Page 1 Type 8792, 8793 Electropneumatic positioner and process controller Operating Instructions...
Page 2 We reserve the right to make technical changes without notice. Technische Änderungen vorbehalten. Sous resérve de modification techniques. © Bürkert Werke GmbH & Co. KG, 2009 - 2017 Operating Instructions 1706/06_EN-en_00806089 / Original DE...
Page 3: Table Of Contents
Type 8792, 8793 Contents able of conTenTs GENERAL INFORMATION AND SAFETY INSTRUCTIONS.....................5 Operating.instructions................................6 Authorized.use..................................7 Basic.safety.instructions..............................8 General.information................................9 DESCRIPTION OF SYSTEM..................................10 Description.and.features.of.the.Type.8792/8793....................12 Structure....................................16 Positioner.Type.8792.................................18 Process.controller.Type.8793............................22 Interfaces.of.the.positioner./.process.controller....................26 Technical.data..................................27 10.. Accessories.....................................32 11..
Page 4 Type 8792, 8793 Contents 24.. Activation.of.the.process.controller...........................78 25.. Basic.setting.of.the.process.controller........................79 AUXILIARY FUNCTIONS...................................98 Configuring.the.auxiliary.functions..........................99 26.. OPERATING STRUCTURE / FACTORY SETTINGS........................ 168 Operating.structure.and.factory.settings......................169 27.. PROFIBUS DP......................................184 28.. Description.of.the.PROFIBUS.DP..........................185 29.. Electrical.connections..............................187 30..
Page 5: General Information And Safety Instructions
Type 8792, 8793 General information and safety instructions onTenTs OPERATING.INSTRUCTIONS.................................6 1.1.. Symbols.......................................6 1.2.. Definition.of.the.term.“device”............................6 AUTHORIZED.USE....................................7 2.1.. Restrictions....................................7 BASIC.SAFETY.INSTRUCTIONS..............................8 GENERAL.INFORMATION.................................9 4.1.. Scope.of.supply..................................9 4.2.. Contact.address..................................9 4.3.. Warranty.......................................9 4.4.. Master.code....................................9 4.5.. Information.on.the.internet..............................9 english...
Page 6: Operating.instructions
→ designates a procedure that must be carried out. 1.2. Definition of the term “device” In these instructions, the term “device” always refers to the Type 8792/8793 english...
Page 7: Authorized.use
▶ Correct transportation, correct storage and installation and careful use and maintenance are essential for reli- able and faultless operation. ▶ Use the Type 8792 and 8793 only as intended. 2.1. Restrictions If exporting the system/device, observe any existing restrictions.
Page 8: Basic.safety.instructions
• Also ensure that you do not touch electronic components when the operating voltage is present. The Type 8792/8793 were developed with due consideration given to the accepted safety rules and are state-of-the-art. Nevertheless, dangerous situations may occur.
Page 9: General.information
And also on the internet at: www.burkert.com 4.3. Warranty The warranty is only valid if the Type 8792/8793 are used as intended in accordance with the specified application conditions. 4.4. Master code Operation of the device can be locked via a freely selectable user code. In addition, there is a non-changeable master code with which you can perform all operator actions on the device.
Page 10: Description Of System
5.1.1. Features ..............................12 5.1.2. Combination with valve types and mounting versions ..............13 5.1.3. Overview of the mounting options.......................14 5.2.. Designs.....................................15 5.2.1. Type 8792, positioner ..........................15 5.2.2. Type 8793, process controller ......................15 5.2.3. Typ 8793, Remote-Design ........................15 STRUCTURE......................................16 6.1.. Representation..................................16 6.2..
Page 11 Types 8792, 8793 Description of System 10.7.. Electrical.data..................................29 10.8.. Pneumatic.data..................................30 10.9.. Safety.end.positions.after.failure.of.the.electrical.or.pneumatic.auxiliary.power......31 10.10.. F actory.settings..................................32 11.1.. Communications.software..............................32 english...
Page 12: Description.and.features.of.the.type.8792/8793
DESCRIPTION AND FEATURES OF THE TYPE 8792/8793 5.1. General description The positioner Type 8792 / process controller Type 8793 is a digital, electro-pneumatic positioner for pneumati- cally actuated continuous valves. The device incorporates the main function groups - Position sensor - Electro-pneumatic control system - Microprocessor electronics The position sensor measures the current positions of the continuous valve.
Page 13: Combination With Valve Types And Mounting Versions
Type 8792/8793 is mounted directly on the actuator or attached to the side. Device.version.Remote:. An extern position sensor (linear or rotative) via a digital interface. The Type 8792/8793 is attached to a wall either with a DIN rail or with a mounting bracket (remote design). english...
Page 14: Overview Of The Mounting Options
Types 8792, 8793 Description of System 5.1.3. Overview of the mounting options Mounting NAMUR on rotary actuator Mounting NAMUR with mounting bracket on a linear actuator Remote mounting with mounting bracket Remote mounting with DIN rail Table 1: Overview of the mounting options english...
Page 15: Designs
Types 8792, 8793 Description of System 5.2. Designs 5.2.1. Type 8792, positioner The position of the actuator is regulated according to the position set-point value. The position set-point value is specified by an external standard signal (or via field bus). 5.2.2. Type 8793, process controller Type 8793 also features a PID controller which, apart from actual position control, can also be used to implement process control (e.g.
Page 16: Structure
Description of System STRUCTURE The positioner Type 8792 and process controller Type 8793 consist of the micro-processor controlled electronics, the position sensor and the control system. The device is designed using three-wire technology. Operation is controlled by four keys and a 128x64 dot matrix graphics display.
Page 17: Function.diagram
6.2. Function diagram 6.2.1. Diagram illustrating single-acting actuator The black lines in “Figure 2” specify the function of the positioner circuit in Type 8792. The grey part of the diagram indicates the additional function of the superimposed process control circuit in Type 8793. Compressed- Continuous.valve.with..
Page 18: Positioner.type.8792
(Xd1), the actuator is aerated and deaerated via the control system. In this way the position of the actuator is changed until control difference is 0. Z1 represents a disturbance variable. Valve opening Position set- Positioner Control system Continuous point value Solenoid valves valve Position sensor Position control circuit Figure 3: Position control circuit in Type 8792 english...
Page 19: Schematic.representation.of.the.position.control
Types 8792, 8793 Description of System 7.1. Schematic representation of the position control Figure 4: Schematic representation of position control english...
Page 20: Positioner.software
Types 8792, 8793 Description of System 7.2. Positioner software Configurable.auxiliary.functions Effect Correction line to adjust the operating characteristic Selection of the transfer characteristic between input signal and stroke (correction characteristic) CHARACT Sealing function Valve closes tight outside the control range. Specification...
Page 21 Types 8792, 8793 Description of System Configurable.auxiliary.functions Effect Setting display Adjustment of the display of the process level EXTRAS SERVICE For internal use only POS.SENSOR Setting interface remote position sensor (available for Type 8793 Remote only. See chapter “5.2.3. Typ 8793, Remote-Design”.
Page 22: Process.controller.type.8793
Types 8792, 8793 Description of System PROCESS CONTROLLER TYPE 8793 In the case of process controller Type 8793 the position control mentioned in Chapter “7” becomes the subor- dinate auxiliary control circuit; this results in a cascade control. The process controller in the main control circuit of Type 8793 has a PID function.
Page 23: Schematic.representation.of.process.control
Types 8792, 8793 Description of System 8.1. Schematic representation of process control Figure 6: Schematic representation of process control english...
Page 24: The.process.controller.software
Types 8792, 8793 Description of System 8.2. The process controller software Configurable.auxiliary.functions Effect Correction line to adjust the operating characteristic Selection of the transfer characteristic between input signal and stroke (correction characteristic) CHARACT Sealing function Valve closes tight outside the control range. Specification...
Page 25 Types 8792, 8793 Description of System Configurable.auxiliary.functions Effect SERVICE For internal use only Simulation software For simulation of the device functions SIMULATION DIAGNOSE (Option) Monitoring of processes POS.SENSOR Setting interface remote position sensor (available for Type 8793 Remote only. See chapter “5.2.3. Typ 8793, Remote-Design”.
Page 26: Interfaces.of.the.positioner./.Process.controller
Optional inputs and outputs are illustrated by dotted lines Figure 7: Interfaces of the positioner / process controller The Types 8792 and 8793 are 3-wire devices, i.e. the power (24 V DC) is supplied separately from the set-point value signal. * only for process controller Type 8793...
Page 27: Technical.data
10. TECHNICAL DATA 10.1. Conformity In accordance with the Declaration of conformity, Type 8792 / 8793 is compliant with the EC Directives. 10.2. Standards The applied standards which are used to demonstrate compliance with the EC Directives are listed in the EC-Type Examination Certificate and/or the EC Declaration of Conformity.
Page 28: Type.label
Explanation.of.the.device-specific.specifications.on.the.type.label: Example: Operating voltage Nominal power Device variant Type (NAMUR/Remote, 24 V DC/ PROFIBUS DP) 8792 24V DC 5W NAMUR Profibus DP Supply pressure, Degree of protection P=1.4…7bar IP65/67 Ambient temperature Tamb -10..+60°C CE marking Approval mark CSA (for Canada...
Page 29: Electrical.data
Types 8792, 8793 Description of System 10.7. Electrical data Connections 2 cable glands (M20 x 1.5) with screw-type terminals 0.14 – 1.5 mm circular plug-in connector Operating voltage 24 V DC ± 10% max. residual ripple 10% Power consumption < 5 W Input data for actual value signal 180 Ω...
Page 30: Pneumatic.data
Types 8792, 8793 Description of System 10.8. Pneumatic data Control medium Neutral gases, air Quality classes in accordance with DIN ISO 8573-1 Dust content Class 7, max. particle size 40 µm, max. particle density 10 mg/m³ Water content Class 3, max. pressure dew point - 20 °C or min. 10 degrees below the...
Page 31: Safety.end.positions.after.failure.of.the.electrical.or.pneumatic.auxiliary.power
Types 8792, 8793 Description of System 10.9. Safety end positions after failure of the electrical or pneumatic auxiliary power The safety end position depends on the pneumatic connection of the actuator to the working connections A1 or Safety.end.positions.after.failure.of.the Actuator.system Designation pneumatic.. electrical.auxiliary.power auxiliary.power down single-acting → Connection according to “Figure 9”...
Page 32: Accessories
Communicator www.burkert.com Table 10: Accessories Other accessories can be found on the data sheet for Type 8792/8793. www.burkert.com 11.1. Communications software The PC operating program “Communicator” is designed for communication with the devices from the Bürkert posi- tioner family. Devices constructed since August 2014 support the full range of functions. If you have any questions regarding compatibility, please contact the Bürkert Sales Center.
Page 33: Installation
13.. PNEUMATIC.CONNECTION.................................47 13.1.. Safety.instructions................................47 ELECTRICAL.CONNECTION.-.. 14.. CIRCULAR.PLUG-IN.CONNECTOR.VERSION.(MULTI-POLE.VERSION)..............49 14.1.. Type.8792.-.designation.of.the.circular.plug-in.connectors.................49 14.2.. Connection.of.the.positioner.Type.8792.........................50 14.2.1. X1 - M12, 8-pole circular connector ..................50 14.2.2. X4 - M8, 4-pole socket (for binary outputs option only) Output signals to the control centre (e.g. PLC)................50 14.3..
Page 34 Type 8792, 8793 Installation 15.. ELECTRICAL.CONNECTION.-.TERMINAL.VERSION.FOR.CABLE.GLAND............53 15.1.. Connection.board.of.the.Type.8792/8793.with.screw-type.terminals............53 15.2.. Terminal.assignment.for.cable.gland.-.positioner.Type.8792..............54 15.2.1. Input signals from the control centre (e.g. PLC) ...............54 15.2.2. Output signals to the control centre (e.g. PLC) (required for analogue output and/or binary output option only) ..........54 15.2.3.
Page 35: Attachment.and.assembly
Type 8792, 8793 Installation 12. ATTACHMENT AND ASSEMBLY The dimensions of the Type 8792/8793 and the different device versions can be found on the data sheet. 12.1. Safety instructions: WARNING! Risk.of.injury.from.improper.installation. ▶ Installation may be carried out by authorised technicians only and with the appropriate tools.
Page 36: Attachment.to.a.continuous.valve.with.linear.actuators.according.to.namur
Type 8792, 8793 Installation 12.2. Attachment to a continuous valve with linear actuators according to NAMUR The valve position is transferred to the position sensor installed in the positioner via a lever (according to NAMUR). 12.2.1. Attachment kit for linear actuators (serial no. 787 215) (Can be purchased as an accessory from Bürkert). Part.no. Quantity Name NAMUR mounting bracket IEC 534...
Page 37: Installation
Type 8792, 8793 Installation 12.2.2. Installation WARNING! Risk.of.injury.from.improper.installation. ▶ Installation may be carried out by authorised technicians only and with the appropriate tools. Risk.of.injury.from.unintentional.activation.of.the.system.and.an.uncontrolled.restart. ▶ Secure system from unintentional activation. ▶ Following assembly, ensure a controlled restart. Procedure: ③ ⑰...
Page 38 The swingmovement of the lever must be within the position sensor rotation range of 180°. Figure 14: Swing range of the lever → Attach lever to the shaft of the Type 8792/8793 and screw tight. english...
Page 39: Attaching Mounting Bracket
⑪ washers (see “Figure 15”). The selection of the M8 thread used on the Type 8792/8793 depends on the size of the actuator. → To determine the correct position, hold the Type 8792/8793 with mounting bracket on the actuator. The conical roller ⑤ on the lever ⑥ of the position sensor must be able to move freely in the hoop (refer “Figure 15”) along the entire stroke range of the actuator.
Page 40: Aligning Lever Mechanism
Move the actuator in manual mode to half stroke (according to the scale on the actuator). → Adjust the height of the Type 8792/8793 until the lever is horizontal. → Fix the Type 8792/8793 in this position on the actuator.
Page 41: Attachment.to.a.continuous.valve.with.rotary.actuator
- parallel to the actuator or - rotated by 90° to the actuator. → Determine home position and direction of rotation of the actuator. → Connect adapter to the shaft of the Type 8792/8793 and secure with 2 setscrews. english...
Page 42 One of the setscrews must be situated on the flat side of the shaft as an anti-twist safeguard (see “Figure 18”). Rotation.range.of.the.position.sensor: The maximum rotation range of the position sensor is 180°. The shaft of the Type 8792/8793 may be moved within this range only. 180° Maximum swing range...
Page 43 If the X.TUNE ERROR 5 message is indicated on the graphics display after the X.TUNE function starts, the shaft of the Type 8792/8793 is not correctly aligned with the shaft of the actuator (see “Table 126: Error and warning message on X.TUNE”, page 225.
Page 44: Remote.operation.with.external.position.sensor
* If the position sensor is connected to the process controller Type 8793 via the analog interface, it can be operated only as a positioner. 12.4.1. Mounting accessories There are two options of attaching the Type 8792/8793 in remote operation (see “Figure 21”). Installation on a DIN rail with accessory kit, Installation on a wall with accessory kit, part no.
Page 45: Connection And Start-Up Of The Remote Sensor Type 8798
▶ Following assembly, ensure a controlled restart. → Connect the 3 or 4 wires of the sensor cable to the designated screw-type terminals of type 8792/8793. Connection.of.screw-type.terminals: See chapter “15.2.4. Terminal assignment for external position sensor (for remote model only)”, page 55.
Page 46: Connection And Start-Up Via A 4 - 20 Ma Position Sensor (For Type 8793 Remote Model Only)
Type 8792, 8793 Installation 12.4.3. Connection and start-up via a 4 – 20 mA position sensor (for Type 8793 remote model only) When a 4 – 20 mA position sensor is connected, the process controller Type 8793 can be used as a posi- tioner only, as the process actual value input is used as input for the position sensor.
Page 47: Pneumatic.connection
Type 8792, 8793 Installation 13. PNEUMATIC CONNECTION 13.1. Safety instructions DANGER! Risk.of.injury.from.high.pressure.in.the.equipment. ▶ Before loosening the pneumatic lines and valves, turn off the pressure and vent the pneumatic lines. WARNING! Risk.of.injury.from.improper.installation. ▶ Installation may be carried out by authorized technicians only and with the appropriate tools.
Page 48 Type 8792, 8793 Installation Procedure: → Apply supply pressure (1.4 – 7 bar) to the supply pressure connection P. For.single-acting.actuators.(control.function.A.and.B): → Connect one working connection (A1 or A2, depending on required safety position) to the chamber of the single-acting actuator.
Page 49: Electrical.connection.-.Circular.plug-In.connector.version.(Multi-Pole.version)
▶ Following installation, ensure a controlled restart. Using.the.4.–.20.mA.set-point.value.input If several devices of Type 8792/8793 are connected in series and the power supply to a device in this series connection fails, the input of the failed device becomes highly resistive. As a result, the 4 – 20 mA standard signal fails.
Page 50: Connection.of.the.positioner.type.8792
Type 8792, 8793 Installation 14.2. Connection of the positioner Type 8792 → Connect pins according to the model (options) of the positioner. 14.2.1. X1 - M12, 8-pole circular connector Pin Wire.colour* Configuration On.the.device.side External.circuit./.Signal.level Input.signals.of.the.control.centre.(e.g..PLC) white Set-point value + (0/4 – 20 mA or 0 – 5 / 10 V) + (0/4 –...
Page 51: Type.8793.-.Designation.of.the.circular.plug-In.connectors.and.contacts
Type 8792, 8793 Installation 14.3. Type 8793 - designation of the circular plug-in connectors and contacts Operating voltage Binary outputs Process actual value and diverse signals X1 - M12, 8-pole X5 - M8, 4-pole X4 - M8, 4-pole socket circular connector circular connector (Description see (Description see (Description see “Table 15”)
Page 52: Connecting.the.process.controller.type.8793
Type 8792, 8793 Installation 14.4. Connecting the process controller Type 8793 → First connect the process controller as described in chapter “14.2. Connection of the positioner Type 8792”. 14.4.1. X5 - M8, 4-pole circular connector, plug assignments of the process actual value input Wire. DIP. On.the. Input.type* Pin Configuration External.circuit colour** switches device.side 4 – 20 mA-...
Page 53: Electrical.connection.-.Terminal.version.for.cable.gland
▶ Following installation, ensure a controlled restart. Using.the.4.–.20.mA.set-point.value.input If several devices of Type 8792/8793 are connected in series and the power supply to a device in this series connection fails, the input of the failed device becomes highly resistive. As a result, the 4 – 20 mA standard signal fails.
Page 54: Terminal.assignment.for.cable.gland.-.Positioner.type.8792
Connect Type 8792/8793. The procedure is described in the following chapters. for Type 8792: chapter “15.2. Terminal assignment for cable gland - positioner Type 8792” for Type 8793: chapter “15.3. Terminal assignment for cable gland - process controller Type 8793”...
Page 55: Operating Voltage
Type 8792, 8793 Installation 15.2.3. Operating voltage Terminal Configuration On.the.device.side External.circuit./.Signal.level +24 V Operating voltage + +24 V 24 V DC ± 10% max. residual ripple 10% Operating voltage GND Table 19: Terminal configuration; operating voltage 15.2.4. Terminal assignment for external position sensor (for remote model only) Connection of the digital, contact-free position sensor Type 8798: Wire.colour On.the.device.
Page 56: Terminal.assignment.for.cable.gland.-.Process.controller.type.8793
Type 8792, 8793 Installation 15.3. Terminal assignment for cable gland - process controller Type 8793 → First connect the process controller as described in chapter “15.2. Terminal assignment for cable gland - positioner Type 8792” 15.3.1. Terminal assignments of the process actual value input Input.type* Terminal Configuration On.the.device.side External.circuit 4 – 20 mA +24 V transmitter input...
Page 57: Operation
Type 8792, 8793 Operation onTenTs 16.. OPERATING.LEVELS..................................58 16.1.. Switching.between.the.operating.levels.........................58 OPERATING.AND.DISPLAY.ELEMENTS..........................59 17.. 17.1.. Description.of.the.operating.and.display.elements..................59 17.1.1. Description of the symbols which are displayed on the process level ........60 17.2.. Function.of.the.keys................................61 17.2.1. Entering and changing numerical values ..................62 17.3.. Adjusting.the.display.................................63 17.3.1.
Page 58: Operating.levels
Type 8792, 8793 Operation 16. OPERATING LEVELS There is the process level and the setting level for the operation and setting of type 8792/8793. Process.level:. The running process is displayed and operated on the process level. Operating state: AUTOMATIC – Displaying the process data MANUAL –...
Page 59: Operating.and.display.elements
Operation 17. OPERATING AND DISPLAY ELEMENTS The following chapter describes the operating and display elements of Type 8792/8793. 17.1. Description of the operating and display elements The device is operated by four keys and a 128x64 dot matrix graphics display. The display is adjusted to the set functions and operating levels.
Page 60: Description Of The Symbols Which Are Displayed On The Process Level
Type 8792, 8793 Operation Display.elements.of. the.setting.level: Menu designation Submenu Operating.elements: Designation for the Right selection key function of the keys Arrow key , down arrow Arrow key , up arrow Left selection key Figure 29: Display and operating elements of the setting level 17.1.1. Description of the symbols which are displayed on the...
Page 61: Function.of.the.keys
Type 8792, 8793 Operation 17.2. Function of the keys The functions of the 4 operating keys differ depending on the operating state (AUTOMATIC or MANUAL) and operating level (process level or setting level). The key function which is active is displayed in the gray text field which is above the key.
Page 62: Entering And Changing Numerical Values
Type 8792, 8793 Operation 17.2.1. Entering and changing numerical values Changing.numerical.values.with.fixed.decimal.places: Key. Description.of.the.function Example. function Change to the next decimal place (from right to left). Arrow key After reaching the last decimal place, the display switches back to the first decimal place. Enter date and time.
Page 63: Adjusting.the.display
• The menu options which can be displayed depend on the type. How you can adjust the display for Type 8792 individually to the process to be controlled is described in Chapter "26.2.18. EXTRAS – Setting the display", page 134 ".
Page 64 Type 8792, 8793 Operation Possible.displays.in.AUTOMATIC.operating.state Graphical display of POS and CMD with time axis MENU CMD / POS (t) HOLD Time, weekday and date CLOCK 12:00 Thu..01. . . 0 9. . . 1 1 MENU INPUT INPUT X.TUNE Input signal for set-point position INPUT (0 ...
Page 65: Date.and.time
Type 8792, 8793 Operation 17.4. Date and time Date and time are set on the process level in the CLOCK menu. To ensure that the input menu for CLOCK can be selected on the process level, the following functions must be activated in 2 stages: 1.
Page 66: Setting Date And Time
Type 8792, 8793 Operation 17.4.1. Setting date and time: → On the process level select the display for CLOCK using the arrow keys. → Press INPUT to open the input screen for the setting. → Set date and time as described in the following table.
Page 67: Operating.states
Type 8792, 8793 Operation 18. OPERATING STATES Type 8792/8793 has 2 operating states: AUTOMATIC and MANUAL. When the operating voltage is switched on, the device is in the AUTOMATIC operating state. AUTOMATIC In the AUTOMATIC operating state normal controlled operation is implemented.
Page 68: Activating.and.deactivating.auxiliary.functions
Type 8792, 8793 Operation 19. ACTIVATING AND DEACTIVATING AUXILIARY FUNCTIONS Auxiliary functions can be activated for demanding control tasks. The auxiliary function is activated via the ADD.FUNCTION basic function and transferred to the main menu (MAIN). The auxiliary functions can then be selected and set in the extended main menu (MAIN).
Page 69: Deactivating Auxiliary Functions
Type 8792, 8793 Operation 19.1.1.1. Principle: Activating auxiliary functions with simultaneous incorporation into the main menu Functions in the main menu Setting.level (Standard) INPUT M A I N INPUT X.TUNE X.TUNE ADD.FUNCTION Activating the auxiliary function EXIT ENTER ADD.FUNCTION ENTER CHARACT EXTRAS DIAGNOSE EXIT Extended main menu M A I N INPUT X.TUNE...
Page 70: Manually.opening.and.closing.the.valve
Type 8792, 8793 Operation 20. MANUALLY OPENING AND CLOSING THE VALVE In the MANUAL operating state, the valve can be opened and closed manually using the arrow keys. The MANUAL operating state (key function ) is for the following process value displays: MANU • POS, actual position of the valve actuator.
Page 71: Start-Up
Type 8792, 8793 Start-Up onTenTs START-UP.SEQUENCE...................................72 21.. SAFETY.INSTRUCTIONS................................72 22.. 23.. BASIC.SETTING.OF.THE.DEVICE............................73 23.1.. .INPUT.-.Setting.the.input.signal..........................74 23.2.. .X.TUNE.–.Automatic.adjustment.of.the.positioner..................75 23.2.1. X.TUNE.CONFIG – Manual configuration of X.TUNE ..........77 24.. ACTIVATION.OF.THE.PROCESS.CONTROLLER.......................78 BASIC.SETTING.OF.THE.PROCESS.CONTROLLER......................79 25.. 25.1. P .CONTROL –.Setting.up.and.parameterization.of.the.process.controller........79 25.2. S ETUP.–.Setting.up.the.process.controller......................81...
Page 72: Start-Up.sequence
Before start-up, carry out fluid and electrical installation of Type 8792/8793 and of the valve. For description see Chapter "13", "14" and "15". When the operating voltage is applied, Type 8792/8793 is operating and is in the AUTOMATIC operating state. The display shows the process level with the values for POS and CMD.
Page 73: Basic.setting.of.the.device
Type 8792, 8793 Start-Up 23. BASIC SETTING OF THE DEVICE The following settings must be made for the basic setting of Type 8792/8793: INPUT Selection of the input signal (see Chapter "23.1"). X.TUNE Automatic self-parameterization of the positioner (see Chapter "23.2") Operating structure for the basic setting: Process.level (values are displayed)
Page 74: Input.-.Setting.the.input.signal
Type 8792, 8793 Start-Up 23.1. INPUT - Setting the input signal This setting is used to select the input signal for the set-point value. Procedure: Action Description Switching from process level setting level. MENU Press for approx. 3 s Select INPUT The possible input signals for INPUT are displayed.
Page 75: X.tune.-.Automatic.adjustment.of.the.positioner
• Adjustment of the sensor signal to the (physical) stroke of the actuator used. • Determination of parameters of the PWM signals to control the solenoid valves integrated in type 8792/8793. • Adjustment of the controller parameters for the positioner. Optimization occurs according to the criteria of the shortest possible transient time without overshoots.
Page 76 Type 8792, 8793 Start-Up Operating structure: Process.level (values are displayed) Press for approx. 3 s MENU Setting.level INPUT Automatic self-parameterization X.TUNE X.TUNE STARTED Hold.down as long as countdown TUNE #0 (5 ...) is INIT running X.TUNE READY EXIT ADD.FUNCTION EXIT Figure 33: Operating structure X.TUNE...
Page 77: X.tune.config - Manual Configuration Of X.tune
Type 8792, 8793 Start-Up X.TUNE Control system aeration side leaking Not possible, device defective ERROR 4 X.TUNE The rotation range of the position sensor is Correct attachment of the position sensor ERROR 5 exceeded by 180° shaft on the actuator (see chapter "12.2"...
Page 78: Activation.of.the.process.controller
Type 8792, 8793 Start-Up 24. ACTIVATION OF THE PROCESS CONTROLLER The process controller is activated by selecting the P.CONTROL auxiliary function in the ADD.FUNCTION menu. The activation transfers P.CONTROL into the main menu (MAIN) where it is available for further settings. Procedure: Action...
Page 79: Basic.setting.of.the.process.controller
Type 8792, 8793 Start-Up 25. BASIC SETTING OF THE PROCESS CONTROLLER 25.1. P.CONTROL – Setting up and parameterization of the process controller To start up the process controller, you must make the following settings in the P.CONTROL menu: SETUP Set up the process controller (configuration) PID.PARAMETER Parameterize process controller Operating structure: P.CONTROL ENTER PID.PARAMETER...
Page 80 Type 8792, 8793 Start-Up Procedure: Action Description Switching from process level setting level. MENU Press for approx. 3 s Select P.CONTROL Selection in the main menu (MAIN). The submenu options for basic settings can now be selected. ENTER Press 1..Set.up.process.controller.(configuration) Select SETUP The menu for setting up the process controller is displayed.
Page 81: Setup - Setting Up The Process Controller
Type 8792, 8793 Start-Up 25.2. SETUP – Setting up the process controller These functions specify the type of control. The procedure is described in the following Chapters "25.2.1" to "25.2.5". 25.2.1. PV-INPUT – Specifying signal type for the process actual value One of the following signal types can be selected for the process actual value: •...
Page 82: Pv-Scale - Scaling Of The Process Actual Value
Type 8792, 8793 Start-Up 25.2.2. PV-SCALE – Scaling of the process actual value The following settings are specified in the submenu of PV-SCALE: 1. The physical unit of the process actual value. PVmin 2. Position of the decimal point of the process actual value. 3. Lower scaling value of the process actual value.
Page 83 Type 8792, 8793 Start-Up 25.2.2.1. Effects and dependencies of the settings of PV-INPUT on PV-SCALE The settings in the PV-SCALE menu have different effects, depending on the signal type selected in PV-INPUT. Even the selection options for the units of the process actual value (in PVmin) depend on the signal type selected in PV-INPUT.
Page 84 Type 8792, 8793 Start-Up For internal set-point value default (SP-INPUT → intern), the process set-point value is input directly on the process level. Example of a sensor calibration for frequency signal type: Pulses Scaling: Flow-rate Process actual value: K-factor 100 pulses correspond to 10 liters...
Page 85 Type 8792, 8793 Start-Up Action Description 3..Setting.K-factor.(only.available.for.frequency.signal.type). Select K-factor The submenu for the setting of the K-factor is displayed. ENTER Press either Select VALUE Manual.input.of.the.K-factor.. The input screen is opened. The decimal point has a dark INPUT Press background. Specify position of the decimal point.
Page 86: Sp-Input - Type Of The Set-Point Value Default (Intern Or Extern)
Type 8792, 8793 Start-Up 25.2.3. SP-INPUT – Type of the set-point value default (intern or extern) The SP-INPUT menu specifies how the default of the process set-point value is to be implemented. • Intern: Input of the set-point value on the process level • Extern: Default of the set-point value via the standard signal input...
Page 87 Type 8792, 8793 Start-Up Operating structure: SP-SCALE ENTER SPmin INPUT Input lower process set-point value INPUT SPmax Input upper process set-point EXIT value Figure 40: Operating structure SP-SCALE Scaling.process.set-point.value.SETUP.→.SP-SCALE: Action Description Select SP-SCALE The submenu options for scaling of the process set-point value are...
Page 88: P.co-Init - Smooth Switchover Manual-Automatic
Type 8792, 8793 Start-Up 25.2.5. P.CO-INIT – Smooth switchover MANUAL-AUTOMATIC The smooth switchover between the MANUAL and AUTOMATIC states can be activated or deactivated in the P.CO-INIT menu. Factory default setting: bumpless Smooth switchover activated. Operating structure: SELEC Smooth switchover activated P.CO-INIT ENTER bumpless...
Page 89: Pid.parameter.-.Parameterizing.the.process.controller
Type 8792, 8793 Start-Up 25.3. PID.PARAMETER – Parameterizing the process controller The following control parameters of the process controller are manually set in this menu. DBND 1.0 % Insensitivity range (dead band) of the process controller 1.00 Amplification factor of the (P-contribution of the PID controller) 999.0...
Page 90: Dbnd - Insensitivity Range (Dead Band)
25.3.2. DBND – Insensitivity range (dead band) This function causes the process controller to respond from a specific control difference only. This protects both the solenoid valves in Type 8792/8793 and the pneumatic actuator. Factory setting: 1.0 % with reference to the range of the scaled process actual value (setting in the menu PV-SCALE →...
Page 91: Tn - Reset Time Of The Process Controller
Type 8792, 8793 Start-Up 25.3.4. TN – Reset time of the process controller The reset time specifies the I-contribution of the PID controller (can be set with the aid of the P.TUNE function). Factory setting: 999.9 s Operating structure: DBND 1.0 % PID.PARAMETER ENTER Input value 999.9...
Page 92: Filter - Filtering Of The Process Actual Value Input
Type 8792, 8793 Start-Up 25.3.7. FILTER – Filtering of the process actual value input The filter is valid for all process actual value types and has a low pass behavior (PT1). Factory setting: 0 Operating structure: PID.PARAMETER DBND 1.0 % ENTER FILTER INPUT EXIT Input value Adjustment range: 0 ... 9 Figure 48: Operating structure FILTER;...
Page 93: P.q'lin.-.Linearization.of.the.process.characteristic
Type 8792, 8793 Start-Up 25.4. P.Q‘LIN – Linearization of the process characteristic This function automatically linearizes the process characteristic. In doing so, the nodes for the correction characteristic are automatically determined. To do this, the program moves through the valve stroke in 20 steps and measures the associated process variable.
Page 94: P.tune - Self-Optimization Of The Process Controller
Type 8792, 8793 Start-Up 25.5. P.TUNE – Self-optimization of the process controller This function can be used to automatically parameterize the PID controller integrated in the process controller. In doing so, the parameters for the P, I and D-contribution of the PID controller are automatically determined and transferred to the corresponding menus of (KP, TN, TV).
Page 95 Type 8792, 8793 Start-Up 25.5.2.1. Preparatory measures for execution of P.TUNE in the MANUAL operating state Moving.process.actual.value.PV.to.the.operating.point: Action Description Setting.on.the.process.level: Select PV The process actual value PV is indicated on the display. Change to MANUAL operating state. MANU Press The input screen for manually opening and closing the valve is displayed.
Page 96: Starting The Function
Type 8792, 8793 Start-Up To observe PV, it is recommended to select via the arrow keys the graphical display SP/PV(t). To be able to select the display SP/PV(t), it must be activated in the EXTRAS menu (see Chapter "26.2.18. EXTRAS – Setting the display").
Page 97 Type 8792, 8793 Start-Up Possible.error.messages.when.running P.TUNE: Display Cause of fault Remedial action TUNE Manual termination of self-optimization by err/break pressing the key. EXIT P.TUNE No supply pressure connected. Connect supply pressure. ERROR 1 No change to process variable. Check process and, if required, switch on pump or open the shut-off valve.
Page 98: Auxiliary Functions
Type 8792, 8793 Auxiliary functions onTenTs CONFIGURING.THE.AUXILIARY.FUNCTIONS........................99 26.. 26.1.. Activating.and.deactivating.auxiliary.functions....................99 26.1.1. Including auxiliary functions in the main menu ................99 26.1.2. Removing auxiliary functions from the main menu ..............100 26.1.3. Principle of including auxiliary functions in the main menu ..........100 26.2..
Page 99: Configuring.the.auxiliary.functions
Type 8792, 8793 Auxiliary functions 26. CONFIGURING THE AUXILIARY FUNCTIONS The device has auxiliary functions for demanding control tasks. This chapter describes how the auxiliary functions are activated, set and configured. 26.1. Activating and deactivating auxiliary functions The required auxiliary functions must be activated by the user initially by incorporation into the main menu (MAIN).
Page 100: Removing Auxiliary Functions From The Main Menu
Type 8792, 8793 Auxiliary functions 26.1.2. Removing auxiliary functions from the main menu If a function is removed from the main menu, the settings implemented previously under this function become invalid again. Procedure: Action Description Switching from process level setting level. MENU Press for approx. 3 s Select ADD.FUNCTION...
Page 101: Overview.and.description.of.the.auxiliary.functions
Type 8792, 8793 Auxiliary functions 26.2. Overview and description of the auxiliary functions Selection of the transfer characteristic between input signal ADD.FUNCTION CHARACT ENTER and stroke (correction characteristic) Sealing function for positioner CUTOFF Sense of effective direction between input signal and set- DIR.CMD point position Assignment of the aeration state of the actuator chamber to DIR.ACT...
Page 102: Charact - Select The Transfer Characteristic Between Input Signal (Position Set-Point Value) And Stroke
Type 8792, 8793 Auxiliary functions 26.2.1. C HARACT – Select the transfer characteristic between input signal (position set-point value) and stroke Characteristic (customer-specific characteristic) Use this auxiliary function to select a transfer characteristic with reference to set-point value (nominal position, CMD) and valve stroke (POS) for correction of the flow-rate or operating characteristic.
Page 103 For this reason it is occasionally necessary to correct the course of the operating characteristic in a suitable way. For this purpose the Type 8792/8793 features a transfer element which implements different characteristics. These are used to correct the operating characteristic.
Page 104 Type 8792, 8793 Auxiliary functions Procedure: Action Description Switching from process level setting level. MENU Press for approx. 3 s Select CHARACT (To do this, the auxiliary function must be incorporated into the main menu). Menu options of CHARACT are displayed.
Page 105 Type 8792, 8793 Auxiliary functions Example.of.a.programmed.characteristic Valve stroke [%] (POS) Standard signal [%] (CMD) 90 100 4 ... 20 mA 0 ... 20 mA 0 ... 10 V 0 ... 5 V Figure 54: Example of a programmed characteristic In the section “Tables for customer-specific settings” in chapter “42.1. Settings of the freely program- mable characteristic”...
Page 106: Cutoff - Sealing Function
Type 8792, 8793 Auxiliary functions 26.2.2. C UTOFF – Sealing function This function causes the valve to be sealed outside the control area. This is where you input the limits for the position set-point value (CMD) as a percentage, from which the actuator is fully deaerated or aerated.
Page 107 Type 8792, 8793 Auxiliary functions Valve stroke [%] Adjustable from 75 ... 100 % (POS) Set-point value [%] (CMD) einstellbar von 0 ... 25 % Figure 56: Graph - CUTOFF; english...
Page 108: Dir.cmd - Sense Of Effective Direction Of The Positioner Set-Point Value
Type 8792, 8793 Auxiliary functions 26.2.3. D IR.CMD – Sense of effective direction of the positioner set-point value Use this auxiliary function to set the sense of effective direction between the input signal (INPUT) and the nominal position (CMD) of the actuator. Each auxiliary function, which is to be set, must be incorporated initially into the main menu (MAIN).
Page 109: Dir.act - Sense Of Effective Direction Of The Actuator Drive
Type 8792, 8793 Auxiliary functions 26.2.4. D IR.ACT – Sense of effective direction of the actuator drive Use this auxiliary function to set the sense of effective direction between the aeration state of the actuator and the actual position (POS). Factory setting: Rise Direct effective direction Rise DIR.ACT...
Page 110: Spltrng - Signal Split Range
Type.8793: The SPLTRNG auxiliary function can only be selected when operating as a positioner. P.CONTROL = not activated. Use this auxiliary function to limit the position set-point value range of the Type 8792/8793 by specifying a minimum and a maximum value.
Page 111: X.limit - Limits The Mechanical Stroke Range
Type 8792, 8793 Auxiliary functions 26.2.6. X .LIMIT – Limits the mechanical stroke range This auxiliary function limits the (physical) stroke to specified % values (minimum and maximum). In doing so, the stroke range of the limited stroke is set equal to 100 %. If the limited stroke range is left during operation, negative POS values or POS values greater than 100 % are indicated.
Page 112: X.time - Limiting The Control Speed
Type 8792, 8793 Auxiliary functions 26.2.7. X .TIME – Limiting the control speed Use this auxiliary function to specify the opening and closing times for the entire stroke and limit the control speeds. When the X.TUNE function is running, the minimum opening and closing time for the entire stroke is auto- matically entered for Open and Close.
Page 113: X.control - Parameterization Of The Positioner
(see Auxiliary function “26.2.6. X.LIMIT – Limits the mechanical stroke range” ). This function causes the controller to respond only from a specific control difference; as a result the solenoid valves in the Type 8792/8793 and the pneumatic actuator are protected. english...
Page 114: P.control - Setting Up And Parameterization Of The Process Controller
Type 8792, 8793 Auxiliary functions Xd1‘ Position set- Control to the point value difference controller Xd1‘ Dead zone Position actual value Figure 68: Graph - X.CONTROL 26.2.9. P .CONTROL – Setting up and parameterization of the process controller Parameterization of the process controller is described in Chapter “25.1. P.CONTROL – Setting up and param- eterization of the process controller”...
Page 115: Security - Code Protection For The Settings
Type 8792, 8793 Auxiliary functions 26.2.10. S ECURITY – Code protection for the settings Use the SECURITY function to prevent the Type 8792/8793 or individual functions from being accessed unintentionally. Factory setting: Access Code: 0000 If the code protection is activated, the code (set access code or master code) must be input whenever operator action is disabled.
Page 116 * If you have forgotten the set code: All operator actions can be implemented with the non-changeable master code. This 4-digit master code can be found in the printed brief instructions for Type 8792/8793. english...
Page 117: Safepos - Input The Safety Position
Type 8792, 8793 Auxiliary functions 26.2.11. S AFEPOS – Input the safety position This function specifies the actuator safety position which is started at defined signals. The set safety position is only started • if there is a corresponding signal on the binary input (Configuration see chapter “26.2.13.
Page 118: Sig.error - Configuration Of Signal Level Fault Detection
Fault if input signal 225 °C (± 0.5 % of final value, hysteresis 0.5 % of final value) The signal type is set in the following menus: 1. INPUT (for Types 8792 and 8793): See Chapter “23.1. INPUT - Setting the input signal”.
Page 119: Binary.in - Activation Of The Binary Input
Type 8792, 8793 Auxiliary functions 26.2.12.1. Behavior of the actuator when safety position deactivated or activated Selection SafePos off – The actuator remains in the position which corresponds to the set-point value last transferred (default setting). Selection SafePos on – Approaching the safety position activated: In the event of a signal fault detection, the behavior of the actuator depends on the activation of the SAFEPOS auxiliary function.
Page 120 Type 8792, 8793 Auxiliary functions SafePos.–.Approaching.a.safety.position: The behavior of the actuator depends on the activation of the SAFEPOS auxiliary function. See Chapter “26.2.11. SAFEPOS – Input the safety position”. SAFEPOS activated: The actuator moves to the safety position which is specified in the SAFEPOS auxiliary function.
Page 121: Output - Configuring The Outputs (Option)
Operating structure OUTPUT; 26.2.14.1. OUT ANALOG - Configuring the analogue output Type.8792: The feedback of the current position (POS) or of the set-point value (CMD) can be transmitted to the control center via the analog output. Type.8793: The feedback of the current position (POS) or of the set-point value (CMD), of the process actual value (PV) or of the process set-point value (SP) can be transmitted to the control center via the analog output.
Page 122 Type 8792, 8793 Auxiliary functions 26.2.14.2. OUT BIN1 / OUT BIN2 - Configuring the binary outputs The following description is valid for both binary outputs OUT BIN 1 and OUT BIN 2, as the operation in the menu is identical. The binary outputs 1 and 2 can be used for one of the following outputs: POS.Dev...
Page 123 Type 8792, 8793 Auxiliary functions Alarm output for exceeding the permitted control deviation OUT BIN1 Tolerance for the POS.Dev ENTER SELEC Input value OUT BIN2 permitted control Deviation: deviation Adjustment range: 1 ... 50 %** Output: current position with respect to a specified limit...
Page 124 Type 8792, 8793 Auxiliary functions 26.2.14.3. Setting of the submenu options of OUT BIN 1 / OUT BIN 2 Action Description Switching from process level setting level. MENU Press for approx. 3 s Select OUTPUT (To do this, the auxiliary function must be incorporated into the main menu). The outputs are displayed.
Page 125 Type 8792, 8793 Auxiliary functions • Safepos.-.Outputting.the.message:.Actuator.in.safety.position • ERR.SP/CMD.-.Outputting.the.message:.Sensor.break.for.process.set-point.value/set-point.position. Only available if the function in the SIG.ERR menu has been activated (SIG.ERR → SP/CMD input → Error on). See Chapter “26.2.12. SIG.ERROR – Configuration of signal level fault detection”. • ERR.PV -.Outputting.the.message:.Sensor.break.for.process.actual.value.(only.for.Type.8793).
Page 126 Type 8792, 8793 Auxiliary functions • OUT.type.-.Setting.the.switching.status.. In addition to selecting the output, the switching status required for the binary output must be input. See “Table 64”. Action Description Select OUT.type The switching statuses normally open and normally closed are...
Page 127: Cal.user - Calibration Of Actual Value And Set-Point Value
Type 8792, 8793 Auxiliary functions 26.2.15. C AL.USER – Calibration of actual value and set-point value The following values can be manually calibrated with this function: • Position actual value calibr. POS (0 - 100 %) calibr. INP • Position set-point value (4 - 20 mA, 0 - 20 mA, 0 - 5 V, 0 - 10 V) For the calibration process the signal type is displayed which was specified for the input signal.
Page 128 Type 8792, 8793 Auxiliary functions CAL.USER ENTER calibr. POS POS. pMIN ENTER INPUT Input value (POS.lower:) POS. pMAX INPUT EXIT Input value (POS.upper:) Only.for.positioner.Type.8792. (or for Type 8793 if P.CONTROL not activated). calibr. INP INP 4mA 0** ENTER INPUT Create and confirm...
Page 129 Type 8792, 8793 Auxiliary functions 26.2.15.1. Calibration of the position actual value and the position set- point value Action Description Switching from process level setting level. MENU Press for approx. 3 s Select CAL.USER (To do this, the auxiliary function must be incorporated into the main menu). The submenu options are displayed.
Page 130 Type 8792, 8793 Auxiliary functions 26.2.15.2. Calibration of the process set-point value and process actual value Action Description Switching from process level setting level. MENU Press for approx. 3 s Select CAL.USER (To do this, the auxiliary function must be incorporated into the main menu). The submenu options are displayed.
Page 131 Type 8792, 8793 Auxiliary functions 26.2.15.3. Resetting the settings under CAL.USER to the factory settings Action Description Switching from process level setting level. MENU Press for approx. 3 s Select CAL.USER (To do this, the auxiliary function must be incorporated into the main menu). The submenu options are displayed.
Page 132: Set.factory - Resetting To The Factory Settings
(until progress bar is closed) Reset is implemented. Switching from setting level process level. EXIT Press Table 68: SET.FACTORY; Resetting to the factory settings To adjust the Type 8792/8793 to the operating parameters, re-implement self-parameterization of the positioner (X.TUNE). english...
Page 133: Ser. I\O - Settings Of The Serial Interface
Type 8792, 8793 Auxiliary functions 26.2.17. S ER. I\O – Settings of the serial interface This function can be used to set the type of the serial interface and the baud rate. SELEC SER. I/O I/O.MODE HART ENTER ENTER Burst Automatic Auto EXIT switchover to HART/Burst...
Page 134: Extras - Setting The Display
Type 8792, 8793 Auxiliary functions 26.2.18. E XTRAS – Setting the display This function can be used to individually set the display. • In DISP.ITEMS the display of the process level can be individually set. To do this, further menu options can be activated for the display of the process level. POS and CMD are acti- vated in the as-delivered state.
Page 135 Type 8792, 8793 Auxiliary functions DISP.ITEMS.-.Activating.menu.displays.for.displaying.the.process.level: Action Description Switching from process level setting level. MENU Press for approx. 3 s Select ADD.FUNCTION The possible auxiliary functions are displayed. ENTER Press Select EXTRAS ENTER Press Activate the EXTRAS auxiliary function by checking the box transfer into the main menu.
Page 136 Type 8792, 8793 Auxiliary functions DISP.MODE.-.. S elect.type.of.display.. (black.font.on.light.background.or.white.font.on.dark.background): Action Description Switching from process level setting level. MENU Press for approx. 3 s Select ADD.FUNCTION The possible auxiliary functions are displayed. ENTER Press Select EXTRAS ENTER Press Activate the EXTRAS auxiliary function by checking the box transfer into the main menu.
Page 137: Pos.sensor - Setting Interface Remote Position Sensor
If the position sensor requires an additional power supply of 24 V DC, it can be supplied via the positioner. 26.2.20. S ERVICE This function is of no importance to the operator of Type 8792/8793. It is for internal use only. english...
Page 138: Simulation - Menu For Simulation Of Set-Point Value, Process And Process Valve
Type 8792, 8793 Auxiliary functions 26.2.21. S IMULATION – Menu for simulation of set-point value, process and process valve This function can be used to simulate set-point value, process and process valve independently of each other. Caution! Restarting the device deactivates the simulation. The settings of SIGNAL.form, x.SIM and p.SIM are reset to the factory setting.
Page 139 Type 8792, 8793 Auxiliary functions 26.2.21.1. SIGNAL.sim – Simulation of the set-point value The settings to simulate the set-point value are made in the SIGNAL.sim menu. Activation.of.the.simulation: In the SIGNAL.form submenu by selecting one of the following waveforms Sine wave Sine Square wave Square Triangle wave Triangle Single cycle of an alternating signal sequence.
Page 140 Type 8792, 8793 Auxiliary functions Action Description Select SIGNAL.sim The submenu for activating and parameterizing the set-point value ENTER Press simulation is displayed. Select SIGNAL.form The menu options for activating and for selecting the waveform are ENTER Press displayed. Select required menu option...
Page 141 Type 8792, 8793 Auxiliary functions 26.2.21.2. CONTROL.sim – Simulation of the process and process valve The settings to simulate the process and the process valve are made in the CONTROL.sim menu. Settings Type of simulation: Simulation of the process valve. x.SIM Simulation of the process. p.SIM Parameterization of Specify amplification factor.
Page 142 Type 8792, 8793 Auxiliary functions Action Description Select required simulation Selection x.SIM = simulation process. Selection p.SIM = simulation process valve. SELEC Press Activate the selection by checking the box or deactivate it by unchecking the box Setting the parameters for simulation of the process and/or the process valve: Select SIM.Gain...
Page 143: Diagnose - Menu For Monitoring Valves (Option)
Type 8792, 8793 Auxiliary functions 26.2.22. D IAGNOSE – Menu for monitoring valves (option) The optional function DIAGNOSE can be used to monitor the state of the valve. If there are deviations from the set-point state, messages are output according to NE 107. Example of the output of a diagnosis message:...
Page 144 Type 8792, 8793 Auxiliary functions 26.2.22.3. DIAGNOSE – Operating structure Display all generated Select a diagnosis diagnosis messages message DIAGNOSE D. MSG ENTER SERVICE.TIME ENTER CLEAR ENTER Diagnosis Delete. message message POS.MONITOR EXIT displayed EXIT Assignment of status signals Display the diagnosis according to NE 107**...
Page 145 Type 8792, 8793 Auxiliary functions 26.2.22.4. Activation of diagnosis functions In the ADD.DIAGNOSE menu several diagnosis functions are activated and incorporated into the DIAGNOSE main menu. Activatable diagnosis functions: Graphical display of the dwell time density and movement range. HISTOGRAM Operating-hours counter SERVICE.TIME Path accumulator TRAVEL.ACCU...
Page 146 Type 8792, 8793 Auxiliary functions 26.2.22.5. Description of the DIAGNOSE main menu D.MSG –.Diagnosis.messages All generated diagnosis messages are listed in the D.MSG menu where they can be viewed and deleted. The status signal, which is assigned to the diagnosis message, is indicated by a symbol.
Page 147 Type 8792, 8793 Auxiliary functions If several diagnosis messages are available with different status signals, the status signal with the highest priority is shown on the display. Overview.of.the.status.signals.according.to.NE.107.(NE.=.NAMUR.recommendation):. Priority Status.signal Description Failure Function check Out of specification Maintenance required Table 79: CONFIG.MSG;...
Page 148 Type 8792, 8793 Auxiliary functions ADD.DIAGNOSE –.Activation.and.deactivation.of.diagnosis.functions Diagnosis functions can be activated in this menu and incorporated into the DIAGNOSE main menu or already activated diagnosis functions can be deactivated again. Activation.of.diagnosis.functions: For description see Chapter “26.2.22.4. Activation of diagnosis functions”...
Page 149 Type 8792, 8793 Auxiliary functions 26.2.22.6. Description of the diagnosis functions HISTOGRAM –.Output.of.histograms The HISTOGRAM menu is divided into 2 parts: 1... O utputting.the.histograms for POS class (dwell time density) and DIR class (movement range) 2. List.of.the.characteristic.values for CMD Set-point position valve actuator Actual position valve actuator...
Page 150 Type 8792, 8793 Auxiliary functions POS-Class - Description.of.the.histogram.of.the.dwell.time.density The histogram indicates how long the actuator has stopped in a specific position. For this purpose the stroke range is divided into 10 classes. The current position of one of the 10 classes is assigned to each scan time.
Page 151 Type 8792, 8793 Auxiliary functions DIR-Class - Description.of.the.histogram.of.the.movement.range The histogram indicates the movement ranges of the actuator between two direction reversal points. For this purpose the movement range between two changes in direction is divided into 10 classes. The current position of one of the 10 classes is assigned to each scan time.
Page 152 Type 8792, 8793 Auxiliary functions Starting,.stopping.and.deleting.the.histograms Action Description Select HISTOGRAM (To do this, the HISTOGRAM function must be incorporated into the DIAGNOSE main menu. See Chapter “26.2.22.4. Activation of diagnosis functions”). The empty matrix of the POS-Class submenu (dwell time density) is...
Page 153 Type 8792, 8793 Auxiliary functions SERVICE.TIME –.Operating-hours.counter The operating-hours counter records the time during which the device was switched on. If the duty cycle reaches the specified time limit, a message is generated. • To do this, a history entry is made in the HISTORY submenu. For description see “26.2.22.7. History entries in the HISTORY submenu”.
Page 154 Type 8792, 8793 Auxiliary functions TRAVEL.ACCU –.Path.accumulator The path accumulator records and adds up the path which the actuator piston covers. A movement of the actuator piston is detected when the position changes by at least 1 %. The interval for outputting messages is specified by inputting a limit for the total number of piston movements.
Page 155 Type 8792, 8793 Auxiliary functions Specifying.interval.for.the.output.of.messages Action Description Select TRAVEL.ACCU (To do this, the TRAVEL.ACCU function must be incorporated into the DIAGNOSE main menu. See Chapter “26.2.22.4. Activation of diagnosis functions”). The menu is displayed. ENTER Press * Required for analog position sensor only (setting the STROKE submenu) Select STROKE The preset value is displayed.
Page 156 Type 8792, 8793 Auxiliary functions Operating structure: CYCLE.COUNTER LIMIT INPUT ENTER Input change in direction Display the remaining changes in direction until the next NEXT M. message Delete.history.entry HISTORY ENTER CLEAR EXIT History entry is displayed EXIT Figure 94: Operating structure CYCLE.COUNTER Specifying.interval.for.the.output.of.messages...
Page 157 Type 8792, 8793 Auxiliary functions Display.TEMP.CHECK Description.of.the.functions CURRENT indicates the current temperature. TEMP.CHECK MAX indicates the highest temperature of the slave pointer 21.7. * C CURRENT 21.7 * C MIN indicates the lowest temperature of the slave pointer 21.7 * C The permitted temperature range can be changed in the LIMIT submenu.
Page 158 Type 8792, 8793 Auxiliary functions Action Description Input upper temperature limit TEMP.MAX. Increase value < Changing the decimal place Acknowledge value. Press Select TEMP.MIN Open factory setting for lower temperature limit. INPUT Press Input lower temperature limit TEMP.MIN. Increase value <...
Page 159 Type 8792, 8793 Auxiliary functions CAUTION! If a stroke limit was set in the X.LIMIT menu, the mechanical end position monitor has only limited relevance. The end positions indicated on the process level under POS are not the physically caused end positions in this case.
Page 160 Type 8792, 8793 Auxiliary functions Action Description Acknowledge value. Press Return to the STROKE.CHECK menu. EXIT Press Return to the DIAGNOSE main menu. EXIT Press Table 93: STROKE.CHECK; end position monitor. POS.MONITOR –Position.monitoring The POS.MONITOR function monitors the current position of the actuator.
Page 161 Type 8792, 8793 Auxiliary functions Operating structure: ENTER DEADBAND POS.MONITOR INPUT Input tolerance band COMP.TIME INPUT Input compensation time Delete.history.entry HISTORY ENTER CLEAR EXIT History entry is displayed EXIT Figure 98: Operating structure POS.MONITOR Inputting.tolerance.band.and.compensation.time Action Description Select POS.MONITOR (To do this, the POS.MONITOR function must be incorporated into the DIAGNOSE main menu.
Page 162 Type 8792, 8793 Auxiliary functions 26.2.22.7. History entries in the HISTORY submenu Each diagnosis function, which can output a message, has the HISTORY submenu. When the diagnosis message is actuated, a history entry is created with date and value. The history entries of the respective diagnosis function can be viewed and deleted in the HISTORY submenu.
Page 163: Manual.configuration.of.x.tune
Type 8792, 8793 Auxiliary functions 26.3. Manual configuration of X.TUNE This.function.is.needed.for.special.requirements.only.. For standard applications the X.TUNE function has been preset at the factory. See chapter “23.2. X.TUNE – Automatic adjustment of the positioner”. For special requirements the X.TUNE function, as described below, can be manually configured.
Page 164: Description Of The Menu For The Manual Configuration Of X.tune
Type 8792, 8793 Auxiliary functions 26.3.1. Description of the menu for the manual configuration of X.TUNE Configuration.of.the.X.TUNE. Specify which functions are to be executed when X.TUNE.CONFIG function X.TUNE is running (automatic self-optimization). Position.of.the.end.positions - Specify whether the pneumatic actuator has M.TUNE.POS mechanical end positions. - Manual specification of the end positions If there are no mechanical end positions available, these are not approached by the X.TUNE and must...
Page 165 Type 8792, 8793 Auxiliary functions 26.3.1.2. X.TUNE.POS – Setting of the end positions In this menu you can specify whether the pneumatic actuator has mechanical end positions or not. If there are no mechanical end positions available, these are not approached by the X.TUNE and must be man- ually specified.
Page 166 Type 8792, 8793 Auxiliary functions 26.3.1.3. M.TUNE.PWM – Optimization of the PWM signals In this menu the PWM signals for control of the aeration valves and bleed valves are manually optimized. For optimization the actuator is aerated and bled. A progress bar on the display indicates the position of the actuator and the speed of aeration and deaeration.
Page 167 Type 8792, 8793 Auxiliary functions 26.3.1.4. M.TUNE.AIR – Determination of the opening and closing times By running this function, the opening and closing times of the valve are determined continuously. A change to the supply pressure will affect the aeration time which can be optimized in this way.
Page 168: Operating Structure / Factory Settings
Type 8792, 8793 Operating structure / Factory settings onTenTs 27.. OPERATING.STRUCTURE.AND.FACTORY.SETTINGS....................169 english...
Page 169: Operating.structure.and.factory.settings
Type 8792, 8793 Operating structure / Factory settings 27. OPERATING STRUCTURE AND FACTORY SETTINGS The factory presets are highlighted in blue to the right of the menu in the operating structure. Examples: Menu options activated or selected at the factory Menu options not activated or selected at the factory sec, ...
Page 170 Type 8792, 8793 Operating structure / Factory settings BUS PDO / Setpoint Operation mode Error reset P.CONTRL active Automatic.X.TUNE X.TUNE X.TUNE STARTED TUNE #0 INIT ... X.TUNE ready Manual.X.TUNE X.TUNE.CONFIG X.TUNE.DBDx X.TUNE.PARAx X.TUNE.LEAKAGE X.TUNE.Ypwm X.TUNE.Yfric M.TUNE.POS ACT.limit ACT.nolimit POS.pMIN POS.pMAX M.TUNE.PWM...
Page 171 Type 8792, 8793 Operating structure / Factory settings ADD.FUNCTION CHARACT CUTOFF DIR.CMD DIR.ACT SPLTRNG X.LIMIT X.TIME X.CONTROL P.CONTROL SECURITY SAFEPOS SIG.ERROR BINARY.IN OUTPUT CAL.USER SET.FACTORY SER.I/O EXTRAS POS.SENSOR SERVICE SIMULATION DIAGNOSE Activatable.auxiliary.functions CHARACT Figure 102: Operating structure - 3 1) only process controller Type 8793...
Page 172 Type 8792, 8793 Operating structure / Factory settings Activatable.auxiliary.functions CHARACT linear GP 1:25 GP 1:3 3 GP 1:5 0 GP 25:1 GP 3 3:1 GP 5 0:1 Graph FREE GRAPH y 0 –> y 5 –> •. •. • y 100 –> 100 %...
Page 173 Type 8792, 8793 Operating structure / Factory settings Activatable.auxiliary.functions X.LIMIT 100 % 100 % 1.0 sec X.TIME T . open 1.0 sec 1.0 sec T . close 1.0 sec 1.0 % X.CONTROL DBND 1.0 % KXopn KXcls KDopn KDcls YBfric YEfric 1.0 %...
Page 174 Type 8792, 8793 Operating structure / Factory settings Activatable.auxiliary.functions 0.0 l/s PV-SCALE PVmin 100.0 l/s PVmax 100.0 VALUE K-Factor TEACH-IN Valve TEACH-IN closing Teach-in at work –> filling VOLUME SP-INPUT intern extern 0.0 l/s SP-SCALE SPmin 100.0 l/s SPmax 100.0 P.CO-INIT...
Page 175 Type 8792, 8793 Operating structure / Factory settings Activatable.auxiliary.functions SAFEPOS Safepos SIG.ERROR SP/CMD Input Error off Error on SAFEPOS SafePos off SafePos on PV Input Error off Error on SAFEPOS SafePos off SafePos on BINARY.IN SafePos Manu / Auto X.TUNE X.CO / P.CO...
Page 176 Type 8792, 8793 Operating structure / Factory settings 1,0 % OUT BIN 1 POS.Dev Deviation 1.0 % POS.Lim-1 Limit 0.0 % Safepos ERR.SP/CMD ERR.PV Remote Tune.Status DIAG.State-1 FAILURE OUT SPEC FUNC.CHECK MAINTENANCE OUT.type normally open normally closed 1,0 % OUT BIN 2 POS.Dev...
Page 177 Type 8792, 8793 Operating structure / Factory settings Activatable.auxiliary.functions CAL.USER calibr. POS POS.pMIN * Value is set for X.TUNE (automatic or manual). POS.pMAX calibr. INP INP 4mA ** Value is set by the manufacturer during device-specific calibration. INP 20mA 0 calibr.
Page 178 Type 8792, 8793 Operating structure / Factory settings Activatable.auxiliary.functions SERIAL.CONFIG NONE par.,1 Stop EVEN par.,1 Stop ODD par.,1 Stop NONE par., 2 Stop EVEN par., 2 Stop ODD par., 2 Stop EXTRAS DISP.ITEMS CMD /POS CMD /POS (t ) SP /PV...
Page 179 Type 8792, 8793 Operating structure / Factory settings Activatable.auxiliary.functions START-UP.ITEMS CMD /POS CMD /POS (t ) SP /PV SP /PV (t ) CLOCK INPUT TEMP X.TUNE P.TUNE P.LIN DISP.MODE normal invers POS.SENSOR DIGITAL ANALOG tan.corr off TAN.CORRECTION tan.corr SERVICE 0°...
Page 180 Type 8792, 8793 Operating structure / Factory settings Activatable.auxiliary.functions SIMULATION SIGNAL.sim SIGNAL.form Extern Sinus Square Triangle Mixed 50.0 % Offset 80.0 % Amplitude 5.0 sec Periode CONTROL.sim x.SIM p.SIM SIM.Gain 2.0 sec SIM.Delay DIAGNOSE SERVICE.TIME D.MSG TRAVEL.ACCU CYCLE.COUNTER TEMP.CHECK STROKE.CHECK PV.MONITOR...
Page 181 Type 8792, 8793 Operating structure / Factory settings TRAVEL.ACCU FAILURE FUNC.CHECK OUT.SPEC MAINTENANCE CYCLE.COUNTER FAILURE FUNC.CHECK OUT.SPEC MAINTENANCE TEMP.CHECK FAILURE FUNC.CHECK OUT.SPEC MAINTENANCE STROKE.CHECK FAILURE FUNC.CHECK OUT.SPEC MAINTENANCE FAILURE PV.MONITOR FUNC.CHECK OUT.SPEC MAINTENANCE POS.MONITOR FAILURE FUNC.CHECK OUT.SPEC MAINTENANCE ADD.DIAGNOSE Figure 112:...
Page 182 Type 8792, 8793 Operating structure / Factory settings ADD.DIAGNOSE HISTOGRAM SERVICE.TIME TRAVEL.ACCU CYCLE.COUNTER TEMP.CHECK STROKE.CHECK PV.MONITOR POS.MONITOR RESET.HISTORY Reset done Aktivierbare.Diagnosefunktionen HISTOGRAM POS-Class DIR-Class SYSTEM-DATA SERVICE.TIME LIMIT 90d. 00h NEXT M. HISTORY 20.0 mm TRAVEL.ACCU 1000000 cm LIMIT NEXT.M HISTORY 1000000 CYCLE.COUNTER...
Page 183 Type 8792, 8793 Operating structure / Factory settings Activatable.auxiliary.functions TEMP.CHECK CURRENT 60.0 °C LIMIT TEMP.MAX 0.0 °C TEMP.MIN HISTORY TEMP.MAX TEMP.MIN STROKE.CHECK 0,5 % LIMIT LIMIT ZERO.TOL 0,5 % MAX.TOL HISTORY ZERO 2.0 % POS.MONITOR DEADBAND 10.0 sec COMP.TIME HISTORY 2.0 %...
Page 184: Profibus Dp
Configuration of the process values ..................195 30.5.. Configuration.with.Siemens.Step7......................... 198 30.5.1. Example 1 of a positioner (Type 8792): Transfer of set-point and actual value ..... 198 30.5.2. Example 2 of a process controller (Type 8793): Transfer of several process values ... 199...
Page 185: Description.of.the.profibus.dp
Sync.and.Freeze.mode Are not supported Diagnosis.telegram No device-specific diagnosis Parameter.telegram No user parameters The process data is configured in the Type 8792/8793 and in the PROFIBUS master. Maximum 10 process values (total INPUT and OUTPUT) can be transferred. 28.2. Interfaces Type.8792/8793 Input for process...
Page 186: Changing.the.operating.state
28.4. Safety settings if the bus fails The position is approached which corresponds to the set-point value last transferred (default setting). Other setting options (see chapter “30.3. BUS.COMM – Settings on Type 8792/8793”. 28.5. Bus status display The bus status is indicated on the display on the device.
Page 187: Electrical.connections
Type 8792, 8793 PROFIBUS DP 29. ELECTRICAL CONNECTIONS DANGER! Risk.of.injury.due.to.electrical.shock. ▶ Before reaching into the device or the equipment, switch off the operating voltage and secure to prevent reactivation. ▶ Observe applicable accident prevention and safety regulations for electrical equipment. WARNING! Risk.of.injury.from.improper.installation.
Page 188: Connection.diagram.type.8792
X2 - M12, 5-pole socket *. circular connector * Functional earth FE *. (inversely coded, PROFIBUS DP) Figure 116: Connection PROFIBUS DP, positioner Typ 8792 29.2. Connection diagram Type 8793 X1 - M12, 8-pole X5 - M8, 4-pole circular connector circular connector X3 - M12, 5-pole...
Page 189: X1.-.M12,.8-Pole.circular.connector
Type 8792, 8793 PROFIBUS DP 29.3. X1 - M12, 8-pole circular connector On.the.device. Configuration External.circuit./.Signal.level side not used not used Operating.voltage 24 V DC ± 10% max. residual ripple 10% +24 V Input.signals.of.the.control.centre.(e.g..PLC) 0 – 5 V (log. 0) Binary input + 10 – 30 V (log. 1) Binary input –...
Page 190: X4.-.M8,.4-Pole.socket,.Optional.-.Remote.sensor.(For.remote.model.only)
Type 8792, 8793 PROFIBUS DP 29.5. X4 - M8, 4-pole socket, optional - Remote Sensor (for remote model only) Connection of the digital, contact-free position sensor Type 8798: On.the.device. Configuration External.circuit side Supply sensor + Remote Sensor Supply sensor – S – – Type 8798 Serial interface, A cable A cable digital Serial interface, B cable B cable Table 104: Plug assignments;...
Page 191: X5.-.M8,.4-Pole.circular.connector.-.Process.actual.value.(Type.8793.Only)
Type 8792, 8793 PROFIBUS DP 29.6. X5 - M8, 4-pole circular connector - process actual value (Type 8793 only) Wire. DIP. On.the. Input.type* Pin Configuration External.circuit colour.** switches*** device.side 4 – 20 mA brown +24 V transmitter supply - internally white Output from transmitter Transmitter supplied blue GND (identical with the GND...
Page 192: Start-Up.profibus.dp
Before start-up, carry out fluid installation (see Chapter “13”) and electrical installation (Chapter “29”) of Type 8792/8793 and of the valve. 30.2. Start-up sequence For start-up of Type 8792/8793 PROFIBUS DP the following basic settings are required: Device.type Sequence Type.of.basic.setting Setting.via Description.
Page 193: Bus.comm - Settings On Type 8792/8793
Type 8792, 8793 PROFIBUS DP 30.3. BUS.COMM – Settings on Type 8792/8793 Set the following menu options in the BUS.COMM menu for start-up of the PROFIBUS DP: Enter.a.device.address.(value between 0 and 126) Address 0 Activate.or.deactivate.approach.of.the.safety.position BUS FAIL Selection SafePos off – The actuator remains in the position which corresponds to the set-point value last transferred (default setting).
Page 194 Type 8792, 8793 PROFIBUS DP Input device address. BUS.COMM ENTER Address INPUT Enter Adjustment range: 0 ... 126 value SELEC SafePos off Activating / BUS FAIL ENTER deactivating approach of the SafePos on EXIT safety position Setting.of.BUS.PDI.and.BUS.PDO.is.made.via.GSD.file SELEC ENTER Position...
Page 195: Configuration.via.the.control.(Profibus.dp.master)
PROFIBUS DP More detailed information can be found in the supplementary instructions on the Bürkert homepage: • „Configuration on the PROFIBUS by means of GSD file“ www.burkert.com → Type 8792 or Type 8793 → Config. PROFIBUS by GSD-file 30.4.2. Configuration of the process values →...
Page 196 PDI:PV and PDI:SP can be selected for Type 8793 (process controller) only and are beneficial only when process controller activated. PDI:PCONact can be selected for Type 8793 (process controller) only. → Then the PDO (Process Data Output) input. PDO: Process.Data.Output (from the controller to the Type 8792/8793) Name Description Identifier PDO:CMD/...
Page 197 Type 8792, 8793 PROFIBUS DP Name Description Identifier PDO:MODE Operating state (operation mode) GSD file: PDO:MODE Value range 0, 1 or 12: Identifier (HEX): 81, 00, 16 0: AUTO 1: MANU 12: BUSSAFEPOS If the value is too small or too large, the last valid value is used and is indicated in ERR with HEX 16.
Page 198: Configuration.with.siemens.step7
Figure 119: ScreenShot PROFIBUS → Pull the slave Type 8792 / 8793 onto the bus line with drag-and-drop. Figure 120: ScreenShot positioner → Pull the modules PDI:POS and PDO:CMD/SP into the slave Type 8792 / 8793 with drag-and-drop. english...
Page 199: Example 2 Of A Process Controller (Type 8793): Transfer Of Several Process Values
30.5.2. Example 2 of a process controller (Type 8793): Transfer of several process values Figure 121: ScreenShot PROFIBUS → Pull the slave Type 8792 / 8793 onto the bus line with drag-and-drop. Figure 122: ScreenShot process controller → Pull the modules into the slave Type 8792 / 8793 with drag-and-drop. english...
Page 200: Devicenet
32.7.. Terminating.circuit.for.DeviceNet.systems......................211 32.8.. Network.topology.of.a.DeviceNet.system......................211 START-UP.DEVICENET................................212 33.. 33.1.. Safety.instructions................................212 33.2.. Start-up.sequence................................212 33.3. B US.COMM – Settings.on.Type.8792/8793....................213 33.4.. Configuration.of.the.process.data........................... 215 33.4.1. Static input assemblies ....................... 215 33.4.2. Static output assemblies ......................217...
Page 201 Type 8792, 8793 DeviceNet 33.5.. Configuration.example.1............................... 218 33.5.1. Installation of the EDS file ......................218 33.5.2. Address assignment ........................218 33.5.3. Offline parameterization of the Device ..................219 33.5.4. Online parameterization of the Device ..................220 33.6.. Configuration.example.2............................... 221 33.6.1.
Page 202: Description
(slaves) to be networked with higher-level controllers (master). • The Type 8792/8793 in the DeviceNet is a slave device according to the Predefined Master/Slave Connection Set stipulated in the DeviceNet specification. Polled I/O, Bit Strobed I/O and Change of State (COS) are sup- ported as an I/O connection variant.
Page 203: Interfaces
* only for process controller Type 8793 Figure 123: DeviceNet interfaces 31.4. Safety settings if the bus fails The position is approached which corresponds to the set-point value last transferred (default setting). Other setting options (see chapter “33.3. BUS.COMM – Settings on Type 8792/8793”). english...
Page 204: Bus.status.display
Type 8792, 8793 DeviceNet 31.5. Bus status display The bus status is indicated on the display on the device. Display Device.status Explanation Troubleshooting (is displayed approx. every 3 seconds) • Check whether the baud Device is not connected to the rate has been correctly set bus.
Page 205: Differences.between.the.field.bus.devices.and.devices.without.a.field.bus
Type 8792, 8793 DeviceNet 31.6. Differences between the field bus devices and devices without a field bus The.following.chapters.of.these.operating.instructions.are.not.valid.for.Type.8792/8793.with.DeviceNet. • Section “Installation” Chapter “14. Electrical connection - Circular plug-in connector version (multi-pole version)” Chapter “15. Electrical connection - Terminal version for cable gland” • Section “Start-up” Chapter “23.1. INPUT - Setting the input signal”...
Page 206: Electrical.connections
Type 8792, 8793 DeviceNet 32. ELECTRICAL CONNECTIONS DANGER! Risk.of.injury.due.to.electrical.shock. ▶ Before reaching into the device or the equipment, switch off the operating voltage and secure to prevent reactivation. ▶ Observe applicable accident prevention and safety regulations for electrical equipment. WARNING! Risk.of.injury.from.improper.installation.
Page 207: Connection.diagram.type.8792
X3 - M12, 5-pole circular connector Function earth FE Figure 124: Connection Device-Net, positioner Type 8792 32.2. Connection diagram Type 8793 X1 - M12, 8-pole X5 - M8, 4-pole circular circular connector connector X3 - M12, 5-pole X4.- M8, 4-pole socket,...
Page 208: X1.-.M12,.8-Pole.circular.connector
Type 8792, 8793 DeviceNet 32.3. X1 - M12, 8-pole circular connector On.the.device. Configuration External.circuit./.Signal.level side not used not used Operating.voltage 24 V DC ± 10% max. residual ripple 10% +24 V Input.signals.of.the.control.centre.(e.g..PLC) 0 – 5 V (log. 0) Binary input + 10 – 30 V (log. 1) Binary input –...
Page 209: X4.-.M8,.4-Pole.socket,.Optional.-.Remote.sensor.(For.remote.model.only)
Type 8792, 8793 DeviceNet 32.5. X4 - M8, 4-pole socket, optional - Remote Sensor (for remote model only) Connection of the digital, contact-free position sensor Type 8798: On.the.device. Configuration External.circuit side Supply sensor + Remote Sensor Supply sensor – S – – Type 8798 Serial interface, A cable A cable digital Serial interface, B cable B cable Table 116: Plug assignments;...
Page 210: X5.-.M8,.4-Pole.circular.connector.-.Process.actual.value.(Type.8793.Only)
Type 8792, 8793 DeviceNet 32.6. X5 - M8, 4-pole circular connector - process actual value (Type 8793 only) Wire. DIP. On.the. Input.type* Pin Configuration External.circuit colour.** switches*** device.side 4 – 20 mA brown +24 V transmitter supply - internally white Output from transmitter Transmitter supplied blue GND (identical with the GND...
Page 211: Terminating.circuit.for.devicenet.systems
Type 8792, 8793 DeviceNet 32.7. Terminating circuit for DeviceNet systems When installing a DeviceNet system, ensure that the terminating circuit of the data lines is correct. The circuit prevents the occurrence of interference caused by signals reflected onto the data lines. The trunk line must be terminated at both ends with resistors of 120 Ω...
Page 212: Start-Up.devicenet
Before start-up, carry out fluid installation (see Chapter “13”) and electrical installation (Chapter “32”) of Type 8792/8793 and of the valve. 33.2. Start-up sequence The following basic settings are required for start-up of the DeviceNet version of Type 8792/8793: Device.type Sequence Type.of.basic.setting Setting.via...
Page 213: Bus.comm - Settings On Type 8792/8793
Type 8792, 8793 DeviceNet 33.3. BUS.COMM – Settings on Type 8792/8793 Set the following menu options in the BUS.COMM menu for start-up of the DeviceNet version: Enter.a.device.address.(value between 0 and 63) Address 0 Selection.of.the.baud.rate BAUD RATE • The baud rate can be changed either by pressing the operator keys on the device or via the bus.
Page 214 Type 8792, 8793 DeviceNet Action Description Select BAUD RATE The input screen is opened. ENTER Press Select baud rate 125 kBd / 250 kBd / 500 KBd SELEC Press The selection is now marked by a filled circle Return to BUS.COMM.
Page 215: Configuration.of.the.process.data
Type 8792, 8793 DeviceNet 33.4. Configuration of the process data The following components are required for the configuration: • Software suitable for the configuration. For example RSNetWorx for DeviceNet (Rev. 4.12.00). • ESD file (is on the supplied CD) Implementation of the configuration process is described in the following chapters “33.5. Configuration example 1”...
Page 216 Type 8792, 8793 DeviceNet The addresses indicated in “Table 121” can be used as a path data for the attribute Produced Connection Path of an I/O connection. The attributes described in more detail in the following “Table 122”can be transferred as input process data via this I/O connection.
Page 217: Static Output Assemblies
Type 8792, 8793 DeviceNet 33.4.2. Static output assemblies Name Address of data attribute of the assemblies Format of the for read access. Class, Instance, Attribute data attribute INP (factory setting) 4, 21, 3 Byte 0: INP low Byte 1: INP high 4, 22, 3...
Page 218: Configuration.example.1
• The address can be set by pressing the operator keys on the device to the required value within the range 0 – 63 (see chapter “33.3. BUS.COMM – Settings on Type 8792/8793”). • with the aid of the Tools Node Commissioning belonging to RSNetWorx the address of connected devices can be changed via the bus.
Page 219: Offline Parameterization Of The Device
Type 8792, 8793 DeviceNet 33.5.3. Offline parameterization of the Device When a device has been inserted into the DeviceNet configuration of RSNetWorx, the device can be parameterized offline. “Figure 129” indicates how, for example, an input assembly which deviates from the factory setting (input process data can be transferred via I/O connection) can be selected.
Page 220: Online Parameterization Of The Device
Type 8792, 8793 DeviceNet 33.5.4. Online parameterization of the Device Devices can also be parameterized online. In doing so, you can also select whether only individual parameters (single) or all parameters (all) of a group are read from the device (upload) or are loaded into the device (download).
Page 221: Configuration.example.2
Type 8792, 8793 DeviceNet 33.6. Configuration example 2 This example describes the principle procedure for setting up the process image of a DeviceNet master/scanner using the software RSNetWorx for DeviceNet (Rev. 4.12.00). Setting.up.the.scan.list.and.setting.the.I/O.parameters → First of all set up the scan list of the DeviceNet master/scanner.
Page 222: Setting Up The Process Image (Mapping)
Type 8792, 8793 DeviceNet 33.6.1. Setting up the process image (Mapping) The AUTOMAP function is used to assign the input data of the devices specified in the scan list to the process image of the DeviceNet master/scanner. In our example this is how the assignment indicated in “Figure 132” results.
Page 223: Maintenance And Troubleshooting
Type 8792, 8793 Maintenance and Troubleshooting onTenTs 34.. MAINTENANCE....................................224 35.. ERROR.MESSAGES.AND.MALFUNCTIONS........................224 35.1.. Error.messages.on.the.display..........................224 35.1.1. General error messages ......................224 35.1.2. Error and warning messages while the X.TUNE function is running ......225 35.1.3. Error messages while the P.Q’LIN function is running ............. 226 35.1.4.
Page 224: Maintenance
Type 8792, 8793 Maintenance and Troubleshooting 34. MAINTENANCE The.Type.8792/8793.is.maintenance-free.when.operated.according.to.the.instructions.in.this.manual. 35. ERROR MESSAGES AND MALFUNCTIONS 35.1. Error messages on the display 35.1.1. General error messages Display Causes.of.error Remedial.action Minimum input value has been reached Do not reduce value further Maximum input value has been reached Do not increase value further...
Page 225: Error And Warning Messages While The X.tune Function Is Running
Type 8792, 8793 Maintenance and Troubleshooting 35.1.2. Error and warning messages while the X.TUNE function is running Display Causes.of.error Remedial.action TUNE Manual termination of self-parameterization err/break by pressing the EXIT X.TUNE locked The X.TUNE function is blocked Input access code X.TUNE No compressed air connected Connect compressed air ERROR 1 X.TUNE...
Page 226: Error Messages While The P.q'lin Function Is Running
Type 8792, 8793 Maintenance and Troubleshooting 35.1.3. Error messages while the P.Q’LIN function is running Display Cause of fault Remedial action Q.LIN Manual termination of linearization by err/break pressing the EXIT key. P.Q‘LIN No supply pressure connected. Connect supply pressure. ERROR 1 No change to process variable.
Page 227: Error Messages On Field Bus Devices
Type 8792, 8793 Maintenance and Troubleshooting 35.1.5. Error Messages on Field Bus Devices Display Causes.of.error Remedial.action MFI fault Field bus board defective. Not possible, device defective. Table 129: Error Messages on Field Bus Devices On.DeviceNet: Display Device.status Explanation Troubleshooting (is displayed approx. every 3 seconds) •...
Page 228: Other.faults
Type 8792, 8793 Maintenance and Troubleshooting 35.2. Other faults Problem Possible.causes Remedial.action POS = 0 (when CMD > 0%) or Sealing function (CUTOFF) has been unin- Deactivate sealing POS = 100%, (when CMD < 100%) tentionally activated function. PV = 0 (when SP > 0) or PV = PV (when SP >...
Page 229: Packaging, Storage, Disposal
Type 8792, 8793 Packaging, Storage, Disposal onTenTs 36.. PACKAGING.AND.TRANSPORT............................. 229 37.. STORAGE......................................229 DISPOSAL......................................229 38.. english...
Page 230 Type 8792, 8793 Packaging, Storage, Disposal 36. PACKAGING AND TRANSPORT NOTE! Transport.damages. Inadequately protected equipment may be damaged during transport. • During transportation protect the device against wet and dirt in shock-resistant packaging. • Avoid exceeding or dropping below the allowable storage temperature.
Page 231: Additional Technical Information
Type 8792, 8793 Additional technical information onTenTs 39.. SELECTION.CRITERIA.FOR.CONTINUOUS.VALVES....................231 40.. PROPERTIES.OF.PID.CONTROLLERS..........................233 40.1.. P-portion....................................233 40.2.. I-portion....................................234 40.3.. D-portion....................................235 40.4.. Superposition.of.P,.I.and.D.Portions........................236 40.5.. Implemented.PID.controller............................237 40.5.1. D Portion with delay ........................237 40.5.2.
Page 232 Type 8792, 8793 Additional technical information 39. SELECTION CRITERIA FOR CONTINUOUS VALVES The following criteria are crucial for optimum control behavior and to ensure that the required maximum flow is reached: • the correct selection of the flow coefficient which is defined primarily by the orifice of the valve;...
Page 233 Type 8792, 8793 Additional technical information The k value of the continuous valve should have at least the value which is calculated according to equation (1) or (2) which is appropriate to the application, however it should never be far above the calcu- lated value.
Page 234: Properties.of.pid.controllers
Type 8792, 8793 Additional technical information 40. PROPERTIES OF PID CONTROLLERS A PID controller has a proportional, an integral and a differential portion (P, I and D portion). 40.1. P-portion Function: Kp is the proportional coefficient (proportional gain). It is the ratio of the adjusting range ∆Y to the proportional range ∆Xd.
Page 235: I-Portion
Type 8792, 8793 Additional technical information 40.2. I-portion Function: ∫ Ti is the integral action time or actuating time. It is the time which passes until the actuating variable has run through the whole adjustment range. Characteristic.and.step.response.of.the.I.portion.of.a.PID.controller Ymax Ymin Characteristic...
Page 236: D-Portion
Type 8792, 8793 Additional technical information 40.3. D-portion Function: ⋅ Kd is the derivative action coefficient. The larger Kd is, the greater the D-effect is. Characteristic.and.step.response.of.the.D-portion.of.a.PID.controller Step response Ramp response Figure 135: Characteristic and step response of the D portion of a PID controller...
Page 237: Superposition.of.p,.I.and.d.portions
Type 8792, 8793 Additional technical information 40.4. Superposition of P, I and D Portions Function: ∫ ⋅ Where Kp · Ti = Tn and Kd/Kp = Tv the function of the PID controller is calculated according to the following equation: ∫ ⋅ Proportional coefficient / proportional gain...
Page 238: Implemented.pid.controller
Type 8792, 8793 Additional technical information 40.5. Implemented PID controller 40.5.1. D Portion with delay In the process controller Type 8793 the D portion is implemented with a delay T. Function: ⋅ ⋅ Superposition.of.P,.I.and.DT.Portions Figure 137: Characteristic of superposition of P, I and DT Portions 40.5.2. Function of the real PID controller...
Page 239: Adjustment.rules.for.pid.controllers
Type 8792, 8793 Additional technical information 41. ADJUSTMENT RULES FOR PID CONTROLLERS The control system Type 8793 features a self-optimization function for the structure and parameters of the integrated process controller. The determined PID parameters can be seen via the operating menu and re-optimized at will for an empirical path.
Page 240 Type 8792, 8793 Additional technical information The controller parameters can then be calculated from K and T according to the following table. krit krit Adjustment.of.the.parameters.according.to.Ziegler.and.Nichols Controller type Adjustment of the parameters P controller Kp = 0.5 K krit PI controller Kp = 0.45 K...
Page 241 Type 8792, 8793 Additional technical information 41.2. Adjustment rules according to Chien, Hrones and Reswick (actuating variable jump method) With this method the controller parameters are adjusted on the basis of the transient behavior of the controlled system. An actuating variable jump of 100% is output. The times Tu and Tg are derived from the progress of the actual value of the control variable.
Page 242 Type 8792, 8793 Additional technical information Adjustment.of.the.parameters.according.to.Chien,.Hrones.and.Reswick Adjustment of the parameters Controller type for aperiodic control process for control process (0% overshoot) with 20% overshoot Reference Malfunction Reference Malfunction P controller Kp = 0,3 · Kp = 0,3 · Kp = 0,7 ·...
Page 243 Type 8792, 8793 Tables for customer-specific settings onTenTs 42.. TABLE.FOR.YOUR.SETTINGS.ON.THE.POSITIONER....................243 42.1.. Settings.of.the.freely.programmable.characteristic..................243 TABLE.FOR.YOUR.SETTINGS.ON.THE.PROCESS.CONTROLLER.TYPE.8793..........244 43.. 43.1.. Set.parameters.of.the.process.controller......................244 english...
Page 244: Tables For Customer-Specific Settings
Type 8792, 8793 Tables for customer-specific settings 42. TABLE FOR YOUR SETTINGS ON THE POSITIONER 42.1. Settings of the freely programmable characteristic Node (position Valve stroke [%] set-point Date: Date: Date: Date: value as %) english...
Page 245 Type 8792, 8793 Tables for customer-specific settings 43. TABLE FOR YOUR SETTINGS ON THE PROCESS CONTROLLER TYPE 8793 43.1. Set parameters of the process controller Date: Date: Date: Date: DBND PVmin PVmax SPmin SPmax UNIT K factor FILTER english...
Page 246 www.burkert.com...

This manual is also suitable for:

8793

Burkert 8792 Operating Instructions Manual

Table of Contents

Description of System

Installation

Safety.instructions

Attachment.and.assembly

Attachment.to.a.continuous.valve.with.linear.actuators.according.to.namur

Attachment.to.a.continuous.valve.with.rotary.actuator

Remote.operation.with.external.position.sensor

Safety.instructions

Pneumatic.connection

Electrical.connection

Type.8792.-.Designation.of.the.circular.plug-In.connectors

Connection.of.the.positioner.type.8792

Type.8793.-.Designation.of.the.circular.plug-In.connectors.and.contacts

Connecting.the.process.controller.type.8793

Connection.board.of.the.type.8792/8793.With.screw-Type.terminals

Electrical.connection.-.Terminal.version.for.cable.gland

Terminal.assignment.for.cable.gland.-.Positioner.type.8792

Terminal.assignment.for.cable.gland.-.Process.controller.type.8793

Operation

Start-Up

Start-Up.sequence

Safety.instructions

Basic.setting.of.the.device

INPUT.-.Setting.the.input.signal

X.TUNE.-.Automatic.adjustment.of.the.positioner

Activation.of.the.process.controller

Basic.setting.of.the.process.controller

PID.PARAMETER.-.Parameterizing.the.process.controller

P.Q'LIN.-.Linearization.of.the.process.characteristic

Auxiliary Functions

Activating.and.deactivating.auxiliary.functions

Configuring.the.auxiliary.functions

Overview.and.description.of.the.auxiliary.functions

Manual.configuration.of.X.tune

Profibus Dp

Devicenet

Quick Links

Chapters

Related Manuals for Burkert 8792

Summary of Contents for Burkert 8792