Operating Manual Programmable Controller LC6 1.951.5220-V2 19515220-V2.DOC 06/13 JULABO GmbH 77960 Seelbach / Germany Tel. +49 (0) 7823 / 51-0 Fax +49 (0) 7823 / 24 91 info@julabo.de www.julabo.de 26.07.
Congratulations! You have made an excellent choice. JULABO thanks you for the trust you have placed in us. This operating manual has been designed to help you gain an understanding of the operation and possible applications of our circulators. For optimal utilization of all functions, we recommend that you thoroughly study this manual prior to beginning operation.
TABLE OF CONTENTS Operating manual .............................................................................................................................5 1. Intended use ..............................................................................................................................5 1.1. 2. Description .........................................................................................................................5 Operator responsibility – Safety recommendations .........
8.5. Analog inputs/outputs .......................................................................................................35 8.6. Limits ................................................................................................................................38 8.7. Interface ...........................................................................................................................38 8.8. Sensors ...........................................................................
Operating manual 1. Intended use Fulfilling its principle task, reliable temperature control and measurement, the LC6 temperature controller also implements safety and monitoring functions, particularly in the areas of chemical research and quality control. The sophisticated capabilities of the unit allow wide application with electrical heating devices such as heating hoods, heating baths, heating pads and bandages, water and oil baths.
Operator responsibility – Safety recommendations If you have any questions concerning the operation of your unit or the information in this manual, please contact us! Contact: JULABO GmbH Eisenbahnstraße 45 77960 Seelbach / Germany Tel. +49 (0) 7823 / 51-0 info@julabo.de Fax +49 (0) 7823 / 24 91 www.julabo.de Safety instructions for the operator: You have received a product designed for industrial use.
1 Warning label W00: Colors: yellow, black Danger area. Attention! Observe instructions. (operating manual, safety data sheet) 2 Mandatory label M018: Colors: blue, white Carefully read the user information prior to beginning operation. Scope: EU or Semi S1-0701 Table A1-2 #9 Carefully read the user information prior to beginning operation. Scope: USA, NAFTA 2 Particular care and attention is necessary because of the wide operating range.
Operator responsibility – Safety recommendations 2.2. EC Conformity The products described in the operating instructions conform to the requirements of the following European guidelines: Low voltage regulations with respect to legal harmonization of the member countries concerning electric devices for use within certain voltage limits. EMC guideline with respect to legal harmonization of the member countries concerning electromagnetic compatibility. JULABO GmbH Eisenbahnstr.
2.4. Technical specifications LC6 Adjustable temperature range °C -100 ... 400 Display accuracy % ±0.5 ±1Digit Temperature stability °C >±0.03 Temperature selection via keypad remote control via personal computer digital indication on DIALOG-Display (LCD) indication on monitor Temperature indication Resolution °C MULTI-DISPLAY (LED) DIALOG-DISPLAY (LCD) 0.01 Absolute Temperature Calibration ATC INT ATC EXT °C °C ±9.99 ±9.
Operator responsibility – Safety recommendations Safety installations according to IEC 61010-2-010: Excess temperature protection adjustable from 0 °C ... 420 °C Supplementary safety installations High temperature warning function Low temperature warning function Supervision of the working sensor Alarm indication optical + audible (in intervals) optical + audible (in intervals) plausibility control optical + audible Environmental conditions according to EN 61 010, part 1: Use only indoor.
Operating instructions 3. Safety notes for the user 3.1. Explanation of safety notes In addition to the safety warnings listed, warnings are posted throughout the operating manual. These warnings are designated by an exclamation mark inside an equilateral triangle. “Warning of a dangerous situation (Attention! Please follow the documentation).” The danger is classified using a signal word. Read and follow these important instructions for averting dangers.
Safety notes for the user 12 attachment. Observe the limited working temperature range when using plastic bath tanks. Do not stay in the area below the unit. Make sure you read and understand all instructions and safety precautions listed in this manual before installing or operating your unit. Check the filling level of the bath fluid from time to time. The heater must always be fully covered with the bath fluid! Never operate the unit without bath fluid in the bath.
4.
Operating controls and functional elements Socket for safety sensor 19 SF Socket for internal measurement and control sensor 20 INT Socket for external measurement and control sensor 21 EXT Rear view 30 SERIAL Interface RS232/RS485 Programmer input and temperature recorder output 31 REG+E-PROG Socket: control cable of JULABO refrigerated circulator or output for alarm messages 32 Stand-by input (for external emergency switch-off) 33 STAND-BY Alarm output (for external alarm signal) 34 35 36
5. Operating procedures 5.1. Installation 5.2. The unit should be set up at a dry location. Place the unit in an upright position and do not obstruct the ventilation. A wall distance of at least 10 cm must be maintained for ventilation, allowing internal heat to be conducted away from the unit. If one or more temperature controllers are set up in a cabinet for example, take care of good ventilation (waste heat per unit = approx. 60 Watts).
Operating procedures 5.3. Connecting the temperature sensors To avoid error message and safety shutdown (see page 40), attach sensors “SF” and “INT” before switching the instrument ON. Attach the working sensor to socket labeled “INT” and the safety sensor to socket labeled “SF”. Sensor calibration: When the controller is first placed into operation or whenever a sensor is replaced, a working sensor calibration must be carried out (ATC - see page 39).
5.5. Applications Controlling an open bath with a direct heating device and internal control: A heating device is used to heat the bath fluid. Both the measurement and control sensor „INT“ and the safety sensor „SF“ must be connected to the LC6 and immersed in the bath. If a bath is to be operated at or near the ambient temperature, countercooling may be necessary to ensure bath stability. This is accomplished by circulating a coolant such as tap water through a cooling coil immersed in the bath.
Operating procedures Controlling an open bath with an indirect heating device and internal control: The bath fluid is heated with a device providing indirect heat, such as a heating hood. Both the measurement and control sensor „INT“ and the safety sensor „SF“ must be connected to the LC6 and immersed in the bath. Controlling an open bath with an indirect heating device and external control: The bath liquid is heated indirectly with a water bath for example.
6. Operating procedures 6.1. Power connection Caution: Only connect the unit to a power socket with earthing contact (PE – protective earth)! The power supply plug serves as safe disconnecting device from the line and must be always easily accessible. Never operate equipment with damaged mains power cables. Regularly check the mains power cables for material defects (e.g. for cracks).
Manual operation 7. Manual operation 7.1. Start - Stop Start: Press the start/stop key . The MULTI-DISPLAY (LED) indicates the actual bath temperature. (example: 21.03 °C) Stop: . Press the start/stop key The MULTI-DISPLAY (LED) indicates the message "OFF". 7.2. The unit also enters the safe operating state "OFF" or "r OFF after a mains power interruptance. The temperature values entered via the keypad remain in memory.
Selecting the working temperature: 7.3. Press the setpoint key and then enter . Press the setpoint key and then enter . Warning functions More protection for your samples in the bath! An audible signal sounds in intervals when the actual temperature value exceeds one of the set limits (patented). Setting the high temperature limit: Press the key . The value previously set appeears on the DIALOGDISPLAY (LCD) (example: 305.00°C).
Manual operation 7.4. Setting the safety temperature (with shutdown function) (excess temperature protection) Press the key to indicate the safety temperature value on the MULTI-DISPLAY and using a screwdriver simultaneously turn the setting screw to the desired value (example: 50 °C). Setting range: 0 °C to 420 °C in 2 °C steps This safety device is independent of the control circuit.
7.5. Internal / external control The programmable controller offers the possibility of internal temperature control in a primary bath vessel or external control directly in an external system. Setup for external control: ext. Pt100 Connect a Pt100 sensor to the socket „EXT“ of the programmable controller, if necessary perform a calibration using the „ATC Ext:“ function (see page 39) and then securely fix the sensor in the external system.
Menu functions 8. Menu functions Press the MENUE key to enter the menu level. Use the up/down cursor keys submenu and press enter Press escape 24 to select the desired . to return to the previous menu level.
8.1. Configuration By means of the configuration functions, operation of the programmable controller can be optimized for the current application. Press enter to select the configuration submenu. to select the Use the up/down cursor keys desired option. A flashing line indicates that a value needs to be entered. Press the P-key enter to select the parameter and press . Press escape to return the previous menu level.
Menu functions Note: Requirement for an identification of the controlled system: The programmable controller must heat to a setpoint temperature at least 10 °C above the previous setpoint using the adjusted heating power. When the adjusted control parameters Xp, Tn and Tv are too high, this requirement may not be given with respect to on how much the setpoint temperature has to change. In this case, prior to carrying out an identification in the „OFF“ state, set the control parameters to lower values.
Autostart Note: The programmable controller has been configured and supplied by JULABO according to N.A.M.U.R. recommendations. This means for the start mode, that the unit must enter a safe operating state after a power failure (nonautomatic start mode). This safe operating state is indicated by „OFF“ or „rOFF“, resp. on the MULTI-DISPLAY (LED). A complete shutdown of the main functional elements such as heater and circulation pump is effected simultaneously.
Menu functions 8.2. Control parameters When performing an identification for the controlled system (temperature applications system) (see page 25), the control parameters Xp, Tn, and Tv will be automatically determined and stored. Each parameter may be manually set via the keypad if necessary, to allow optimum control performance. Press enter parameters“. Xp = to select the submenu „control Use the up/down cursor keys to select the desired option.
8.3. Start of a profile The start menu of the programmable programmer allows calling up and defined starting of one of six previously stored temperature profiles. There are two possibilities for manually starting a program: 1. Starting a program from the OFF status: The programmer switches back to the OFF status at the end of the program. 1. 2. 2. Starting a program from the operating status.
Menu functions Example: hour.min 6:00 h When selecting the parameter time, a new menu level is called up for entry of the start time. A flashing segment indicates that a start time needs to be entered. hour.min Start time Day.Mon day and month Year year Set each entry with enter . Start no / yes A flashing line indicates that the parameter „yes“ needs to be entered. Press the P-key enter to select the parameter and press .
8.3.1. Interrupting a profile Interrupting a profile: to interrupt or restart a profile. Press the start/stop key The setpoint and time period set for the corresponding section are thus stopped at the values presently achieved. The programmable controller is put on hold and the message „pause“ flashes on the DIALOG DISPLAY (LCD). A profile can be interrupted or restarted by an external emergency shut-off.(see page 6).
Menu functions 8.4. Integrated programmer The integrated programmer allows any desired temperature program sequences to be realized. Such a temperature sequence is called profile. A profile consists of individual sections defined by duration (t:) and target temperature. Target temperature is the setpoint (T:), that is achieved at the end of a section. The programmer uses time and temperature difference values within a section to calculate a temperature ramp. Press enter to select the submenu „Int.
Edit Compile profiles: A flashing segment indicates that a number needs to be entered. Under submenu „Edit Profile“ enter a profile number. Six profiles may be stored (nos. 0 to 5). Examples: Profile No. 1 Then programme the desired values for each section. Use the keypad to set section number, target temperature Step and time period. Set each entry with enter . Setpoint When the program is running, only sections having complete information for target temperature and time period are considered.
Menu functions Delete A flashing segment indicates that the respective profile number needs to be entered in which one or more consecutive sections are to be deleted. In lines 2 and 3 of the DIALOG DISPLAY (LCD) enter the numbers of the sections to be deleted. Press enter delete . no / yes to select the parameter „yes“ and Press the P-key press enter . Line 4 indicates the deletion. Example: Delete section 8 to section 34 in profile 3. to return to the previous menu level.
8.5. Analog inputs/outputs This submenu enables setting of the input and output values for the programmer input and the temperature recorder outputs of socket REG+E-PROG (21). Press enter to select the inputs/outputs submenu. Use the up/down cursor keys to select the desired option and press enter to open. Chan.1 voltage output for recorder (V) Chan.2 voltage output for recorder (V) Chan.
Menu functions 0V 10 °C 210 °C 200 K 197 °C 202 °C 5 K 0 mA 4 mA Examples: lowest temperature value: 10 °C highest temperature value 210 °C Fig. shows 200 C scaled to paper width rise: 50 mV/°C lowest temperature value: 197 °C highest temperature value: 202 °C Fig. shows 5 C scaled to paper width rise: 2000 mV/°C 20 mA EPROG - Input This input is necessary when the nominal value is to be determined and set by an external programmer.
Example: Setting a temperature of 50 C on the external programmer! The value adjusted and set on the external programmer is displayed in line 4 of the DIALOG-DISPLAY (LCD) for control purposes (Example: ExtSet: 50.0 C). After returning the LCD display to standard display by pressing escape („Setpoint“ - see page 26) this value is displayed in line 1 (Example: EPROG 50.00 C). This EPROG input enables the use of different voltage and current values as program parameters.
Menu functions 8.6. Limits When operating the programmable controller under external control, band limiting is active. The preset value determines the maximum temperature difference between the internal bath and the external load. This adjustment possibility prevents sensitive equipment and temperature devices from damage. Heating and cooling power of the programmable controller are adjustable. 100 % corresponds to the values in the technical specifications of the equipment. .
8.8. Sensors ATC - Absolute Temperature Calibration Select the submenu „Temp.Sensor“ with enter . Select the desired option with the up/down cursor keys .A flashing digit indicates that a value needs to be entered i.e. set. ATC Int.: used during the configuration of a Pt100 sensor attached on the socket labeled “INT”. ATC Ext.: used during the configuration of a Pt100 sensor attached on the socket labeled “EXT”. Setpoint range for internal or external calibration: ±9.99 °C.
Troubleshooting guide / Error messages 9. Troubleshooting guide / Error messages Whenever the microprocessor electronics registers a failure, a complete shutdown of the heating device is performed. + The alarm light " " illuminates and a continuous signal tone sounds. Cable of the working temperature sensor interrupted or shortcircuited. Other errors Error in A/D converter. Safety sensor defect. The safety temperature value lies below the working temperature setpoint.
10. Electrical connections Notice: Use shielded cables only. The shield of the connecting cable is electrically connected to the plug housing. 5 1 9 6 SERIAL RS232/RS485 serial interface (30) This port can be used to connect a computer with an RS232 or RS485 cable for remote control of the programmable controller.
Electrical connections Programmer input / temperature recorder output (31) 3 4 2 Analog inputs / outputs see page 35 Pin 5 1 6 REG+E-PROG Signal 1 Voltage output Channel 1 0 ... 10 V 2 Voltage output Channel 2 0 ...
STAND-BY input (33) (for external emergency switch-off) AK Pin assignment: Pin 1 2 3 Use shielded cables only. 2 Signal not connected 5 V / DC 0V 3 1 Activate the stand-by input: STAND-BY Under menu item Stand-by, set the parameter to „yes“ (see page 27). Connect an external contact 'AK' (e.g. for emergency switch-off) or an alarm contact of the superordinated system.
Remote control Control connector (35) The connector may be used with solenoid valves. Line voltage: 230 V / max. 1.25 A 115 V / max. 1.25 A 11. Remote control 11.1. Setup for remote control Select the „Configuration“ submenu and select the option „Setpoint“ to define the interface (see page 26). SERIAL The interface parameters are set by selecting the submenu „Interface“ on the programmable controller. Normally, this is a one-time-only adjustment. (Selecting and setting menu items, see page 38.
11.2. Communication with a PC or a superordinated data system Suitable terminal programs for communicating with a PC are: MS-Windows . - TERMINAL.EXE (included with MS-Windows). If the programmable controller is put into remote control mode via the configuration level, the display will read "r OFF" = REMOTE STOP. The programmable controller is now operated via the computer. In general, the computer (master) sends commands to the programmable controller (slave).
Remote control 11.3. List of commands When the RS485 interface is used, the instrument address stands in front of each command (Axxx_). in-commands: Asking for parameters or temperature values to be displayed. Command Parameter Response of programmable controller version none Number of software version (V X.xx) status none Status message, error message (see page 49) in_pv_00 none Actual bath temperature. in_pv_01 none Heating power being used (%).
Command Parameter Response of programmable controller in_mode_04 none Internal/external temperature control: 0 = Temperature control with Pt100 sensor „INT“. 1 = Temperature control with Pt100 sensor „EXT“. in_mode_05 none Circulator in Stop/Start condition: 0 = Stop 1 = Start in_par_01 none Time constant of the external bath. in_par_02 none Internal slope. in_par_03 none Time constant of the internal bath. in_par_04 none Band limiting (max.
Remote control Command Parameter Response of circulator out_mode_02 2 Continual identification of controlled system whenever a new setpoint is to be reached. out_mode_04 0 Temperature control with Pt100 sensor „INT“. out_mode_04 1 Temperature control with Pt100 sensor „EXT“. out_mode_05 0 Stop the programmable controller = r OFF. out_mode_05 1 Start the programmable controller. out_sp_00 xxx.x Set working temperature "T1". out_sp_01 xxx.x Set working temperature "T2". out_sp_03 xxx.
11.4. Status messages / error messages The programmable controller sends data (including error messages) only when the computer sends a query. Status messages Description 00 MANUAL STOP Programmable controller in "OFF" state. 01 MANUAL START Programmable controller in keypad control mode. Programmable controller in "r OFF" state. 02 REMOTE STOP 03 REMOTE START Programmable controller in remote control mode.
Cleaning / repairing the unit 12. Cleaning / repairing the unit Caution: Improper maintenance or repair can result in electric shock or damage to the unit. Repairs and any other work are to be carried out only by qualified service personnel authorized by JULABO. Always turn off the unit and disconnect the mains cable from the power source before performing any service or maintenance procedures, or before moving the unit. Prevent humidity from entering into the unit.
