Burkert 8762 Operating Instructions Manual
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Burkert 8762 Operating Instructions Manual

Electronic pressure controller
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Type 8762
Electronic pressure controller
Operating Instructions

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Summary of Contents for Burkert 8762

  • Page 1 Type 8762 Electronic pressure controller Operating Instructions...
  • Page 2 We reserve the right to make technical changes without notice. © Bürkert SAS, 2024 Operating Instructions 2403/00 00574776 / Original EN...

  • Page 3: Table Of Contents

    Type 8762 Table of contents TABLE OF CONTENTS 1 About this document.......................... 6 Manufacturer............................. 6 Symbols ............................ 6 Terms and abbreviations ........................ 7 2 Safety ................................ 8 Intended use ............................. 8 Safety instructions .......................... 8 3 Product description .......................... 11 Product overview .......................... 11 Product identification ........................ 12 3.2.1 Type label .......................... 12 3.2.2...
  • Page 4 Type 8762 Table of contents Wire the variant Profibus......................... 23 Connect the functional earth...................... 25 7 Commissioning............................ 26 Commissioning procedure...................... 26 8 Configuration with Bürkert Communicator ..................... 27 Setting tools ............................ 27 Connect to the Bürkert Communicator................... 27 Functions ............................ 28 8.3.1 Shut-off threshold...................... 28 Zero point adjustment........................ 29 Set-point sources and operation modes .................. 29 Optimise the closed-loop control parameters ................ 30...
  • Page 5 Type 8762 Table of contents 13.3 Disposal ............................ 42...

  • Page 6: About This Document

    Before starting any work on the product, read and observe the respective sections of the document. Keep the document available for reference and give it to the next user. Contact the Bürkert sales office for any questions. Further information concerning the product at country.burkert.com. Manufacturer Bürkert SAS...

  • Page 7: Terms And Abbreviations

    Type 8762 About this document Terms and abbreviations The terms and abbreviations are used in this document to refer to following definitions. Device Type 8762 Electronic pressure controller büS Bürkert system bus, a communication bus developed by Bürkert and based on the...

  • Page 8: Safety

    Type 8762 Safety SAFETY Intended use The device EPC is designed to measure and regulate the pressure. The permitted media are listed in Technical data [} 16]. Prerequisites for safe and trouble-free operation are correct proper transportation, storage, installation, start-up, operation and maintenance.
  • Page 9 Type 8762 Safety Meet the requirements specified by EN 61340-5-1 to minimise or avoid the possibility of damage caused by a sudden electrostatic discharge. Do not touch electronic components when the supply voltage is connected. Electric shock due to electrical components Touching live parts can result in severe electric shock.
  • Page 10 Type 8762 Safety Medium under pressure Medium under pressure can seriously injure people. In the event of overpressure or pressure surges, the device or lines can burst. Pneumatic lines that are defective or not securely fastened can come loose and swing around.

  • Page 11: Product Description

    Type 8762 Product description PRODUCT DESCRIPTION The device is used for ultimate precision in the pressure control. This document describes following variant: EPC büS with proportional valve EPC Profibus with proportional valve Product overview EPC PROFIBUS 1. Screw 2. Cover 3.

  • Page 12: Product Identification

    Type 8762 Product description Product identification 3.2.1 Type label Fig. 1: Example of type label Type 8762 1 Type 2 Operating voltage 3 Power consumption 4 Note: Observe the operating instructions 5 Bürkert internal version 6 Sealing material 7 Maximum operating pressure...

  • Page 13: Conformity Marking

    Type 8762 Product description 3.2.3 Conformity marking Fig. 3: Conformity label 1 CE marking 2 Certification marking for USA and/or Canada 3 Warning: hot surface 4 Indication for disposal 3.2.4 Symbols and markings on device Earth terminal Direct current Display elements 3.3.1...

  • Page 14: Functionality

    To get a list of the stored data, refer to the file Device Description File that can be downloaded from country.burkert.com. If the inserted memory card is empty, then the device loads its own data on the memory card. A new memory card is empty.
  • Page 15 This functionality has to be activated in the Bürkert communicator under General settings > Parameter > Act as a configuration client > Yes. For detailed information, refer to the Operating Instructions "Central configuration management of Bürkert devices" that can be downloaded from country.burkert.com.

  • Page 16: Technical Data

    Type 8762 Technical data TECHNICAL DATA Standards and directives The device complies with the valid EU harmonisation legislation. In addition, the device also complies with the requirements of the laws of the United Kingdom. The harmonised standards that have been applied for the conformity assessment procedure are listed in the current version of the EU Declaration of Conformity/UK Declaration of Conformity.

  • Page 17: Mechanical Data

    Type 8762 Technical data Electrical connections M12 plug 5-pin A-coding Minimum temperature rating of the 75 °C cable to be connected to the field wiring terminals: EPC PROFIBUS Operating voltage 24 V DC ±10 % Power consumption Refer to type label Communication interface...

  • Page 18: Medium Connection

    Type 8762 Medium connection MEDIUM CONNECTION Risk of injury or material damage when working on the device or system. Read and observe the chapter Safety [} 8] before working on the device or system. Possible medium connections G-internal-threaded connections according to DIN ISO228/1 NPT-internal-threaded connections according to ASME/ ANSI B 1.20.1...

  • Page 19: Npt-Internal-Threaded Connections

    Type 8762 Medium connection Fig. 4: Pipe cut and deburred Remove the protective cap that closes the threaded connection. ferule Fig. 5: Nut and ferrule on the pipe Slide the nut [A] and then the ferrule onto the pipe. Place the seal [C] on the medium connection.

  • Page 20: Flange Connections

    Type 8762 Medium connection Cut the pipe squarely [1] and deburr [2]. Fig. 8: Pipe cut and deburred Remove the protective cap that closes the threaded connection. Slide the nut and then the ferrule onto the pipe. Connect the medium on one side of the device.

  • Page 21: Connections With External-Threaded Compression Fittings

    Type 8762 Medium connection 5.2.5 Connections with external-threaded compression fittings Do the medium connection on one side of the device. Obey the instructions that are given by the manufacturer of the fitting used. CAUTION! To avoid damage on the sealing of the medium connection, please make sure to lock the hexagonal part in place with a second wrench.

  • Page 22: Electrical Connection

    Safety [} 8] before working on the device or system. Additional documentation For more information on büS, read the cabling guide that is available at country.burkert.com. Device description file and object description for the related Type (download from country.burkert.com). Device specific help in the Bürkert Communicator software.

  • Page 23: Wire The Variant Profibus

    Type 8762 Electrical connection Colour of the büS cable conductor Signal white CAN_H blue CAN_L Tab. 2: Signals of the büS cable conductors NOTICE! If an own mating female connector is used, then observe the following requirements for the correct op- eration of the device.
  • Page 24 Type 8762 Electrical connection NOTICE! UL approved versions must be supplied in one of the following ways: "Limited Energy Circuit" (LEC), according to UL / IEC61010-1 "Limited Power Source" (LPS), according to UL / IEC60950 SELV / PELV with UL-approved overcurrent protection, designed according to UL / IEC61010-1, Table 18 (e.g.

  • Page 25: Connect The Functional Earth

    Type 8762 Electrical connection Connect the functional earth WARNING! Risk of ignition and risk of fire that are due to electrostatic discharge. An electrostatic discharge of the device can ignite combustible gas vapours. To avoid a build up of electrostatic charge, connect the housing to the functional earth.

  • Page 26: Commissioning

    Type 8762 Commissioning COMMISSIONING Risk of injury or material damage when working on the device or system. Read and observe the chapter Safety [} 8] before working on the device or system. Commissioning procedure Pressurise the pipes with medium. Flush the pipes with medium at the calibration pressure.

  • Page 27: Configuration With Bürkert Communicator

    PROFIBUS variant Use the USB-büS-Interface set with article number 00772551. Download the latest version of the Type 8920 Bürkert Communicator from country.burkert.com. Install the Bürkert Communicator on a PC. During installation, the büS stick must not be inserted at the Assemble the parts of the USB-büS-Interface set.

  • Page 28: Functions

    / CANopen variant Use the USB-büS-Interface set with article number 00772426. Download the latest version of the Type 8920 Bürkert Communicator from country.burkert.com. Install the Bürkert Communicator on a PC. During installation, the büS stick must not be inserted at the Insert the micro-USB plug into the büS stick.

  • Page 29: Zero Point Adjustment

    Type 8762 Configuration with Bürkert Communicator Measuring span <= 2% limit=Measuring span * 0,75 Tab. 7: Increasing setpoint When the shut-off threshold is deactivated (zero) and Used set-point value = 0 , the controller stays in closed loop control until Actual value flow (filtered only by x-filter control input) < Measuring span * 0,25 Zero point adjustment The zero point adjustment is done by the manufacturer.

  • Page 30: Optimise The Closed-Loop Control Parameters

    On a büS/CANopen variant it is possible to alternatively change the related object. Refer to the related pro- cedure in the device-specific help in the documentation of the initiation files. Download the initiation files and the related documentation at country.burkert.com. The setting of the parameter...

  • Page 31: Set-Point Values Without Communication

    Type 8762 Configuration with Bürkert Communicator The possible choices for the parameter Set-point value source are: Variant büS/CANopen: Automatic: the set-point value is set via the fieldbus. Manual set-point value: to manually give in a set-point value for testing purposes or to make sure that the set-point value is not overwritten by other fieldbus participants.

  • Page 32: Maintenance

    Type 8762 Maintenance MAINTENANCE If the device is operated according to the Operating instructions, then the device is maintenance-free. Risk of injury or material damage when working on the device or system. Read and observe the chapter Safety [} 8] before working on the device or system.

  • Page 33: Replace The Memory Card

    Type 8762 Maintenance Send the device back to the manufacturer because it must be replaced and recalibrated. Observe the re- turn procedure given in Return [} 42] Replace the memory card Applicable for: PROFIBUS variant De-energise the device. With a TX8 screwdriver loosen the screws of the cover. Remove the cover.
  • Page 34 This functionality has to be activated in the Bürkert communicator under General settings > Parameter > Act as a configuration client > Yes. For detailed information, refer to the Operating Instructions "Central configuration management of Bürkert devices" that can be downloaded from country.burkert.com.

  • Page 35: Troubleshooting

    Type 8762 Troubleshooting TROUBLESHOOTING 10.1 Status indicator is red EPC PROFIBUS Cause Solution The supply voltage is out of the error Operate the device within the specifications. If the status in- range. The device can be damaged. dicator is still red, then send the device back to Bürkert.

  • Page 36: Status Indicator Is Yellow

    Type 8762 Troubleshooting EPC büS/CANopen Cause Solution The device is connected to büS and Wait until the device has found assigned fieldbus parti- searches assigned fieldbus participant. cipants. The device is connected to büS and is Wait up to one minute until the device assigns its address.

  • Page 37: Status Indicator Is Blue

    Type 8762 Troubleshooting 10.4 Status indicator is blue Cause Solution Error in the internal memory. Contact the manufacturer, because maintenance is needed. 10.5 Status indicator is off Cause Solution The device is not energised. Make sure that the device is correctly wired.

  • Page 38: Unstable Measured Value

    Type 8762 Troubleshooting 10.9 Unstable measured value Cause Solution Functional earth (FE) is not connected To connect the functional earth, use a green-and-yellow properly. cable that is as short as possible. And the cable cross-sec- tion must be at least equal to the cross section of the power-supply cable.

  • Page 39: Spare Parts And Accessories

    Type 8762 Spare parts and accessories SPARE PARTS AND ACCESSORIES CAUTION! Risk of injury, property damage due to incorrect parts. Incorrect options and unsuitable spare parts can cause injuries to people and damage to the appliance and its surroundings. Only use original options and original spare parts from Bürkert.

  • Page 40: Compression Fittings For A Device With G-Internal-Threaded Connections

    Type 8762 Spare parts and accessories Connection cable with M12 female connector (A-coded) and free cable 560 365 end, 5 m Connection cable with M12 female connector (A-coded) and free cable 563 108 end, 10 m Straight 5-pin M12 male connector (B coding)

  • Page 41: Uninstallation

    Type 8762 Uninstallation UNINSTALLATION 12.1 Dismantling Relieve the medium pressure in the installation. Flush the device with a neutral medium (for example nitrogen) Relieve the flushing medium pressure in the installation. De-energise the device. Remove the electrical wiring. Disconnect the medium connections.

  • Page 42: Logistics

    Type 8762 Logistics LOGISTICS 13.1 Transport and storage Protect the device against moisture and dirt in the original packaging during transportation and storage. Avoid UV radiation and direct sunlight. Protect connections from damage with protective caps. Observe permitted storage temperature.

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