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Summary of Contents for Burkert 8697
- Page 1 Type 8697 Pneumatic Control Unit Pneumatische Ansteuerung Unité de commande pneumatique Operating Instructions Bedienungsanleitung Manuel d‘utilisation...
- 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, 2011 - 2018 Operating Instructions 1805/05_EU-ml_00810081 / Original DE...
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Page 3: Table Of Contents
Type 8697 1. OPERATING INSTRUCTIONS ....... 4 7.2. Installation on process valves of series 21xx ....12 7.3. Installation on process valves of series 20xx ....15 1.1. Symbols ................4 7.4. Rotating the actuator module ......... 18 1.2. Definition of term / abbreviation ........4 7.5. Rotating the Pneumatic Control Unit for process valves 2. AUTHORIZED USE ..............5 belonging to series 20xx ............19 2.1. Designs with explosion protection ........5 7.6. Manual actuation of the actuator via pilot valve ..... -
Page 4: Operating Instructions
Designates a procedure which you must carry out. WARNING! 1.2. Definition of term / abbreviation Warns of a potentially dangerous situation. The term “device” used in these instructions always stands for ▶ Failure to observe the warning may result in serious injuries the Pneumatic Control Unit Type 8697. or death. The abbreviation “Ex” used in these instructions always stands for “explosion-protected”. english... -
Page 5: Authorized Use
Type 8697 Authorized use AUTHORIZED USE 2.1. Designs with explosion protection DANGER! Non-authorized use of the Pneumatic Control Unit Type 8697 may be a hazard to people, nearby equipment and the Explosion hazard. environment. Improper use in a potentially explosive atmosphere represents • The device is designed to be mounted on pneumatic actua- an explosion hazard. tors of process valves for the control of media. ▶ Observe the information in the EC Declaration of Conformity • Do not expose the device to direct sunlight. -
Page 6: Basic Safety Instructions
▶ Observe applicable accident prevention and safety regulations ▶ Do not put any loads on the body (e.g. by placing objects on for electrical equipmen. it or standing on it). ▶ Do not make any external modifications to the device bodies. ▶ The device may be operated only with the transparent hood closed. The Pneumatic Control Unit Type 8697 was developed with due consideration given to the accepted safety rules and is state-of-the-art. Nevertheless, dangerous situations may occur. english... -
Page 7: General Information
GENERAL INFORMATION DESCRIPTION OF SYSTEM 5.1. Configuration and function 4.1. Contact address The Pneumatic Control Unit Type 8697 can control single or double- Germany Bürkert Fluid Control Systems acting process valves. The Pneumatic Control Unit Type 8697 has Sales Center been optimized for integrated, modular installation on process Christian-Bürkert-Str. 13-17 valves of the 21xx series (Element actuator size ∅ 50). The module D-74653 Ingelfingen configuration permits a variety of expansion steps. - Page 8 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 8697 to be attached to process valves belonging to the 20xx series. Option: Electrical position feedback This model has a different pneumatic connection module so that Optionally mechanical limit switches (micro switches) or inductive the pilot air ports can be connected to the outside of the actuator.
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Page 9: Technical Data
Type 8697 Technical data TECHNICAL DATA 6.4. Operating conditions WARNING! 6.1. Conformity Solar radiation and temperature fluctuations may cause In accordance with the EU Declaration of conformity, the Pneu- malfunctions or leaks. matic Control Unit Type 8697 is compliant with the EU Directives ▶ If the device is used outdoors, do not expose it unprotected (if applicable). to the weather conditions. -
Page 10: Mechanical Data
Control medium n eutral gases, air, Quality classes in 6.6. Type label (example) accordance with DIN ISO 8573-1 Type; Features of the type D ust content Class 7 max. particle size 40 μm, code applicable to UL and ATEX max. particle density 10 mg/m 8697 -*-I2-E1-* PE51 Control function; pilot valve; Water content Class 3 max. pressure dew point -20 °C or single act pilot0.6 24V supply voltage pilot valve Pmax 7bar min. 10 °C below the lowest sw.ind.3wire PNP REV.2 Tamb 0 - +55°C... -
Page 11: Electrical Data
Type 8697 Technical data 6.9. Electrical data Proximity switches 3 -wire PNP 10...30 V DC max. 100 mA per Connections C able gland M16 x 1.5, wrench size 19 proximity switch (clamping area 4...8 mm) 2-wire 24 V DC normally open 10...30 V DC with screw terminals max. 100 mA, min. 3 mA per proximity switch, for cable cross-sections 0.14...1.5 mm² Voltage drop< 5 V Residual current < 0,6 mA Circular plug-in connector M12 x 1, 8-pole 2-wire NAMUR 8,2 V DC, 1,2/2,1 mA (actuated/not actuated) UL: NEC Class 2 Supply voltage P ilot valve 2 4 V DC ± 10 %, residual ripple 10 % Position feedback (option) UL: NEC Class 2, 24 V DC, 1 W P rotection class 3 acc. to DIN EN 61140 (VDE Power consumption... -
Page 12: Installation
Type 8697 Installation INSTALLATION 7.2. Installation on process valves of series 21xx Only for Pneumatic Control Unit without pre-assembled process valve. Procedure: 7.1. Safety instructions 1. Install switch spindle DANGER! Transparent cap Risk of injury from high pressure in the equipment/device. - Page 13 Type 8697 Installation Switch spindle NOTE! Switch cam Screw locking paint may contaminate the groove ring. ▶ Do not apply any screw locking paint to the switch spindle. Spacer sleeve Groove ring Maximum → To secure the switch spindle, apply some screw locking paint distance Guide element (Loctite 290) in the tapped bore of the spindle extension in the max. 1 Nm actuator. → max. 5 Nm Check that the O-ring is correctly positioned. → Actuator cover Screw the guide element to the actuator cover (maximum torque: 5 Nm). O-ring → Screw switch spindle onto the spindle extension. To do this, Spindle extension there is a slot on the upper side (maximum torque: 1 Nm).
- Page 14 Type 8697 Installation 2. Install sealing rings 3. Installation of the Pneumatic Control Unit Pilot air ports Caution: Collets must not be fitted ! Supports Fastening screws Pilot air Form seal max. 0,5 Nm ports Fig. 9: Installation of the Pneumatic Control Unit, 21xx series → Align the Pneumatic Control Unit until the supports of the Pneu- matic Control Unit can be inserted into the pilot air ports of the Installation of actuator (see also “Fig. 9”).
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Page 15: Installation On Process Valves Of Series 20Xx
Type 8697 Installation 7.3. Installation on process valves of Switch spindle series 20xx Switch cam Spacer sleeve Procedure: Maximum distance Groove ring 1. Install switch spindle Guide element Transparent cap O-ring Position indicator Actuator cover Plastic part of the switch spindle Spindle (actuator) Actuator Fig. 11: Installation of the switch spindle (2), series 20xx →... - Page 16 Type 8697 Installation 2. I nstallation of the Pneumatic Control Unit NOTE! Too high torque when screwing in the fastening screw does Fastening not ensure degree of protection IP65 / IP67. screws ▶ The fastening screws may be tightened to a maximum torque max. 0.5 Nm of 0.5 Nm only. → Attach the Pneumatic Control Unit to the actuator using the two side fastening screws. In doing so, tighten the fastening screws...
- Page 17 “In rest position” means that the pilot valves of the Pneu- actuator Process valve open matic Control Unit Type 8697 are isolated or not actuated. in rest position should be con- (by spring force) nected to the If the ambient air is humid, a hose can be connected lower pilot air port...
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Page 18: Rotating The Actuator Module
Type 8697 Installation 7.4. Rotating the actuator module DANGER! The actuator module (Pneumatic Control Unit and actuator) Risk of injury from high pressure in the equipment/device. can be rotated for straight seat valves and angle seat ▶ Before working on equipment or device, switch off the pressure valves only. and deaerate/drain lines. -
Page 19: Rotating The Pneumatic Control Unit For Process Valves Belonging To Series 20Xx
Type 8697 Installation Open-end wrench Pneumatic Fastening Control Unit screw (2x) Pneumatic connection Actuator Fig. 15: Rotating with open-end wrench 7.5. Rotating the Pneumatic Control Fig. 16: Rotating the Pneumatic Control Unit, series 20xx Unit for process valves belonging to series 20xx... -
Page 20: Manual Actuation Of The Actuator Via Pilot Valve
Type 8697 Installation 7.6. Manual actuation of the actuator Move actuator to end position via pilot valve → Turn the hand lever to the right using a screwdriver. Note: Do not press the hand lever when turning it The actuator can be moved without a power supply from the rest position to its end position and back again, when the control air is connected. To do this, the pilot valve must be actuated with a screwdriver. Move actuator back to the rest position → NOTE! Turn the hand lever to the left using a screwdriver. The hand lever may be damaged if it is simultaneously pressed and turned. -
Page 21: Fluid Installation
Type 8697 Fluid installation 8.2. FLUID INSTALLATION Installing the process valve Thread type and dimensions can be found in the corresponding The dimensions of the Pneumatic Control Unit and the different data sheet. complete device models, consisting of Pneumatic Control Unit, → actuator and valve, can be found in the relevant data sheets. Connect the valve according to the operating instructions for the valve. 8.1. Safety instructions 8.3. -
Page 22: Electrical Installation
Type 8697 Electrical installation ELECTRICAL INSTALLATION Two kinds of connections are used for the electrical bonding of the Pneumatic Control Unit: • Cable bushing with cable gland M16 x 1.5 and screw-type terminals Pilot air port • Multi-pole label: 1 with circular plug-in connector M12 x 1, 8-pole. 9.1. Safety instructions Exhaust air port label: 3 DANGER! Fig. 18: Pneumatic connection Risk of electric shock. -
Page 23: Electrical Installation With Cable Gland
Type 8697 Electrical installation NOTE! Risk of injury from unintentional activation of the system and an uncontrolled restart. Damage or malfunction due to penetration of dirt and ▶ Secure system from unintentional activation. humidity. ▶ Following installation, ensure a controlled restart. To ensure degree of protection IP65 / IP67: ▶ Tighten the union nut on the cable gland according to the cable 9.2. - Page 24 Type 8697 Electrical installation 9.2.1. Connection diagram 9.2.2. Connection diagram with micro switches with 3-wire proximity switches (inductive limit switches) (mechanical limit switches) Terminal Configuration External circuit Terminal Configuration External circuit INI + ( 24 V DC) Output 1 Supply (24 V) Micro switch...
- Page 25 Type 8697 Electrical installation 9.2.3. Connection diagram with 2-wire proximity switches Screw terminals (inductive NAMUR limit switches) Configu- Terminal External circuit ration Explosion Non-hazardous INI Top + protected area area 1 / 3 Fig. 22: Position of the screw terminals INI Top - +8,2 V DC 2 / 4 9.2.4. Connection diagram with 2-wire...
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Page 26: Electrical Installation With Circular Plug-In Connector
Type 8697 Electrical installation Pin assignment Screw terminals with 3-wire proximity switches (inductive limit switches) Fig. 24: Circular connector M12x1, 8-pole Wire Fig. 23: Position of the screw terminals Configuration External circuit color INI Bottom white Output 1 Output (24 V) 9.3. -
Page 27: Display Elements: End Position Leds
Type 8697 Electrical installation 9.4. Display elements: End position 9.4.1. Display elements LEDs LEDs Version Version Version with 2-wire with 3-wire with 2-wire proximity switches LED Top proximity proximity by NAMUR (Ex LED Bottom switches switches version) LED Top position top... -
Page 28: Adjustment Of The Micro Switches Or The Proximity Switches (Option)
Type 8697 Electrical installation 9.5. Adjustment of the micro switches or 9.4.2. Display elements LEDs REV.2 the proximity switches (option) Version Version Version with with 3-wire with 2-wire 2-wire prox- DANGER! proximity proximity imity switches Risk of electric shock. switches... -
Page 29: Safety Positions
Type 8697 Safety Positions SAFETY POSITIONS The switch cams (and switch points) have now been set. → Check the switching point(s) using suitable measuring Safety positions after failure of the electric or pneumatic auxiliary equipment. energy: → If required, the switch points can still be finely adjusted: Using a Safety positions after failure screwdriver, push switch cams towards the middle (see “Fig. 27”). Operating mode Designation of the auxiliary energy →... -
Page 30: Disassembly
Type 8697 Disassembly DISASSEMBLY 12.2. Disassembly the Pneumatic Control Unit 12.1. 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 31: Packaging, Transport, Storage
Type 8697 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. - Page 33 www.burkert.com...
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