VT26 Series Shortform Manual In a hurry..
Contents
1. VT4826 i VT4826 oo 16 ey 16 11 12 11 12 17 17 OUTPUT 1 OUTPUT 1 SUNIA OUTPUT 2 VT7226 VT7226 11 1 gii 1 12 2 8 12 2 OUTPUT 1 OUTPUT 2 OUTPUT 1 OUTPUT 2 VT4926 VT9626 VT4926 VT9626 17 15 17 415 a 116 18 16 18 OUTPUT 1 OUTPUT 2 GOT OUTPUTS VT9426 17 18 15 16 17 18 15 16 e Do ae TO OUTPUT 1 OUTPUT 2 OUTPUT 1 OUTPUT 2 Front Panel Description FRONT PANEL DESCRIPTION ITEM DESCRIPTION 1 The process value Displays the input measurement temperature pressure etc PV 2 Displays the parameter name when selected 3 Displays error messages when they occur 1 The set value Displays the setpoint SV 2 Displays the parameter data when selected 3 Displays the output percentage value when selected Auto tune LED indicator When the controller is auto tuning the decimal point in the bottom right hand corner of the PV display will blink Manual mode LED indicator When the manual mode is selected the decimal point in the bottom right hand corner of the SV display will blink Alarm 1 relay status LED indicator This LED is lit in re2. 90 264 py AC90 264 19 0 0 En 50Hz 60Hz 50Hz 60Hz o Ope 20 19 20 Sensor Input Signal Standard input signals can be either Thermocouple or RTD which can be user configured via the key pad and menu You may also have chosen one of the other optional inputs like linear 4 20mA or dcVoltage This must be specified at the time of ordering and the controller will be supplied already set for that input Wiring for the various inputs is shown below Control output DC V DC mA Thermocouple PT100 VT4826 VT4826 VT4826 7 8 9 8 9 CO NI DC V DC mA DC mV VT7226 VT4926 VT4926 VT4926 VT9626 VT9626 VT9626 8 8 8 9 9 m g 10 10 10 VT9426 VT9426 VT9426 8 10 8 9 10 8 9 10 i j i EN NI DC V DC mA DC mV As standard our controller will be supplied with either a relay output to be used to switch amongst other things a contactor for the load or a pulsed voltage output to drive a SSR solid state relay or if chosen at the time of ordering other analog outputs such as the 4 20 mA output or the 0 10 volt output The various terminal connection details are shown below SSR DC V DC MA el DC mV
3. VT26 Series Shortform Manual In a hurry This controller although quiet sophisticated in it s simplest form is very easy to install and use In essence all you need to do is follow a few simple steps and away you go The steps are e Product verification To ensure that what you ordered and what you need are what you have e Wiring connection Guidelines A simple help showing how to interpret the connection drawing on the side of the controller e Front Panel Description Explaining the displays and keys and their functions e Power up self test Explaining what information you see when the unit is powered up e Preliminary Quick Operational Test Some simple things to check once installation is complete e How to change the input Type e Auto Tuning your controller Very important to get the best results from your system e Panel cut out detail Before installing please check the label to see that the controller you received is what you wanted and in fact meets your requirements Points to check are Product verification check The sections encircled by the colours on the label as shown below identify detailed information CD MODEL NUMBER INTPUT Available input types are 1 a T C Thermocouple J K T E B R S N C 2 0 PT100 RTD DIN PT 100 JIS PT 100 3 2 LINEAR Linear 4 20mA 0O 50mV 1 5V O 10V For linear input check the scale low and high values CD OUTPUT1 and OUTPUT2 if installe
4. d Available output types are 1 0 RELAY Potential free contact Normally open SPST 2 0 SSR 24Vdc pulsed pulsed voltage to drive SSR 2 n 4 20mA linear current 3 o Other linear output signals such as mA mV or volts OPTIONS Avaliable optional extras include 1 0 RS 485 communications MODBUS RTU format When you have RS485 comms one controller can be configured to be the master and others as slaves 2 o Retransmission of the PV process value or SV setpoint value values that can be in the form of either mA or mV or volt signals Each controller comes standard with two alarms CE l 0 90 250 VAC INPUT m Alarm2 Alarm1 VT9626 VT9630 O T C 24 VDC Ra II aye ER Ge aa fan C Output 2 om sy a a L Te m2 DA Si Ene OUTPUT 2 SP2 Alarm 2 r n EN O RELAY Pd aand en DO SSR s 5 TX 8 9 o ake 3 d O 4 20mA si Output 1 2AVOC 5 said o serz OUTPUT 2 i ns Q O RELAY MINPUT IE 5 a j sa e DO SSR CA p_i i ii SGALE Ere EE O 4 20mA frap 0 O4 20ma O OPTION RS485 J4 ZOmA Retransmissior Wiring Connection Guidelines Power supply The power supply voltage will be shown on the label and can be either 907250 Volts or 18736 Volts AC or DC VT4826 VT7226 O DC24V HO o AC90 264 n a 3 AD 50Hz 60Hz or AC90 264 O 50Hz 60Hz 12 o cav 19 VT4926 VT9626 VTO426 HO opcz4v AC
5. d when the alarm 1 relay is activated This LED flashes when the alarm is configured as an Event Soak timer and is in the process of counting down Alarm 2 relay status LED indicator This LED is lit in red when the alarm 2 relay is activated This LED flashes when the alarm is configured as an Event Soak timer and is in the process of counting down Control output 1 status LED indicator Iiluminates in green when the control output 1 is activated Control output 2 status LED indicator lluminates in green when the control output 2 is activated KEYPAD DESCRIPTION SET KEY 1 Press once to access the next programmable parameter 2 Press this key for 5 seconds to reset alarm timer UP KEY Press to increase the setpoint or parameter value DOWN KEY Press to decrease the setpoint or parameter value SHIFT KEY Press the shift key for 5 seconds to execute Auto Tune process YE 5 mode To abort the YE 5 Auto Tune process press the shift key for 5 seconas Return to normal position Press the set and up keys once to return the normal operation aiter entering any parameter level or just wait for 5 seconds and it will return automatically Access Parameter settings Press together for 5 Press the set and shift keys simultaneously for 5 seconds until the display reads Level in the top seconds display Then use the up and down keys to select programming level required Press the set key to enter the level requ
6. hange anything on the machine just simply let it tune away In general it should all be over in a few minutes but that depends on your system e You can choose to do the auto tune procedure at that setpoint or at a setpoint 10 below the value as shown in the diagram by selecting yes1 or yes 2 as explained below PV PV e To begin the procedure press the set key BET three times to reach the HE parameter and then use the up and down buttons to choose either yes 1 or yes 2 as explained above e Once that is done the HE LED at the bottom left hand corner of the PV display will begin flashing and only stop on completion of the procedure Panel cutout detail EE ep d Er b E ji a e N 68 0 5 68 0 5 45 0 5 92 0 5 120 mn jon jn je n VAN DAN AN ek l cA 10
7. ired Access Engineering Units Eas va Press together for 5 a Press the UP and DOWN keys simultaneously for 5 seconds to access LnLo and seconds LnHi parameters Power up self test Once you have connected the wires and are ready to turn the controller on the controller will do a self test During the self test it will show you in seduence the following information e Attheoutset it will power up all the segments of the LED display to show that they are lighting correctly and none are faulty EVA VERTEX VT9626 e Next it will show the measuring unit you have selected in the top display and the input type in the bottom VERTEX e Next it will show the high value of the range set in the top display and the low value of the range in the bottom le 0 1000 C Thereafter it will revert to its normal display status showing the measured temperature in the top PV display and your setpoint in the bottom display In the event that you wish to change one of these parameters please refer to the appropriate section in the full manual Preliminary Quick Operational test You now need to check that the overall system is now working correctly before attempting to set and tune the controller for final operating conditions To do this change or ensure that the setpoint is higher than the measured temperature and then that the control output indicator C1 is lit At the same time check that the control de
8. ki ay keys to revert to the normal operating display position ME 50 1000 kaal 1832 E 50 1370 58 2498 270 400 454 752 50 750 58 1382 ME a 0 1750 32 3182 ON am ma 50 1800 58 3272 Auto Tuning your VT26 Series controller All installations are different and therefore you will need to set the control parameters of your controller to suite the dynamics of your system This is called tuning your controller In essence what will happen is that the controller will automatically force the temperature to rise above the setpoint by a small amount then drop back down again repeat the procedure once again then calculate the parameters itself and set them PID Parameters After doing this you should have the best possible control stability for your system Steps to follow e Firstly choose a setpoint at which you wish to do the Auto tune procedure and allow the controller and system to reach that temperature and stabilize This will normally be at or around your final expected operating temperature e The auto tune procedure should normally only be done once after installing the controller perhaps repeated again if the results are not duite good enough e itisbest done during normal operating conditions of the machine or system of course taking care that the expected overshoot does not damage you product e While the auto tune procedure is in progress do not touch or c
9. vice either your contactor or SSR is switched on and that the PV reading is rising in temperature When you drop the setpoint below the measured temperature the contactor or SSR should switch off This will indicate that the controller is working correctly If you are using your controller with an analog output when the SV is higher than the PV the C1 LED will flash rapidly The SCR should be increasing the output and the PV rising in temperature If in doing these tests you suspect something is not working as it should please refer to the full user manual In order to change the setpoint you first need to press the key to select the digit you wish to change then use the up and down buttons to change it How to change the input type Press the Es keys together for a few seconds until the display changes and reads level in the top display Then use the up key to change from Sof E in the SV display to afE You then press the EE key once to move to the EYPE parameter Now use the up and down keys to select the input type you need You can now set the input range This is not a setpoint high and low limiter but the input range Press the EIS key again a few times until you reach the Lolt parameter Generally leave this a 0 C Press the SE key again to reach the Hilt parameter Set this to a suitable high range setting to suit your application Typically 0 100 or O 400 or 07600 etc etc After you have completed press the
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