Burkert eCONTROL 8611 Operating Instructions Manual
  1. Manuals
  2. Brands
  3. Burkert Manuals
  4. Controller
  5. eCONTROL 8611
  6. Operating instructions manual

Burkert eCONTROL 8611 Operating Instructions Manual

Process controller and ratio controller
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Type 8611
eCONTROL
Process controller and Ratio controller
Operating Instructions
(Valid from software version B02)

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the eCONTROL 8611 and is the answer not in the manual?

Questions and answers

Related Manuals for Burkert eCONTROL 8611

Summary of Contents for Burkert eCONTROL 8611

  • Page 1 Type 8611 eCONTROL Process controller and Ratio controller Operating Instructions (Valid from software version B02)
  • Page 2 We reserve the right to make technical changes without notice. Technische Änderungen vorbehalten. Sous réserve de modification technique. © Bürkert SAS , 2010-2024 Operating Instructions 2409/07_EUen_00805625 / Original DE...

  • Page 3: Table Of Contents

    Type 8611 eCONTROL 8611: Process Controller and Ratio Controller ontents OPERATING INSTRUCTIONS ................. 6 1.1. Definition of the term device ......................6 Symbols ............................6 1.2. AUTHORIZED USE ....................7 2.1. Restrictions ..........................7 Predictable Misuse........................7 2.2. BASIC SAFETY INSTRUCTIONS ................8 GENERAL INFORMATION ..................9 4.1. Contact Addresses ........................9 Warranty ............................9...
  • Page 4 Type 8611 Attachment to a proportional valve ...................17 7.2. 7.3. Assembly of the control cabinet model ..................18 ELECTRICAL INSTALLATION ................20 8.1. Electrical installation for fitting assembly, wall assembly, valve assembly or rail assembly models ........................20 8.2. Electrical installation of the control cabinet model ..............24 OPERATION AND FUNCTION ................27 9.1. Control and display elements ....................27 Operating levels and operating states ..................28 9.2. 9.3. Function of the keys ........................29 OPERATING STRUCTURE ................... 30 10.1. Operating structure of the process operating level in MANUAL operating state ......30 10.2. Operating structure of the configuration level ................31 FUNCTIONS OF THE PROCESS OPERATING LEVEL ...........
  • Page 5 Type 8611 12.5. SETP / RFAC - S election and scaling of set-point value default / entry of ratio factor ...62 12.6. S_IN - S caling of sensor input signal (4 - 20 mA or 0 - 10 V) ................64 12.7. AOUT - S caling of analog output (4 - 20 mA or 0 - 10 V)................65 12.8. C ALI - C alibration of the analog inputs and outputs ..............67 12.9. Calibration of the assembly models: Wall, rail, valve or fitting assembly ....................68 12.10. Calibration of the control cabinet model ...................69 12.11. KFAC - E ntry of K-factor for flow-rate measurement ..............70 12.12. FILT - F iltering of the process actual value input ..............72 12.13. PARA - Adjusting the controller parameters ................73 12.14. B_IN - C onfiguration of binary input ..................83 12.15. B_O1 - C onfiguration of the binary output ................84...

  • Page 6: Operating Instructions

    Type 8611 Operating Instructions OPERATING INSTRUCTIONS The Operating Instructions describes the entire life cycle of the device. Please keep the Operating Instruc- tions in a safe place, accessible to all users and any new owners. The Operating Instructions contains important safety information Failure to comply with these instructions can lead to hazardous situations. Pay attention in particular to the chapters “3. Basic Safety Instructions” and “2. Authorized use”. • Irrespective of the device variant, the Operating Instructions must be read and understood. 1.1. Definition of the term device The term device that is used in these Operating Instructions refers to the Type 8611 eCONTROL process and ratio controller. 1.2. Symbols DANGER Warns of an immediate danger! • Failure to observe the warning will result in a fatal or serious injury. WARNING Warns of a potentially dangerous situation! •...

  • Page 7: Authorized Use

    Type 8611 Authorized use AUTHORIZED USE Non-authorized use of the process controller Type 8611 may be a hazard to people, nearby equipment and the environment. • The process controller is intended for controlling the process variables for pressure, temperature or flow-rate in conjunction with a proportional or process valve and a sensor. • Do not use the device outdoors. • Use according to the authorized data, operating conditions and conditions of use specified in the contract documents and operating instructions. These are described in the chapter entitled "Technical Data". • The device may be used only in conjunction with third-party devices and components recommended and authorized by Bürkert. • Correct transportation, correct storage and installation and careful use and maintenance are essential for reliable and faultless operation. •...

  • Page 8: Basic Safety Instructions

    Type 8611 Basic Safety Instructions BASIC SAFETY INSTRUCTIONS These safety instructions do not make allowance for any • contingencies and events which may arise during the installation, operation and maintenance of the devices. • local safety regulations – the operator is responsible for observing these regulations, also with reference to the installation personnel. General Hazardous Situations. To prevent injury, ensure that: • any installation work may be carried out by authorized technicians and with the appropriate tools only. • after an interruption in the power supply or pneumatic supply, ensure that the process is restarted in a defined or controlled manner. • the device may be operated only when in perfect condition and in consideration of the operating instructions. • the general rules of technology apply to application planning and operation of the device. NOTICE Electrostatic sensitive components / modules! The device contains electronic components, which react sensitively to electrostatic discharge (ESD). Contact with electrostatically charged persons or objects is hazardous to these components. In the worst case scenario, they will be destroyed immediately or will fail after start-up. • Observe the requirements in accordance with EN 61340-5-1 and 5-2 to minimize or avoid the possibility of damage caused by sudden electrostatic discharge! •...

  • Page 9: General Information

    Type 8611 General Information GENERAL INFORMATION 4.1. Contact Addresses To contact the manufacturer of the device, use following address: Burkert SAS Rue du Giessen BP 21 F-67220 TRIEMBACH-AU-VAL You may also contact your local Burkert sales office. The addresses of our international sales offices are available on the internet at: country.burkert.com 4.2. Warranty The warranty is only valid if the device is used as intended in accordance with the specified application conditions. 4.3. Information on the Internet The operating instructions and data sheets for Type 8611 can be found on the Internet at: country.burkert. english...

  • Page 10: System Description

    Type 8611 System Description SYSTEM DESCRIPTION 5.1. General Description The process controller Type 8611 is designed for integration in a closed control circuit and can be used for numerous control tasks in fluid technology. The figure below illustrates the integration of the controller in a closed control circuit. Controlled system Controller 8611 Set-point SP Manipulated Controlled (set-point value) variable MV variable Actuating Sensor Process element Feedback process actual value (PV) Figure 1: Block diagram of a closed control circuit 5.1.1. Interfaces of the process controller Type 8611 Depending on the controlled system and process, different controller structures and different inputs/outputs are available for measuring the process actual value and for controlling the actuating elements. The diagram below shows the available interfaces of the process controller.

  • Page 11: Functions

    Type 8611 System Description 5.2. Functions The following control tasks can be executed with the process controller Type 8611 eCONTROL. • Fixed command control (single-loop control circuit) • Sequential control (external set-point value) • Ratio control • Cascade control Standard signals (current / voltage) and frequency-analog signals can optionally be applied or resistance thermometers (Pt 100) can be connected to the scalable controller inputs. Outputs for continuous standard signals (current / voltage) or transistor outputs can be used as controller outputs. Valves or other switching actuators can be operated via the transistor outputs. One binary output and up to 2 binary outputs for auxiliary functions are additionally provided. 5.3. The various mounting and installation models The process controller Type 8611 is available in the following models (see also chapter “7.1. Assembly models”): •...

  • Page 12: Technical Data

    Type 8611 Technical Data TECHNICAL DATA 6.1. Operating Conditions Permitted ambient temperature: (operation and storage) 0 ... +70 °C Max. permitted humidity: ≤ 80 %, non condensing Protection class: IP65 to EN 60529 6.2. Conformity with the following standards CE mark conforms to EMC Directive: EN61326 6.3. General Technical Data Materials Housing, cover: PC, + 20 % glass fiber Front plate foil: Polyester Screws: Stainless steel Multipin: CuZn, nickel-plated Wall assembly bracket: Assembly Installation position: Any position...

  • Page 13: Rating Plate Description

    Type 8611 Technical Data 6.4. Rating plate description The rating plate contains important technical data for the specific device. The structure of the rating plate is described below by way of example. 6.4.1. Rating plate of the controllers for wall, rail, valve or fitting assembly Controller type Assembly model Example: - Wall (wall assembly) - Rail (rail assembly) - Valve (assembly directly on valve) - Fitting (assembly directly on flow-rate fitting) Power supply voltage 8611 Wall 24VDC Sensor input signal (Norm, Pt 100 or Freq (NPN)) IN:Norm OUT:Norm...

  • Page 14: Electrical Data

    Type 8611 Technical Data 6.5. Electrical Data Operating voltage: 24 V DC ±10 %, filtered and controlled Power consumption w ithout load: approx. 2 W with load: maximum 48 W 100 % ED: 36 W Controller sampling rate: 300 Hz 6.5.1. Inputs Set-point value Standard 4 - 20 mA I nput impedance: 70 Ω Resolution: 5.5 µA Standard 0 - 10 V I nput impedance: 11.5 kΩ Resolution: 2,5 mV Sensors Standard 4 - 20 mA I nput impedance: 70 Ω Resolution: 5.5 µA Frequency Input 1 E xternal sensor Frequency range:...
  • Page 15 Type 8611 Technical Data 6.5.2. Outputs Continuous signal S tandard signal 4 - 20 mA Max. loop resistance: 680 Ω Precision: 0.5 % S tandard signal 0 - 10 V Maximum current: 20 mA Precision: 0.5 % Discontinuous signal 2 transistor outputs for PWM or PTM control Control frequency: 20...9999 Hz Max. resolution: 16 bit (depending on frequency) Max. current per unit area: 1.5 A Switching voltage: 24 V DC Binary output T ransistor output (PNP) configurable Max. current per unit area: 1.5 A Switching voltage: 24 V DC Sensor supply: 24 V DC Total load for all outputs: 1,5 A english...

  • Page 16: Assembly

    Type 8611 Assembly ASSEMBLY 7.1. Assembly models Attachment to a Bürkert flow-rate fitting Attachment to a proportional valve Bürkert flow-rate fitting Type SO30 Installation in a control cabinet Wall assembly or rail assembly  The description of the installation in a control cabinet and the device dimensions can be found in the following chapter “7.3. Assembly of the Adapter Adapter control cabinet model”. for wall assembly for rail assembly Table 1: Assembly models...

  • Page 17: Attachment To A Proportional Valve

    Type 8611 Assembly 7.2. Attachment to a proportional valve Attach the process controller Type 8611 to a proportional valve as described below. → Loosen the 4 screws at the front of the process controller. NOTICE Be careful when opening the process controller so as not to damage the internal cabling. • Remove the cover carefully from the housing without jerks. → Remove the cover carefully from the housing. → Place the supplied flat seal over the contact tabs. → Attach the housing of the process controller on the contact tabs and fasten with the valve screw. → Check the correct position of the profile gasket at the housing of the process controller. → Place cover on the housing of the process controller and fasten with 4 screws. If necessary, the cover can also be mounted in a position rotated by 90 ° to the left or the right.

  • Page 18: Assembly Of The Control Cabinet Model

    Type 8611 Assembly 7.3. Assembly of the control cabinet model 7.3.1. Device dimensions and control panel cut-out 54.2 44.5 Control panel cut-out for the installation Figure 6: Device dimensions and control panel cut-out english...
  • Page 19 Type 8611 Assembly 7.3.2. Installation in a control cabinet • Prepare control panel cut-out with the dimensions 45mm x 45mm (corner radius 3mm). • Place the supplied seal on the housing. • Insert the controller from the front into the control panel cut-out. • From the rear, snap the 4 supplied fastening elements into place and fasten using a screwdriver. 4 F astening elements Seal Figure 7: Installation elements Figure 8: Installed controller Recommended line cross sections for the control cabinet model: Cross section Cross section Minimum length min.

  • Page 20: Electrical Installation

    Type 8611 Electrical Installation ELECTRICAL INSTALLATION 8.1. Electrical installation for fitting assembly, wall assembly, valve assembly or rail assembly models 8.1.1. Connection versions Connector Connector view Configuration Circular plug-in Power supply voltage, connector set-point input 4 - 20 mA / 0 - 10 V, M12, 8-pole process actual value or position set-point output 4 - 20 mA / 0 - 10 binary input, binary output Note! A straight plug (female) is recommended for the connecting cable, as the alignment of the plug can vary. Circular plug-in Connection sensor connector (4 - 20 mA / 0 - 10 V, Pt 100 or frequency) M8, 3-pole...

  • Page 21: Pin Assignment

    Type 8611 Electrical Installation 8.1.2. Pin assignment Circular plug-in connector M12, 8-pole A straight connector (female) is recommended for the connecting cable as the orientation of the con- nector may vary. Connector Color Configuration diagram white 24 V DC power supply 2 (DIN2) brown Binary input (B_IN) green GND – Power supply, binary input, binary output 4 (AOUT) yellow 4 - 20 mA or 0 - 10 V analog output (process value or manipulated variable for valve) 5 (AIN2) grey 4 - 20 mA or 0 - 10 V analog input (set-point value / ratio) pink GND – Analog output blue GND – Analog input (set-point value / ratio) 8 (BO1) (+) Binary output (B_O1) Table 5: Configuration of circular plug-in connector M12, 8-pole...
  • Page 22 Type 8611 Electrical Installation Input signal Color Configuration External circuit 24 V DC brown + 24 V sensor supply Frequency 3-wire supply of Transmitter blue Type 8611 (DIN1) black Frequency input (NPN) Clock (DIN1) brown not connected Frequency 4-wire external Transmitter blue supply (DIN1) black Frequency input (NPN) Clock (DIN1) Supply brown not connected Pt 100 Pt 100 (2-wire)
  • Page 23 Type 8611 Electrical Installation Output Color Configuration External circuit signal: 1 (BO3) brown (+) Valve 1 NC / NO valve 3-point white (–) Valve 1 (MODE = blue (–) Valve 2 3P – T) NC / NO valve 4 (BO4) black (+) Valve 2 4 - 20 mA brown + 24 V DC supply (max. 1A) External supply + 24 V DC or 0 - 10 V white GND (4 - 20 mA or 0 - 10 V) (MODE =...

  • Page 24: Electrical Installation Of The Control Cabinet Model

    Type 8611 Electrical Installation 8.2. Electrical installation of the control cabinet model WARNING Risk of injury from incorrect installation! Incorrect installation can damage or destroy the Type 8611 eCONTROL. • The electrical installation may be performed by authorized electricians only! 1 2 3 4 5 6 7 8 Terminal block 1 9 10 11 12 13 14 15 16 17 18 Terminal block 2 21 22 23 24 25 26 27 Terminal block 3...
  • Page 25 Type 8611 Electrical Installation Terminal Configuration External circuit MODE = 2P – T MODE = PCV (+) Aeration valve (PCV) or or 3P – T (BO3) valve 1 (2P – T or 3P – T) (–) Aeration valve (PCV) or NC / NO valve 1 (2P – T or 3P – T) valve max. 1 A valve max. 1 A (+) Proportional valve (SCV), MODE = 3P –...
  • Page 26 Type 8611 Electrical Installation Terminal block 3 Terminal Configuration External circuit GND – Pt 100, RTD Pt 100 (0 ... 200 °C) (+) Pt 100, RTD (power supply) (AIN3) GND – Analog input A-GND (+) Process value input 4 - 20 mA / 0 - 10 V (source) (AIN1) 4 - 20 mA / 0 - 10 V A-GND GND – Sensor, actuating element 24 V DC sensor supply or 24 V DC - Out (max. 1 A) actuating element Frequency input 2 Jumper 2 Supply of 8611 (NPN or PNP) Supply of 24 V DC 12 or 24 Type 8611 for ratio control 11 or 23...

  • Page 27: Operation And Function

    Type 8611 Operation and Function OPERATION AND FUNCTION 9.1. Control and display elements The control and display element of the eCONTROL Type 8611 is equipped with 3 buttons and an LCD- Matrix display. 9.1.1. Display elements 4-character display 7-character matrix for numerical values 4-character display 14-character matrix for measuring units and parameter designations 10-segment bar graph for display of the manipulated variable in % (One Segment indicates 10 % of manipulated variable) Red LED is lit in case of an alarm Is displayed for external set-point value default Is displayed when the control is activated Indicates the operating state MANUAL Figure 10: Display elements 9.1.2. Control elements Arrow keys • Change the display at the process operating level in AUTOMATIC oper- ating state •...

  • Page 28: Operating Levels And Operating States

    Type 8611 Operation and Function 9.2. Operating levels and operating states 2 operating levels and 2 operating states AUTOMATIC and MANUAL are available for the operation and setting of the eCONTROL Type 8611. Level 1: Process operating level At level 1, the user can switch between 2 operating states AUTOMATIC and MANUAL. Operating state: AUTOMATIC: The normal control mode is executed and monitored. MANUAL: Q uick access to important functions and test functions. The operating state MANUAL is indicated on the display by a hand symbol. Level 2: Configuration level At level 2, the user can change the basic settings of the controller. After switching on the operating voltage, the controller is at the process operating level and in the AUTO- MATIC operating state. When the operating voltage is applied, the software version will light up on the display for approx. 2 seconds. If the ENTER key is pressed during these 2 seconds, the sub-version is displayed. After this, the controller is once again at the process operating level. 9.2.1. Switching between the operating levels and operating states The ENTER key is pressed to change the operating level and operating state (see Figure 11).

  • Page 29: Function Of The Keys

    Type 8611 Operation and Function 9.3. Function of the keys The device is operated using two arrow keys and one ENTER key. The function of these in respect of the operating level and the operating state is shown in Table 12 below. Operating Operating level state • Press key briefly (< 1 s): Switches to operating state Switch display between actual MANUAL AUTOMATIC value, set-point value and manipu- lated variable • Press and hold key (> 5 s): Switches to configuration level Level 1: Process Switches to Switches to the operating the next menu • Selection of menu option last menu option level option • Take over settings MANUAL Entering of values •...

  • Page 30: Operating Structure

    Type 8611 Operating Structure OPERATING STRUCTURE 10.1. Operating structure of the process operating level in MANUAL operating state T he SET menu option is Enter set-point value SET *** only displayed for process RFAC **** Enter ratio factor control. Consequently for all control variables set in the MODE BACK menu except for RATI. AIN1 TEST T he RFAC menu option **** AIN2 is only displayed for ratio AIN3 control.

  • Page 31: Operating Structure Of The Configuration Level

    Type 8611 Operating Structure 10.2. Operating structure of the configuration level Configuration level Enter access code if the code protection has been activated in the CODE menu. CODE MODE CODE FREQ RATI „0001“ NORM Select control frequency FREQ * (PWM) PT * Select control times NORM * 2P – T Select T – F control times T + F 3P –...
  • Page 32 Type 8611 Operating Structure UNIT * The display depends on the control variable set in the MODE menu (see chapter 12.3) 0.01 µS/c mS/c Ωxc Enter T he SETP menu option 4 – 20 SETP ** scaling is only displayed for RFAC *** 0 – 10 process control. Consequently for all control variables set in the MODE menu except for RATI. Enter 4 – 20 S_IN **** scaling 0 –...
  • Page 33 Type 8611 Operating Structure Select K-factor for ratio control KFAC * Q1 ** Q1 and Q2 are only displayed if frequency input (FREQ) was selected for both flow-rate sensors in ratio control. Q2 ** Enter value FREE 0.01 The display 0.01, 0.1, 1 is used for setting the decimal place. Use the display 10 for setting the multiplier 10 for the K-factor. BACK QN0.6 8081 Display value QN1.5 QN2.5 QN3.5 QN6.0 8071 Display value 100L 500L DN15 S070...
  • Page 34 Type 8611 Operating Structure Enter filter factor ( 2 - 20) FILT PARA KP2 * TREG * TN * The display depends on the control variable set in the DEAD MODE menu (see chapter 12.3) KP_T * TN_T * DE_T * ZERO is only displayed for entry INV / NO ZERO STRT * BACK B _IN HIGH HOLD SAFP HIGH PRZV ** Enter value mA **...
  • Page 35 Type 8611 Operating Structure B _O1 Selecting binary output as pulse output Enter number PULS of pulses IGAL UGAL 0.01 Selecting binary output as limit switch Enter LIMT hyteresis values Enter process FLOW limit value PRES The display depends on the control variable TEMP set in the MODE LEVL menu: (see chapter 12.3) Enter position limit DLY XXX.X...
  • Page 36 Type 8611 Operating Structure VALV MODE = SCV, 4 - 20, 0 - 10: Continuous control The display depends on the control variable set in the MODE menu (see chapter 12.3) MODE = PCV, 2P - T, 3P - T: Quasi-continuous control Enter MIN Enter MAX CODE DSPL BOTH PVAL SETP FACT Display program version U_xx Display software version B_xx xxxxx Switching to the process operating level –...

  • Page 37: Functions Of The Process Operating Level

    Type 8611 Functions of the Process Operating Level FUNCTIONS OF THE PROCESS OPERATING LEVEL 11.1. Operating state AUTOMATIC After switching on the operating voltage, the controller is at the process operating level and in the AUTOMATIC operating state. The normal control mode is executed and monitored. 11.1.1. Displays in the AUTOMATIC operating state Press the arrow keys to switch between 4 different displays for monitoring the control operation. Which of these displays should be shown as start display after applying the operating voltage can be defined in the DSPL menu (see “12.19. DSPL - Setting the display”). Display process actual value 0 2 5 . 5 8611 eCONTROL 025.5 The display of the unit depends on the selection made in...

  • Page 38: Operating State Manual

    Type 8611 Functions of the Process Operating Level 11.2. Operating state MANUAL Briefly press (< 1 s) the ENTER key to go to the MANUAL operating state. The operating state is indicated on the display by a hand symbol. 11.3. Specific menu options of process and ratio control The display of some menu options differs for the process and the ratio control. This is described in detail in the respective menu descriptions. The control type is specified by the control variable selected in the MODE menu: • Process control: is active if all control variables have been selected in the MODE menu except forRATI. • Ratio control i s active if the RATI control variable has been selected in the MODE menu (see chapter “12.3.1. RATI - Selection of external sensors for ratio control”). 11.4. Menu options in the MANUAL operating state Set-point value default for process control See chapter “11.5. SET - Set-point value default for process control”...

  • Page 39: Set - Set-Point Value Default For Process Control

    Type 8611 Functions of the Process Operating Level 11.5. SET - Set-point value default for process control In the case of process control, the set-point value default can be entered in the MANUAL operating state using the SET menu. Process control is active if all control variables have been set in the MODE menu except for RATI. Setting the set-point value default in the menu: Process operating level Enter a value between 0.00 and 9999 (depends on the decimal places selected in the UNIT menu). < 1 s 0 3 0 . 0 M enu option is only available if internal set- SET * point value default was selected (see chapter “12.5. SETP / RFAC - S election and scaling of set-point value default / entry of ratio factor”).

  • Page 40: Test - Display Of The Analog Inputs And Outputs And The Digital Inputs

    Type 8611 Functions of the Process Operating Level 11.7. TEST – Display of the analog inputs and outputs and the digital inputs The analog inputs and outputs and the digital inputs are displayed while the controller is operating. No changes can be made. Analog input 1: 4 - 20 mA or 0 - 10 V AIN1 TEST (process value Q or Q for ratio control) Analog input 2: 4 - 20 mA or 0 - 10 V AIN2 (set-point value for process or ratio control) Analog input 3: Pt 100 AIN3 (Process actual value temperature) PARA Frequency input 1 DIN1 (Process actual value flow-rate or Q for ratio control) DIN2...

  • Page 41: Para - Display And Optimization Of The Controller Parameters

    Type 8611 Functions of the Process Operating Level 11.8. PARA – Display and optimization of the controller parameters In this menu of the process operating level, the controller parameters of the running process can be opti- mized. The new controller parameters are taken over immediately after pressing the ENTER key. The detailed description of the controller parameters depending on the selected process variable can be found in chapter “11.8. PARA – D isplay and optimization of the controller parameters”. Access to this menu can be protected by a user code (see chapter “12.18. CODE - Code protection”) Enter code. The display depends on the control variable set in the MODE menu (see chapter 12.3) 0 0 0 0 KP 1 PARA CODE * KP 2 TREG Enter value VALV...

  • Page 42: Valv - Manual Opening And Closing Of The Connected Actuating Elements

    Type 8611 Functions of the Process Operating Level 11.9. VALV – Manual opening and closing of the connected actuating elements If the VALV menu option is selected, the controller is stopped and the actuating element remains in the last position. The manipulated variable can now by increased or lowered relatively to the last position by pressing the key. The display in the VALV menu option depends on the control variable set in the MODE menu: • MODE = SCV, 0 - 10, 4 - 20, 2P - T, 3P - T (Reset time T activated, T > 0) •...
  • Page 43 Type 8611 Functions of the Process Operating Level MODE = PCV, 2P - T, 3P - T (Reset time T deactivated, T = 9999) Display process value 1 5 0 VALV In the case of cascaded control, the process value and the flow-rate are displayed alternately Actuating of valve 1 (VLV1) Actuating of valve 2 (VLV2) Back to operating state AUTOMATIC Figure 25: VALV; Manual opening and closing of the actuating element Key functions Each time the key is pressed: the actuating element is operated for 40 ms...

  • Page 44: Functions Of The Configuration Level

    Type 8611 Functions of the Configuration Level FUNCTIONS OF THE CONFIGURATION LEVEL 12.1. General Description In the following description of the menu options and their operating structures, the entire software of the eCONTROL Type 8611 is explained. This complete software scope is only available for the control cabinet model of the eCONTROL Type 8611. The menu structure may vary depending on the device model (wall, valve, rail or fitting assembly). In accor- dance with the device model, only menu options that are logically purposeful for the application area can be selected. This pre-selection is made upon delivery of the controller in accordance with the chosen article number. Any changes made within the configuration level are only stored after returning to the process oper- ating level. Access to the configuration level can be protected by a code. Any unauthorized persons are thus denied access and cannot change the parameters.

  • Page 45: Menu Options Of The Configuration Level

    Type 8611 Functions of the Configuration Level 12.2. Menu options of the configuration level Selection of control variable, actuating element and process value input. MODE See Chapter 12.3 Selection of measuring units and decimal places. UNIT See chapter 12.4 Selection and scaling of set-point value default. SETP See chapter 12.5 Entry of ratio factor for ratio control (MODE = RATI).

  • Page 46: Mode - Selection Of Control Variable, Actuating Element And Process Value Input

    Type 8611 Functions of the Configuration Level 12.3. MODE - Selection of control variable, actuating element and process value input The most important basic settings of the controller are made in this menu option. The setting is done in 3 successive steps. • Selection of control variable (e.g. flow-rate control, pressure control, etc.) • Selection of actuating element (e.g. proportional valve, process valve, etc.) • Selection of process value input (e.g. 4 - 20 mA, frequency, etc.) The MODE menu option is at the configuration level. To go there, press and hold the ENTER key (> 5 s) (see chapter “9.2. Operating levels and operating states”). How the settings are made in the menu is explained below. Configuration level Enter access code if the code protection has been activated in the CODE menu. CODE If you have forgotten the code→see chapter “12.18.1. If you have forgotten the code”...
  • Page 47 Type 8611 Functions of the Configuration Level MODE Selection of control variable Selection of actuating element Continuous control using proportional Select valve and selection of PWM frequency PWM frequency (see chapter 12.3.2) Quasi-continuous control Select control using process valve times (see chapter 12.3.3) Quasi-continuous 3-state control Select control 3P – T with time-proportional control for times operating opening or closing principle (see chapter 12.3.6) Quasi-continuous 2-state control Select control 2P –...
  • Page 48 Type 8611 Functions of the Configuration Level 12.3.1. RATI - Selection of external sensors for ratio control A ratio control can easily be implemented by combining the compact controller Type 8611 with flow-rate fitting S030 and a second flow-rate sensor. In a ratio control, the controlled flow-rate Q is adapted to the uncontrolled flow-rate Q so that it corresponds to a specified mixture ratio. The flow-rate is measured f or Q using the Bürkert flow-rate fitting of Type S030 for Q using a second external flow-rate sensor. The following relation exists between Q and Q = RFAC · Q : controlled flow-rate : uncontrolled flow-rate RFAC: r atio factor (in %) (for selection see chapter “11.6. RFAC - Ratio factor default for ratio control”) Example of a ratio control:...
  • Page 49 Type 8611 Functions of the Configuration Level Settings in the menu: 0 0 0 1 MODE CODE Selection of control Selection of decimal Select frequency input for variable place DP R sensor input Q 0 . 1 RATI FREQ DP R 0 . 0 1 Select standard signal for DP R sensor input Q...
  • Page 50 Type 8611 Functions of the Configuration Level Schematic representation: Control cabinet model Frequency input 8611 (FREQ) 4 - 20 mA Flow-rate Q Flow-rate Q controlled uncontrolled Controller setting: MODE = RATI, NORM, SCV, FREQ Fluid mixture Figure 30: Schematic representation; Ratio control using control cabinet model of Type 8611 12.3.2. SCV - Continuous control using proportional valve The settings of the eCONTROL Type 8611 are made in this menu if a proportional valve is used. It is very important and crucial for a good control that the control frequency (PWM frequency) is set according to the selected valve type.
  • Page 51 τ 60 % 100 % Pulse duty factor Figure 31: PWM frequency / pulse duty factor Note for easy setting of the PWM frequency All Bürkert proportional valves with the corresponding PWM frequency are saved in the menu of the eCONTROL Type 8611 and can be selected there. The table with the PWM frequencies is available on the internet at country.burkert.com. By setting the valve type, the two limit frequencies of the PWM control (f and f ) are set. Depending on the working point, the actual output frequency is in this range. The values allocated to the valve types were determined empirically from the behavior of a large number of individual devices of the respective type. For optimizing the control behavior, the pulse duty factor is limited depending on the valve type as there are no significant changes in the flow-rate in the upper range of the pulse duty factor. WARNING Danger due to malfunction if an incorrect valve type is selected! Selecting the wrong valve type may result in damage at the valve and in malfunction.
  • Page 52 Type 8611 Functions of the Configuration Level Setting the PWM frequency in the menu: 0 0 0 1 Selection of MODE control variable CODE Setting the PWM frequency 0 0 0 0 ..PWM frequency 0 7 2 5 2821 Bürkert Type Manual entry of PWM frequency* 0 0 0 0 FREE FREE Continue with...
  • Page 53 Type 8611 Functions of the Configuration Level 12.3.3. PCV - Quasi-continuous control using process valve Use: Using this function, it is possible to implement the control of a process valve without position feedback. This is in particular interesting if the process valve cannot be designed with position feedback due to rough process conditions (e.g. high temperature, high humidity, little space requirement). Parameterization: Single-acting, pneumatically operated control valves with "normal closed" function can be operated. Two control valves are required for the pneumatic control of the process valve (see Figure 34). y 2 (ms) Controller setting: y 1 (ms) MODE = F, PCV, TMN1, TMN2, FREQ Control valves Aeration (NC operating Deaeration principle) (NO operating Set-point principle) value 8611 Actual value Figure 34: Example of a quasi-continuous control using process valve...
  • Page 54 Type 8611 Functions of the Configuration Level For the Bürkert control blocks Type 8810, the minimum control time of 5 ms has been set as default in the controller and does not have to be changed. Bleed valve (NO operating principle = Normally open / opened with no current) Aeration valve (NC operating principle = Normally closed / closed with no current) Figure 35: Control block 8810 for control of the process valve If control valves other than those of Type 8810 are used, the opening time specified in the data sheet for "TMN1" or the closing time for "TMN2" can be used. To ensure that the process valve moves automatically into closed position in the event of a power failure, observe the operating principle of the control valves: • Control valve for aeration NC operating principle / Normally closed ( closed with no current) • Control valve for deaeration = NO operating principle / Normally Open (opened with no current) Setting the minimum control time in the menu: 0 0 0 1 Selection of MODE control variable...
  • Page 55 Type 8611 Functions of the Configuration Level 12.3.4. 4–20 / 0-10 - Continuous control with 4 - 20 mA or 0 - 10 V standard signal This function can be used for operating control valves (e.g. motor valve, positioner) via the analog output using the control for 4-20 mA or alternatively 0-10 V standard signal. Example of a typical use, the flow-rate control in conjunction with a flow-rate sensor and an electric motor control valve, see Figure 37. Manipulated variable 0 - 10 V Controller setting: MODE = F, 0-10, FREQ Controller Process value 8611 8611 Set-point value Flow-rate fitting...
  • Page 56 Type 8611 Functions of the Configuration Level 12.3.5. 2P – T - Quasi-continuous 2-state control with open/closed valves This function can be used to implement quasi-continuous controls using open/closed valves. Here, unlike in purely open/closed controls that only provide for the states open or closed, the control time for the opening or closing is varied proportionally to the set-point/actual value deviation. The valves are controlled via the transistor output of the controller. Pt 100 8611 NC valve Controller setting: MODE = T, 2P – T, NC, PT Figure 39: Example of a 2-state temperature control with open/closed valve Setting the quasi-continuous 2-state control in the menu: 0 0 0 1 Selection of...
  • Page 57 Type 8611 Functions of the Configuration Level 12.3.6. 3P – T - Quasi-continuous 3-state control with open/closed valves or motor valve This function can be used to implement quasi-continuous controls using open/closed valves or motor valves. Here, unlike in purely open/closed controls that only provide for the states open or closed, the control time for the opening or closing is varied proportionally to the set-point/actual value deviation. The valves are controlled via 2 transistor outputs of the controller. Controller setting: MODE = P, 3P – T, NC, TMN1, NO, TMN2, NORM Set-point value 8611 4 - 20 mA Actual value Tank VLV1...
  • Page 58 Type 8611 Functions of the Configuration Level Setting the quasi-continuous 3-state control in the menu: Selection of three-state control 0 0 0 1 Selection of MODE 3P – T control variable CODE Selection of operating principle and enter minimum control time 0 0 0 1 0 0 0 1 VLV1 TMN1 VLV2...

  • Page 59: Unit - Selection Of Measuring Units And Decimal Places

    Type 8611 Functions of the Configuration Level 12.4. UNIT - Selection of measuring units and decimal places In this menu option, the measuring units and the number of decimal places (see Table 20) are selected for the displayed values. What measuring unit is selected in the UNIT menu depends on the control variable set in the MODE menu. Selecting the measuring unit and decimal places in the menu: Selected control variable UNIT MODE = F, Selected control variable MODE = RATI Liters/minute L / M Gallons/hour G / H Gallons/minute G / M...
  • Page 60 Type 8611 Functions of the Configuration Level Selected control variable UNIT MODE = T Degrees/Celsius °C Degrees/Fahrenheit °F Display without measuring unit DP_T 0 . 1 DP_T 0 . 0 1 DP_T Selected control variable MODE = T + F, T - F Degrees/Celsius °C Degrees/Fahrenheit...
  • Page 61 Type 8611 Functions of the Configuration Level Selected control variable UNIT MODE = L Meters Centimeters Millimeters Inch Feet DP_L 0 . 1 DP_L 0 . 0 1 DP_L Selected control variable MODE = X pH value Display without measuring unit Conductivity (Ohm · cm) Ωxc Conductivity (Siemens/cm) Conductivity (Millisiemens/cm) mS/c Conductivity (Microsiemens/cm)

  • Page 62: Setp / Rfac - S Election And Scaling Of Set-Point Value Default / Entry Of Ratio Factor

    Type 8611 Functions of the Configuration Level 12.5. SETP / RFAC - Selection and scaling of set-point value default / entry of ratio factor When selecting the set-point value default, the display in the menu makes a distinction between the set- point value for the process control and the set-point value for the ratio control. In the case of process control, the SETP menu is displayed for the setting; in the case of ratio control the RFAC menu. Set-point value for the process control (SETP): The process control applies for all control variables set in the MODE menu except for the control variable RATI. The ratio factor (RFAC) is entered as set-point value for the ratio control: For the ratio control, the control variable RATI must be set in the MODE menu.
  • Page 63 Type 8611 Functions of the Configuration Level Display SETP Description Internal set-point value default. Is entered in the operating state MANUAL in the SET menu using the keyboard. See chapter “11.5. SET - Set-point value default for process control” External process set-point value default using standard signal (4 - 20 mA or 0 - 10 4 mA / 20 mA Scaling of 4 - 20 mA standard signal (for definition of decimal places see UNIT menu). 0 V / 10 V Scaling of 0 - 10 V standard signal (for definition of decimal places see UNIT menu). Table 21: Display SETP Setting in the menu for ratio control (RFAC): Selection of set-point value default RFAC Selection of standard signal 4 – 20 0 – 10 Scaling 0 0 .

  • Page 64: S_In - Scaling Of Sensor Input Signal

    Type 8611 Functions of the Configuration Level 12.6. S_IN - Scaling of sensor input signal (4 - 20 mA or 0 - 10 V) The S_IN menu is only displayed if an analog sensor input was selected in the MODE menu. Setting in the menu: Selection of Scaling sensor input 0 0 0 0 0 0 5 0 S_IN 4 - 20 4 mA 20 mA 0 –...

  • Page 65: Aout - Scaling Of Analog Output

    Type 8611 Functions of the Configuration Level 12.7. AOUT - Scaling of analog output (4 - 20 mA or 0 - 10 V) The analog output is selected and scaled in this menu. The AOUT menu is not displayed if, in the MODE menu, 4 - 20 or 0 - 10 was selected as actuating element. See chapter “12.3. MODE - S election of control variable, actuating element and process value input”. Setting in the menu: Selection of standard signal Selection of output variable AOUT 4 – 20 FLOW * TEMP * 0 –...
  • Page 66 Type 8611 Functions of the Configuration Level Display Description Output of process value (only for control variable MODE = X or T and UNIT = NU) Output of actuating element position (only for actuating element type MODE = SCV) Value range: 0 00.0 - 100.0 000.0 = valve closed 100.0 = valve open Output of flow-rate Q1 for ratio control (control variable MODE = RATI) Output of flow-rate Q2 for ratio control (control variable MODE = RATI) RFAC Output of ratio factor RFAC for ratio control (control variable MODE = RATI) Scaling: Fixed scaling between 00.00 and 99.99 %. 4 mA / 20 mA Scaling of 4 - 20 mA output signal. 4 mA: Entry of output value for 4 mA 20 mA: Entry of output value for 20 mA Value range: O utput value for 4 mA < output value for 20 mA or...

  • Page 67: Cali - Calibration Of The Analog Inputs And Outputs

    Type 8611 Functions of the Configuration Level 12.8. CALI - Calibration of the analog inputs and outputs NOTICE Impaired function due to incorrect calibration. The calibration must be done by trained staff only All analog inputs and outputs were calibrated at the factory prior to delivery of the controller Type 8611. However, it is possible to recalibrate the analog inputs and outputs for services purposes or for checking the calibration. Setting in the menu: 0 0 0 2 CALI CODE Calibration set-point input Only for external set-point value default 0 0 .

  • Page 68: Calibration Of The Assembly Models: Wall, Rail, Valve Or Fitting Assembly

    Type 8611 Functions of the Configuration Level 12.9. Calibration of the assembly models: Wall, rail, valve or fitting assembly Menu Description Circular plug-in External circuit connector Use standard signal transmitter to apply a defined voltage (max. 10 V) or defined current (max. 20 mA), as shown in the columns on SETA, 5 (+) M 12,...

  • Page 69: Calibration Of The Control Cabinet Model

    Type 8611 Functions of the Configuration Level 12.10. Calibration of the control cabinet model Menu Description Terminals External circuit Use standard signal transmitter to apply a defined voltage (max. 10 V) or defined current (max. 20 mA), as shown in SETA, 14 (+) the columns on the right. SETV 21 (–) Use the arrow keys to change the displayed value until the display corresponds to the default. Apply defined current to sensor input, as shown in the IN A, columns on the right. 22 (+) IN V Use the arrow keys to change the displayed value until 21 (–) the display corresponds to the default. Connect multimeter to terminals, as shown in the columns OUTA, on the right, and measure the current and voltage value.

  • Page 70: Kfac - Entry Of K-Factor For Flow-Rate Measurement

    Type 8611 Functions of the Configuration Level 12.11. KFAC - Entry of K-factor for flow-rate measurement The controller Type 8611 only displays the KFAC menu if entry of the K-factor is required. This is the case if a sensor with frequency input was selected. (MODE, selection of process value input, FREQ. See chapter 12.3). In the controller Type 8611, the respective K-factor is already pre-set for the sensors from Bürkert. Once the type and the flow-rate variable have been selected, the corresponding K-factor is displayed and confirmed with the ENTER key. Selecting the FREE menu option also allows for individual, i.e. type-independent entry of the K-factor. Entry of the K-factor for ratio control (MODE = RATI): If frequency input was selected for both flow-rate sensors for ratio control, one of the inputs must be selected for the entry of the K-factor. When the menu is started, the selection Q1 and Q2 is displayed. For ratio control see chapter “12.3.1. RATI - Selection of external sensors for ratio control”. english...
  • Page 71 Type 8611 Functions of the Configuration Level Q1 and Q2 are only displayed if frequency input Q1 * (FREQ) was selected for both flow-rate sensors in Q2 * ratio control. 0 0 5 0 KFAC FREE DP_K KFAC 0 . 1 DP_K 0 . 0 1 The display 0.01, 0.1, 1 is used for setting DP_K the decimal place. Use the display 10 for setting the multiplier DP_K 10 for the K-factor.

  • Page 72: Filt - Filtering Of The Process Actual Value Input

    Type 8611 Functions of the Configuration Level 12.12. FILT - Filtering of the process actual value input Factory setting: FILT = 08 Value range: 2 - 20 The process actual value input is prepared via a digital FIR filter for the control or for the analog process value output. The behavior of such filter corresponds to an analog filtering using an RC element. The time behavior of the filtering differs depending on the measuring signal (frequency signal or analog signal). 12.12.1. Filtering analog inputs (4 - 20 mA, 0 - 10 V, Pt 100) The analog measurement values are scanned at a sampling frequency of 300 Hz, the resulting sampling rate amounts to 3.33 ms The time behavior of the measurement value depending on the filtering depth is shown in the figure below.

  • Page 73: Para - Adjusting The Controller Parameters

    Type 8611 Functions of the Configuration Level 12.13. PARA - Adjusting the controller parameters In this menu, the following parameters can be set for the eCONTROL Type 8611: • Proportional coefficient (proportional gain for opening and closing the actuating element) KP , KP The influence that the proportional coefficient has with regard to the selected actuating element and how the proportional gain is calculated are described in the following chapter “12.3.1. RATI - Selection of external sensors for ratio control”. • Controller cycle time TREG • Reset time TN, TN_T • Dead zone DEAD, DE_T • Effective direction between process value and valve position INV • Zero point shut-off ZERO • Defining the start value STRT What controller parameters are displayed for setting in the PARA menu depends on the actuating element selected in the MODE menu. See chapter “12.3. MODE - S election of control variable, actu- ating element and process value input”.
  • Page 74 Type 8611 Functions of the Configuration Level Setting the controller parameters in the menu: Set value PARA Accept value KP1, proportional coefficient 1 0 1 . 5 0 0 1 . 5 0 Changing the decimal place (see Table 28) 0 1 . 5 0 0 1 . 5 0 KP2, proportional coefficient 2 Cycle time for controller [s] 0 1 . 0 0 0 1 .
  • Page 75 Type 8611 Functions of the Configuration Level 12.13.1. KP1, KP2 - Setting the proportional coefficient (proportional gain) Depending on the actuating element selected in the MODE menu (see chapter 12.3), the influence of the proportional coefficient varies. It serves as proportional gain [K ] either for opening or for closing the actu- ating element. Calculation of the proportional gain [K Calculation for continuous control (MODE = SCV, 4 – 20 or 0 – 10): The proportional gain is calculated by dividing the value for the manipulated variable change [∆%] by the value for the process value change [∆PV]. ∆% Manipulated variable change ∆PV Process value change...
  • Page 76 Type 8611 Functions of the Configuration Level Actuating Influence proportional Calculation of the Value range element coefficient proportional gain (selection in MODE 0.001 – 9999 Proportional gain K ∆% 4 – 20 for opening and closing Changing the decimal places ∆PV 0 – 10 the actuating element → Press the ENTER key to select KP1 or Proportional gain K KP2.
  • Page 77 Type 8611 Functions of the Configuration Level PCV - Quasi-continuous flow-control using process valve (For schematic representation see “Figure 34: Example of a quasi-continuous control using process valve”) Technical description: • Bürkert process valve with actuator size 50 mm. • The max. process value change between closed and open position of the valve amounts to 50 l/min. • The flow change is done within the opening time of the valve. The opening time amounts of about 2 s (see “Table 29: Valve opening times for Bürkert process valves”). • The control range of the valve is not restricted: VALV, MIN = 0, MAX = 0 (see chapter “12.17. VALV - Test function and setting of the control range”). english...
  • Page 78 Type 8611 Functions of the Configuration Level Calculation for K and K 100 % = 2 % l/mn 50 l/mn The proportional coefficient for opening can also be used for closing. The controller cycle time T can be set between 1 - 2 s. For slow control loops like temperature control must be increased. Overview of the valve opening times of the Bürkert process valves depending on the actuator size and pilot pressure: Actuator size [DN] Pilot pressure Opening time for valve [s] Closing time for valve [s] Table 29: Valve opening times for Bürkert process valves 0 –...
  • Page 79 Type 8611 Functions of the Configuration Level Technical description: • Solenoid valve. • The process value change between closed and continuously opened position of the valve amounts to 10 °C. • The time for the temperature change amounts to 20 s. Calculation for K 100 % °C = 10 % 10 °C • The reset time T can be set between 15 - 20 s. • With the controller cycle time T the switching frequency of the valve can be influenced. Recommendation: T = 0.5 - 0.25 T Setting aid: An unsatisfactory dynamic of the control is improved by increasing the proportional gain [K ]. The following must be observed: In the event of impermissibly high overshoots after set-point value jumps or in the event of an unstable control, the proportional gain [K ] should be reduced. 12.13.3.
  • Page 80 Type 8611 Functions of the Configuration Level 12.13.5. DEAD – Insensitivity range (dead zone) This function causes the process controller to respond only from a specific control difference. This protects the control valves. The dead zone is entered as an absolute value according to the unit selected in the UNIT menu. x ‘ Set-point Control value (SP) difference to the controller x‘ – Dead Process zone value Figure 55: DEAD; Insensitivity range (dead zone) 12.13.6. KP T – Proportional gain of the cascaded temperature control This parameter is only available if the MODE = T + F process variable is selected and describes the proportional gain of the superimposed temperature controller. In the cascaded temperature control, the flow-rate control serves as subsidiary control circuit.
  • Page 81 Type 8611 Functions of the Configuration Level 12.13.7. DE_T – Insensitivity range of the cascaded temperature control Analogously to the DEAD menu option (see chapter 12.13.5) this function causes the cascaded temperature controller to respond from a specific control difference only. The dead zone is entered as an absolute value according to the temperature unit selected in the UNIT menu. 12.13.8. INV – Effective direction between process value and valve position This function is used to set the effective direction between the process value and the position of the valve (see Figure 56). Selection of inverted or not inverted control is possible. High INV – YES INV – NO Valve position Closed Open...
  • Page 82 Type 8611 Functions of the Configuration Level 12.13.9. ZERO – Zero point shut-off The zero point shut-off can be activated or deactivated. When the zero point shut-off is activated it is ensured that the valves close securely. Display Description ZERO No zero point shut-off. The control is continuous up to the lower limit value of the value range defined in SETP-EXT (see chapter 12.5) or up to the lower limit of the range defined in VALV-MIN (see chapter 12.17). The greater one of the two values is relevant Zero point shut-off is active. The control is continuous until the set-point value < 2% of the upper value range of SETP-EXT has been reached. If the 2% limit is not reached, all valve outputs are disconnected from the voltage supply. When valves are controlled with 0 - 10 V or 4 - 20 mA, the control signal is set to 0 V or 4 mA. Figure 58: Display ZERO 12.13.10. STRT – Start value for active control A start value can be defined for continuous actuating elements; this start value is approached immediately by the actuating element when the control is started.

  • Page 83: B_In - Configuration Of Binary Input

    Type 8611 Functions of the Configuration Level 12.14. B_IN - Configuration of binary input The binary input allows for starting various controller functions. The feedback from a limit switch (for filling level, pressure, etc.), the feedback from a PLC, etc. may be binary input signals. What menu options are displayed for the configuration depends on the actuating element set in the MODE menu. Setting in the menu: B_IN HIGH HOLD Enter value 0 0 0 HIGH SAFP PRZV 0 0 0 0 0 0 The display depends on the actuating 0 0 0 element set in the MODE menu OPEN 0 0 0 CLOS...

  • Page 84: B_O1 - Configuration Of The Binary Output

    Type 8611 Functions of the Configuration Level Display Description SAFP Setting of a safety position that is approached when binary input is active. Depending on the actuating element, the following options can be selected: PRZV: Control ratio in [%] for proportional valves mA: Control in [mA] for drives with current input as manipulated variable V: Control in [mA] for drives with voltage as manipulated variable OPEN: Open valve completely CLOS: Close valve completely STOP Valve movement is stopped (e.g. if the valve has reached the limit stop). The controller remains active and the binary input is automatically deactivated when the limit stop is left. The following functions are available for selection: OPEN: Opening movement is stopped CLOS: Closing movement is stopped These functions are only required when using valves without position feedback in conjunction with limit switches. If, for example, the set-point value has not yet been reached and the limit switch is active, the opening or closing movement is stopped. The STOP menu option is only displayed if, in the MODE menu, PCV, 2P – T or 3P –...
  • Page 85 Type 8611 Functions of the Configuration Level 12.15.1. PULS - Configuration of the binary output as pulse output In this menu, it can be defined when, referred to a specific flow-rate volume, a pulse signal is to be emitted. The measuring units and the volume per pulse can be selected as followed: Cubic decimeters (liters) British gallon (Imperial) IGAL American gallon UGAL Cubic meters Flow-rate volume per pulse (number of pulses) related to selected measuring unit Table 32: Measuring units for pulse output Setting aid: Selection of the number of pulses: The pulse frequency f is calculated according to the equation Q (flow-rate) PU (number of pulses) The pulse frequency may never exceed the frequency of 150 Hz. Select the number of pulses PU so that you obtain a max. frequency of 150 Hz for the maximum flow-rate.
  • Page 86 Type 8611 Functions of the Configuration Level 12.15.2. LIMT - Configuration of the binary output as limit switch This menu can be used to set alarms or switching contacts if specific limit values are exceeded or not reached. Setting in the menu: B_O1 For description of the configuration PULS see „12.15.1. PULS - Configuration of the binary output as pulse output“ LIMT 0 0 0 2 0 0 0 2 HYLO HYHI 0 0 0 2 0 0 0 2 FLOW PVLO...
  • Page 87 Type 8611 Functions of the Configuration Level Display Description LIMT Selection for the binary output with the function as limit switch. Limit states are monitored relatively to the set-point value (SETP) using a super- imposed switching hysteresis between the limit values (SETP+HYLO) and SETP- HYLO). If the set-point value (SETP) is changed, the monitoring limits are adapted automatically. See Figure 64 HYHI: Permissible exceeding of upper set-point value HYLO: Permissible dropping below lower set-point value Value range: H YHI, HYLO >= 0 Measuring unit: absolute, like defined in UNIT Limit values are monitored absolutely to fixed limit values (PVHI) and (PVLO). Depending on the selected control variable and measuring unit following vari- ables can be selected: FLOW: Monitoring of flow PRES: Monitoring of pressure TEMP: Monitoring of temperature LEVL: Monitoring of level VAL: M onitoring of conductivity, pH-value, concentration or process values without indication of units (UNIT = NU)
  • Page 88 Type 8611 Functions of the Configuration Level Schematic representation of a limit value monitoring referred to fixed process value limits: Process actual value Process value PVHI PVLO Time Active HIGH 24 V (NC valve) DLY = 0 s 24 V Active LOW (NO valve) Active HIGH 24 V (NC valve) DLY = 2 s Active LOW 24 V (NO valve) Figure 63: B_O1; LIMT; Limit value monitoring referred to fixed process value limits Schematic representation of a limit value monitoring relatively to the variable set-point value: Exceeding of process value...
  • Page 89 Type 8611 Functions of the Configuration Level 12.15.3. 2_P - Configuration of the binary output as 2-state controller In the discontinuous 2-state control, an open/closed valve is opened or closed depending on two limit values, for example. Setting in the menu: B_O1 For selection for binary output as pulse output PULS see „12.15.1. PULS - Configuration of the binary output as pulse output“ For selection for binary output as limit switch LIMT see „12.15.2. LIMT - Configuration of the binary output as limit switch“ 0 0 0 2 0 0 0 1 HYLO HYHI 0 0 0 .
  • Page 90 Type 8611 Functions of the Configuration Level Display Description Selection for the binary output with the function as 2-state controller. The 2-state control is implemented relatively to the set-point value depending on the deviation between set-point value and actual process value. If the set-point value is changed, the control limits are adapted automatically. See “Figure 66: B_O1, 2_P; 2-state control relatively to the set-point value” HYHI: Upper hysteresis HYLO: Lower hysteresis Value range: H YHI, HYLO >= 0 Measuring unit: absolute, like defined in UNIT The switching of the outputs is done relatively to the set-point value (SETP) between the limit values (SPHI) and (SPLO). This function can be used e. g. for opening or closing an additional open/closed valve for extending the working range of the control valve. SPLO: Lower switching threshold referred to set-point value SPHI: Upper switching threshold referred to set-point value Measuring unit: absolute, like defined in UNIT 2-state control between the fixed limit values (PVHI) and (PVLO). Depending on the selected control variable and measuring unit following can be selected: FLOW: 2-state control of flow PRES: 2-state control of pressure TEMP: 2-state control of temperature LEVL 2-state control of level VAL:...
  • Page 91 Type 8611 Functions of the Configuration Level Schematic representation of a 2-state control relatively to the set-point value: Process actual value Process value Set-point value SETP + HYHI HYHI SETP HYLO SETP - HYLO Time Inverted control (cooling) Active HIGH 24 V (NC valve) Active LOW 24 V (NO valve) Direct control (heating) Active HIGH 24 V (NC valve) Active LOW 24 V (NO valve) Figure 66:...

  • Page 92: B_O2 - Second Binary Output

    Type 8611 Functions of the Configuration Level 12.15.4. Error messages for B_O1 and B_O2 B_O1 B_O2 Description ERR1 is displayed if the process value displayed by the monitoring window is ERR1 ERR3 exceeded or not reached relatively to the set-point value (PV > SETP+HYHI or PV < SETP-HYLO). The last measurement value is displayed and the red LED is lit. According to the definition made in B_O1, the binary output is set to LOW (0 V) or HIGH (24 V). The controller remains active. RESET: The red LED goes off. The display and the binary output are reset auto- matically as soon as the process value displayed in the monitoring window is once again within the range of the set-point value. ERR2 is displayed if the value displayed by the monitoring window is exceeded ERR2 ERR4 or not reached absolutely to the fixed process value limit (PVHI, PVLO). (PV > PVHI or PV < PVLO). The last measurement value is displayed and the red LED is lit. According to the definition made in B_O1, the binary output is set to LOW (0 V) or HIGH (24 V). The controller remains active.

  • Page 93: Valv - Test Function And Setting Of The Control Range

    Type 8611 Functions of the Configuration Level 12.17. VALV - Test function and setting of the control range In this menu option, the actuating element can be operated manually, for instance in order to • test how the process variable responds to the change in manipulated variable or • to define the permissible control range of the actuating element. It is recommended to carry out the settings under real process conditions if the process allows it. 12.17.1. Control with PI-action structure activated, T > 0), MODE = SCV, 0 - 10, 4 - 20, 2P -T, 3P - T Setting in the menu: The display (PRZ, 0 – 10 or 4 – 20) depends on the actuating element set in the MODE menu.
  • Page 94 Type 8611 Functions of the Configuration Level 12.17.2. Control with P-action structure deactivated, T = 9999), MODE = PCV, 2P -T, 3P - T Setting in the menu: 1. P ress the ENTER key to display the current process value. In the case of cascaded control, the process value and the flow-rate value are displayed alternately Press the up arrow key to open the actuating element, and the down arrow key to close the actuating element. P ress the up arrow key to operate the actuating element 1 (VLV1), and the down arrow key to operate the actuating element 2 (VLV2). For MODE = 2P - T only the actuating element 1 (VLV1) can be operated with the arrow up key.

  • Page 95: Code - Code Protection

    The following operator actions are blocked if code protection is activated: • Changing the controller parameters in operating state MANUAL under the PARA menu (see chapter 11.8) • Access to the configuration level (see chapter 12.1) Factory setting: Upon delivery from the factory, the display in the CODE menu is set to 0000. This means that the code protection is not activated. Switching to the configuration level (see chapter “9.2.1. Switching between the operating levels and operating states”) is done without query of the code. Setting the code protection in the menu: Enter code 0 0 0 0 A value between 0001 and 9999 can be entered for the CODE code protection. CODE If 0000 is entered, the code protection is not activated. DSPL Figure 68: CODE; Setting the code protection 12.18.1. If you have forgotten the code If you have forgotten the code, access is possible using a master code. In this case, please contact your the sales office responsible for you. The addresses of our international sales offices are available on the internet at: country.burkert.com english...

  • Page 96: Dspl - Setting The Display

    Type 8611 Functions of the Configuration Level 12.19. DSPL - Setting the display In this menu, the following settings for the display can be made: • Activation of the background lighting • Define what value or what manipulated variable should be displayed after switching on the voltage. Setting the display in the menu: The background lighting remains switched on DSPL continuously. L OFF Y E S The background lighting switches on when the button is L OFF pressed and switches off automatically after 60 seconds. Display process actual value PVAL Display manipulated variable (only for continuous control (MODE = SCV, 4 – 20 or 0 – 10) see chapter 12.3.2) Display set-point value and BOTH process actual value Display set-point value SETP...

  • Page 97: Fact - Reset To Factory Settings

    Type 8611 Functions of the Configuration Level 12.20. FACT - Reset to Factory Settings In this menu, the controller Type 8611 can be reset to the factory settings it was delivered with. Setting in the menu: Enter access code 0003 Return without resetting of the 0 0 0 3 FACT settings CODE FACT Resetting to factory settings upon Y E S delivery FACT U_xx Figure 70: FACT; Reset to Factory Settings 12.21.

  • Page 98: End - Leaving The Configuration Level

    Type 8611 Functions of the Configuration Level 12.22. END - Leaving the configuration level Press the ENTER key in the END menu option to leave the configuration level. After that, the controller is once again at the process operating level and in the AUTOMATIC operating state (see chapter “9.2.1. Switching between the operating levels and operating states”). If the arrow keys are pressed, the controller remains at the configuration level and switches to the next or the previous menu option. MODE Menu selection of the configuration level B_xx Switching to the process operating level AUTOMATIC operating state Figure 72: END; Leaving the configuration level english...

  • Page 99: Overview Setting Parameters

    Type 8611 Overview Setting parameters OVERVIEW SETTING PARAMETERS Continuous control Quasi-continuous control Discontinuous control Actuating Propor- Linear actuating Process Open/ Open/ Open/ Open/ element tional element valve closed closed closed closed valve valve rotary valve valve actuator Program 0-10 4-20 2P –...

  • Page 100: Maintenance & Troubleshooting

    Type 8611 Maintenance, Troubleshooting MAINTENANCE, TROUBLESHOOTING The process controller Type 8611 is maintenance-free when operated according to these Opertaing Instructions. 14.1. Malfunctions The table below contains the possible error messages with cause and remedial action. Error Display / action Cause Remedial action ERR1 ERR1 is displayed and red LED The process value displayed is lit. The process actual value is by the monitoring window is still displayed. exceeded or not reached rela- Binary output B_O1 is activated. tively to the set-point value (see menu function B_O1 / The control remains active. For description see LIMT / REL, chapter 12.15). chapter “12.15.4. Error ERR2 ERR2 is displayed and red LED The process value displayed messages for B_O1 and...

  • Page 101: Packaging And Transport

    Type 8611 Packaging and Transport PACKAGING AND TRANSPORT NOTICE Transport damages! Inadequately protected equipment may be damaged during transport. • During transportation protect the device against moisture and dirt in shock-resistant packaging. • Do not allow the temperature to exceed or drop below the permitted storage temperature. STORAGE NOTICE Incorrect storage may damage the device. • Store the device in a dry and dust-free location! • Storage temperature: 0 ... +70 °C. DISPOSAL → Dispose of the device and packaging in an environmentally friendly manner. NOTICE Damage to the environment caused by device components contaminated with media. •...
  • Page 102 Type 8611 english...
  • Page 104 www.burkert.com...

Table of Contents