Feedback systems for valves and valve actuators.

Transcription

1 Feedback systems for valves and valve actuators. Position sensors 102

2 For industrial applications Valve sensors from ifm electronic. The optimum solution for every requirement. Inductive dual sensors IND type Position feedback on quarter-turn actuators Feedback system efector valvis IX type Continuous position feedback on rising stem valves Inductive sensors IF, IG, II and IS type Position feedback on rising stem valves or inside switchboxes 2

3 VDI / VDE 3845 Feedback of two valve positions Feedback of three valve positions AS-i connection AS-i connection rising stem valves or inside switchboxes Continuous position feedback on rising stem valves quarter-turn actuators 3

4 Dual sensor IND type IND units combine two distinct inductive proximity sensors in a single, double insulated, IP 67 housing. One sensor provides a signal when the valve is open, the other when it is closed. The units are invaluable for confirming that power-operated Clearly visible position indicators: LEDs indicate current position and switching status as well as markings located on the target puck. Robust housing: IND type sensors incorporate two distinct inductive elements in a housing sealed to IP 67. The tough housing will also withstand impacts allowing their use in any application. Compatible with VDI / VDE 3845: All IND sensors are compatible with VDI / VDE 3845 guidelines meaning they are simple to fit to nearly any actuator. Connection opportunities: Versions with integrated AS-i chips allow simple addition to AS-i networks, M12 cabled versions and units with a terminal chamber mean that ifm s INDs are the simplest choice for valve control. Unit with terminal chamber: Two captive screws above the cable gland enable easy opening and closing of the terminal chamber. The wiring can be maintained if the sensor is replaced, thanks to the removable terminal block. As an option, a solenoid valve can be triggered. 4

5 Position feedback on quarter-turn actuators. and manual valves are in the appropriate position for correct and safe operation in all types of process plant. VDI / VDE 3845 is a guideline which defines, amongst other things, the mechanical mounting arrangements for fitting switch boxes to actuators. The IND units have been specifically designed to conform to and take advantage of this guideline, allowing them to be fitted to the majority of actuators with the minimum of effort. Continuous position feedback on rising stem valves quarter-turn actuators By using state-of-the-art production technologies it has become possible to incorporate the latest AS-i technology with sensors and switching outputs in a space-saving housing. All these features facilitate mounting, set-up and maintenance for the user and increase uptime of the whole AS-Interface system. Many accessories are available including target pucks for most valve actuators. The selector facilitates the selection of pucks for different quarter-turn actuators. rising stem valves or inside switchboxes Namur IND units used with quarterturn valves installed on an oil tanker. Sensors with ATEX Cat. 1D/1G/2G were chosen because of the installation inside an explosive area. 5

6 Feedback system efector valvis IX type AS-i integrated: AS-Interface from ifm is the ideal way to communicate feedback from multiple valves and is incorporated, as standard, in the efector valvis. Requirement: Everywhere in the food industry valves are used for shutting off, monitoring and controlling. They are decisive components for the safety, accuracy and reliability of plants. Implementation: Conventionally, magnetic or inductive proximity switches assume this task. They signal end stops such as open or closed to the controller by means of a switched signal. Freely programmable: With 3 switching outputs, the efector valvis gives reliable indication of the valve piston s position: open, closed or seat lift. Simple set up: Uncomplicated programming by pushing a button replaces mechanical adjustment to the respective valve positions. For a comprehensive selection of accessories and adapters for efector valvis see Adapters: Rising stem valves differ of course, so a range of adapters for many valve types, for example Alfa Laval, Südmo, GEMÜ and Georg Fischer, are available. Easy position setup due to freely programmable switching outputs. They transmit the actual limits of travel to the controller. 6

7 Continuous position feedback on single, double seat and diaphragm valves. However, the detection of intermediate positions is of increasing interest. It allows the detection of cleaning cycles for rising stem valves as well as the visualisation of unintended operating states by means of continuous valve detection. This is the only way to meet the growing requirements of modern process visualisation. quarter-turn actuators Continuous position feedback on rising stem valves With thanks to different adapters, efector valvis can be mounted on various valve types. In this case it is installed on an ON-OFF diaphragm valve. I.e. two switching points have to be set up. By missing the Seat position out, the sensor realises that only two switching points are needed. rising stem valves or inside switchboxes efector valvis was designed for feedback of the valve positions on rising stem valves with a stroke of up to 80 mm. The sensor is fitted over the valve spindle and continuously measures the stroke. This shows an installation on double seat valves, all three switching points are used. Product information efector valvis 7

8 Inductive sensors IF, IG, II and IS type Position feedback on rising stem valves or inside switchboxes. Robust: Tried and tested for extreme requirements in hygienic and wet areas such as permanently high temperatures, temperature shocks or aggressive cleaning agents. Food-grade: Housing materials such as stainless steel in combination with PEEK or pure stainless steel sensors. Flexible: Common housing types and lengths for installation in different applications. Increased sensing ranges ensure flexible installation for mechanical tolerances. The sensors undergo a hard test program of temperature cycle, steam boiler, vibration, shock and temperature This procedure guarantees the highest operational reliability for any conditons in the food industry. quarter-turn actuators Continuous position feedback on rising stem valves rising stem valves or inside switchboxes Ingress-resistant: The ingress resistance to protection rating IP 69K prevents moisture penetration. Safe connection: ecolink EVT the ideal connector for hygienic and wet areas: PVC cables and housings plus stainless steel coupling nuts provide protection to IP 69K. The common valve boxes can be used with the square-shaped sensors of type IS. Customer-specific versions such as platinum connectors facilitate installation.

9 System at a glance: Inductive dual sensors Type Operating voltage [V] IND IND IND IND single solenoid AC/DC 24 DC 24 DC 24 DC Connection 2 m cable, 2 x 2 wires M12, 2 x 2 wires M12, 2 x 3 wires Rd24, M12 solenoid, 7 wires Order no IN0110 IN5331 IN5327 IN5334 IND terminal, double solenoid 24 DC M20 + terminals, 7/8 wires IN5409 IND single solenoid AS-i M12, M12 solenoid, 2 wires AC2316 IND double solenoid AS-i M12, 2 x M12 solenoid, 2 wires AC2317 IND ATEX 8.2 DC Namur M12, 2 x 2 wires NN5008 IND ATEX 8.2 DC Namur M18, 2 x 2 wires NN5013 IND ATEX, single solenoid 8.2 DC Namur Rd24, M12 solenoid, 6 wires + PE N95001 Target pucks and accessories Description Order no Target puck, Ø 53 mm Target puck, Ø 53 mm, 8 switching flag positions Target puck, Ø 65 mm, Target puck, Ø 102 mm, Cable gland, M20 x 1.5 Protective cap, M20 x 1.5 Plug for covering the oblong holes Reinforcement bracket Flat cable connector E10661 E17321 E17327 E17328 E12208 E12209 E12212 E11310 E70096 Feedback system efector valvis Accessories mounting adapter Type Operating voltage [V] Connection Order no Description Order no IX IX IX 24 DC binary AS-i analogue 0.3 m Pigtail M12, 5 wires 0.3 m Pigtail M12, 2 wires 2 m cable, 3 wires IX5010 IX5030 IX5002 for Alfa Laval valves for Südmo valves for Bardiani valves IX / Ø 30 mm, for Gemü actuators IX / Ø 45 mm, for Gemü actuators E11900 E11989 E12170 E12042 E12043 Inductive sensors Type V3 microswitch style V3 microswitch style V3 microswitch style V3 microswitch style V3 microswitch style M12 body M18 body M30 body Operating voltage [V] Connection 24 DC 24 DC AC / DC 2 m cable, 3 wires 2 m cable, 2 wires 2 m cable, 2 wires 8.2 V DC Namur 2 m cable, 2 wires 8.2 V DC Namur m cable, 2 wires 24 DC M12, 3 wires 24 DC M12, 3 wires 24 DC M12, 3 wires Order no IS5001 IS5026 IS0003 NS5002 NS5009 IFT240 IGT247 IIT228 8

10 Visit our website: Overview ifm product range: Over 70 locations worldwide at a glance at ifm electronic gmbh Friedrichstraße Essen Tel. +49 / 201 / Fax +49 / 201 / info@ifm.com Position sensors Sensors for motion control Industrial imaging Safety technology Process sensors Industrial communication Identification systems Condition monitoring systems Systems for mobile machines Connection technology Accessories ifm article no We reserve the right to make technical alterations without prior notice. Printed in Germany on non-chlorine bleached paper. 09/12