Burkert 8690 Operating Instructions Manual
Pneumatic control unit
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Summary of Contents for Burkert 8690
- Page 1 Type 8690 Pneumatic Control Unit Operating Instructions...
- Page 2 We reserve the right to make technical changes without notice. Technische Änderungen vorbehalten. Sous réserve de modifications techniques. © Bürkert Werke GmbH & Co. KG, 2008 - 2017 Operating Instructions 1709/09_EU-EN_00805640 / Original DE...
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Page 3: Table Of Contents
Type 8690 7.2 Installation of the Pneumatic Control Unit Type 8690 Operating instructiOns ..........4 on process valves of series 21xx....... 12 Symbols ............... 4 7.3 Installation of the Pneumatic Control Unit Type 8690 1.2 Definition of term / abbreviation ........4 on process valves of series 20xx....... 14 authOrized use ............... 5 7.4 Rotating the actuator module ........17 7.5 Rotating the Pneumatic Control Unit for process Basic safety instructiOns .......... 5 valves belonging to series 20xx ........ 19 general infOrmatiOn ............ 6 pneumatic installatiOn .......... -
Page 4: Operating Instructions
Type 8690 Operating instructions Operating instructiOns Caution! The operating instructions describes the entire life cycle of the Warns of a possible danger. device. Keep these instructions in a location which is easily acces- ▶ Failure to observe this warning may result in a moderate or sible to every user, and make these instructions available to every minor injury. new owner of the device. note! important safety information. Warns of damage to property. Read the operating instructions carefully and thoroughly. Study ▶ Failure to observe the warning may result in damage to the in particular the chapters entitled “Basic safety instructions”... -
Page 5: Authorized Use
Type 8690 Authorized use authOrized use Basic safety instructiOns These safety instructions do not make allowance for any non-authorized use of the pneumatic control unit type 8690 may be a hazard to people, nearby equipment and the • contingencies and events which may arise during the installation, environment. operation and maintenance of the devices. The device is designed to be mounted on pneumatic actuators • local safety regulations, whereby the operator is responsible for of process valves for the control of media. their compliance, by the installation personnel too. ▶ In the potentially explosion-risk area the Pneumatic Control Unit... -
Page 6: General Information
Type 8690 General information general infOrmatiOn general hazardous situations. To prevent injury, ensure: Contact address ▶ That the system cannot be activated unintentionally. ▶ Installation and repair work may be carried out by authorized germany technicians only and with the appropriate tools. Bürkert Fluid Control Systems ▶ After an interruption in the power supply or pneumatic supply, Sales Center ensure that the process is restarted in a defined or controlled Chr.-Bürkert-Str. 13-17 manner. D-74653 Ingelfingen ▶ The device may be operated only when in perfect condition Tel. : 07940 - 10 91 111 and in consideration of the operating instructions. Fax: 07940 - 10 91 448 ▶ The general rules of technology apply to application planning E-mail: info@burkert.com and operation of the device. To prevent damage to property of the device, ensure: international ▶ Do not feed any aggressive or flammable media into the pilot air port. -
Page 7: Trademarks
Type 8690 Description of system Trademarks descriptiOn Of system Brands and trademarks listed below are trademarks of the cor- Configuration and function responding companies / associations / organizations The Pneumatic Control Unit Type 8690 can control single or double- Loctite Henkel Loctite Deutschland GmbH acting process valves. The Pneumatic Control Unit Type 8690 has been optimized for inte- Information on the internet grated, modular installation on process valves of the 21xx series. The module configuration permits a variety of expansion steps. The operating instructions and data sheets for Type 8690 can be found on the Internet at: For installation on the 20xx series there is a special model which is described in Chapter “5.1.2”. www.burkert.com 5.1.1 Pneumatic Control Unit for integrated installation on 21xx series... - Page 8 Type 8690 Description of system 5.1.2 Model for control of process valves Optical position indicator: belonging to the 20xx series The device status is displayed on the pneumatic control unit (yellow mark). A special model enables the Pneumatic Control Unit Type 8690 to be attached to process valves belonging to the 20xx series. Option: electrical position feedback This model has a different connection housing so that the pilot air Optionally mechanical limit switches (micro switches) or inductive ports can be connected to the outside of the actuator. limit switches (proximity switches) can measure the valve position. View without transparent cap: Pilot air outlet 2 Pilot air outlet 2 Screw for adjustment of the lower micro switch or the lower Fastening screws (2 x) proximity switch Optical position indi- Fig.
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Page 9: Technical Data
Type 8690 Technical data technical data Operating conditions Warning! Conformity Solar radiation and temperature fluctuations may cause mal- In accordance with the EU Declaration of conformity, the Pneu- functions or leaks. matic Control Unit Type 8690 is compliant with the EU Directives ▶ If the device is used outdoors, do not expose it unprotected (if applicable). to the weather conditions. Standards ▶ Ensure that the permitted ambient temperature does not exceed the maximum value or drop below the minimum value. -
Page 10: Mechanical Data
Type 8690 Technical data Mechanical data Connections P lug-in hose connector ∅6 mm / ¼” Socket connection G 1/8 Dimensions see data sheet Electrical data Housing material external PPS, PC Sealing material e xternal EPDM Warning! internal NBR Only circuits with limited power may be used for UL approved Stroke range of valve spindle M icro switch 7–28 mm components according to “NEC Class 2”. Proximity switch 2–28 mm Pneumatic data Protection class 3 as per DIN EN 61140 (VDE 0140-1) Connections C able gland M16 x 1.5, wrench size 22 Control medium n eutral gases, air, Quality classes in accor- (clamping area 5 – 10 mm) -
Page 11: Type Label
Type 8690 Installation Type label installatiOn Example: Only for Pneumatic Control Unit without pre-assembled Type; Features of the type code applicable to UL process valve. and ATEX Control function; pilot valve; Safety instructions Supply voltage pilot valve 8690 -E3-I2-* PU02 single act pilot 3.0 24V Danger! Operating pressure - limit switch Pmax 7 bar 2 sw.ind. Tamb -10 - +55 °C Max. ambient temperature risk of injury from high pressure in the equipment/device. S/N 1001 ▶ Before working on equipment or device, switch off the pressure Serial number / CE mark 00123456 W15MA and deaerate/drain lines. risk of electric shock. -
Page 12: Installation Of The Pneumatic Control Unit Type 8690 On Process Valves Of Series 21Xx
Type 8690 Installation Installation of the Pneumatic → For model with plug-in hose connector, remove the collets (white nozzles) from both pilot air ports (if present). Control Unit Type 8690 on process valves of series 21xx Switch cam Switch spindle note! Guide element When mounting on process valves with a welded body, follow the installation instructions in the operating instruc- Groove ring tions for the process valve. - Page 13 Type 8690 Installation 2. install sealing rings note! screw locking paint may contaminate the groove ring. ▶ Do not apply any screw locking paint to the switch spindle. → To secure the switch spindle, apply some screw locking paint Form seal (Loctite 290) in the tapped bore of the spindle extension in the actuator. Pilot air ports → Check that the O-ring is correctly positioned. Caution: → Screw the central screw to the actuator cover (maximum Collets must not be Installation of torque: 5 Nm). fitted ! the form seal → Screw switch spindle onto the spindle extension. To do this, there is a slot on the upper side (maximum torque: 1 Nm). → Position the switch cam on the switch spindle so that the dis- tance between the switch cam and top of the spindle is 10 mm Fig.
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Page 14: Installation Of The Pneumatic Control Unit Type 8690 On Process Valves Of Series 20Xx
Type 8690 Installation Installation of the Pneumatic 3. installation of the pneumatic control unit Control Unit Type 8690 on process valves of series 20xx procedure: Connection 1. install switch spindle pieces Fastening Transparent cap Pilot air screws ports max. 1.5 Nm Position indicator Fig. 9: Installation of the Pneumatic Control Unit, 21xx series →... - Page 15 Type 8690 Installation 2. installation of the cover ring and the pneumatic control 10 mm unit Switch cam Fastening Cover ring Switch spindle screws max. 1.5 Nm Guide element O-ring Plastic part of the switch spindle Spindle (actuator) Fig. 11: Installation of the switch spindle (2), series 20xx Fig. 12: Installation of the cover ring and the Pneumatic Control →...
- Page 16 Type 8690 Installation → Screw the plug-in hose connectors onto the Pneumatic note! Control Unit and the actuator. too high torque when screwing in the fastening screw does → Using the hoses supplied in the accessory kit, make the con- not ensure degree of protection ip65 / ip67. nection between the Pneumatic Control Unit and the actuator ▶ The fastening screws may be tightened to a maximum torque with the following “Tab. 1: Pneumatic connection to actuator”. of 1.5 Nm only. → Attach the Pneumatic Control Unit to the actuator using the note! two side fastening screws. In doing so, tighten the fastening damage or malfunction due to ingress of dirt and moisture.
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Page 17: Rotating The Actuator Module
Type 8690 Installation control function pneumatic connection type 8690 control function pneumatic connection type 8690 with actuator with actuator pilot air outlet pilot air port pilot air outlet pilot air port type 8690 actuator type 8690 actuator lower pilot air port lower pilot air port of the actuator... - Page 18 Type 8690 Installation Process valves Type 2100 and 2100: Only the entire actuator module can be rotated. The Pneumatic Control Unit cannot be rotated contrary to the actuator. The process valve must be in the open position for Actuator alignment of the actuator module. module Danger! Hexagon Key risk of injury from high pressure in the equipment/device. contour Nipple ▶...
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Page 19: Rotating The Pneumatic Control Unit For Process Valves Belonging To Series 20Xx
Type 8690 Installation Rotating the Pneumatic Control Warning! Unit for process valves belonging risk of injury from discharge of medium and pressure. to series 20xx If the direction of rotation is wrong, the body interface may If the connecting cables or hoses cannot be fitted properly following become detached. installation of the process valve, the Pneumatic Control Unit can ▶ Rotate the actuator module in the specified direction only be rotated contrary to the actuator. -
Page 20: Pneumatic Installation
Type 8690 Pneumatic installation Procedure pneumatic installatiOn → Loosen the pneumatic connection between the Pneumatic Danger! Control Unit and the actuator. → Loosen the fastening screws (hexagon socket wrench size risk of injury from high pressure in the equipment/device. 2.5). ▶ Before working on equipment or device, switch off the pressure → Rotate the Pneumatic Control Unit into the required position. and deaerate/drain lines. note! procedure: too high torque when screwing in the fastening screw does →... -
Page 21: Electrical Installation
Type 8690 Electrical installation electrical installatiOn Two kinds of connections are used for the electrical bonding of the Pneumatic Control Unit: • cable gland with cable gland M16 x 1.5 and screw terminals Pilot air port • multi-pole label: 1 with circular plug-in connector M12 x 1, 8-pole. Safety instructions Exhaust air port label: 3 Danger! risk of electric shock. ▶ Before working on equipment or device, switch off the power Fig. 17: Pneumatic connection supply and secure to prevent reactivation. ▶ Observe applicable accident prevention and safety regulations for electrical equipment. Caution: (Exhaust air concept): In compliance with degree of protection IP67, an exhaust air line must be installed in the dry area. -
Page 22: Electrical Installation With Cable Gland
Type 8690 Electrical installation Electrical installation 9.2.1 Connection diagram with micro switches with cable gland (mechanical limit switches) note! Breakage of the pneumatic connection pieces due to rota- terminal Configuration external circuit tional impact. ▶ When unscrewing and screwing the transparent cap, do not hold the actuator of the process valve but the connection... -
Page 23: Connection Diagram
Type 8690 Electrical installation 9.2.2 Connection diagram 9.2.3 Connection diagram with three-wire proximity switches with two-wire proximity switches (inductive NAMUR limit switches) (inductive limit switches) Configu- terminal Configuration external circuit terminal external circuit ration Explosion Non-hazardous INI - ( GND) -
Page 24: Electrical Installation With Circular Plug-In Connector
Type 8690 Electrical installation Electrical installation with pin assignment with micro switches (mechanical limit circular plug-in connector switches) Wire Danger! Configuration external circuit color risk of electric shock. white ▶ Before working on equipment or device, switch off the power Micro switch top Micro switch supply and secure to prevent reactivation. top (NO) ▶ Observe applicable accident prevention and safety regulations Micro switch top green for electrical equipment. - Page 25 Type 8690 Electrical installation 9.3.2 Pin assignment pin assignment with three-wire proximity switches (inductive limit switches) with three-wire proximity switches (inductive limit switches) Wire Configuration external circuit color pin assignment of the circular connector (m12x1, 8-pole): INI Bottom white Output 1...
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Page 26: Adjustment Of The Micro Switch Or The Proximity Switches (Option)
Type 8690 Electrical installation Adjustment of the micro switch or → Check the switching point(s) using suitable measuring equipment. the proximity switches (option) → Close the Pneumatic Control Unit. Danger! Screw for adjustment of the adjustment of the lower risk of electric shock. lower micro switch or the lower micro switch or the ▶ Before working on equipment or device, switch off the power proximity switch proximity switches supply and secure to prevent reactivation. -
Page 27: Maintenance
Type 8690 Maintenance maintenance procedure: → Unlock the quick plug-in connector by pressing the holding The Pneumatic Control Unit is maintenance-free when operated element and pulling out the air intake filter (if necessary, use a according to the instructions in this manual. suitable tool in between the recesses in the head of the filter). 10.1 Service at the air intake filter → Clean the filter or, if necessary, replace the filter. → Check inner O-ring and, if required, clean. Danger! → Insert the air intake filter all the way into the quick plug-in connector. risk of injury from high pressure in the equipment/device. ▶ Before working on equipment or device, switch off the pressure and deaerate/drain lines. Danger! To protect the internal solenoid valves and the actuator, the risk of injury due to improper installation. -
Page 28: Accessories
Type 8690 Accessories accessOries safety pOsitiOns safety positions after failure of the electric or pneumatic aux- designation Order no. iliary energy: safety positions after failure Operating mode designation Connection cable M12 x 1, 8-pole 919061 of the auxiliary energy electrical pneumatic Tab. 7: Accessories Single-acting... -
Page 29: Disassembly
Type 8690 Disassembly disassemBly 13.2 Disassembly the Pneumatic Control Unit 13.1 Safety instructions procedure: 1. pneumatic connection Danger! Danger! risk of injury from high pressure in the equipment/device. ▶ Before working on equipment or device, switch off the pressure risk of injury from high pressure in the equipment/device. and deaerate/drain lines. -
Page 30: Packaging, Transport, Storage
Type 8690 Packaging, transport, storage packaging, transpOrt, Cable gland: → Open the Pneumatic Control Unit: unscrewing the transparent stOrage cap in an anticlockwise direction. note! → Unscrew the screw terminals and pull out cables. transport damages. Inadequately protected equipment may be damaged during 3. mechanical connection transport. → Loosen the fastening screws. ▶ During transportation protect the device against wet and dirt in shock-resistant packaging. → Remove the Pneumatic Control Unit upwards. ▶ Avoid exceeding or dropping below the permitted storage Transparent cap temperature. - Page 31 Type 8690 english...
- Page 33 www.burkert.com...
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