is 1 m 3.281ft. long. 1. Ambient conditions 1) When the switch is to be used in places where oil or is abundant, bore a drain hole in the bottom of the terminal cover. 2) Avoid places where highly acid or alkaline fluids are used or high tempera- tures prevail. 3) This model uses silver terminals. Therefore, if used at relatively low fre- quencies for long periods of time, or if used with very small loads, the oxidiza- tion that forms on the contact surfaces will not wear away and eventually cause improper contact. For such applications, use limit switches with gold/metal con- tacts (e.g. VL limit switches) or ones meant for small loads (e.g. HL limit switches). 4) This switch is not designed for under- water use. Do not use the unit under- water. 5) To improve reliability during actual use, it is recommended that the opera- tion be checked under installation condi- tions. 6) If OT is too big, the life of limit switch will be shortened switching friction. Use it with enough margin of OT. 70% of OT standard value will be good for use. 7) Do not use the switch in a silicon atmosphere. Case should be taken where organic silicon rubber, adhesive, sealing material, oil, grease or lead wire generates silicon. 8) Avoid use in excessively dusty envi- ronments where actuator operation would be hindered. 9) When used outdoors (in places where there is exposure to direct sunlight or rain such as in multistory car parks) or in environments where ozone is generated, the influence of these environments may cause deterioration of the rubber materi- al. Please consult us if you intend to use a switch in environments such as these. 10) Do not store in places where organic gas might be generated or in places of high dust content or high humidity. 2.Mounting and wiring 1) Remove the terminal cover with a v driver. Insert the lead wire through the knock-out of the terminal cover. (The terminal cover of the epoxy-sealed terminal type is filled with resin. It cannot be removed.) 2) Connect the lead wire to the terminal. When connecting the terminals with the fasten lug, those with the insulation sleeve are recommended. Tightening torque: 1.18 to 1.47 N·m {12 to 15 kg·cm} 3) The terminal cover can be mounted in both directions. • In this case, fasten the terminal cover in the opposite direction. • Side mounting To mount onto a side, use M4 screws with washers and secure it firmly. The tightening torque should be 1.18 to 1.47 N·m (12 to 15 kg·cm). • Panel mounting (panel mount plunger type) When installing the panel mounting type onto a panel, the tightening torque for the hex. nut should be 7.84 N·m (80 kg·cm). • For terminal mold types (epoxy-sealed terminal types), there are two types by the cord outlet direction; N.C. side and COM side. 3. Flexible rod 1) Put the detective object to the tip of plastic part. 2) Avoid pushing the tip of actuating spring in the direction of axis. In the places of oil or water splashes and much dust area, use the limit switch with keep- ing the actuating spring in the vertical direction. CAUTIONS COM terminal N.O. terminal N.C. terminal 3-core vinyl cabtire cable Epoxy resin filled up for reliable watertightness and heat resistance. Cord outlet direction: N.C. Cord outlet direction: COM • Cord specifications Type Vinyl cabtire cable (VCT)(3 × 1.25mm2) Cord length Lead colors 1m 3.281ft. Black: COM Red: N.C. White: N.O. Standard type N.C. COM ML (AZ7) |
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