3 1 2 How to Use DIN Terminal 1. Piping Make P port piping so that supply air pressure does not become lower than operating pressure while operating. If throttling air flow of P port, or opening A/B ports in the atmosphere (or opening in almost the same conditions), pressure drop at operating can cause malfunction of the valve. 2. Air quality Install an air filter and a lubricator on the upstream side. 3. Lubrication This solenoid valve requires lubrication. Use turbine oil Class 1 (ISO VG32). Besides that, for brands of each manufacturer, refer to SMC website. 4. Operating environment Install silencer in EA/EB/Pilot EXH port to prevent dust from entering in the dusty ambient. 5. Operation at low temperature If operating at 0°C or less, external pilot style solenoid valve is recommended. (Made to order; suffix “-X40” to the part number.) 6. Regarding VP435�ｭ (3 position closed center type) Be aware that when the cylinder is in an intermediate stop state, if the supply pressure to the P port is discharged or decreased, this valve is constructed so that the pressure in the cylinder will be discharged to the P port, causing the cylinder to move. 7. How to calculate the flow rate For obtaining the flow rate, refer to front matters 42 to 45. 3. Assembly 1) Terminal block (3) connected with housing (4) should be reinstated. 2) Putting rubber seal (7), plain washer (6), in this order into the cable introducing slit on the housing (4), then further tighten the cable gland (5) securely. 3) By inserting gasket (2a) or (2b) between the bottom part of the terminal block (3) and a plug on an equipment, screw in (1) on top of the housing (4) and tighten it. Note) Tighten within the tightening torque of 0.5 N・m ±20%. Changing the entry direction The cable entry direction of a connector can be changed as desired (4 directions at 90° intervals), depending on the combination of a housing (4) and a terminal block (3). 1. Disassembly 1) After loosening the screw (1), then if the housing (4) is pulled in the direction of the screw, the connector will be removed from the body of equipment (solenoid, etc.). 2) Pull the screw (1), and then remove gasket (2a) or (2b). 3) On the bottom part of the terminal block (3), there’s a cut-off part (indication of an arrow). If a small flat head screwdriver is inserted between the opening in the (3a) bottom, terminal block (3) will be removed from the cover (4). (Refer to figure at right.) 4) Remove the cable gland (5) and plain washer (6) and rubber seal (7). 2. Wiring 1) Pass them through the cable (8) in the order of cable ground (5), washer (6), rubber seal (7), and then insert into the housing (4). 2) Dimensions of the cable (8) are the figure as below. Skin the cable and crimp the crimped terminal (9) to the edges. 3) Remove the screw with washer (3e) from the bracket (3e). (Loosen in the case of Y-shape type terminal.) As shown in the below figure, mount a crimped terminal (9), and then again tighten the screw (3e). Note) Tighten within the tightening torque of 0.5 N・m ± 15%. Note: a It is possible to wire even in the state of bare wire. In that case, loosen the screw with washer (3e) and place a lead wire into the bracket, (3d) and then tighten it once again. b Maximum size of crimped terminal (9) is up to 1.25 mm2-3.5 when O terminal. For Y terminal, it is up to 1.25 mm2-4. c Cable (8) outside diameter: o 6 to o 12 mm Note) For the one with the outside diameter ranged between o 9 to o 12 mm, remove the inside parts of the rubber seal (7) before using. Exploded view Magnifying figure Self-up screw (1) (3) (4) (5) (6) (7) (8) (9) (3e) (3e) (3e) (3a) (3d) (3d) (3c) (2a) (2b) . Solenoid is wired with male thread terminals of DIN connector as follows. Connect with corresponding terminals of the connector. Terminal 1 2 3 A side Polarity B side COM DlN Terminal (Connection) Can be used as either “+ COM” or “. COM”. Series VP4�ｭ50/4�ｭ70 Specific Product Precautions Be sure to read before handling. Refer to front matter 53 for Safety Instructions and pages 3 to 8 for 3/4/5 Port Solenoid Valve Precautions. Caution 873 SY SJ SY SV SYJ SZ VF VP4 S0700 VQ VQ4 VQ5 VQC VQC4 VQZ SQ VFS VFR VQ7 A