mxCONTROL Type 8620 Type 8620 mxCONTROL Multifunction Water Treatment Controller Operating Instructions Page 1
mxCONTROL Type 8620 We reserve the right to make changes without notice! © 2009 - 2010 Bürkert Werke GmbH & Co.
mxCONTROL Type 8620 Contents CONTENTS 1 THE OPERATING INSTRUCTIONS 2 INTENDED USE 2.1 Restrictions 2.2 Anticipated misuse 3 GENERAL SAFETY INSTRUCTIONS 4 GENERAL INFORMATION 4.1 Scope of Delivery 4.2 Warranty Regulations 4.3 Certifications 4.4 Information in the Internet 5 ABBREVIATIONS 5.1 Abbreviations in Software and Documentation 5.2 Display of the units 6 TECHNICAL DATA 6.1 Technical Specifications 6.2 Type Plate – Example 6.3 Hardware Structure 6.4 Module Overview 7 INSTALLATION 7.1 Safety Notes 7.
mxCONTROL Type 8620 12 13 14 11.4 Configuration and Parameterization 11.4.1 Preface about Configuration/Parameterisation 11.4.2 Operating Language 11.4.3 Factory Setting of Parameters and Factory Reset 11.5 Communication 11.5.1 USB 11.5.2 Ethernet (only devices with Ethernet option) 11.5.3 (Remote) Device access via PC-Tool INPUTS 12.1 Digital Inputs 12.1.1 Binary Inputs 12.1.2 Frequency Inputs 12.1.3 Pulse Counter Inputs 12.2 Analog Inputs 12.2.1 4…20 mA Inputs 12.2.2 Pt100 Inputs OUTPUTS 13.
mxCONTROL Type 8620 15 16 17 18 19 20 21 ALARM AND ERROR MESSAGES 15.1 Alarm function 15.2 Displaying (Input-) Alarms and different (Output-) States 15.3 Error Messages and Warnings MAINTENANCE AND TROUBLESHOOTING 16.1 Safety Notes 16.2 Maintenance work 16.3 Malfunctions SPARE PARTS PACKING AND TRANSPORT STORAGE DISPOSAL APPENDICES 21.1 Project (for example "BW 06") 21.1.1 Input/Output Assignment – project "BW 06" 21.1.2 Wiring Diagram Example for Project "BW 06" 21.
mxCONTROL Type 8620 1 The operating instructions WARNING! The operating instructions must be read and understood. Read the operating instructions carefully. Note the chapters Intended Use and General Safety Instructions! Presentation elements DANGER! Mains voltage! Immediate danger! Death or serious injuries are the result of non-compliance with the safety instructions. DANGER! Immediate danger! Death or serious injuries are the result of non-compliance with the safety instructions.
mxCONTROL Type 8620 2 Intended Use WARNING! Hazards to persons, equipment in the vicinity and the environment may result when not using the „Type 8620 mxCONTROL“ as intended. The „Type 8620 mxCONTROL“ may not be used in explosion-hazard rooms. The „Type 8620 mxCONTROL“ may only be used at temperatures from 0 °C. The permissible data and operating conditions specified in the operating instructions as well as the application areas described in chapter 6.1 must be followed.
mxCONTROL Type 8620 3 General Safety Instructions These safety instructions do not take any • Incidents and occurrences into account which may occur during assembly, operation and maintenance of the devices. • Local safety regulations where the operating party is responsible for its compliance, also in regard to the installation staff. DANGER! Danger from electrical voltage Reaching into the system presents an acute risk of injury.
mxCONTROL Type 8620 CAUTION! Hardware and Software modifications and changes For safety reasons unauthorised modifications and changes of hardware and software are not allowed. Make sure to comply with the notes, thresholds, operating modes and safety instructions given in this manual. Non-compliance with this manual and operating sequence will void any liability claims.
mxCONTROL Type 8620 4 4.1 General Information Scope of Delivery Verify immediately after receiving the shipment that the contents are not damaged and agrees with the specified scope of delivery as stated on the enclosed "Delivery instructions"; also make sure that the details on the type plate match the conditions of use. Please contact our sales centre immediately in case of disagreements: Bürkert Fluid Control Systems Sales Center Christian-Bürkert-Str.
mxCONTROL Type 8620 5 Abbreviations 5.1 Abbreviations in Software and Documentation Further abbreviations (Error messages) can be found in chapter 15.3.
mxCONTROL Type 8620 Abbreviation CORROSION_DISPLAY CutCut+ DD+ Dbnd DigIn 1 … 4 Dos1 … Dos8 FA Fc FC fF FI Filter Fmax fo FreqFreq+ Fr fS FS FSOR Hyst HO Inv IS Kp Kx LimLim+ Ma Mo MONITOR_PV Mon PV MOT MPY MTPB µMPY nA O2_SCAV_CTRL_RATIO O2SCR OF OPEN_PROP OpProp ORP PB PB ratio PFM pH-AC pH-A/C Page 12 Explanation Corrosion Display Module Lower CutOff threshold (Module "COMMON_PID") Upper CutOff threshold (Module "COMMON_PID") Max. negative set point change per minute, falling (Delta-) Max.
mxCONTROL Type 8620 Abbreviation PH_ACID_CAUS PH_ACID_OR_CAUS ptf.binary PS Psd PumpStop PV PV BSi PV cal PWM r Ref.
mxCONTROL Type 8620 Abbreviation YF YS Page 14 Explanation Out fails (MOT is expired) Safety output value is active (due to input/sensor fault)
mxCONTROL Type 8620 5.2 Display of the units Because of the limited display, there is not always sufficient room available for the detailed display of the unit. Depending on the available positions, 3 or 6 positions are shown in the display; the equivalents as well as the output during data logging are listed in the following table, arranged by groups. Display max. 3 characters Display max.
mxCONTROL Type 8620 Display max. 3 characters Display max.
mxCONTROL Type 8620 6 6.1 Technical Data Technical Specifications These operating instructions are valid from General Details of the Device Enclosure Enclosure outer dimensions L x W x H Enclosure material Weight Degree of protection Firmware revision: C.00.00.00 with sealed keypad and display 230 x 204 x 119 mm (without cable glands) PC (UL94) with transparent door and key 1.8 kg IP 65 and NEMA/UL 50, Type No.
mxCONTROL Type 8620 Internal Equipment – Inputs Inputs Hardware version 1: 4 Analog inputs (4 … 20 mA or Pt100; softwareconfigurable) + 4 digital (On/Off or Freq) inputs Hardware version 2: 4 Analog inputs 4 … 20 mA + 2 Pt100 + 4 Digital (On/Off or Freq) inputs + 4 digital (On/Off) inputs Analog inputs – Characteristics Input resistance of 4…20 mA inputs max. 300 Ω Measuring error of 4…20 mA inputs < 0.2 % FS Range of Pt100 inputs -20 … +150 °C Measuring error Pt100 inputs max. ±0.
mxCONTROL Type 8620 Communication SD card SD card capacity: minimum 64 MB, maximum 2 GB, formatted with FAT16 file system Up-/download of configuration data and parameters via USB or SD card Data-logging on SD card Firmware update via USB USB slave interface standard USB interface for PC communication Ethernet interface optional: Ethernet interface for easy diagnosis including Web Server and email option Extension bus interface CAN-based bus for connection of extension units (e.g.
mxCONTROL Type 8620 CE mark applicable tests resulting in CE mark UL/CSA (for UL/CSA approved versions) conform to Std. UL61010-1 Second Edition “Process Control Equipment” and to the appropriate CSA standard C22.2 No. 61010-1 Second Edition Table 1: Technical Specifications 6.
mxCONTROL Type 8620 6.3 Hardware Structure This simplified block diagram shows the main hardware components of „Type 8620 mxCONTROL“.
mxCONTROL Type 8620 6.4 Module Overview This table shows the available standard modules which can be combined specifically for the application. They can function either as process or control or merely as display module. The module names as used in the configuration files and the short designations for the menu are listed as well as a short explanation of the module type.
mxCONTROL Type 8620 7 Installation 7.1 Safety Notes DANGER! Danger from electrical voltage! Reaching into the system presents an acute risk of injury. Always switch off the power before beginning with the work activities and secure it against being switched back on inadvertently! Obey the applicable accident prevention and safety regulations for electrical devices! Please, compare the DANGER and UL indications in chapter 7.
mxCONTROL Type 8620 7.3 Mechanical Installation Direct sunlight will reduce the viewing contrast at the display – although it is harmless to the display. Therefore find a suitable, protected location for the installation. The „Type 8620 mxCONTROL“ is not designed for ambient temperatures below.0 °C. If this cannot be avoided, the „Type 8620 mxCONTROL“ must be installed in a thermostatically controlled cabinet to maintain a normal ambient temperature.
mxCONTROL Type 8620 Dimensioning of fuses, line safety switches, overcurrent protection devices Pay attention to correct design of the fuse and/or the line safety switch in the power supply line. The L- and N-conductors have to be protected with overcurrent protection devices (max. 10 A) as e.g. fuses, line safety switch etc. Also install an equipment for the disconnection of L- and N-conductors from the power supply near the „Type 8620 mxCONTROL“. Therefor e.g.
mxCONTROL Type 8620 Figure 5: Cable with cable end sleeves → → → Then guide the prepared cable through the cable gland opening into the device and attach the wires to the terminal strip. Now screw the cable gland nut tight until the cable is securely attached (tightening torque for cable gland M16: max. 6 Nm (tightening torque for M20 cable gland: max. 8 Nm (tightening torque for M20 cable gland: max. 10 Nm) After clamping all required connections re-attach the plate and tighten the screws.
mxCONTROL Type 8620 7.5.2 Instrumentation Supply (IS) Connect the cables as shown in the PIN tables in the appendix (21.3.2 and 21.4.2). The respective terminal assignment plans are created with the PC Tool according to the “project”. They serve as basis for wiring diagrams and the input/output assignment as shown in the example in the appendix 21.1 For sensor inputs and analog 4…20 mA outputs shielded cables are recommended for best EMC. Connect the cable shields with the respective Pin “GND” for EMC.
mxCONTROL Type 8620 8 8.1 Description of Human-Machine Interface Safety Notes WARNING! Danger from improper operation! Improper operation may result in injuries as well as damages on the device and its environment. The device may only be operated by authorized technical personnel! The persons operating the device must be familiar with the content of the operating instructions and have understood the same. The safety instructions and intended use require special consideration. 8.
mxCONTROL Type 8620 8.3 Operation Mode 8.3.1 Automatic & Manual Mode Key A/M key with yellow LED The A/M key switches between the Automatic and Manual Mode; the A/M key includes a yellow LED: LED on LED off LED flashing Æ Automatic Mode Æ Manual Mode Æ ALARM (at least one alarm) both in automatic and manual mode In case of alarm, follow the descriptions in chapter 15 “Alarm and Error Messages”. 8.3.2 Automatic Mode (LED on) The „Type 8620 mxCONTROL“ starts in automatic mode after powering up.
mxCONTROL Type 8620 8.4 Layout of Menu Screens Running bar directly below the upper horizontal screen border, running from the left to the right – indicates the Automatic Mode Cursor bar Menu items Current position inside the whole menu tree BW 06 Processdata Parameter Configuration System settings 1 ENTER Menu title - indicates the (selfselected) designation for the “project” (module combination) (or "No Config.
mxCONTROL Type 8620 9 9.1 Menu Structure Principle of Menu Tree Structure A welcome message appears in the display after switching on the „Type 8620 mxCONTROL“. This display content is then shown with the current software version number for approx. 4 seconds. When starting the „Type 8620 mxCONTROL“ for the first time, the next display text shows "No Config. loaded", i.e., no (configuration/parameter) files have been downloaded yet. In this case, refer to chapter 11.
mxCONTROL Type 8620 A similar structure is given for all “projects”.
mxCONTROL Type 8620 9.2 Setting Numeric Values Parameters, i.e. their numeric values can be changed within predefined ranges. They are described in the following chapters. Not all numeric values allow to move the decimal point. The operator has to select the variable or parameter he wants to change with the soft key “ENTER”. Before the operator can change the value of a parameter, he has to enter the correct password.
mxCONTROL Type 8620 10 Password Protection Three authorization levels (CodeLevel) are provided for the operation of „Type 8620 mxCONTROL“: General access, access for operators, access for specialists. A password is a 4 digit number. The operator has to enter the password of the required protection level in order to enter protected menus or menu items. The specialist password also overrides the operator password. A separate description on how to change the password is provided below.
mxCONTROL Type 8620 Changing Passwords → → → → → → → Choose the main menu item “Configuration”, enter with “ENTER” Enter the specialist password (by possibly pressing the "+" key several times; you can also use the "<-" for multi-digit numbers), then press "OK".
mxCONTROL Type 8620 11 General Software Concept and Functions 11.1 Functional Overview The „Type 8620 mxCONTROL“ is a configurable multifunction controller. Its principal of function can be divided into three main process areas: Input process, control process and output process (see Figure 10). Figure 10: Process diagram Input Process: • Reading of the enabled inputs and the processing of scaled process values from raw values.
mxCONTROL Type 8620 Most modules have a spezial ”Output Override“-Function (override the original output value) in order to react to situations as: - Input or Sensor Faults, - Activation of the System or Flow Switch or - special states or alarms of other activ modules. Output Prozess: • Converting and transferring of the virtual module outputs to the configured real outputs (that means the real outputs are controlled to output the configured form of output signal) 11.
mxCONTROL Type 8620 → Select the desired configuration file "XXX.cfg" for download into the „Type 8620 mxCONTROL“, press key "ENTER". Download of the configuration file is running. If the download was successful, the message "Successful" appears in the display. → Return to submenu by pressing key "EXIT". → Select associated parameter file “XXX.par”, press key "ENTER". Download of the configuration file is running. If the download was successful, the message "Successful" appears in the display.
mxCONTROL Type 8620 Stopping/cancelling of the upload process – by pressing key „EXIT“ makes the uploaded file incomplete and it cannot be used for a download process. But only at next download process appears the error message! And if upload process was successful the display shows the notification “Successful”. → Leave the submenu by pressing key “EXIT” (several times). Remove the SD card by pressing against it. 11.
mxCONTROL Type 8620 Log files are stored in the root directory of the SD card. The root directory can contain approximately max. 100 entries (files and folders; each file / folder name has max. 31 characters). The layout of the data logging file, the abbreviations and the coding used in the header are shown in an example in appendix 21.6.
mxCONTROL Type 8620 Parameter (CodeLevel: Operator) Parameter Access via Datalogmenu Access via AbbreXMLviation Param.-File (menu) Range Default values (after factory reset or at start of Param-FileDownload) Datalog Logging SD-Card rw -- -- enable/disable Disable (only after factory reset) Sample Time rw rw Tsample 10 ...
mxCONTROL Type 8620 11.3.1 Selection of SD card size for Data Logging purposes The size required for one process data sample depends on the current configuration and the sample time. Every Tsample seconds a new sample of process data is written into the internal volatile Data Logging memory.
mxCONTROL Type 8620 Estimation for a blank SD card, formatted with FAT16 file system: Required SD card size [MByte] ≥ Required free memory [MByte ] , resulting in: 0,9 Free SD card memory [MByte] = 0,9 ∗ SD card size [MByte ] Estimation, how many days the SD card will suffice: 1024 kByte ⎞ ⎛ ⎜ Free SD card memory [MByte] − 1MByte) ∗ ⎟ − (NOC ∗ HeaderData) 1MByte ⎠ ⎝ Days = LogsPerDay ∗ SampleData Example: An empty 64MByte SD card, formatted with the FAT16 file system, with a free SD card memory of 0.
mxCONTROL Type 8620 Changing sample time: → Select „Tsample“, press key “INPUT” → Input a new value for „Tsample“ (via keys „+“ und „<-“), press key „OK“ New settings of Tsample apply when returning to the main menu! → „ESC“ cancels the function of setting a new value for Tsample, the new value for Tsample will not be applied. Leave the submenu by pressing key “EXIT”.
mxCONTROL Type 8620 11.4 Configuration and Parameterization 11.4.1 Preface about Configuration/Parameterisation The configuration (Code Level: Specialist) can be done with a special configuration file (XML style), which can be downloaded into the „Type 8620 mxCONTROL“ from an SD card or via USB. This configuration file will be generated with a special PC Tool.
mxCONTROL Type 8620 11.5 Communication 11.5.1 USB Device access via USB allows putting the “Type 8620 mxCONTROL” easily into service. This functionality is available from Firmware Rev.C.00.00.00. Functionality Please refer to chapter 11.5.3 “(Remote) Device access via PC-Tool”. Configuration (CodeLevel: Specialist) This configuration menu is located under the menu item “Configuration\Communication\USB“. Configuration USB device access (via PC-Tool) Access via Cfg.menu rw Access via XMLCfg.
mxCONTROL Type 8620 Features Feature Operational Speed IP address assignment Email notification Device access Security 10 / 100 Mbps (auto negotiation) Static (recommended) or dynamic (DHCP). A DHCP server is required for dynamic IP address. For alarm / warning / error and restart information. Therefore a mail server with SMTP (without authentication) for sending emails to intranet and internet is required.
mxCONTROL Type 8620 Email notification Requirements A mail server is required, that • supports SMTP (Simple Mail Transfer Protocol) without prior user authentication • is reachable by the “Type 8620 mxCONTROL” from the Intranet For transmission of emails outside the local network (e.g.
mxCONTROL Type 8620 Up to 4 emails can be sent with one server connection. There is a 5 second mail server reconnection delay, in order to enable external device access in worse case of continuous new trigger events. The reconnection delay is set to 30 sec / 10 sec in case of failed mail server connection / communication. If a connection to the mail server was delayed or failed the latest event information is kept and updated in a volatile memory – for a later reconnection.
mxCONTROL Type 8620 Email 1 – Alarm renotification Email 2 – Warning renotification Remote device access via PC-Tool Requirements • Access to the local Ethernet network, in which the device “Type 8620 mxCONTROL” is located • Network safety regulations allow traffic on TCP/IP port 10001 • IP address of “Type 8620 mxCONTROL” is known • Unique DHCP host name of “Type 8620 mxCONTROL” is known (if Static IP = No) Functionality Please refer to chapter 11.5.3 (Remote) Device access via PC-Tool.
mxCONTROL Type 8620 Datalogging The datalog file of devices with Ethernet option contains 2 additional columns: “Ethernet state” and “Ethernet event”.
mxCONTROL Type 8620 Configuration Access via XMLCfg.-File Abbreviation (menu) Value range Default values (after factory reset or at start of Cfg-FileDownload) rw Via email Yes, No No rw IP 0.0.0.0 rw rw Port 0.0.0.0 … 255.255.255.255 0 … 65535 rw rw From (sender) Recipient 1 rw rw Recipient 2 rw rw To (recipient 1) To (recipient 2) Access via Cfg.
mxCONTROL Type 8620 Function overview PC Tool menu item Connection Connection … Device data … Login Logout Remote Control Download (PC-> Device) Configuration file Parameter file Upload (Device->PC) Configuration file Parameter file (Data)Log file Service Download calibration file Upload calibration file Explanation One connection possible at one time. Establishing / closing a connection to a device.
mxCONTROL Type 8620 Display of current state Do not change parameters / values, when remote upload or download is active. The following list shows the displayed symbols for the current remote state. The symbol for the remote state is located in the upper left corner of the display, right beside the Ethernet status symbol.
mxCONTROL Type 8620 12 Inputs Depending on the hardware version, the „Type 8620 mxCONTROL“ has digital and analog inputs which can be configured according to the user requirements. Configuration via the configuration file: • Enabling and labelling the desired inputs • Activation of special input functions Configuration via the configuration file but also directly on the „Type 8620 mxCONTROL“: • Scaling and filter settings • alarm settings.
mxCONTROL Type 8620 12.1.1 Binary Inputs Binary inputs are usually used to detect special outer conditions, which shall have an effect on the behaviour of the controller/module. There are two types of binary inputs, which differ in the acceptance of the input signal: Normal binary inputs and potential-free binary inputs. Please refer to the following selection chart for the configuration of the right input type. Digital input type Binary potf.
mxCONTROL Type 8620 The alarm information is displayed in the menu Processdata\Inputs as an icon similar to the input alarms of frequency and analog inputs. As long as the alarm is timing (i.e. the binary input signal fits the alarm condition, but the alarm delay time is not reached yet) a warning icon is displayed. Configuration (CodeLevel: Specialist) Configuration Access via Cfg.menu Access via XMLCfg.
mxCONTROL Type 8620 The K-Factor specifies the amount of pulses per volume unit. The K-Factor can specified in different units - please refer to the "Configuration" section (see below) for the available units. The setting of the scaling unit determines the unit of the process value. This unit is used at the same time for the scaling values, the alarm and warning limits of this input and for certain parameters of associated modules.
mxCONTROL Type 8620 Unit Group Miscellaneous Chemical Analysis Volume Flow (flow rate) Measuring units (*) ppm, V, mA, Pulse, Hz, %, no unit? µS/cm, mS/cm, MPY, µMPY, mV, mg/L, %Sat, pH L, hL, m3, Gal US; bbl US, gal Imp, ft3, yd3 L/s, L/min, L/h, m3/min, m3/h, Gal/s US, Gal/m US, Gal/h US, gal/s Imp, gal/m Imp, gal/h Imp, bbl/s US, bbl/m US, bbl/h US, ft3/s, ft3/min, ft3/h, P/s, P/m Temperature °C, °F, °Rank, K Pressure bar, mbar, psi (*) If the display does not have sufficient spaces available, only 3 o
mxCONTROL Type 8620 Figure 15: Alarm/warning switching hysteresis Alarm activation is equipped with a switching hysteresis (AlarmHys) to prevent excessive switching. The hysteresis has to be parameterized in percent of input range (i.e. the input range (Scal- … Scal+) corresponds to 100 %). For displaying and data logging purposes there are adjustable upper and lower warning limits and a separate warning hysteresis WarnHys. The alarm and warning limits are configured in the unit of the process value.
mxCONTROL Type 8620 Configuration (CodeLevel: Specialist) Configuration Access via Cfg.menu rw Access via XMLCfg.-File Abbreviation (menu) Value range rw Input On/Off -rw rw rw -K-Factor Unit K-Factor *) Frequency range: Lower value**) Frequency range: Upper value**) Process value scaling: unit rw rw rw rw K-Factor Freq- 0; 1 (Pulses per) … L, m³, Gal US, bbl US, gal Imp, ft3, Pulse 0.001 ... 9999.0 0 Hz … Freq+ 1.0 0.0 rw rw Freq+ Freq- … 2000 Hz 2000.
mxCONTROL Type 8620 12.1.3 Pulse Counter Inputs The pulse counter inputs, for example, can be used in combination with the Batch Dosing modules. The incoming pulses are counted and scaled for further processing per K-Factor. The K-Factor specifies the amount of pulses per volume unit. The K-Factor can specified in different units - please refer to the "Configuration" section (see below) for the available units.
mxCONTROL Type 8620 If such a fault occurs, the common alarm output is activated. Additionally, the safety output value will be activated in the corresponding modules, which support the safety output function and which are linked with the faulty input.
mxCONTROL Type 8620 Special input function There is special root extraction function available, e.g. for adapting special flow sensors. Therefore the following function is applied to the scaled value. PV,new = (PV − Scal − )(Scal + − Scal − ) + Scal − with ScalScal PV (low scaling value) (high scaling value) (scaled process value) Refer also to Figure 18: Root function.
mxCONTROL Type 8620 Alarm activation is equipped with a switching hysteresis (AlarmHys) to prevent excessive switching. The hysteresis has to be parameterized in percent of input range (i.e. the input range (Scal- … Scal+) corresponds to 100 %). For displaying and data logging purposes there are adjustable upper and lower warning limits and a separate warning hysteresis WarnHys. The alarm and warning limits are configured in the unit of the process value.
mxCONTROL Type 8620 Calibration Mode “1-point” This calibration mode can be used for the calibration of 4-20mA input signals from e.g. • Redox Transmitters • pH-Transmitters This mode of calibration needs one buffer solution to receive the new straight calibration line. Take care for the dependence of temperature of the buffer solution/pH-measurement. Usually it is mentioned on the buffer bottles. → Hold the current PV during the calibration procedure: Yes or No (Default: Yes).
mxCONTROL Type 8620 → Hold the current PV during the calibration procedure: Yes or No (Default: Yes). Hold-Function – for calibration without interrupting the process: it holds the PV constant during the whole calibration procedure. Therefor the current PV is used when starting the calibration procedure with confirming “Next Step”. → → → → Proceed with “Next Step”, press key “OK” Then rinse/clean the electrode as requested, after that press key “OK” Scroll to “1stPoint”, press key “INPUT”.
mxCONTROL Type 8620 Configuration (CodeLevel: Specialist) Configuration Access via Cfg.menu rw Access via XMLCfg.
mxCONTROL Type 8620 12.2.2 Pt100 Inputs Figure 19: Pt100 Input A/D-Conversion The enabled analog Pt100 inputs are sampled every 50ms with a resolution of 10 bit in order to convert the analog input signal to a digital value. Additionally the enabled analog inputs are checked after each sampling process on • input fault (detected temperature < approx. -22 °C) • sensor fault (detected temperature > approx. +155 °C) • AD-fault (fault during sampling process).
mxCONTROL Type 8620 A cable different than the calibration cable (with a different constant resistance) is normally used for wiring the Pt100 sensor "in the field" with the „Type 8620 mxCONTROL“. This leads to a falsification of the measurement, which means the measured resistance with the used cable is lower or higher than the value measured with the calibration cable. This falsification has to be corrected by compensation of the measured resistance.
mxCONTROL Type 8620 Low Pass Filter Please refer to the description of the low pass filter in section 12.2.1. (Process Value) Alarm Please refer to the description on the process value alarm in section 12.2.1. Configuration (CodeLevel: Specialist) Configuration Access via Cfg.menu Access via AbbreXML-Cfg.
mxCONTROL Type 8620 13 Outputs The „Type 8620 mxCONTROL“ has 5 relay outputs by default. Depending on the hardware version, the „Type 8620 mxCONTROL“ can have additional analog and transistor outputs.
mxCONTROL Type 8620 13.1.1 Relay as Binary Output (On/Off) Controller Output 100% (on) The simple On/Off outputs are used to switch on or off valves, pumps and the alarm output. 0% (off) The figure shows the operational mode of the On/Off outputs.
mxCONTROL Type 8620 13.1.3 Relay as PWM Output Relay Output (break contact) with constant time (T2) Inv = No T1 T1 T1 T1 Relay activated T2 = Tperiod T1 – variable T2 – constant Relay dropout T2 T2 Time t T2 Relay Output (break contact) with constant time (T2) Pulse Width modulated (PWM) outputs are used for controlling the 2-point-valves which are necessary for PIcontrolling of the conductivity. The figure shows the operational mode of the PWM outputs.
mxCONTROL Type 8620 13.2 Analog 4...20 mA Outputs (Option) The control output of the connected module output is converted to a 4…20 mA output signal as shown in Figure 23. The nominal resolution of the analog output circuit is 10 bit (1024 steps), but due to factory calibration the actual resolution is lower but at least 9 bit (512 steps). The maximum load is 500 Ω.
mxCONTROL Type 8620 → Select „Offset“, press key “INPUT” (Æ the device outputs now a current of 4 mA at the 4-20mA output X) → Measure the real current through the resistor R → Input the measured current value (via keys „+“ and „<-“), press key "OK" → Select „Span“, press key “INPUT” (Æ the device outputs now a current of 20 mA at the 4-20mA output X) → Measure the real current through the resistor R → Input the measured current value (via keys „+“ and „<-“), press key "OK" → Select “End”; press key “EN
mxCONTROL Type 8620 13.3 Transistor Outputs (Option) Technical details of the transistor outputs are described in chapter 6.1 “Technical Specifications”. Transistor outputs can be used for controlling e.g.
mxCONTROL Type 8620 control output is changed only be this max. permitted value. The maximum manipulating speed can be configured separately for rising and falling control outputs. The opening time parameter Topen is to be set to the time value required to change the control output from 0% to 100% with the max. permitted manipulating speed. The closing time parameter Tclose is to be set to the time value required to change the control output from 100% to 0% with the max. permitted manipulating speed.
mxCONTROL Type 8620 13.3.5 Configuration (Code Level: Specialist) Configuration Access via Cfg.menu Access via XMLCfg.-File Abbreviation (menu) Range Enabling / disabling output Transistor Output Type rw rw Output On/Off rw rw Type On/Off, PFM, PWM, fast PWM Yes / No rw rw Inv Inversion of the output signal Additional configuration, if Transistor Output Type = PFM selected Unit pulse duration rw rw Tpuls Unit s, ms Pulse duration rw rw Tpuls 1 … 9999 rw rw Fmax Unit /min, /h Unit Max.
mxCONTROL Type 8620 14 Controller Modules Functions, containing a control or displaying module, can be enabled or disabled directly at the device by enabling or disabling them in the submenu “Modules” of the main menu item “Configuration”. Disabled Control Functions (further on named Function) can no longer be accessed via the menus "Parameter" and "Process Data" after returning to the main menu. Reactivation is possible via the "Configuration" menu or by loading the original configuration.
mxCONTROL Type 8620 14.1.3 System Switch override function (Specialist level) The "System Switch Override" function (function to override the original output value) is used to set the module outputs to "0" if the input used as System Switch detects a "Stand-By" of the superior control system. This function is active in automatic and manual mode. To prevent an excessive switching frequency a delay time can be parameterized.
mxCONTROL Type 8620 Configuration Configuration System Switch Access via Cfg.menu Access via XMLCfg.-File Abbreviation (menu)) Value range Default values (after factory reset or at start of Cfg-FileDownload) "System Switch" function Enable/Disable rw rw System Switch On/Off Off Set point (*) Stand-By rw rw SP -99999 … 99999 (in the unit of assigned input) 0.0 Delay time rw rw Delay 0 … 1800 s 1.
mxCONTROL Type 8620 Potentialfree binary input as "Flow Switch" input voltage logical value Input signal: Input signal: Not inverted (Inv = No) Inverted (Inv = Yes) Open contact (*) 0 / Ok 1 / No Flow 0 … 4.5 V (*) 1 / No Flow 0 / Ok 13 … 35 V (*) (*) The input voltage has to be applied continuously in the according range longer than the parameterized delay time, before the logical value is accepted or changes.
mxCONTROL Type 8620 14.1.5 Maximum Output Timer (MOT) Some control modules contain a maximum output timer in order to detect whether the output(s) has/have been failed. If the module output emitted the maximum output longer than the adjustable maximum output time an alarm “Out fails” is generated, the common alarm output is actuated and in some of these modules the controller output(s) are overridden with 0 %.
mxCONTROL Type 8620 14.2 General PID controller (COMMON_PID) The general PID controller module COMMON_PID is provided for the process control with a single actuator, e.g.: • Flow control with a proportional valve • Temperature control through heating or cooling. The module is also suitable for configuring a cascade control. These modules are explained below.
mxCONTROL Type 8620 The set point value of the subordinate controller must therefore be configured as "int.casc" and connected with the control output of the main controller. The control output 0…100%, provided by the main controller, is then scaled proportionally in the set point Scal- … Scal+ for the subordinate control loop whereby Scal- and Scal+ represent the scaling limits of the process value of the subordinate control loop.
mxCONTROL Type 8620 Set value limiter (SP Limit) The set point limiter is used to limit the adjustable set point through a minimum and maximum value in order to prevent the definition of wrong set points, that is, beyond this valid range by the user/operator. In case of control with external set point or "cascade control" internal set point, the set point limiter can also be used to limit the min. and max. set point.
mxCONTROL Type 8620 Gain/amplification factor Kp: The behaviour of the controller's P-part is influenced by the gain/amplification factor Kp. The gain/amplification factor Kp has units and is parameterized in (% / unit of the process value). Proportional part: Yp[%] = Kp ∗ (SP − PV ) (Module sense of action: normal) The amplification Kp of the process controller relates to the scaled unit of the process value.
mxCONTROL Type 8620 Module Sense of Action: The module sense of action (controller sense of action) is reversible. The module sense of action is normally not inverted. The module sense of action can be changed via the configuration file or in the menu item "Configuration" - see the following figure. Figure 30: Sense of action of the module (COMMON_PID).
mxCONTROL Type 8620 • charact 1 • For simple control output limitation • charact 2 • For control output limitation with scaling of the control output on the control range • e.g. to select actuators a specific only approximately linear operating range • e.g.
mxCONTROL Type 8620 Figure 33: Control output limitation with control range (COMMON_PID). When the pressure scenario changes, the selection values (i.e. lower and upper output limitation Lim- and Lim+) may need to be adjusted! If a tight-closing function is required, the CutOff function must be parameterized accordingly! Output Override The output of this module is influenced at certain states (see Figure 34).
mxCONTROL Type 8620 Processdata and Data Logging Displayed data Abbreviation (menu) Process value Process Value 2 (Set point External) Set point Set point vs. Process value Module output PV Display-Presentation Line Full Trend Screen chart x x x PV2 x SP SP/PV CMD x DataLog. Notes x x x x x x x Only if SP input = External x x Parameter (CodeLevel: Operator) Parameter Sample Time Set point (*) Abbreviation (menu) Tsample SP Value range 0.05/0.1 … 60.
mxCONTROL Type 8620 Configuration (CodeLevel: Specialist) Configuration Access via Cfg.menu Access via XMLCfg.-File Abbreviation (menu) Value range Module active/not active Inversion module sense of action Set point rw rw rw rw Module InvMod On/Off Yes / No rw rw SP Input Internal / External / Int.Casc Internal Set point limiter Set point limiter Lower set point limit (*) rw rw rw rw SP Limit SP Limit SPLim- Yes / No Scal- ...
mxCONTROL Type 8620 14.3 Conductivity Control Modules Several control strategies are implemented for a closed loop control of system water conductivity by means of a bleed valve. Depending on the fluctuation of the incoming water (make-up water) quality, either a simple or a ratio control should be used.
mxCONTROL Type 8620 14.3.1 On-/Off-Control (COND_CONTROL) This module allows a simple On-/Off Control of the conductivity with the optional interface to the "Biocide-Dosing" module. These modules are explained below. Figure 35: COND_CONTROL Pre-bleeding and "Biocide Dosing" Module For optimizing the biocide dosing the bleed valve is held shut during the biocide dosing by means of output override so that the contact time of the dosed biocides is maximized.
mxCONTROL Type 8620 On/Off-Controller The On/Off-Controller is used to control simple on/off-outputs, e.g. a bleed valve. The On/Off-controller outputs either 0 % (off) or 100 % (on), depending on the current process value and the internal state of the controller (see Figure 36). The controller sense of action is reversible. Usually the sense of action is normal (not inversed). The sense of action can be changed in the configuration menu or with the configuration file.
mxCONTROL Type 8620 Maximum Output Timer (MOT) This function monitors the controller output in automatic mode. If the controller output puts out the 100% control output longer than the defined max. output time (+Tm), the "Out fails" alarm is put out and the general alarm output is enabled. The controller output will not be influenced by the alarm. The alarm message has to be acknowledged by the operator on the device, even if the operating mode was changed.
mxCONTROL Type 8620 Processdata and Data Logging Displayed data Abbreviation (menu) Process value Process value (in ppm) PV PV Set point Set point vs. Process value Module output MOT Alarm (Maximum Output Timer Alarm) SP SP/PV CMD Display-Presentation Line Full Trend Screen chart x x x x x x DataLog.
mxCONTROL Type 8620 14.3.2 PI-Control (COND_PI) This module permits a Proportional Integral (PI)-Control of the conductivity with an optional interface to the "Biocide-Dosing" module. The functionality is same as in the conductivity On/Off-Controller COND_CONTROL, except the internal PI-Controller. These modules are explained below. Figure 39: COND_PI Pre-bleeding and "Biocide Dosing" Module It is the same module as described in the chapter above, (Chapter 14.3.
mxCONTROL Type 8620 Output converter Normally, the module output CMD for the selection of actuators is only looped through the output converter and directed directly to the real output linked via module output 1. However, the module "COND_PI" is also provided for controlling a motorized (bleed) valve by means of a time controlled 3-point-step-output.
mxCONTROL Type 8620 Processdata and Data Logging Displayed data Abbreviation (menu) Process value Process value (in ppm) PV PV Set point Set point vs. Process value Module output MOT Alarm (Maximum Output Timer Alarm) SP SP/PV CMD Display-Presentation Line Full Trend Screen chart x x x x x x DataLog.
mxCONTROL Type 8620 Configuration (Code Level: Specialist) Configuration Module active/not active Inversion module sense of action Pre-bleed and "Biocide dosing output override" TDS display System switch override Flow switch override Maximum Output Timer 3-point step output Page 102 Access via Cfg.menu rw rw Access via XMLCfg.
mxCONTROL Type 8620 14.3.3 On-/Off-Ratio Control (COND_CONTROL_RATIO) This module allows a simple On-/Off ratio control of the conductivity with an optional interface to the "Biocide-Dosing" module. These modules are explained below. Figure 42: COND_CONTROL_RATIO Ratio Since the quality of the incoming water (make-up water) is varying, the conductivity of the incoming water is measured and used for determining the current set point of the conductivity control of the system water.
mxCONTROL Type 8620 Pre-bleeding and "Biocide Dosing" Module Compare the section "Pre-bleeding and "Biocide Dosing" Module" in chapter 14.3.1. On/Off-Controller Compare the section "On/Off-Controller" in chapter 14.3.1. Output Override The output of this module is influenced at certain states (see figure). Figure 44: Output override (COND_CONTROL_RATIO) "Biocide dosing" override Refer to the description on "Biocide Dosing" override in the section "Output Override” of chapter 14.3.
mxCONTROL Type 8620 Processdata and Data Logging Displayed data Abbreviation (menu) Process value System Channel Process value System Channel (in ppm) Process value Make-Up Channel Set point Set point vs. Process value System Channel Module output Alarm Maximum Output Timer PV1 PV1 Display-Presentation Line Full Trend Screen chart x x x x x PV2 x SP SP/PV1 x CMD x x x DataLog.
mxCONTROL Type 8620 14.3.4 PI-Ratio Control (COND_PI_RATIO) This module allows a simple PI ratio control of the conductivity with an optional interface to the "Biocide-Dosing" module. These modules are explained below. Figure 45: COND_PI_RATIO Ratio Please refer to the description on section "Ratio" in chapter 14.3.3 Pre-bleeding and "Biocide Dosing" Module Please refer to the description on section "Pre-bleeding and "Biocide Dosing" Module" in chapter 14.3.
mxCONTROL Type 8620 Maximum Output Timer (MOT) Compare the description of the Maximum Output Timer in section "Maximum Output Timer (MOT)" in chapter 14.3.2. Total Dissolved Solids (TDS)-Display The TDS display is only available for the conductivity process value of the System Channel. Please refer to the description on section "Total Dissolved Solids (TDS)-Display" in chapter 14.3.
mxCONTROL Type 8620 Configuration (CodeLevel: Specialist) Configuration Module active/not active Inversion module sense of action Pre-bleed and "Biocide dosing output override" TDS display System switch override Flow switch override Maximum Output Timer Page 108 Access via Cfg.menu rw rw Access via XMLCfg.
mxCONTROL Type 8620 14.4 Corrosion Display (CORROSION-DISPLAY) The corrosion display indicates the corrosion rate measured by the corrosion transmitter. Although this function is not used directly for control purposes, it provides useful system status information. These modules are explained below.
mxCONTROL Type 8620 14.5 pH Controller Modules (PH_ACID_CAUS) and (PH_ACID_OR_CAUS) The pH control function is designed for P and PI control. The implemented strategies for pH control include an acid and caustic dosing regime (PH_ACID_CAUS), whereas each section can be set independently. Furthermore, the module PH_ACID_OR_CAUS is available, which realises a pH control with only acid or only caustic substances dosing. 14.5.
mxCONTROL Type 8620 Figure 49: Slope of the ramp In manual mode the set point according to the ramp function is set to the current process value. If the ramp function is activated, the user can adjust the slope of the ramp to the particular conditions. PI Controller The description of the Proportional Integral (PI)-Controller is consistent to the PI-part of the PID Controller in section “PID Controller” in chapter 14.2. Specifics / differences are described below.
mxCONTROL Type 8620 Output Override The output of this module is influenced at certain states (see Figure 51). Figure 51: Output override (PH_ACID_CAUS) Acid Stop Limit – Pump Stop (ASL PumpStop) The pH control module can be connected internally by means of configuration with a corrosion display for an additional failsafe function. Therefore the ASL-Alarm of the assigned Function (configured as corrosion display) is evaluated in order to prevent overdosing of acids or bases.
mxCONTROL Type 8620 Processdata and Data Logging Displayed data Abbreviation (menu) Process value Set point Set point vs. Process value Module output Acid Module output Caustic Alarm Maximum Output Timer PV SP SP/PV CMD A CMD C Display-Presentation Line Full Trend Screen chart x x x x x x x x x x x DataLog.
mxCONTROL Type 8620 Configuration (CodeLevel: Specialist) Configuration Access via Cfg.menu Access via XMLCfg.-File Abbreviation (menu) Value range Module active/not active Inversion module sense of action Set point limiter Set point limiter Lower set point limit (*) rw rw rw rw Module InvMod On/Off Yes / No rw rw rw rw SP Limit SP Limit SPLim- Yes / No Scal- ...
mxCONTROL Type 8620 14.5.2 pH Control (PH_ ACID_OR_CAUS) This module permits a pH-Control with Acids or Bases and with the optional interface to the "Corrosion Display" module for additional overdosing failsafe function. Set Point (SP) These modules are explained below. SP Limit Several Events SP Ramp Process value (PV) PI – Controller 4..
mxCONTROL Type 8620 Proportional Controller Output CMD Proportional Controller Output CMD Deadband SP Module - sense of action: normal PV Deadband SP Module - sense of action: inverted PV Figure 53: sense of action and deadband Example: If additional dosing of acids is desired, the "normal" sense of action is set, If additional dosing of bases is desired, the "inverse" sense of action is set. Output Override The output of this module is influenced at certain states (see Figure 54).
mxCONTROL Type 8620 The pH controller output will be overridden with 0 % until the operator acknowledges the alarm message with the soft key buttons in the process data menu, even if operation mode was changed. The internal timer counting the period of the maximum control output will be reset if the control output is smaller than the maximum control output and the alarm has not yet been triggered. The maximum output is determined by the parameter "Upper output limit Lim+".
mxCONTROL Type 8620 Configuration (Code Level: Specialist) Configuration Access via Cfg.menu Access via XMLCfg.-File Abbreviation (menu) Value range Module active/not active Inversion module sense of action Set point limiter Set point limiter Lower set point limit (*) rw rw rw rw Module InvMod On/Off Yes / No rw rw rw rw SP Limit SP Limit SPLim- Yes / No Scal- ...
mxCONTROL Type 8620 14.6 Dosing of oxygen absorption media 14.6.1 Flow and temperature-based dosing (O2_SCAV_CTRL_RATIO) This module permits the dosing of oxygen-absorbing substances which are added to the hot water as anti-corrosive, based on the flow and temperature of the feed water). These modules are explained below.
mxCONTROL Type 8620 Oxygen concentration Since the relationship between temperature and dissolved oxygen is non-linear, the module converts the temperature input information into "Dissolved oxygen concentration" [mg/l]. This conversion takes place on the basis of the correlation curve in the memory (see Figure 57).
mxCONTROL Type 8620 Output Override The output of this module is influenced at certain states (see figure).
mxCONTROL Type 8620 Configuration (Code Level: Specialist) Configuration Access via Cfg.menu Access via XMLCfg.
mxCONTROL Type 8620 14.6.2 Process-value-proportional dosing (OPEN_PROP) This module calculates the control output proportionally to the scaled process value. The module can be used, e.g. for the Dosing of oxygen-absorbing substances if the temperature impact can be neglected and dosing shall be done only in proportion to the feed water flow. These modules are explained below.
mxCONTROL Type 8620 Output Override The output of this module is influenced at certain states (see figure). Safety Output Value Manual Output Value 0% Sensor-/Input fault Operation mode 1 Manual 0% System Switch Flow Switch 1 1 Output from Output Limiter Module 0 Automatic 0 Sensor-/Input fault of assigned Flow-Input 0 System Switch override function can be enabled or disabled Output CMD Flow Switch override function can be enabled or disabled Figure 62: Output override (OPEN_PROP).
mxCONTROL Type 8620 14.7 Chlorine / Redox Control (CL_ORP) The chlorine/redox control function is designed for P and PI control. The chlorine/redox output is designed to provide a series of output pulses (for the control of electronic solenoid operated chemical dosing pumps). These modules are explained below. Figure 63: CL_ORP PI Controller The description of the Proportional Integral (PI)-Controller is consistent to the PI-part of the PID Controller in section “PID Controller” in chapter 14.2.
mxCONTROL Type 8620 Output Override The output of this module is influenced at certain states (see figure).
mxCONTROL Type 8620 Processdata and Data Logging Displayed data Abbreviation (menu) Process value Set point Set point vs. Process value Module output Alarm Maximum Output Timer PV SP SP/PV CMD Display-Presentation Line Full Trend Screen chart x x x x x x x x x DataLog.
mxCONTROL Type 8620 14.8 Batch Dosing (BATCH) The input signal for the batch controller is derived from one of the digital inputs, configured as a pulse counter input. The Batch dosing module is used to control a dosing pump (e.g. for inhibitors). A detected amount of pulses (volume) leads to a dosing event for predetermined time. These modules are explained below. Figure 66: BATCH Batch Controller in Automatic Mode The incoming pulses at the assigned input are counted.
mxCONTROL Type 8620 ... When a dosing event occures, - Batch1 immediately doses for 10 minutes. - Batch2 waits 11 minutes, and doses afterwards for 3 minutes. You have to ensure that your Makeup is lower than 1000 L in 24 minutes in order to stagger dosing as required. Batch Controller in Manual Mode In manual Mode no incoming pulses are counted and the assigned output is inactive. An active dosing process is also cancelled in manual Mode. The dosing timer will be reset.
mxCONTROL Type 8620 Parameter (CodeLevel: Operator) Parameter Unit of Batch Size Abbreviation (menu) SP BSi unit Value range Default values (after successful download of Cfg-File) L L, hL, m3, Gal US, bbl US, gal Imp, ft3, yd3, Pulse*) Batch Size (target) SP BSi 0.1 … 9999.
mxCONTROL Type 8620 14.9 Time scheduled Biocide Dosing (BIOCIDE_DOSING) The Biocide Dosing Module is designed for a fully automated dosing regime within 14 days. These modules are explained below. Figure 68: BIOCIDE_DOSING Real Time Clock (RTC) Accurate timing is maintained by a battery backed-up real time clock. The real time clock can be adjusted by the operator. Channel 1 and Channel 2 Biocide dosing is controlled by a dual channel 14-day timer, programmable during the parameterization process.
mxCONTROL Type 8620 Pre-bleed function: After the 14-day timer has started biocide dosing, it may be desirable to delay the execution until the corresponding system water conductivity was reduced to a lower level or the parameterizable max. duration of the pre-bleed function +TmPB was reached. The corresponding level of the system water conductivity before dosing is defined by the PB value (Pre-Bleed Limit) - compare Figure 69 and the chapters on the conductivity modules (14.3.1 ff).
mxCONTROL Type 8620 The Figure 69 demonstrates the relationship between system water conductivity and biocide dosing.
mxCONTROL Type 8620 Output Override The output of this module is influenced at certain states (see the following figure). Figure 70: Output override (BIOCIDE_DOSING) Processdata and Data Logging Displayed data State Channel 1 State Channel 2 Next dosing event Channel 1 Next dosing event Channel 2 Module output channel 1 Module output channel 2 Page 134 Abbreviation (menu) CMD 1 CMD 2 Display-Presentation Line Full Trend Screen chart x x x x x x DataLog.
mxCONTROL Type 8620 Parameter (CodeLevel: Operator) Parameter Channel 1 Pre-bleed limit (in combination with COND_CONTROL and COND_PI) Abbreviation (menu) Value range PB 0 … 99999 (The unit is defined by the unit of the process value of the linked conductivity module) PB ratio -99999 ... 1.0 (The unit is defined by the unit of the process value of the linked conductivity module) 1 ...
mxCONTROL Type 8620 Figure 71: Parameterizing the Biocide 14-Day Dosing Timer The "Dosing Events” must be selected as "On" in order to actually activate the dosing events Dos 1 to Dos 8 for this day. Even if all dosing events of a day are marked as “Off”, their start time and the „bells“ will be displayed! For prevention of the expiring of dosing events in a channel in automatic mode, the start times in a channel should be chosen due to the following rule: Start Time >= Start time previous dos.
mxCONTROL Type 8620 14.10 Monitoring Process Values (MONITOR_PV) This module is designed for external monitoring of up to two process values, e.g. via the optional 4…20 mA output. But also the relay outputs or the transistor outputs can be connected. It is possible to use an input signal as a source for another (controller) module and loop the same input signal through for external monitoring. This module can also be used for logging process values only without any output connected.
mxCONTROL Type 8620 Parameter (CodeLevel: Operator) No parameter available. Configuration (Code Level: Specialist) Configuration Access via Cfg.menu Access via XMLCfg.
mxCONTROL Type 8620 14.11 Dual Channel Totalizer (TOTALIZER) This module allows separate summarizing of total amount of flow from up to 2 digital pulse counter inputs. By means of configuration file the totalizer can be reduced from dual channel to single channel. These modules are explained below. Figure 73: TOTALIZER Totalizer 1, 2 Each of the both totalizers has a main and a daily totalizer.
mxCONTROL Type 8620 0 0 System Switch Flow Switch 1 1 0 0 PV 1 Totalizer 1 0 0 System Switch Flow Switch 1 1 0 0 PV 2 Totalizer 2 System Switch override function can be enabled or disabled Flow Switch override function can be enabled or disabled Figure 74: Override (TOTALIZER) Processdata and Data Logging Displayed data Abbreviation (menu) Process value 1 Main Totalizer 1 Daily Totalizer 1 PV1 TOT1 TOT1. Process value 2 Main Totalizer 2 Daily Totalizer 2 PV2 TOT2 TOT2.
mxCONTROL Type 8620 Configuration (Code Level: Specialist) Configuration Module On / Off Channel Mode (Main & Daily) Totalizer 1 Unit Reset PV1 Unit PV1 (Main & Daily) Totalizer 2 Unit Access via Cfg.menu rw r Access via XMLCfg.
mxCONTROL Type 8620 15 Alarm and Error Messages 15.1 Alarm function This function actuates the common alarm output whenever a controlled variable exceeds adjustable upper and lower alarm limits or the datalogging failed. If an alarm occurs in at least one of the processes (see Figure 10), this is indicated by the yellow flashing LED on the A/M-Key. Note! If a switching hysteresis is present, the triggering of the alarm is impacted by the value definition (e.g.
mxCONTROL Type 8620 The alarm and warning limits for inputs can be changed in the configuration menu in the menu of the desired input. The alarm and warning limits for oxygen (module O2_SCAV_CTRL_RATIO) can be set in the "Parameter" main menu in the submenu belonging to the module. Configuration (Code Level: Specialist) Configuration Access via Cfg.menu Access via XMLCfg.
mxCONTROL Type 8620 15.2 Displaying (Input-) Alarms and different (Output-) States The input alarms and output states are displayed in the "Process data" main menu in the "Input" submenu items and in the submenus of the corresponding modules.
mxCONTROL Type 8620 15.3 Error Messages and Warnings Most of the error messages and warnings are displayed as a short message for approx. 2 seconds on the display. There is an internal display buffer for maximum 20 short messages. If one of the 4 soft keys below the display is pressed while a short message is shown, the short message will disappear. A permanent message is displayed until the operator acknowledges the message with the OK-key.
mxCONTROL Type 8620 Warning or Error message Displayed as Displaying interval CalibFault 4-20mA Out permanent message once after init Defect Calibration data for at of config data least one configured 4…20 mA Output. as long as fault is not The concerned outputs will remedied output 0 mA. (Output state: FK) Cause Remedy Contact the Bürkert Sales Center.
mxCONTROL Type 8620 Warning or Error message Displayed as Displaying interval Cause Remedy XX = 01 … 08, 21, Y = 1: The cause is often a poweron-reset or software reset while updating Eeprom values. Report this error to Bürkert Sales Center. All other errors: Proceed as for XX = 00, Y = 1. If this error occurred more than once, then the device has to be replaced. Contact the Bürkert Sales Center regarding replacing the device.
mxCONTROL Type 8620 Warning or Error message Displayed as Displaying interval Cause Remedy Max.Value overflow short message once The current set value is greater than the maximum value of this parameter. Edit the value, if required, and then confirm the new value by pressing ENTER. If the old value should be kept, press ESC. The value is set to the maximum value and can be edited before confirmation. Min.
mxCONTROL Type 8620 Warning or Error message Displayed as Displaying interval Cause Remedy SD-Card locked short message once SD card is locked. No writing operation possible. If the writing should be allowed: 1. Return in the menu structure to that point, where the short message “SD can be removed” is displayed. (during upload in file selection window) 2. Remove the SD card. Set the switch of the SD card to the position “unlocked”. 3. Put the SD card into the SD card slot again. 4.
mxCONTROL Type 8620 Warning or Error message Displayed as Displaying interval Cause Remedy SD: Error Open File short message once File on SD card could not be opened. Current Operation failed. Try again up to 3 times. during upload or once data logging: permanent message If no success, then check the SD card with the program Chkdsk.exe (MS Windows only). If unsuccessful, format the SD card as described for the error message "SD: Error FileSyst". If no success try another SD card.
mxCONTROL Type 8620 Warning or Error message Displayed as Displaying interval Cause Remedy SMTP Error X Y short message once Communication with SMTP mail server failed A: Check your configured email recipients. X: Communication phase: CONNECT, HELO, MAIL, RCPT, RCPT 1, RCPT 2, DATA, QUIT Y: SMTP error code B: Check your configured mailserver settings. C: Contact your local network administrator. Report this error message. Check, if the requirements for email notification were met.
mxCONTROL Type 8620 Warning or Error message Displayed as Displaying interval Cause Remedy User Calib failed permanent message once User calibration of 4-20mA Output failed. Old user calibration values kept. Wrong ParamFile! short message once The currently downloaded Parameter-File does not suit the current configuration. Check the wiring and make sure that you connected load and the ampmeter correctly. Try again. Refer also to Description of User Calibration in Chapter 13.
mxCONTROL Type 8620 16 Maintenance and troubleshooting 16.1 Safety Notes DANGER! Danger from electrical voltage! Reaching into the system presents an acute risk of injury.
mxCONTROL Type 8620 17 Spare parts CAUTION! Danger from wrong accessories and wrong spare parts! Wrong accessories and unsuitable spare parts may cause injuries and damages to the device or its environment. Use only original accessories and original spare parts of Bürkert Werke GmbH & Co. KG. 18 Packing and transport CAUTION! Transport damages! Insufficiently protected devices can be damaged during transport.
mxCONTROL Type 8620 21 Appendices 21.1 Project (for example "BW 06") 21.1.1 Input/Output Assignment – project "BW 06" 21.1.2 Wiring Diagram Example for Project "BW 06" L mxCONTROL 8620 Hardware version 1 42 30 44 46 71 48 0V internally connected 53 74 92 95 Inhibitor Pump N Oxygen Scavenger Pump Bleed Valve Common Alarm E 32 50 54 75 96 For sensor inputs shielded cables are recommended for best EMC. Connect the shield with the respective GND of Instrumentation Supply.
mxCONTROL Type 8620 21.2 Power Supply of Actuators/Sensors 21.2.1 Power Supply out of the mxCONTROL 21.2.2 Separate Power Supply mxCONTROL 8620 Power Supply 100 .. 240 V AC max. 10 A each L Relay 1 ... Relay 2 Instrumentation Supply (24 V DC) ... L max. 10 A each N Actuator 1 N PE L Actuator 2 N ... Actuat./ Sensor 1 Actuat./ Sensor 2 ... PE 0V Summarized extracted current at Instrumentation supply side: max. 1.
mxCONTROL Type 8620 21.3 Hardware Version 1 21.3.1 PIN Assignment for Power Supply Level (Power Supply) Pin No.
mxCONTROL Type 8620 21.3.2 PIN Assignment for Low Voltage Level (Instrumentation Supply) PIN no.
mxCONTROL Type 8620 21.3.
mxCONTROL Type 8620 Pt100 Inputs Example: Connection of a Pt100-sensor to AnalogIn 1 Analog Outputs 4…20 mA Example: Connection of a device with analog output 4…20 mA to 4…20mA-Ausgang 1 (if necessary – connection of the device also to the 24 V DCsupply – Pin 62) Transistor Outputs mxCONTROL 8620 Power Supply L N E XX XX XX XX XX XX Examples: Hardware-Version 1 (1): Connection of a proportional valve etc.
mxCONTROL Type 8620 Relay Outputs Examples: Connection of a device working with mains voltage (1): to the „break contact“ of Relay output 1 (2): to the „make contact“ of Relay output 2 Page 161
mxCONTROL Type 8620 21.4 Hardware version 2 21.4.1 PIN assignment for power supply level (power supply) Pin No.
mxCONTROL Type 8620 21.4.2 PIN Assignment for Low Voltage Level (Instrumentation Supply) PIN no.
mxCONTROL Type 8620 21.4.3 Connection Examples for Inputs and Outputs Digital-/Frequency Inputs Input is configured as: - Potentialfree binary input - Frequency input - Pulse counter input Examples: Connection of a potentialfree contact/frequency outputs/ pulse output (1): acting as PNP to DigIn 1 (2): acting as NPN to DigIn 2 Digital Inputs mxCONTROL 8620 Hardware-Version 2 Power Supply Instrument.
mxCONTROL Type 8620 Analog Inputs 4…20 mA Examples: (1): Connection of a 2-wire-sensor to AnalogIn 1 (2): Connection of a 3-wire-sensor to AnalogIn 2 Pt100 Inputs Example: Connection of a Pt100-sensor to AnalogIn 5 Page 165
mxCONTROL Type 8620 Analog Outputs 4…20 mA Example: Connection of a device with analog output 4…20 mA to 4…20mA-Ausgang 1 (if necessary – connection of the device also to the 24 V DCsupply – Pin 53) Transistor Outputs Examples: (1): Connection of a proportional valve etc.
mxCONTROL Type 8620 Relay Outputs Examples: Connection of a device working with mains voltage (1): to the „break contact“ of Relay output 1 (2): to the „make contact“ of Relay output 2 Page 167
mxCONTROL Type 8620 21.5 Main Menu Structure – Menu Tree (Example for Project "BW 06T") 21.5.1 Processdata – Inputs – Outputs These menu tables are examples. The menu is logically structured and self-explanatory. More detailled and complete information can be found in the belonging chapters before – summarized in the process data, parameter and configuration tables.
mxCONTROL Type 8620 21.5.
mxCONTROL Type 8620 21.5.
mxCONTROL Type 8620 21.5.4 Configuration of the Codes to Item 2 from Item 2 BW 06 Processdata Parameter Configuration System settings 3 ENTER to Item 3-5 from Item 3-5 Configuration Inputs Outputs Modules Codes 3-1 EXIT ENTER EXIT ENTER ... EXIT ( ++ ) Reinit ... ... Use the Arrow-Up-/ Down-Softkeys for scrolling through the list. ( ** ) Code: Spec.
mxCONTROL Type 8620 21.5.5 System Settings to Item 3 from Item 3 BW 06T Processdata Parameter Configuration System settings 4 ENTER to Item 4-5 ENTER EXIT System settings Language Display Factory Reset Device Info 4-1 EXIT ENTER ... EXIT from Item 5 to Item 5 EXIT ... ...
mxCONTROL Type 8620 21.5.6 Up-/Download - Download to Item 4 from Item 4 (*/**) BW 06T Parameter Configuration System settings Up-/Download 5 ENTER Up-/Download ----- SD-Card ----Download Upload =================== 5-2 EXIT ENTER ENTER EXIT ENTER EXIT A to B Item 5-2-2 from Up-/Download processes on SD-Card are only possible if Data Logging is disabled. ! No Up-/Download processes on SDCard are possible during active Data Logging.
mxCONTROL Type 8620 21.5.
mxCONTROL Type 8620 21.5.8 Data Logging / Calibration / Clock to Item 5 from Item 5 to Item 6-8 from Item 6-8 Only if Datalog Failed alarm is active, menu item 6-1 will be displayed as a full screen for alarm reset.
mxCONTROL Type 8620 21.6 Data Logging File – Example #HEADER DatalogFile Device Firmware Project Cfg-File Param-File Rev Source ID Serial ID Rev Name Name Applied Name Applied Only the module outputs are logged on the output side. A.00 DEVICE 188133 1001 797645 C.00.00.00 Project ABCD Project_ABCD.cfg 19.04.2010 Project_ABCD.par 21.04.2010 Exception for transistor outputs in PWM or Fast-PWM mode: the speed limitated output value is logged.
mxCONTROL Type 8620 Line 1: Line 2: Line 3: Line 4: Line 5: Line 6: Line 7: Legend (User defined) names of Control Functions Configured modules (short module name) Internal code for PC-Tool Data format Internal names of the monitored variables User defined name of assigned input/output Units of observed variables Biocide Dosing "State Ch1" and "State Ch2" 0 Manual Mode 1 Ready - Waiting for next dosing start 2 Prebleed 3 Main Dose 4 Delay after Main-Dose 5 Post Dose 6 Delay after Post-Dose 7 Stand-By (Sys
