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Julabo Presto Series Operating Manual Download Page 27

USER INTERFACE 

2.13.2018

 

 

27 

 

Optimization tips for PID control parameters 

 

The progression of the control object's temperature over time can 

indicate improperly adjusted control parameters. 

 

 

Optimal 

 

  

 

Improper adjustment may lead to the following heat-up curves: 

 

Xp too small 

 

 

 

Tv/Tn too small 

 

 

 

Xp too large or Tv too large 

 

 

Tv/Tn too large or Xp too large 

 
 

 

 

Summary of Contents for Presto Series

Page 1: ...Tuesday February 13 2018 13 32 00 Original Operating Manual User Interface 1 951 3041 V10 02 18 JULABO GmbH 77960 Seelbach Germany Phone 49 0 7823 51 0 Fax 49 0 7823 24 91 info de julabo com www julab...

Page 2: ...Table of Contents 2 2 13 2018 Printed in Germany Changes without prior notification reserved Important keep original operating manual for future use...

Page 3: ...Language menu 18 4 2 Autostart menu 19 4 3 Units menu 19 4 4 Menu Customize Home display 20 4 5 Date time menu 21 4 6 Colors menu 21 4 7 Keypad tones menu 22 4 8 Info menu 22 4 9 Max current consumpti...

Page 4: ...r pressure warning limit 49 9 2 4 Upper and lower pressure warning limit 50 9 3 Flow limits 50 9 3 1 Min and max flow setpoint 50 9 3 2 Upper and lower flow warning limit 51 10 Connect unit menu 52 10...

Page 5: ...s reply to sent commands 101 14 Communication via Modbus TCP IP 102 14 1 Datatypes 102 14 1 1 Used Datatypes 102 14 1 2 Data Encoding 102 14 2 Error Handling 102 14 3 Holding Registers 103 14 3 1 Func...

Page 6: ...mains voltage and mains frequency with the specifications on the type label Connect the mains plug to a protected earth PE power supply socket 1 2 Switching the unit on selecting language Refer to Set...

Page 7: ...5 Current power X heating X cooling 6 Selected temperature control internal external 7 Actual liquid temperature 8 Selected max pressure and actual pressure 9 Selected high temperature cut off page 4...

Page 8: ...in the normal display s chart Settings menu page 18 Chart shows the progression of the setpoint and actual temperature Displays during errors ALARM red WARNING yellow Help is always accessible through...

Page 9: ...es a pathway for overcoming the alarm Press button for help text Follow the instructions in the help text The unit is now ready to continue operation The unit switches to Standby Heater refrigeration...

Page 10: ...ntion symbol will remain It will draw attention to events that occurred during absence of the operating personnel The events are stored in a list of errors Warnings are displayed as a ticker in the st...

Page 11: ...9 digits keypad Decimal point button Minus plus button Backspace key Exit window without changes Input confirm entry 2 2 Start Stop Press Start Stop button The start up phase can last up to 30 second...

Page 12: ...Home return to normal display Retrieve help menu Press and then press the desired entry in the menu Indicates available submenu Digits keypad Keys 0 to 9 digits keypad Exit window without changes Mov...

Page 13: ...o manage access to the unit He can approve differing rights for two groups of users Access is always password protected A six digit password was set at the factory so the administrator can gain initia...

Page 14: ...values menu Press the key released blocked Confirm setting with If none of the user groups are logged in the released functions and menus will be accessible by all users Buttons in the Normal view and...

Page 15: ...rmation Confirm setting with Example Basic users Example 4 digit password for Basic users Press the key Use the check box to grant or deny access rights to user groups Confirm setting with Basic users...

Page 16: ...zed service person can delete the stored password and reset it back to the factory setting 3 2 2 User Groups Managing Access to the Unit Users can sign on with the password that has been assigned to t...

Page 17: ...unit will automatically switch to the normal display Press to enter password If someone attempts to use a locked unit a window will open to notify the user that the unit is locked Example Access to t...

Page 18: ...in the main menu Select menu here The buttons will display the current settings or indicate availability of a submenu Example Call up the Units Help menu Press the button and then press the Units but...

Page 19: ...s indicated by OFF on the TFT Display A complete shutdown of the main functional elements such as heater and circulation pump is effected simultaneously Using the AUTOSTART function is only possible w...

Page 20: ...alues Choose value and automatic return to Customize Home display Or push and leave the display without changes Active key light green or The sequence and choice of the values in the orange field can...

Page 21: ...each are available for Format and Separator 4 6 Colors menu Select colors You may select the colors used in the normal display s chart Use to change the settings in the selected submenu Red Green exa...

Page 22: ...t Info Information on module configuratioin Examples 4 9 Max current consumption menu The buttons will display the current setting Enter values with digits keypad The maximum current consumption of th...

Page 23: ...oller menu Select menu The buttons will display the current settings or indicate availability of a submenu Select desired control type temperature control units let you choose between internal inside...

Page 24: ...cess at each setpoint jump Select this option only if the controlled system changes continuously 5 1 2 Bandlimit Selftune During self tuning it is important to prevent the speed of the temperature cha...

Page 25: ...ternal 0 1 99 9 K Proportional range Xp The proportional range is the temperature range below the setpoint in which the heating capacity is controlled from 100 to 0 Setting range internal external 0 1...

Page 26: ...temperature sequence will largely follow this ramp Aperiodic Temperature will increase with time offset no overshoots Both settings will achieve adequate temperature stability after approximately the...

Page 27: ...The progression of the control object s temperature over time can indicate improperly adjusted control parameters Optimal Improper adjustment may lead to the following heat up curves Xp too small Tv T...

Page 28: ...d max internal temp Maximum and minimum setpoint in internal bath The max internal temp and min internal temp limits apply only when using the external operating mode Max internal temp and min interna...

Page 29: ...e temperature difference between the internal bath and the external system during the heat up or cool down phase respectively During the heat up phase this difference value is always added to the curr...

Page 30: ...ssure limits Pressure limits refer to page 48 Set your value here Type of pump control Pump control can be realized in different ways 5 2 1 1 Type Stage control Select Change presetting in the respect...

Page 31: ...Example 0 5 Setpoint limits refer to page 48 The setting ranges depend on the performance category of the temperature control system Example see display of unit Settings in the Adjust safety menu will...

Page 32: ...actively controlled The setting range depend on the performance category of the temperature control system Example Setting range see display of unit Example 12 00 l min Refer to the operating manual...

Page 33: ...USER INTERFACE 2 13 2018 33 5 2 3 Adjust control performance menu Select For and each of parameter Xp Proportional range and Tn Reset time can be set...

Page 34: ...a temperature ramp 1 Attention If the time specification is too short there will not be enough time to reach the setpoint The programmer contains an easy way to handle this situation If a step time of...

Page 35: ...ected step Change setpoint duration Add Adds a new step to the profile at the end of the list Delete Delete the currently selected step Insert Adds a step to the profile in front of the currently sele...

Page 36: ...35 00 C 00 10 00 35 00 C 02 00 00 Examples Standard Temperature setpoint C F and duration hh mm ss Set setpoint and gradient and 60 00 C 2 5 C min Examples Gradient Temperature C F and Gradient C min...

Page 37: ...lect step Press Set new values Edit the currently selected step Set new values 6 1 3 Delete Use to select step Press Delete the currently selected step 6 1 4 Insert Use to select step Press Set new va...

Page 38: ...he current settings End of profile Status at the end of the profile see page 40 for description Repeats A profile can be repeated up to 99 times Start time Start immediately with or define start time...

Page 39: ...r starting The following values will be shown at the bottom left of the normal display The computed setpoint The current step s remaining time Current step remaining number of runs Time remaining in p...

Page 40: ...gram PG setpoint At the end of the program the unit will continue to run with the final step s setpoint Press to end or start a new program Start setpoint At the end of the program the unit will conti...

Page 41: ...2 13 2018 41 Select days and Select profile and Set start time and Set the number of times the profile will repeat and Set stop time and Set status at end of profile and End of profile See page 40 fo...

Page 42: ...ers in your quality management system Select in the main menu Transfer to a computer to evaluate the data The menu recording data allows documentation of following important settings of the unit Date...

Page 43: ...e Storage button If both interfaces are occupied the user can choose between them Select the existing txt file and The file will be overwritten or Create a new file Select file name and e g test_1 Sta...

Page 44: ...e most recent 30 minutes are recorded This data can be exported when servicing the unit To receive rapid and competent assistance e mail the file to our service department at service julabo com Please...

Page 45: ...USER INTERFACE 2 13 2018 45 8 Service menu Select in the main menu This menu is password protected It is accessible only by authorized persons...

Page 46: ...value Minimum and maximum setpoint Limits the selectable temperature range The selected working temperature values must be between the limit values defined here Example of a message after attempting...

Page 47: ...ure gradient per minute during heating up cooling down When the gradient limiter is activated a setpoint step is executed as a gradient with the values selected here This feature is valuable e g to sa...

Page 48: ...hy of pressure values A Peak Pressure Limit B Pressure limit C Upper warning limit D Actual pressure in temperature system E Lower warning limit 9 2 1 Permissible Pumpstage Select and choose a stage T...

Page 49: ...tings Choose button and set value Warning Ticker in the status line If the pressure setpoint is too close to the warning limit the warning will appear continuously and fill the list of errors Touch th...

Page 50: ...it Exceeding this pressure for more than 5 seconds results in an alarm cut off and an error message Error 302 Achieving the Limit Pressure Peak results in an alarm cut off and an error message Error 3...

Page 51: ...button and set value A Lower warning limit and a Upper warning limit can be set for monitoring the flow rate l min in the system If a warning limit is exceeded or undercut a signal will sound and a w...

Page 52: ...0 1 Remote control menu Switching remote control on and off The unit can be controlled remotely through the digital interfaces Use an interface cable to connect the unit to a PC Choose between Off nor...

Page 53: ...screen or via the integrated programmer factory setting Pt100 Setpoint setting via the analog socket EXT Pt100 using an external temperature sensor or an appropriate voltage current source EProg Can o...

Page 54: ...ure The unit must be in Start mode in order to input variables in the Digital and EProg positions Selecting how variables are inputted Choose between inputting variables via Controller or Digital or E...

Page 55: ...aud Hardware handshake 10 4 2 Watchdog Watchdog function This temperature system provides a watchdog function for monitoring the digital interface RS232 USB Ethernet with the temperature system being...

Page 56: ...tal to define a variable 4th The interface command out_sp_06 sets a watchdog setpoint The watchdog function is activated as soon as a valid working temperature setpoint or a valid variable is received...

Page 57: ...emperature control If the warning symbol is touched during setting of the variable the most recently received variable will be re used If another plausible variable is sent after activation of the Wat...

Page 58: ...eceived valid interface command resets the watchdog Setpoint command Only the Setpoint command OUT_SP_00 resets the watchdog Create Warning Signal Here it can be set whether a warning should be shown...

Page 59: ...ur network contains a DHCP server then you can use this server to configure the s network settings If you do not have a DHCP server in your network or if you wish to connect the directly to a PC you w...

Page 60: ...her For example a subnet mask of 255 240 255 0 is not permitted Default Gateway Example 10 3 15 254 The default gateway serves as the communications interface between your own network and other networ...

Page 61: ...reen Remote control port The remote control port provides communication between the control system and the using the same commands as those used for communication through the RS232 interface for examp...

Page 62: ...s will appear in the s menu Obtain IP via DHCP false You can also assign a fixed IP address to the To do this set the item Obtain IP via DHCP to false and manually enter into the s Ethernet menu the I...

Page 63: ...0 Explanation The subnet mask 255 255 240 0 indicates that the first three parts of the IP address define the network The IP addresses of the two devices differ only in the final part of the IP addre...

Page 64: ...o use to connect to the to the PC To do this right click on the network connection and select Properties Under This connection uses the following items click on Internet protocol TCP IP and click on P...

Page 65: ...apacity max 30 W 25 VA with turn on voltage max 30 VDC max 25 VAC with switching current max 1 A Socket on the front Alarm output Output for external alarm signal This contact is a potential free chan...

Page 66: ...lter time is set to 1 second as default The filter time may be increased 0 1000 s to display the value with greater stability Note This will increase the reaction time if the system is controlled by t...

Page 67: ...nal with Pt100 8981023 M R adapter M38x1 5 external with Pt100 10 5 3 Bypass Control with CAN Option and JULABO Pressure Flow Sensor Bypass control is required if small mass flow rates of the bath flu...

Page 68: ...do this The activated bypass control can be recognized on the red icon at the JULABO lettering With this control the pump is automatically adjusted to stage based control The stages can be freely sel...

Page 69: ...d flow sensor The filter time can be adjusted by the user Next the bypass control can be activated in the Determine Thermodynamics menu To do this Enter the requested flow rate 10 5 5 EXT Pt100 2 acce...

Page 70: ...voltage but does not receive any information CAN Messages Green LED is not illuminated The unit is turned off or the module is damaged or it has no power supply Green LED blinks Irregular blinking in...

Page 71: ...to Active 2 Connect an external contact AK e g for external switch off or an alarm contact of the superordinated system If the connection between pin 2 and pin 3 is interrupted by opening the contact...

Page 72: ...external programmer input 0 10 V 0 20 mA 5 Chan 3 current output 4 20 mA 0 20 mA 6 Gnd for programmer 0 V Outputs of the connector Description on page 74 voltage output Push value First define output...

Page 73: ...value First define output value for channel 3 Confirm with Push current range Then define current range for channel 3 Confirm with Define scale Set value for 4 mA and Set value for 20 mA and Assign t...

Page 74: ...Sensor Pressure Flow 1 First define the desired output value for channels 1 to 3 Channel 1 and 2 output for temperature C power pressure bar psi flow through l m Assign the lowest value to be emitted...

Page 75: ...urce or programmer to the REG E PROG socket of the unit Select input variable value Step 1 see below Setpoint in C or F Power in Selecting the signal Step 1 see below Voltage voltage input Current cur...

Page 76: ...chnical data for working temperature range Select Push EProg The current settings are displayed 0 0 V equals 50 0 C 10 0 V equals 250 C Push edit Step 1 is displayed Push value and select Push signal...

Page 77: ...e 20 0 mA Set upper value and Example 400 C You can check the result using a control setting Example Set 10 0 mA and the unit will calculate 150 0 C Continue automatically Standard display Under the t...

Page 78: ...Wait approximately 30 seconds 2 Assign an upper temperature threshold value to this adjusted voltage current value by pressing the appropriate keys on the digits keypad of the instrument Example A 200...

Page 79: ...st the unit will be in the OFF status and emit an audible signal To mute the signal press the alarm notice s red box Error 1 Low level alarm Proper filling procedure Press The Fill unit box will appea...

Page 80: ...o much bath fluid or if the bath fluid extends due to heating during operation a high level warning is activated Ticker The early warning system for high level reports a critical fluid level Please dr...

Page 81: ...suitable container for catching the liquid under the unit After the mechanical preparations the unit is drained menu driven via the user interface The ticker in the display reports the start of the au...

Page 82: ...r in the status line Mute the audible signal by pressing the yellow symbol Mute the audible signal by pressing the red box In case of a complete exchange of the bath fluid the expansion tank must also...

Page 83: ...e external sensor calibration During calibration in the external bath a reference temperature sensor is used to determine the bath temperature in a stabilized condition This value is then entered unde...

Page 84: ...libration Select Number of points Example 3 point calibration This setting determines the number of the following steps Follow the instructions on the screen You can perform a 1 point 2 point or 3 poi...

Page 85: ...oint Wait Set Calibration value After the final value has been entered all calibration points three in this case will be displayed Values are examples only Set Status active after the calibration In t...

Page 86: ...libration curve is moved entirely towards the original curve of the sensor In case if a 3 point calibration a bent curve may result Thus the accuracy of the temperature indication can be improved in a...

Page 87: ...an be changed here 11 6 Save load parameters Once the optimum settings of the parameters of an application have been determined this menu will enable you to save these on an external data carrier It i...

Page 88: ...new file Select file name and Example A40_TD Storage parameters The unit data are saved on an external data carrier Load parameters Please insert data carrier e g USB stick Select data carrier Select...

Page 89: ...p Please insert data carrier e g USB stick Select data carrier 1 2 Double click to select and open the configuration file 3 Select desired file and start the configuration with double click or OK The...

Page 90: ...le is based primarily on the unit s mains voltage or mains frequency This is defined by JULABO since each unit has only one configuration file If the language is switched during examination of the con...

Page 91: ...TFT display module with USB stick for example Removal not required As a result updates are completed quickly and at low cost Load the zip file on an empty data carrier and extract Insert the data car...

Page 92: ...causes as well as repair measures are listed ALARM display Error messages are displayed in a red box Example Error 14 Touch the red box to mute the alarm Press button for help text The module and the...

Page 93: ...NG Yellow Date and time when the error appeared are stored and displayed If possible this data will also be stored during removal of the error Example code Press the button for help text Press to dele...

Page 94: ...to page 52 The mostly one time adjustment of the interface parameters is carried out at the unit in its Digital interfaces menu refer to page 55 Factory settings RS232 BAUDRATE 4800 Baud PARITY even p...

Page 95: ...the interface in case of a power interruption AUTOSTART is not possible A transfer sequence consists of command space Hex 20 parameter decimal separation with a period end of file Hex 0D The response...

Page 96: ...l Pt100 sensor in_pv_03 none Temperature value registered by the safety sensor TANK in_pv_04 none Over temperature safety device setting in_pv_05 none Pump pressure in bar in_pv_06 none Pump pressure...

Page 97: ...lower in_sp_25 none Maximum temperature gradient heating in_sp_26 none Maximum temperature gradient cooling In_hil_00 none Max cooling power In_hil_01 none Max heating power in_mode_01 none Setpoint...

Page 98: ...ar_07 none Tn control parameter of the internal controller in_par_08 none Tv control parameter of the internal controller in_par_09 none Xp control parameter of the cascade controller in_par_10 none P...

Page 99: ...l programmer input to current Current 0 mA 20 mA out_mode_04 0 Temperature control of internal bath out_mode_04 1 External control with Pt100 sensor out_mode_05 0 Stop the unit R OFF out_mode_05 1 Sta...

Page 100: ...arning limit upper out _sp_19 xxx xx Set flow rate warning limit lower out_sp_25 xxx xx adjust maximum temperature gradient heating 2 deactivate maximum temperature gradient heating 2 out_sp_26 xxx xx...

Page 101: ...ntrol mode 02 REMOTE STOP in Remote OFF state 03 REMOTE START in remote control mode 13 4 1 Status messages as reply to sent commands Messages Description 08 INVALID COMMAND The unit did not recognize...

Page 102: ...bus system uses the same format so that all data is decoded correctly Some masters use the so called INTEL format LOW WORD first HIGH WORD second Therefore you can change the data encoding between INT...

Page 103: ...ocol Address Datatype Description Adjustable range 0 ushort Start Stop the unit 0 Unit is in OFF Mode 1 Unit is started 1 ushort Acting variable input 0 Controller 1 Digital 2 EPROG 2 3 float Working...

Page 104: ...tings 50 ushort control type pressure control stage control 0 Stage control 1 Pressure control 2 Flow control 3 Flow control Bypass 51 ushort Pressure control of internal external pressure sensor 0 Pr...

Page 105: ...sure lower warning Pressure limit 84 85 float Pressure limit upper warning limit Pressure peak limit 86 87 float Pressure peak limit Pressure limit sensor measurement range Units 90 ushort Temperature...

Page 106: ...mcode Error messages see page 108 7 short Unit Warncode Error messages see page 108 Act values 30011 30012 10 11 float Current bath temperature 30013 30014 12 13 float Temperature value registered by...

Page 107: ...the external pressure sensor 30030 30031 29 30 float Pressure2 not on 30032 30033 31 32 float Cooling water flow rate not on 30038 20039 37 38 float External Temperature 2 30051 30052 50 51 float Si...

Page 108: ...tables are colored in correspondance with the error messages on the TFT display ALARM display Error messages are displayed in a red box Press for help text WARNING display Warnings are displayed as a...

Page 109: ...ure cut off setting and increase the setting if necessary WARNING When adjusting the safety temperature please note the operating limits combustion point of the temperature control liquid used Ask the...

Page 110: ...uit If this error continues to occur please contact JULABO Service E105 The line to an internal temperature sensor is short circuited If this error continues to occur please contact JULABO Service E10...

Page 111: ...this error continues to occur please contact JULABO Service E205 Error in current measurement for compressor stage 1 If this error continues to occur please contact JULABO Service E206 Error in curre...

Page 112: ...d E414 Evaporation pressure sensor is defective Line break to evaporation pressure sensor E415 Reserve pressure sensor is defective Reserve pressure sensor is short circuited E416 Reserve pressure sen...

Page 113: ...compressor defective If this error continues to occur please contact JULABO Service E432 Error in cooling system If the problem persists please contact JULABO service E433 Error in cooling system If t...

Page 114: ...valid setpoint calculation in internal program sensor Please restart the profile E508 Invalid setpoint was received on the internal bus Please set a valid setpoint E509 Invalid setpoint should be send...

Page 115: ...The temperature of the heat exchanger or the internal reservoir is near the configured safety temperature Check the setting of the high temperature cut off E1109 Probe differential limit activated Ch...

Page 116: ...this error continues to occur please contact JULABO Service E1217 Error in main power frequency measurement If this error continues to occur please contact JULABO Service E1218 Error in main power fr...

Page 117: ...he warning limit upwards if reasonable from a safety standpoint 1503 The pressure in the temperature control circuit is lower than the configured warning limit 1 Correct the pressure setpoint upwards...

Page 118: ...let Please refer to the operating manual of the chapter Electrical connections on the front side of the device 16 2 Adjust the Network settings on your PC Note You need to have admin rights Click on t...

Page 119: ...This should look like the one below In the properties dialog scroll down the list under This connection uses the following items select Internet Protocol Version 4 TCP IPv4 and click the Properties bu...

Page 120: ...ur PC The first 3 IP address parts must be equal to the first 3 parts entered at the PC The last IP address number must be different to the one entered at the PC Note 0 and 255 as values for the last...

Page 121: ...the display on your PC You can operate the either on the PC as well as on the user interface Note CerHost does not store any adjustments Once the program is closed and started again you have to connec...

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