Festo VPCF-6-L-8 Series Manuals

Proportional flow control valve VPCF-6-L-8-... Festo AG & Co. KG Postfach 73726 Esslingen Germany +49 711 347-0 www.festo.com Operating instructions 8066867 1611a [8066869] Original: de Proportional flow control valve VPCF-6-L-8... English . . . . . . . . . . . . . . . . . . . . . . . 1 Safety 1.1 Use for intended purpose The proportional flow control valve VPCF-6-L-8-... is intended for regulation of a flow proportional to a specified setpoint value. The flow control valve is intended for use in an industrial environment. Outside of industrial environments, e.g. in commercial and mixed-residential areas, actions to suppress interference may have to be taken. 1.2 Safety instructions � Use the flow control valve only in its original status without unauthorised modi­ fications. � Use the flow control valve only in an excellent technical status. � Comply with all applicable national and international regulations. � Comply with specified limits (� Chapter 12, Technical data). � Take into consideration the ambient conditions at the location of use. 1.3 Training of skilled personnel Only qualified personnel may perform installation, commissioning, maintenance and disassembly of the flow control valve. The qualified personnel must be familiar with installation and operation of electrical and pneumatic control systems. 2 Structure 2 4 5 1 6 7 8 9 7 aJ aA 3 6 1 Electrical connection, plug M12 2 Service interface, sealed with cover cap (only for Festo service staff) 3 Air port (2) 4 Threaded holes M5 (10 mm deep) for mounting of the flow control valve, � Fig. 6 5 Hole for earth connection (FE), � Fig. 6 6 Through-holes for mounting the flow control valve 7 Threaded holes M5 (10 mm deep) for mounting of the flow control valve 8 Exhaust air port (3) 9 Hole for earth connection (FE) aJ Compressed air port (1) aA LEDs Fig. 1 3 Product variants Characteristic Type code Description Basic function VPCF Proportional flow control valve Nominal width 6 6 mm Valve type L In-line valve Valve function 8 3/3-way valve Pneumatic port G38 G3/8 Pressure range 6 0 … 6 bar 10 0 … 10 bar Setpoint specification V1 Voltage variant 0 … 10 V A4 Current variant 4 … 20 mA Display type E LED EU certification EX2 II 3G, II 3D Fig. 2 4 Function The flow control valve is a proportional directional control valve with integrated flow regulator. The flow regulator determines the current flow, based on its intern­ al measured values, and compares it to the setpoint value. If the current value deviates from the setpoint, the valve is actuated until the flow has reached the setpoint value. Fig. 3 5 Transport and storage � Store the product in a dry, UV- and corrosion-protected environment. Ensure storage times are short. 6 Installation 6.1 Mechanical installation � Make sure there is sufficient space for the connecting line and tubing connec­ tions. In this way you will prevent the connecting lines and the tubes from being broken. � Place the flow control valve as close as possible to the consumer. This leads to improved control precision and shorter response times. Mounting options of the flow control valve: – Through-hold mounting through 2 lateral through-holes – Direct mounting through 4 threaded holes (M5x10 mm) on the underside of the flow control valve – Direct mounting through 4 threaded holes (M5x10 mm) on the front side of the flow control valve Through-hole fastening Direct mounting Side Bottom Front 1 2 2 1 Screw M6 (2x) for through-hole fastening 2 Screw M5 (4x) for direct mounting Fig. 4 � Fasten flow control valve with screws 1 or 2. – Observe the tightening torque (� Fig. 5). – In the case of direct mounting from below or from the front: Also observe the maximum screw-in depth (� Fig. 5). Type of mounting Tightening torque [Nm] Max. screw-in depth [mm] Through-hole fastening Max. 9 Nm – Direct mounting from below 5 Nm 10 mm Direct mounting on the front 5 Nm 10 mm Fig. 5