VT26 Series User Manual - Vertex Temperature Controllers Home
Contents
1. Incorrect input sensor selection Check correct input sensor selection Sensor break error Replace sensor Sensor not connected Check the sensor is connected correctly Unit must be repaired or replaced A D converter damage Check for outside source of damage such as transient voltage spikes Keypads are locked Set LoLE to a proper value Keypads defective Replace keypads valuel Improper setting of Pb Ti Tdl Start AT process to set Pb Ti Td automatically Refer to 4 1 and CT Set Pb Ti Td manually Refer to 4 2 No heater power or fuse open N l Check output wiring and fuse No heat or output Output device defective or Replace output device incorrect output used All LED s and display No power to controller Check power lines connection not light SMPS failure Replace SMPS 5 Electromagnetic Interferencel Suppress arcing contacts in system to eliminate high voltage rocess alue EMI or Radio Frequency spike sources Separate sensor and controller wiring from dirty changed abnormally Interference RFI power lines Ground heaters Entered Fail to enter data to EEPROM Replace EEPROM data lost 9 SPECIFICATIONS INPUT Thermocouple J K T E B R S N C TYPE RTD DIN PT 100 JIS PT 100 Linear 4 20mA 0 50mV 1 5V 0 10V Range User configurable Accuracy 1 C for thermocouple 0 2 C for RID 43mA for Linear Cold Junction Compensation 0 1 C C ambient Sampling Time 02. 5 j LE gt FL z 3 3 Mains Power Input The controller can operate on any voltage between 90 264 VDC or VAC 50 60 Hz Power should be protected by a 2 amp fuse or 1 amp circuit breaker As an optional extra you can have 24 V AC or DC Will work between 18 V and 36 V Please be sure to order your controller with this option should it be required Note that the mains power terminals are T1 T2 on the VT4826 and on T19 T20 for the VT9626 and VT4926 3 4 Sensor input This controller has selectable input making it possible to select any thermocouple or PT100 in the setup parameters from the face buttons Do not run sensor cables adjacent to power carrying conductors as signal interference can take place and distort the input The correct type of thermocouple extension lead wire or compensating cable must be used when using thermocouples Ensure that the polarities of the thermocouple wires are correctly connected The terminals used for the probe thermocouple or PT100 are VT4826 1T7 T8 T9 T C on T7 T8 and for the VT9626 and VT4926 T8 T9 T10 T C on T9 T10 3 5 Controller outputs The controller can have any one of the following output types Be sure to check which one you require when ordering Available outputs are e Relay output 10A 240VAC This functions as a simple potential free switch VT4826 use T11 1712 VI4926 and VT9626 use 117 118 e Solid State Relay output 24Vdc pulsed This supplies a 24 Vdc signal to sw
3. Once the controller has stabilized at that setpoint and is working more or less ok take the setpoint up to the required temperature and let it re stabilized there If you are then not happy with the control results you can make the controller set tune the PID parameters itself Should you wish to do this instruct the controller to do an auto tuning calibration of the parameters Make sure that the value of Pb is not zero Pb 0 forces on off control Setthe HE parameter to YES P HE SO will force the tuning process at 10 below the required setpoint and is not generally used The rightmost decimal AT on the PV display will blink during tuning process See explanation of difference between YES and HE 5 2 below After two oscillatory cycles of on off control action around the setpoint SV the controller will use the measurements learned to set the PID parameters The controller performs PID control with these learned PID values to verify the results Finally the PID values will be entered into the memory The controller will now start controlling using fuzzy enhanced PID control To abort an auto tune process Simply set the HE parameter to no If initially the controller is oscillating badly you may need to perform this procedure a second time to get the best results DO NOT CHANGE ANYTHING AT ALL IN THE PROCESS OR CONTROLLER WHILE DOING AN AUTO TUNING PROCESS Do not change anything durin
4. 25 sec Normal Mode Rejection 60 dB Common Mode Rejection 120 dB CONTROL FUNCTION Proportional Band 0 0 300 0 Integral Time 0 3600 sec Derivative Time 0 900 sec VT26 MANUAL QIS 2 V6 18 Hysteresis 0 0 200 0 0 2000 Cycle Time O 100 sec Control Action Direct for cooling or Reverse for heating OUTPUT Relay Contact Output10A 240 VAC Resistive Load Pulsed Voltage Output 0 or 24 VDC Resistive 250 ohms Min Current Output 4 20mA Resistive 600 ohms Max Continuous Voltage Output 0 50mA 1 5V 0 10V Resistive 600 ohms Min GENERAL Rated Voltage 90 264 VAC 50 60 Hz or VDC Consumption Less than 5 VA Memory Backup EEPROM and non volatile memory Approx 10 years Ambient TemperatureO 50 C Ambient Humidity 0 90 RH Non condensing VT26 MANUAL QIS 2 V6 9
5. Output 1 control action m EVY Reverse action Used for heating control d r Direct action Used for cooling control Bole Low limit of span or range Set the low limit lower than the lowest expected SV and PV display Normally set at 0 deg C If you make this setting above 0 deg C when the controller PV drops below this setting it will be out of range and cease to operate ae High limit of span or range Note If you have a PV retransmission output the Hilt and Lolt sets the range that will equal your retransmission signal le 0 1000 4 20 mA or whatever ELE Software filters EPUVECE HI Alarm function selection See section 5 1 for detail Had Ead Alarm mode selection See section 5 2 for detail Hddc Address of the controller when communicating with a master device using RS485 comms Communication baud rate 2 4k 2400 bps 4 8k 4800 bps 9 6k 9600 bps 19 2k 19200 bps VT26 MANUAL QIS 2 V6 9 5 5 SCALING FOR LINEAR INPUT e Press the UP and DOWN keys simultaneously for 5 seconds to access LnLo Daier f SET Adjust LnLo setting to correspond the low scale and after adjustment press LE Key once to access LnHi Parameter SET e Adjust LnHI setting to correspond the high scale and after adjustment press ss key once for normal operation 6 OPERATION 61 HOW TO CHANGE THE INPUT TYPE ser K Press the SET and SHIFT keys simultaneously for 5 seconds until the display rea
6. set in the out parameter below This value can be set anywhere between the LoLt HiLt values of the range QUE Output percentage value to which the output will be limited at startup until the temperature has reached the S SP setpoint above at which the output will revert to full PID regulation 53 PID LEVEL L FEI Proportional band value Setting range from 0 0 to 300 0 of controllers Span set to 0 0 for on off control This value is automatically calculated by activating the auto tune function It can also be set manually by the user if so desired Ti Integral reset time This value is automatically calculated by activating the auto tune function It can also be set manually by the user if so desired When PB 0 0 this parameter will be not available When Ti is set to zero make Pb amp td 0 for PD control L Ed Derivative rate time This value is automatically calculated by activating the auto tune function It can also be set manually by the user if so desired When PB 0 0 this parameter will be not available When td is set to zero Pb amp ti 0 for PI control L LEI Cycle time for the main control output Setting range is from 0 to 100 seconds Set to 1 for SSR output set to 0 for 4 20 mA analog output and set to 15 for relay or contactor LIPS Proportional band value for cooling control output when fitted Set 0 0 for ON OFF control LLE d Integral time for cooling control output When PB 0 0 this par
7. to several hours depending upon the process in question e MA status indicator When the manual control mode is selected The rightmost decimal on SV display will blink 42 KEY FUNCTION SET opr key Press once to access the next configurable parameter within the level you are in Press for 5 seconds to reset alarm timer if used N SHIFT key Shift digits to be adjusted by up down key d DOWN key Press to decrease the set point or parameter value VT26 MANUAL QIS 2 V6 5 A UP key Press to increase the set point or parameter value ser A Press the SET and UP keys once to return the normal operation ser lt LEVEL key Press the SET and SHIFT keys simultaneously for 5 seconds and then use the up and down keys to select the programming level required ie User Soft PID etc Now press the SET key to enter that particular level and access the first parameter AV Press the UP and DOWN keys simultaneously for 5 seconds to access LnLo and LnHi parameters These Display Engineering Unit for analog input setting values are used to set the display engineering units you require to correspond to the analog input being used Eg a4 20 input may represent 0 100 C or any other range you chose NOTE IT IS POSSIBLE TO REMOVE OR RE ARRANGE THE PARAMETERS DISPLAYED IN THE USER AND PID LEVELS IF YOU ARE AN INSTRUMENTATION ENGINEER AND HAVE AN INSTRUMENTATION SOLDERING IRON AND S
8. LINEAR INPUT cccccscsssssssssssssssssssssssssssssssssssssssssesssssssssssssssssssssssssssessssssssssssssessseesees 10 6 OPERA FTO wis sees iss ef ee ee ee de ee Dee GN Ee AO Ge dee ie Ge de Ge ed ee SE N ee 10 6 1 HOW TO CHANGE THE INPUT TYPE ese esse ese eene ee ee ee ee ee ee ee ee ee ee 10 6 2 TUNING YOUR VT26 CONTROLLER AUTO TUNING cccscccsssssscssssssssssssssssssssssssssessssssesssssssssseese 10 6 3 TUNING THE CONTROLLER MANUALLY c ccccscssssssssssssssssssssssssssssesssssssssssssssssssssesssessssssssssssssessses 12 6 4 MANUAL CONT OM ee es ie ee ee ee ee EE 13 65 ATA VE FONE DIG NS os eie ees N ede ee N 13 6 6 ALARM MODES ees ese ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee 14 6 7 HEAT COOL USING THE ALARM esse ee ee eene ees ee ee ee ee ee oe ee oe ee ee ee ee ee 14 6 8 REMOTE SETPOINT USER INFORMATION wssscssssssssssssssssssssssssssssssssssssssssssssssssssssssesssessssssessssssssesees 15 6 9 USING THE ALARM IN A RAMP AND SOAK FUNCTION esse eene sees ees ee ee ee ee ee 16 7 PROGRAMMING LEVEL PARAMETERS esse sesse esse esse esse ese esse ees ee esse ees ee ese ee ee esse ee ee ee 17 8 ERROR MESSAGES AND TROUBLESHOOTING 0 cccccssssccccscscccssscccsscccccsssccescsccess 18 9 ONS EE N OE E E EE ON 18 VT26 MANUAL OIS 2 V6 1 1 INTRODUCTION This manual contains information for the installation operation and tuning of your Vertex VT26 series FUZZY ENHANCED auto t
9. OLDER SUCKER PLEASE CONTACT US FOR DETAILS ON HOW TO DO THIS 9 CONFIGURATION AND PARAMETER SETTINGS All configurable parameters are user friendly and clearly structured in three levels To change level from one to the next please press Cana keys for at least 5 seconds to access level selection Use UP DOWN key to select programming level e Soft e Pid level P d e Option level GFE e Scaling for Linear Input 51 USER LEVEL The following parameters are listed in a default sequence However any unused parameter can be removed and the display sequence is configurable to simplify the operation L 27 Set point value required for control EZ ISP Alarm 1 set point value in C This will be a time set value while A1FU is set to T on or T off and the unit will be HH MM or MM SS depending on the choice of unit defined by the P tnE parameter Range 1999 9999 00 00 99 59 Alarm 2 set point value in C This will be a time set value while A2FU is set to T on or T off and the unit will be HH MM or MM SS depending on the choice of unit defined by the P tnE parameter Range 1999 9999 00 00 99 59 L HE Auto tune Used to set Pb ti td PID parameters automatically using the auto tuning process This procedure will also tune the cooling PID parameters as well if your controller has that option installed mo Auto tuning is disabled VT26 MANUAL QIS 2 V6 6 YES Most commonly used auto tuning procedure
10. The PV is compared with SV during auto tuning JE 5 2 Used when you do not wish the PV measured temperature to exceed the SV during auto tuning The process of auto tuning is done at 10 below the set value Prods Hand manual control Used to enable or disable the manual mode Care must be taken when using this function as the output is set manually by the operator and the controller will not make any automatic corrections should there be overshoot above the set value temperature MQ Disable the manual mode 4YES Enable the manual mode OLE LI Output percentage Indicating the output set either by hand in manual or by the controller when controlling normally L ZEF Auto tune Used to set Pb ti td PID parameters automatically using the auto tuning process This procedure will also tune the cooling PID parameters as well if your controller has that option installed s2 SOFT LEVEL Please note in order to unlock the soft level the lock parameter must be set to 0101 The ramp can be used separately from the Soft Start or in conjunction with as you please With the Ramp value set to 0 the ramp is disabled When a value has been set in C min each time a setpoint change is made the setpoint will ramp at the set rate from the original value to the new setpoint value This can be set between the range of 0 9999 C min 0 0 999 9 This is the temperature setpoint below which at startup the output will be limited to the value
11. VT26 SERIES FUZZY ENHANCED PID CONTROLLERS INSTRUCTION MANUAL VERSION 0 0 Table of Contents 1 MIN ODD EION sede ee ede N ie Ee Ge Pd Do ed N Ge EG ee ee EE OG Ee Re Ge Ee NG 2 2 ENA HURRY ER ET OG ER ON OO A 2 3 INSTALLATION FEE NE EE EE OR EN 3 3 1 PANELMOUNTING u cscccsssssssssssssssssssssssssssssssssssssssssssssssessssssssssessscsssssssssssssssssssssssssssssssesssessssssessssssssssssessssss 3 3 2 CONNECTION AND WIRING u cccccscscssscsssssssssscssssssssssessssssssssesssssssssssssssssssssssssssssessssssssssssssssessssssssssssssessse 3 4 FRONT PANEL DESCRIP TIO Nore sesse sesde sies Gede de Ge ede Ge Ge Ge ede Gee ede Ged de ede Gie Gede bedde 5 4 1 CONTROLLER FACE INDICATIONS cccccssssssssssssssssesssssssssssssssssssscssesssessessssssessssssesssssssssesssessessseesssssess 5 DISPLAY AND INDIENTOR sies Pn en eC ee ee 5 PV PROCESS VALUE DISPLAY cscssssssssssssssssssssssssssssssssssssssesssessssssesssessssssssssssssssssssssssssssssssesssssssessssssessss 5 SV SET VALUE DISPLAY eeuse sees eene ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee 5 Ed da FUNGTION EE EE EE EE ER EE EE EE EE 5 5 CONFIGURATION AND PARAMETER SETTINGS 2 ccsccscscccccccccccccccscccscccccsccees 6 5 1 OS Ee VB se ee ee oe ee ee 6 52 SOET LEVEL on oi GE EE nena a ee ee eee 7 56 PIBLEVEL ee ee en PET ee De ee ie 7 5 4 OPTION LEVEL ees ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee 8 5 5 SCALING FOR
12. al only control EFZOF Process value offset Setting range form 100 0 to 200 0 or 1000 to 2000 This parameter allows for manual compensation of any process off set that may exist between the measurement of the probe and the reading on the controller PV display Dole Parameter lock This security feature locks out selected levels or single parameters prohibiting tampering and inadvertent programming changes To change any Lock settings you must first make sure that gap G1 is soldered Table 3 1 Parameter lock selection USER PID OPTI levels are adjustable USER SOFT PID OPTI levels are adjustable All parameters in all levels are opened 1000 0000 1001 0001 1010 0010 1011 0011 1100 0100 but Output 2 1000 1111 l is opened 5 4 OPTION LEVEL oom USER and PID levels are adjustable Sensor input selection Table 3 2 Input and range VT26 MANUAL QIS 2 V6 8 TYPE DISPLAY RANGE ld ASeriosge SET Ieser fee ETA Se Bb foc te00e 82F 3272F_ R e soc i7soc SBF StBEr LIZ EJ Unit of measure selection OL Degrees C OF Degrees F Ent Engineering unit Only for linear input L_ FI Decimal point selection No decimal point Co O CJ t LI a 0 1 resolution 0 01 resolution Only for linear input OO O EI a Sel a a 0 001 resolution Only for linear input After reconfiguring the decimal point please reconfirm other parameter settings that may be effected LAE
13. ameter will be not available When set to zero Pb amp td 0 for PD control LLE Derivative time for cooling control output When Pb 0 0 this parameter will be not available When set to zero VT26 MANUAL OIS 2 V6 7 Pb amp ti 0 for PI control LELE Cycle time of second control output HAHA Hysteresis Dead Band for on off control on output 1 and output 2 Users can create a dead band around the setpoint from 0 0 to 200 0 deg C The temperature will continue to heat and rise above the setpoint by the HyS1 amount set then cool until it has dropped below the setpoint by the same amount before switching on again EP VE CHS Hysteresis for alarm 1 and alarm 2 The setting range is 0 0 to 200 0 and it works in the same way as for the main Hysteresis setting Lgh Dead band value This defines the dead band between the heating and cooling outputs when used and can be set from 100 0 to 100 0 deg C If you are using proportional or PID control even though you set a dead band you may get overlapping switching between the heating and cooling This is a result of the control algorithm action If you make both the heating and cooling Pb 0 however it will ensure that there is nothing on between the two REJE set point offset Setting range is from 100 0 to 100 0 or 1000 to 1000 This value will be added to SV to perform control It mainly used to eliminate offset error between the SV and PV that may be experienced during proportion
14. ay on while PV is A PV below SP A PV Deviation high alarm SP ALSP Deviation low alarm SP ALSP EE OFF EN Band high alarm AAA PV SP ALSP SP SP ALSP Band low alarm A AA PV SP ALSP SP SP ALSP 66 ALARM MODES 6 6 1 Special alarm features can be set using A Ind and Hond 6 6 2 nanE No special mode 6 6 3 5 04 Standby mode 6 6 4 When selected in any alarm function prevents an alarm on power up The alarm is enabled only when the process value reaches set point Also known as Startup inhibit and is useful for avoiding alarm trips during startup 6 6 5 L HEH Latch mode 6 6 6 When selected the alarm output and indicator latch as the alarm occurs The alarm output and indicator will be energized even if the alarm condition has been cleared unless the power is shut off 6 6 7 5E LH Standby and Latch mode 67 HEAT COOL USING THE ALARM 1 When it is required to have Heat and Cooling as for example on an extrusion barrel you can use the alarm setting as the cooling setpoint 2 The alarm based cooling will be on off and not proportional VT26 MANUAL OIS 2 V6 14 10 11 12 13 14 15 This in itself is not bad as if you are cooling using a fan or in other applications you may have compressor cooling you cannot use proportional control as switching a fan motor or compressor on and off rapidly will burn it out in any case In the case of liquid cooling solenoid on ext
15. do is install it and get the wiring right YOU MUST READ CONNECTIONS AND WIRING section 3 3 3 4 3 5 BELOW turn it on check that the thermocouple type it is correct during the self test it will display the input type make sure it is reading more or less the right temperature that the heating elements actually get hot when the C1 light is on and away you go No need for laboriously reading this manual and changing and setting all the parameters Just turn it on and when the system it is controlling has reached it s operating temperature do an auto tune as explained in the section Tuning your VERTEX VT26 series controller You can also however explore all the parameters and set and use it in any way you may wish If you are not sure please contact Vertex and ask we are always happy to help VT26 MANUAL QIS 2 V6 2 3 INSTALLATION 31 PANEL MOUNTING The panel cut out sizes are shown below Panel Cutout ee eo ai 60 72 eo as 920054540580 120 0 5 92 0 26 VT9630 26 VT4930 26 VT4826 VT4830 VT7226 O 90 250 VAC vT7230 3 MEI Alarm 2 0 24 voc 2 Yt ra EF Se rie BR dag Ei dees FE El Aa a Hila apace BEFORE WIRING PLEASE CHECK THE LABLE FOR CORRECT MODEL AND OPTIONS Connections Explained These are typical input connection drawing intended to explain the schematic symbols RTD Input looks like this Thermocouple input like this mA or mV looks like this A
16. ds Level in the top display Then use the up and down keys to select the programming level required ie User Soft PID etc In this case choose the Opti level Now press the SET key to enter that particular level and access the first parameter This should be the Type parameter Use the up and down key to select the input type you wish to have as listed in the table below TYPE DISPLAY 58 1832 58 2498 454 752 58 1832 32 3272 58 3182 58 3182 58 2372 58 3272 50 1000 50 1370 27 0 400 50 1000 O 1800 50 1750 50 1750 50 1300 50 1800 200 850 328 1652 200 600 328 1112 1999 9999 D LINEAR J K T E S N C PT JPT DISPLAY J 50 1000 so 1370 E 270 400 E 50 1000 6 o 1800 50 1750 5 so 1750 N 50 _ 1300 E 50 1800 PE 200 _ 850 Pt 200 _ 600 Now press the SET key a few times until you reach the parameter and leave this set at 0000 Press the SET key again and you will see the ELE Use the up and down to make this the nearest 100 s setting suitable ie a range of 0 200 or 0 400 or 0 600 etc etc Now Ser AN Press the SET and UP keys once to return the normal operation 62 TUNING YOUR VT26 CONTROLLER Auto Tuning Tuning is the process of setting the Proportional Integral and Derivative terms of the controllers main output VT26 MANUAL QIS 2 V6 10 to best suit your application and give the best possible control under y
17. g this procedure as it will result in erroneous settings that may not control well at all Just leave the system for a few minutes while it does its thing Also only do this at the full required temperature once the whole system has had a chance to warm up and work for a while Once it has finished the auto tune light will stop flashing and the controller will start to control using the new parameters Once this process is completed you should get good control It should really only be done once more when the system is in full operation i e under normal working conditions with the process in VT26 MANUAL OIS 2 V6 TA full swing if you are not happy with the control results 19 When doing this on a barrel of an extrusion machine or on a mould where there is more than one temperature being controlled in close proximity to another where they may interfere with each other always let them all stabilize and then choose the most stable zone and do that one first Only ever do one zone at a time let it finish and then do the next most stable zone next to the one you have already done The controller can also be set to ON OFF PI PD and P control mode Set Pb 0 for ON OFF control mode Set ti 0 for PD control mode Set td 0 fro PI control mode and ti td 0 fro P control mode The Hysteresis dead band Of ON OFF control can be set as follow ON OFF SP HYST A SP HYST SP When the second control output output 2 cooling is fitted
18. it will behave as shown below Bear in mind that when using Proportional or PID control there may be an overlap between the heating and cooling depending on the auto PID algorithm calculations This is perfectly normal You can make both heating and cooling proportional band 0 then it will ensure that between the two nothing is switched on Output Heating Cooling TEE EE EE PV Overlap Dead Band Band 63 TUNING THE CONTROLLER MANUALLY To ensure that all parameters are configured correctly Set Pb to zero Set H4Y5 to smallest Set the controller s set point SV to a value which closely approximates your application The controller will perform the on off control action So the process value will oscillate about the set point The following parameters should be noted 1 The peak to peak variation P in C F i e the difference between the highest value of the overshoot and the VT26 MANUAL QIS 2 V6 12 lowest value of the undershoot 2 The cycle time of the oscillation in seconds e The control setting should be then calculated as follows Pb Px100 Span ti T td 1 4 Note The span is the difference between the H L E high limit value and L oL E low limit value The PID parameters determined by the above procedures are just rough values If the control results are unsatisfactory The following rules may be used to further adjust the PID parameters Adjustment sequence Symptom Sol
19. itch SSR s requiring a DC 3 32 Vdc control signal VT4826 use T11 ve T12 ve VT4926 and VI9626 use T17 ve T18 ve e Milli amp output 4 20 mA Max load 600 ohms This supplies a 24Vdc driven 4 20 or 0 20 signal VT4826 use T11 ve 112 ve VT4926 and VT9626 use T17 ve 118 ve e 1 50mV 1 5V 0 10V also available as an option VT26 MANUAL OIS 2 V6 4 4 FRONT PANEL DESCRIPTION 41 Controller Face indications DISPLAY AND INDICATOR PV Process Value Display gt Displays the actual measurement of the input gt Displays the parameter index code when selected gt Displays the error message SV Set Value Display gt Displays the set value Required Setpoint ser lt 7 Al gt Displays the parameter data when selected VERTEX VT 26 Displays the output percentage value when selected e A1 status LED indicator Alarm 1 relay status LED This LED is lit in red when the alarm 1 relay is active e A2 status LED indicator Alarm 2 relay status LED This LED is lit in red when the alarm 2 relay is active e C1 status LED indicator Main output 1 status LED lluminates in green when the control output 1 is active e C2 status LED indicator Control output 2 status LED llluminates in green when the control output 2 is active e AT status indicator When the controller is auto tuning the rightmost lower decimal point in the PV display will blink Auto tuning may take from several minutes
20. l be the main setpoint the alarm 1 setpoint before the alarm cooling will switch on lt will now stay on until the temperature has dropped below the lower limit of the hysteresis band before the cooling will switch off This setting is set in degrees C Alarm Hysterisis Band Alarm Setp oit Pi Used for coolmg EE Ed er See This gap set by AlSp SY heating setpoint 68 REMOTE SETPOINT USER INFORMATION l If your controller has been supplied with a remote setpoint you will only be able to change the setpoint via the remote input signal VT26 MANUAL QIS 2 V6 LS You can however disable this input by following this procedure Access the Lol parameter in the PID level and change it to 1111 You will then be able to access the Enir level to be found above the PID and Option levels DO NOT CHANGE ANY OTHER PARAMETERS IN THE Enir LEVELAT ALL Access the kaal and change it from 5 2 to SP 1 Go back to the PID level and reset the Lat parameter to 0100 The range of the remote setpoint is defined by the Lolt and HiLt values to be found in the Opti CON DAM A WH level 9 Having disabled it once you will have to re calibrate it if you try to re activate the option This will require a signal generator and a soldering iron and solder sucker Contact your supplier for more information 69 USING THE ALARM IN A RAMP AND SOAK FUNCTION a You can wire the main output through the alarm 1 output and use the alarm in a
21. our specific circumstances Note this tuning will also tune the second cooling outout should your controller have this option f you are not happy with the stability of control and wish to have less over and undershoot around the setpoint it is advisable to do this procedure It is also advisable always do this on commissioning new installations The auto tune function is used to teach the controller the main characteristics of the process It learns by cycling the output on and off around the setpoint The results are measure and used to calculate optimum Pb ti td values which are automatically entered into nonvolatile memory The auto tune function is triggered manually and can be used during setup of the controller 10 11 12 13 14 Firstly install the controller and get it controlling using the factory settings As supplied Always set the setpoint at about half the eventual control temperature the first time you turn it on after installing it during commissioning This will allow the controller to start controlling and you will easily see if there is something wrong If the controller is being used as a PID controller the output will be on and stay on at first and the temperature will rise towards the setpoint As it nears the setpoint it will begin to switch on and off You can monitor this by watching the C1 light on the display When the output is on and it is heating the light will be on
22. rusion barrel zones this method works just as well as proportional You can however have a second output optional extra that will provide full PID control on a second output and use it on a solenoid liquid cooling system should you so require When using the alarm for cooling you can set the gap between the heating and cooling setpoints and also specify how long the cooling must stay on each time it switches on using the hysteresis adjustment When using the alarm for cooling the first thing to do is select the Alarm Function that links the alarm to the setpoint by a fixed Gap That is Alarm Function diF H Deviation alarm high selected in oPt 1 level The VT26 series controllers are supplied with this as a default setting This means that the Alarm setpoint will be linked to the main Heating setpoint by a gap as shown below When you move the main setpoint Heating Setpoint the Alarm Cooling Setpoint will follow always offset by the gap Once you have selected this function you now set the gap This is done in Level 1 using the A1Sp setting This will be the amount of degrees C that the Alarm Setpoint Cooling Setpoint will be above the Main Setpoint Heating Setpoint You can now set the Hysterisis band attached to the alarm setpoint that will determine how long the cooling stays on each time it is switched on The temperature must rise to the alarm setpoint which in this case wil
23. timer function to control a dwell time after which the output will be cut off b Set the AlFu to EaFF andset A ind to LAEH latch c Now check the parameter FENE which allows you to choose between hours and minutes or minutes and seconds for the time setting when setting OOR 6 10 Master Slave Options a When choosing the Master Slave options you are choosing controllers that are pre set to have the Master controller set point transmitted by RS485 comms to the slave units b Each slave unit will have the same setpoint as the master This is useful when having a series of zones along which all set points should be the same All you need to do is change the Master unit and all others follow d You can in fact use the Spof setting and create a profile all based on the master setpoint but in those with a Spof value being different by that amount VT26 MANUAL QIS 2 V6 16 7 PROGRAMMING LEVEL PARAMETERS Ist Prog Level 2nd Prog Level 3rd Prog Level sels A Vv bed EJ Lol 0 C FT r When 2 Output Cooling is not selected CPb Cti Ctd HYS2 and db parameters are not available When Pb 0 0 HYS1 will be skipped When CPb 0 0 HYS2 will be skipped VT26 MANUAL QIS 2 V6 4 Prog Level 5 Prog Level KI EEEE 4 E El ane ca EE Ed 17 8 ERROR MESSAGES AND TROUBLESHOOTING Incorrect input sensor selection Check connect input sensor selection
24. uning microprocessor based controller These controllers carry a two year factory warranty The VERTEX microprocessor controllers are FUZZY ENHANCED proportional integral derivative PID controllers that come in a variety of standard DIN sizes The input is configurable and allows selection of inputs between thermocouples and RTD s You can also have 4 20 and other linear inputs as an option to be specified when ordering the controller When ordering your controller you can choose between Relay SSR Heat Cool 4 20 mA or other output signals They have dual displays that show the input measured temperature in the top digital display and the required set point in the lower They all come standard with 2 alarm relay outputs The controller boasts a comprehensive range of other features that include a ramp soft start with power limiting auto manual function and comes standard with two configurable alarms The controllers can be switched to manual and can work as time based ratio out put controllers in the event of thermocouple or input failures taking place There are other options you can choose including retransmission of either the PV or SV or RS485 communications We have a simple data package software that you can use free of charge to link to and monitor or record data 2 INAHURRY Vertex temperature controllers although quiet sophisticated can be very simple to use as well In it s simplest form all you need to
25. ution 1 Proportional Band a High overshoot or Oscillations 2 Integral Time a Instability or Oscillations NE Slow response or Oscillations 3 Derivative Time High overshoot 64 MANUAL CONTROL Manual control allows the user to manually force the output percentage from 0 0 through 100 0 usually used for testing purposes To access the manual control mode set the HHnd parameter to yes the rightmost decimal MA on SV display will flash Then the al EL parameter will display alternately oV EL and process value The output percentage then can be adjusted by using up or down key to increase or decrease the temperature To abort the manual control just simply set the HHnd to no BE AWARE THAT THE CONTROLLER CANNOT MAKE ANY CORRECTIONS SHOULD THE TEMPERATURE GET TOO HOT WHILE YOU HAVE IT IN MANUAL MODE 65 ALARM FUNCTIONS There are two independent alarm outputs available in VT20 series controllers Each alarm can be set to function in one of six alarm function modes below Process high process low deviation high deviation low band high and band low for A IFL or HEFL When the alarm output is not used set to non to prevent unwanted alarm action VT26 MANUAL QIS 2 V6 13 A1FU A2FU ALARM TYPE ALARM OUTPUT OPERATION Process high alarm This alarm will turn on when PV SP and stay on while it is above SV A PV SP Process low alarm This alarm will turn WE on below SV and st
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