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Eldar Shany

1. minutes value is a function of the greenhouse volume compared to the total heat production capacity It can vary between 15 to 45 minutes and is a subject to be studied by the user on each greenhouse specifically pore Proportional coefficient Set to a value from 0 1 to 1 recommended value 0 7 Kp THT Integral coefficient Ki Set to a value from 0 1 to 1 recommended value 0 1 0 3 HHH Water temp per 1 air Set the influence rate of the PI result as received in air temperature Influence rate air water required correction on the required water temperature change FHH Page 27 The parameters that are general to the entire greenhouse are x Greenhouse Type the calculated greenhouse surface in 1000 m 0 1 hectare surface area 1000 units m Surface heat Type the thermal conductivity constant of the material your transfer factor W greenhouse is made of as provided by the manufacturer Should m degree your greenhouse consist of more than one material you may calculate the average or ignore the sidewalls and consider the roof only Surface infiltration The average radiation infiltration constant of the material your factor greenhouse is made of as provided by the manufacturer Should your greenhouse consist of more than one material ignore the sidewalls and consider the roof only Wind chill factor When this parameter
2. n end time 532 n 221 42 Temp Sensor No An option enabling reference to a spatial sensor during the segment time Pick a sensor from the Temperature sensors or Groups table 532 n 221 43 Hum Sensor No An option enabling reference to a spatial sensor during the segment time Pick a sensor from the Humidity sensors or Groups table 532 n 221 4 Page 14 Avoiding Low Humidity The humidity control feature for windows is new in version 2 04A3 This is the opposite method to the cyclic ventilation and is aimed at avoiding undesirable low humidity that results in high plant transpiration It is restricted to day segment and is never activated if day segments are not set properly Hum to Oper Below If the humidity in the day segment drops below this je 1 Low Hum to Start point the greenhouse is status is set as Low Hum Accumulation Humidity Hum Diff to Stop The humidity differential that indicates the end of 532 n 2221 2 Hum Diff to Stop Low Humidity status Hum Accumulation Add to Open Temp Allow the greenhouse temperature to be higher in 532 n 2221 3 Addition to order to attain higher humidity This is performed by Window Open changing the opening set point of all the windows Temp Set Point Tmp Diff to Cancel If the temperature exceeds the original window set 532 n 2221 44 Diff from Window point in this value the Low Humidity flag will go Open Temp S
3. sec per 1 0 deg Of water temp Set to 0 1 0 05 of the delay time Minimum shift delay Se to 0 High external temperature to stop circulation pump The circulation pump is set to constant operation unless the external temperature is absolutely safe from freezing Set to 20 C Circulation pump stop delay Set to 60 Stop circulation pump if valve is closed Set to NO unless 2 way valve used Pipe surface m2 Calculate the entire surface of the hot water pipes and fill in Water pump flow rate Fill in according to the pump s specifications Pipe heat transfer factor W m2 deg Find the average heat conductivity constant of the cycle pipes and set here Contact your heating system manufacturer for more details The following parameters are options to limit the minimal temperature of the water returns to the boiler in order to protect the boiler The control system will then compromise on the heating capacity and let more hot water return to the boiler In large scale sites the user is expected to define which greenhouses or cycles are less critical and which are more Return water temp sensor number Define a sensor from the temperature sensors table that monitors the greenhouse or cycle water exit Return water temp to decrease heat below Set the minimal temperature that can be returned to the boiler Decrease req air temp Set the percenta
4. Above Alarm No when AL Inp Alarm No when Sets off an alarm when the General sensor s value drops below a set point Sets off an alarm when the General sensor s value rises above a Set point Alarm No in controller the digit to the left of the dot In a PC the digit to the left of the slash If an alarm output and device were assigned to a climate alarm write the number of that output If no output was assigned you can leave it zero In this case the alarm will be displayed on the controller s LCD and on the PC screen if exist only When in controller the digit to the right of the dot In a PC the digit to the right of the slash This also refers to real output activation only Write lt 1 gt to be alerted day and night lt 2 gt for night alerts lt 3 gt for day alerts and lt 0 gt to prevent that sensor from alerting you any time Alarm No in controller the digit to the left of the dot In a PC the digit to the left of the slash If an alarm output and device were assigned to a climate alarm write the number of that output If no output was assigned you can leave it zero In this case the alarm will be displayed on the controller s LCD and on the PC screen if exist only When in controller the digit to the right of the dot In a PC the digit to the right of the slash This also refers to real output activation only Write lt 1 gt to be alerted day and nigh
5. Gen sns oper above High value gen sns to oper above o N when the temperature drops nter a set point for devices that you want to turn N when the temperature rises nter a set point for devices that you want to turn N when humidity drops nter a set point for devices that you want to turn N when humidity rises nter a set point for devices that you want to turn N when the General sensor s S A EC pH radiation wind or any other value drops Enter a set point for devices that you want to turn ON when the General sensor s S A EC pH radiation wind or any other value rises mlo mlo w o mjo 2 3 4 5 6 532 m 81 47 532 n 81 8 Oper By sensors Use the Select button to define whether the output 532 n 81 Operation method refers to sensors or is operated by hours 9 Oper Time sec Wait time sec Wait time sec An option for intermittent operation Operation time must be non zero to have the device work The wait time can remain zero if you want constant operation or be any other number in seconds for intermittent operation Activation by other processes or components Most components in the greenhouse can enforce activation or inactivation of free outputs All you have to do is to set the proper link in the proper place and avoid conflicts In case of a conflict inactivation is the dominant Enforcing the free outputs due to occasions At fan oper No Du
6. H7 is a new approach in ES programs that taking into consideration external conditions and determining the heating reguirement accordingly The system applies 3 PI adjustments so that the program will study greenhouse characteristics and make up for necessary inaccuracy of the user s settings In order to achieve the self correction goal the program reguires the user to fill in many more details about the greenhouse and the heating circles surface and heat conductivity coefficient Valves and pumps setup Water temp sensor No Define a sensor from the temperature sensors table that monitors the water temperature at the entrance of the heating circle Valve opening time sec Measure the servo valve s motor full opening time and fill in Valve closing time sec Measure the servo valve s motor full closing time and fill in Shifting steps per valves Set to 100 Valve shift delay Set delay according to the water temperature sensor respond time to changes in the 3 way valve To determine this timer do the following a Move the valve to manual and wait 10 minutes b Record the current read of the water temperature c Make a change of 20 in the valve s angle and set a stopwatch d Register the stopwatch time when the temperature starts to change t1 e Register the stopwatch time when the temperature balances t2 Set the delay tp to tp t1 t2 t1 0 75 Decrease shift delay
7. Process start time Must be later 1 Close all windows 2 Start internal air circulation at 3 Stop all fans vent and spray processes if reguested at Operate start time Attempt to turn fogger or other spray device ON subject to set points at do Stop attempt to operate fogger must be later at Stop General output do Stop internal air circulators or any other component that attached to general output conditioned with spray must be later m din do Release windows and fans to self control P release all processes that were locked by spray Page 46 Spray Chart Is temperature below set point Is wind grade below set point ity delay ust remain over Is humidity below set noint int for longer then Constantly recheck Spray Setup Max window stage All windows will not open more then this stage 532 n 65 Temperature sensor while the process is on 1 No temp sensor No Sensors table to which this Spray process refers 2 Hum sensor No The humidity sensor from the Humidity Sensors gt Page 47 Spray active Y N Sprayer single time 1 Start proc date 532 n 61 Process start date Real date limits of process operation 2 dd mm End proc date 532 n 61 Process end date 3 dd mm Start proc time 532 n 61 Process start time nm hh mm Start output time Process Envelope 532 n 61 Output start time See chart above HS hh mm Stop outp
8. S P shift HH MM Set timer to start and end the gradual change The recommended value is 15 minutes for each 1 C Nighttime air temperature set point Set the reguired nighttime temperature according to day and night setting in the controller setup Gradual S P shift HH MM Set timer to start and end the gradual change The recommended value is 15 minutes for each 1 C Segment start hour Set start hour for overriding segment 1 Segment stop hour Set stop hour for overriding segment 1 Segment 1 air temperature set point Set required temperature for overriding segment 1 Gradual S P shift HH MM Set timer to start and end the gradual change The recommended value is 15 minutes for each 1 C Segment 2 start hour Set start hour for overriding segment 2 Segment 2 stop hour Set stop hour for overriding segment 2 Segment 2 air temperature set point Set required temperature for overriding segment 2 Gradual S P shift HH MM Set timer to start and end the gradual change The recommended value is 15 minutes for each 1 C Page 30 Flow chart External temperature Calculation of wind chill External radiation temperature Calculation of energy lost in Calculation of energy gain Wim according to thermal in W m according to conductivity coefficient Infiltration coefficient Calculation of the greenhouse energy consumpt
9. Sensors table to id General sensor which this heating process refers No Heating Programming Heater active Use the Select button to define the active heater 532 n 41 Heat active Y N 1 Oper Tmp Day The temperature set point to activate the heater 532 n 41 Day heat operate tmp during day time 2 Below Oper Tmp night The temperature set point to activate the heater oe Night heat operate during night time tmp Below Start time tmp Segment 1 532 n 41 Tmp heat oper Option for different heating temperatures at 4 hour different hours The given set point will override End time tmp 1 the usual day night set point during the time 532 n 41 Tmp heat stop between start time and end time hour Tmp To oper Blw 1 532 n 41 Tmp 1 oper Heat 6 setpoint below Start time tmp 2 Segment 2 532 n 41 Tmp heat oper Option for different heating temperatures at 7 hour different hours The given set point will override End time tmp 2 the usual day night set point during the time 532 n 41 Tmp 1 heat stop between start time and end time pe hour Tmp To oper Blw 2 532 n 41 Tmp 1 oper Heat ee setpoint below Start time tmp 3 Segment 3 532 n 41 Tmp heat oper Option for different heating temperatures at 10 hour different hours The given set point will override End time tmp 3 the usual day night set point during the time 532 n 41 Tmp 1 heat
10. above High temp to stop above Low ext tmp Below Outside temp to stop below High ext hum above Outside Hum to stop above Alarm input No Fail input to stop cool oper Stop the process when the greenhouse s or other reference sensor temperature drops below this set point Stop the process when the greenhouse s or other reference sensor humidity rises above this set point May indicate a non functioning device Stop process if unable to chill down and let the windows open and do what they can Stop the process when the outdoor temperature drops below this set point Stop the process when outdoor humidity rises above this set point Cooling my not be efficient any more A discrete input that indicates electrical failure in the cooling device Continuing running of the process may be harmful Page 34 532 n 92 1 532 n 92 42 m 532 n 92 4 532 n 92 5 532 n 92 46 Pulsing Programming Some of the cooling devices must run intermittently Sprinklers for instance cannot run constantly because this would cause flooding of the area The program enables you to adjust the pulses according to how far the temperature is from the set point Oper Time sec ON timer 532 n 931 Non zero Oper time sec 1 Wait time sec OFF timer 532 n 931 Zero for wet Wait time sec 2 pad Tmp diff from setup The difference between the greenhouse temperature 532 n 92 Temp
11. diff to change and the set point used to decide that a change is 1 cycle below required Inc oper 1 deg The percentage for increasing the ON time of the 532 n 92 Increase work time device from the original time for each 1 degree 2 1deg centigrade of difference Max oper Time sec Upper limit for ON time change 532 n 92 Maximum work time MS sec Dec wait time 1 The percentage decreasing the OFF time of the 532 n 92 deg device from the original time for each 1 degree 4 Decrease wait time centigrade of difference 1 deg Min wait time sec Lower limit for OFF time change 532 n 92 Minimum wait time 5 sec Page 35 Chapter 6 Thermal Screen Thermal screens are used for 2 different functions During daytime between latitude 35 north to 35 south spreading thermal screen is the best way to control radiation and keep temperatures low At nighttime when heat is needed Thermal screen helps to save energy by reducing the chamber volume Each greenhouse chamber can have 2 Thermal screens They may be either on different levels each is covering the whole greenhouse area or covering a part of the greenhouse each In some sites screens are applied externally over the greenhouse roof Most shading devices are not the perfect solutions because they have only 2 efficient positions Partial spreading of thermal screens is not efficient because it does not affect the entire
12. explicitly referred to in another process the spray process Spray process activates its linked free outputs according to a spatial program When a free output is assigned to a process either way the process activation result overrides any other condition that may be set for this free output In case of a conflict between operate and stop links the result cannot be forecast For PC users unlike all other greenhouse components free outputs cannot be observed in the greenhouse status window and cannot be accessed from the window To view or program a free output click lt Main gt in the menu bar and lt Free Air Mixer gt in the pull down menu Free Output Setup Tmp Sensor No The temperature sensor from the Temperature 532 n 84 Temperature sensor sensors table to which this free output refers 1 No The humidity sensor from the Humidity sensors Humidity sensor No table to which this free output refers 2 The general sensor from the General sensors table General sensor No to which this free output refers 3 Page 50 ramming Operate hour Stop hour Tmp To operate below Free Output Pro Start hour 532 n 81 1 End hour Enter a set point for devices that you want to turn Low tmp To oper below High tmp To oper above Hum To oper below Low hum To oper below Hum To oper above High hum to oper above Gen sns oper below Low value gen sns to oper below
13. for windows and screens to take effect and it takes even more time until we can read the results of an action on the internal sensors In addition freguent activity causes high component erosion Our method for dealing with this is to divide the possible wind speed into 6 stages 0 5 Each client sets the value reguired for stages changes and 2 timers one is a minimal time period at a certain speed for switching to a higher stage and the other is a minimal time period at low wind to switch to a lower stage The components and processes influenced by wind velocity now refer to these stages and not to operating speed Default values are quite safe If your greenhouse is well build and can withstand stronger wind you may want to change these values Common wind direction sensors are swing up to 20 degrees in each direction These swings are not desirable for agriculturists using wind direction to control greenhouse windows A spatial timer enables us to set a measuring interval assuming that wind speed does not change too quickly Please refer to Elgal Setup manual chapter 1 to learn more of meteorological definitions and recommended set values To set all meteorology sensors and inputs connection see the I O setup chapter in the Hardware part Page 4 Grouping of Sensors Till now all sensors were connected and defined by a controller s property Now if you have installed more then one sensor of a kind in each chamber you m
14. higher then internal above Low ext hum below External Hum To stop fans below Link fan to process At cycle vent No Operate during cyclic vent No 0 1234 At spatial vent No Operate during spatial vent No 0 1234 A differential to balance the fan operation 532 n 3112 e Creates the linkage between each fans group and 532 n 3113 1 E each cooling process For example writing 12 in group 1 column indicates that fans group 1 to 532 n 3113 2 m 532 n 3113 43 participate in cooling process 1 and 2 Writing 24 532 n 3114 1 7 in group 3 column indicates that fans group 3 to 532 n 3114 2 participate in cooling process 2 and 4 The temperature to start fans group when cooling process active A differential to balance the fan operation The set difference will become a necessary condition for operating the fan when no process is on The outdoor temperature must be lower then the indoor temperature by at least this value to enable fan operation Example if you enter 4 here and the fan s temperature is 28 the fan will operate only as long as outdoor temperature is lower the 24 The minimal external humidity to enable fan operation when no process is on When external humidity drops below this value fans group will stop Creates the linkage between each fans group and each cyclic ventilation process For example writing 12 in group 1 column will indicate fans group to participate in cyclic ven
15. minutes here not applicable in this version 532 n 26 2 532 n 21 1 532 n 21 2 532 n 21 3 Elgal system is capable of managing your windows according to wind speed and direction if your project is equipped with the proper sensors All you have to do is to set the window direction in Windows Setup screen as follows Page 12 A Important In case of self construction make sure the climate station is facing North This is the only way to adjust the wind direction sensor Wind and Rain Conditions Once the window direction is defined the control program no longer monitors the actual wind direction but rather monitors the flag that indicates whether or not the wind is in the Window Direction Each window can have its own set for reguested levels for each wind level that define whether the wind is Upwind or Downwind There is also a connected table for levels in rainy condition The 2 tables are in codes 532 n 271 No Rain stage and 532 n 272 Rainy stage Each table has sub tables for upwind and downwind and each one of them has a set value for the maximum stage at each wind velocity level In the PC software it is all in one window when you click the Wind Rain Conditions Setting from the main window s Information window Windows Connecting to Other Components and Process Additional Conditions Oper with Fans No Creates the link between the window and a group of 532 n 24 1 Oper During Fan f
16. set to 1 recommended The system coefficient continuously calculates the effective external temperature according to a wind chill table You may reduce the wind effect on the temperature or totally eliminate it by setting this parameter to any value from 1 to 0 External radiation Set what percentage of the radiation read finally effects the for heat calculation greenhouse temperature The recommended value is 85 98 Note that regardless of the type of your solar radiation sensor the system will always calculate the radiation in W m In daylight the system will attempt to keep the heat production capacity in accordance with the added solar energy Activate PID A YES NO parameter See explanation at the top of the page control Hot water from boilers Back to boilers From circle gt 3 way valve To circle Circulatin pump Page 28 General tips Regardless of the type of control you prefer to use you must understand that to base an accurate energy balance on greenhouse constants calculation is impossible There are enormous effects like angles dust opened cracks and above all the thermal conductivity that is not constant but exponential When you first install this software to a controller and plan to run your heating system you will enter the known parameters that will be of use for the program to do an approximate primary calculation Your first few heating nights are the nights that yo
17. solenoid valve for a distance of up to 50m or a valve suction pump for distance of 50 150m or for a guicker respond in shorter distance To that device you connect 8mm hose and a filter on its end The module in the program is operating the sampled points outputs in a circular mode storing each point s value in a different memory address The program after a proper setting can relate those address to the concerned greenhouse IN L754 GS CO sensor X Water trap From greenhouse 1 From greenhouse 2 From greenhouse 3 N From greenhouse 4 CO scanner setup Select Exist using the 71 8 CO gen Sns No Pick the general sensor from general sensors table 5151 1 CO sensor Gen that the CO sensor connected to sensor No Sample points No Set the number of existing points in your system 5151 2 Scanning points No 0 10 Papas ee Start operation time End operation time Measure point active weather it is active or not Reading time sec Set the scanning time on every cycle for each one 5152 2 1 min or Point scan time of the active points The length of the sampling more secs hose and the private pump absence are the factors you have to consider Take notice that it takes 20 seconds for the sensors to clear the influence of the old gas and display the new sample Page 44 The scanner module will transmit each poin s value as received at the end of the sampling The va
18. stop between start time and end time CS hour Tmp To oper Blw 3 532 n 41 setpoint below Start time tmp 4 Segment 4 532 n 41 Tmp 1 heat oper Option for different heating temperatures at 13 hour different hours The given set point will override End time tmp 4 the usual day night set point during the time ee Tmp 1 heat stop between start time and end time 14 hour Page 23 Tmp To oper Blw 4 532 n 41 Tmp 1 oper Heat 15 setpoint below Tmp Oper at CO2 The requested temperature when CO2 process is 532 n 41 CO2 proc Heat oper on 16 tmp Tmp Diff to stop The differential for all heating times Output stops 532 n 41 Stop heat tmp diff when the temperature reaches the set point 17 differential Stop Conditions Stop at vent No A stop link between heat and fan output For 532 n 42 During fan operation example writing 14 here will make the heating 1 No stop whenever fan groups No 1 and or 4 are on Stop at spray No A stop link between heat and spray process For 532 n 42 During spray process example writing 24 here will make heating stop 2 No when spray process 2 and or 4 are on If window opened Does not allow heating to operate when one or 532 n 42 Stop heating while more of the windows are not completely closed 3 window is open Page 24 Circular Heating in GH 2 04 P7 General characteristics The new software of 2 04
19. this 532 n 51 2 CO2 Output stop value operate temp f the temperature remains 4 temp diff between these boundaries for longer then OWD the process will be stopped Dif To stop proc Differential to stop the entire process Must be 532 n 51 4 Process stop temp higher then the output diff 5 diff Minimal operate The process stops if radiation is lower then the 532 n 51 radiation value the user defines here for longer then OWD P Process operate radiation CO2 ppm oprate Below CO2 device can be ON only if CO2 sensor s value 532 n 51 CO2 enrichment is lower then the value the user defined here or if it 7 value remains zero in case of sensor absence 00 8 PPM differential To CO2 device stops when CO2 sensor s reading is 532 n 51 l stop higher then lt operate co2 ppm ppm differential gt CO2 enrichment stop diff Maximum window Window can open up to this stage whenever the 532 n 51 stage process is active 9 Maximum window level Open window delay The time that windows remain closed after the end 532 n 51 OWD of the process in minutes 10 Window open delay at procedure end Stop and Delay conditions Above The process stops if humidity is higher then Hum eee ed Process stop humidity To stop for longer then Hum delay If this 1 Delay before stop happens OWD is ignored and windows 532 n 52 10 mnt immediately open 2 Process stop hum delay High ext temp Above The goal of this parameter i
20. too low not lower then that point cancel below Operate time min The spatial interval set for those conditions 532 n 3214 4 Work time minutes pac UN Wait time minutes Page 20 Special vent The main use of special vent is for cleaning the air of spray remains or drying up cooling device It is another way to set a vent process and you can use it if you need vent that will operate on low temperature and stop if temperature rises Every column in special vent screen is a unigue program not an output to define what outputs are taking part in each see line Operate at special vent No in fans programming screen Start time Start time 532 n 32211 1 Spatial vent start time Operate time mnt A count down timer 532 n 32211 2 Spatial vent work time minutes Low int tmp Blw First stop condition low internal temperature 532 n 32212 1 Int low temp to stop below Low ext tmp Blw Second stop condition low external temperature 532 n 32212 2 below Low Gen Sns Blw Third stop condition low general sensor such as 532 n 32212 3 stop below High Gen Sns Abv Fourth stop condition high general sensor such as 532 n 32212 4 Gen Sensor high value to wind speed etc stop above Stop at cool No A stop link to cooling process writing 14 for 532 n 32212 5 Stop during cooling operation example gives priority to cooling process 1 and 4 0 1234 over this process Stop at spra
21. CO2 Gen No If the greenhouse is equipped with a CO2 sensor which is 532 n 12 4 CO2 sensor Gen No defined in the General sensors table type sensor s number here For a CO2 scanning point on the same controller type a number from 71 to 80 according to the point For a CO2 scanning point originating via communication type the imported number from 31 to 60 Page 6 Sensors for data logging You can select the sensors that will be visible in the greenhouse information panel from among all the sensors available in the controller This also includes sensors originating from another controller whose data is transmitted via the communication center However In most cases you will prefer to see only the sensors that are actually located in a certain greenhouse For instance if greenhouse No 1 has 2 dry wet temperature humidity cells and you bind them into group No 21 you will naturally set all the greenhouse components to operate based on that group and you will be able to view data from them in all component information screens Nevertheless you may still be interested in individual sensors to ensure that they are balanced In this case you will set the following sensors for display A 1 B 2 C 21 You may wish to see the outdoor sensor which you can set in D The above settings also define the appearance of data in the PC file see the Data Collection chapter First 12 columns after the time column are rese
22. E SEA EATER 16 BASIC FANS OPERATION CHARTA neran sccevees ccs dessuckees a caecesbesveaes Gucdceveseteededbcceccsvsesuedstee cidos 16 FANS PROGRAMMING SETUP v2 etann uen ag E KN E E N h EEE EEA I EE e T R cdssessebendeads 17 Fans operation for reducing temperature and at CO0lINE 2600 17 TH ANS StOP CONGILIONS LA E E E E E 18 CYCLIC VENTILATION HUMIDITY EXTRACTION PROCESS eee 19 CYCLIC VENTA OMS CU A a vo eaten Bae ete 19 Operate cyclic Ventilation Process 20 A A dva od Se SK Tet aa 19 Stop conditions and Priorit s 00 ceeececececesesscesecsceescecseeecsseeceesecseesecseesscsseeneeseeseesecaeeseenceeseeaeeaeesecaeeeeenees 20 Operate On NEON EMULE a A Hane no oo 20 SPECIAL VENT 5 000 il E ee CE ago Ba G v IRE ERR AEN Ra sk 21 CHAPTER 4 HEATING 0000 ii cents sassunsusactasssovbcasacddettsnstabsabecteasuseotsdeuseddsdusecndt ivcubsatissbees sees 22 HEATING SETUP ia isis 23 IHEATING PROGRAMMING cia its 23 Stop on m la du ad o A RR 24 CIRCULAR HEATING IN GH 2 04 P7 o0ooeneeoo seno nose nooo sena n0 00 ono none eno 00 nano 00 ena R 00000000 25 GENERAL CHARACTERISTICS 0 boe 25 VATVESAND PUMPS SETUP airada aid eiii 25 CIRCLES SETUP era dit eS a 26 PI AND COEFFICIENT CORRECTION ccecssssssccecececsesscaececececsensaaececececsesaaecececscsessaaeeeceeecsessaaeaecececseseneaeees 27 GENERAL TIPS aiii we 28 A A ltd O O 29 EA REEL A EEEE EE A E E EE EE E ET E EE lit 29 GREENHOUSE TEMPERATURE CONTROL ccss
23. Oper according Operates by Cond Delay sec Delay before screen status change sec 32 n 71_ 32 1 a 2 1200 PAR 700 W m2 Temperature to lay screen above to operate by outdoor temperature refer to outdoor temperature in setup 53276 4 Roll the screen when temperature drops under this value Radiation value in selected sensor for spreading the screen 532 n 71 3 Radiation value in selected sensor for rolling the screen 4 900 PAR 550 W m2 Work by temperature and ignore radiation Work by radiation and ignore temperature Work by 2 conditions will require both 532 n 71 temperature and radiation to be above set point for screen 532 n 71 5 4 spreading and will roll if one of them drops below roll set point That delay timer is set whenever the screen moves due to 532 n 71 6 measured conditions Lay by Time Roll by Time Overrides all conditions You can define certain hours that the screen will be forced to a certain position In case of a conflict between lay and spread spread will have priority 532 n 72 Start laying time The beginning of the unconditioned lay time Spread Start time 1 532 n 72 Spread End time 2 Roll Start time 1 mom Roll End time 2 Page 37 Screen Roll up During Process Forces the screen to roll when the process is active Entering the process number in the screen column will cause the screen to roll regardless of wea
24. REENHOUSE SETUP siisssccisecsscsvssscscsvsvsasetsssecccessvacsstuccsecouvecdesesuccassevssedessbuesdeseteseveeacessese 3 METEOROLOGY SETTING c cccccccssssssscecececeessseceeececsesssececececseseaseseeeceesesssaeeeeececsesssaeceeececsensaeaeeeesesenensaaeees 4 GROUPING OF SENSORS ccccccccscecessssseceeececeesssuececececeesssececececsessneseeeeecsesesaseeeeeceeseaaeceesceeseeaaeeeeeeseeeseaeaeees 5 CONSTANT GREENHOUSE SETTINGS ccccccssssscecececsessssececececseseaseceeeceesesssaeeeecceceenssaeceeeceesesesseeeesesenenseaeees 6 SENSORS FOR DATA LOGGING cccccecessessececececeesssuececccecsensauececccecseseaaeceeececeenesaeeeeescsesesaaeceeeesesenssaeeeeseeeeeanea 7 GREENHOUSE ALARMS cccccccccceceessseceeececsesssaececececsensseceeececsessaeseceeeceesesaaeeececeesessaaeceeececsessaaeceeeesesensaaeaeees 7 CHAPTER 2 WINDOWS ea a aeaa aae ane oser aasar e aa suea eesosa Seassa seosecsacaeuestosessesvousseeese secsecsecsesbes 10 WINDOWS SETUP a a aaa a a ea aa a a a cest a a a 11 WIND AN RAN CONDITIONS a a a a E RA 13 WINDOWS CONNECTING TO OTHER COMPONENTS AND PROCESS ADDITIONAL CONDITIONS 000006 13 TEMPERATURE CONDITION PROGRAMMING ccccecsesssseceeececeesesuececececsessaeeecececsessaaeseseeecseneaaseeeeeesenenaaeees 14 AVOIDING LOW HUMIDITY sessesscacssctecteascevcesesvnd dd a E Ta cats seneueseeees sA 15 CHAPTER 3 FANS OPERATION AND VENTILATION PROCESSEG csssccssssssccssssccecssseeeeses 16 GENERA Laia o adecco e
25. a stopped process and Stop stops an operated output Page 51 10 532 m 81 11 532 n 82 1 532 n 82 2 532 n 82 3 532 n 82 4 532 n 82 5 532 n 82 6 532 n 83 6 Avoiding the free outputs due to occasions At fan oper No During fan operation No 0 1234 At heat oper No During Heat oper No 0 1234 At spray proc No During spray oper No 0 1234 At CO2 proc No During CO2 proc No 0 1234 At cool proc No During cool oper No 0 1234 At vent process Oper During vent Proc A stop link between fans group and free output For example writing 14 here will make the free output stop whenever fan groups No or and 4 are on A stop link between heating process and free output For example writing 14 here will make the free 532 n 83 1 532 n 83 2 output stop whenever heating process No 1 or and 4 are active A stop link between spray process and free output For 532 n 83 example writing 24 here will make the free output 3 stop when spray process 2 or and 4 are on A stop link between CO2 process and free output For 532 n 83 example writing 24 here will make the free output 4 stop when CO2 process 2 or and 4 are on A stop link between cooling process and free output 532 n 83 For example writing 24 here will make the free 5 output stop when cooling process 2 or and 4 are on Use the Select button to set the dependency betw
26. ans The link refers to the two following parameters Oper No Writing 13 will make the window respond to operating fans group and 3 Min Stg at Vent Do not let the window close lower then that level at 532 n 24 2 Min Level During which the linked fans are on Fan Oper 0 10 Max Stg at Vent Do not let the window open higher then that level at 532 n 24 3 Max Level During which the linked fans are on Fan Oper 0 10 Min Stg at V Proc Vent processes such as circular ventilation and 532 n 24 4 Min Level During spatial ventilation will raise the window to the Vent Proc 0 10 specified level when they are activated If the window is opened more due to the temperature this will have no effect Oper At Cool No Creates the link between the window and a cooling 532 n 24 5 Operate During process The link refers to the following parameter Misting No 0 1234 Writing 24 will make the window respond to cooling processes No 2 and 4 Fix Stage at Cool If the window is linked to a cooling process in the 6 Window Level previous parameter it will be set at the required level During Cooling 0 10 when the specified cooling process is on Min Stage at Day Minimum window level for daytime to maintain a alll 7 8 Min Window Level certain air circulation in the greenhouse regardless of at Day 0 10 the temperature Min Stage at Night Min Window Level at Night Page 13 Temperature Condition Programm
27. area Like windows and servo valves thermal screens belong to the stepping kind of outputs They use one output for spreading and another for rolling Thermal Screen Setup Full oper Sec Measure time it takes to fully spread roll the 532 n 76 Motor oper Time for screen The results in seconds 1 full spread secs Full oper Stage Division into several steps is important to prevent 532 n 76 Stages of operation 1 sudden rolling when differences are encountered H H 4 between the air above and beneath the screen Oper Delay sec Delay between the steps in seconds 532 n 76 120 Delay bet Levels during roll up secs 2 3 Tmp Sensor No The temperature sensor from the Temperature 532 n 76 Temperature sensor Sensors table to which this screen refers 4 No Hum sensor No The humidity sensor from the Humidity Sensors 532 n 76 Humidity sensor No table to which this screen refers 5 Radiation sensor Pressing the Select button in the controller or 532 n 76 External Radiation sensor selecting it with the mouse in a PC will change the 6 control of the screen between the external and internal radiation sensor Note do not operate according to a sensor located beneath the screen Page 36 Lay for Shading Tmp To lay abv Temp to spread screen above Tmp To roll blw Tmp To roll up screen below Rad To lay abv Rad To spread screen above Rad To lay blw Rad To roll up screen below
28. ay want to group them in the most common an average group Creating a group will provide you not only with a more balanced reading but will also ensure that the group s value will not be effected by a faulty sensor Other possible groups are Highest Lowest and Difference groups Highest and lowest can be used in case of a crop with very high sensitivity and a difference group enables cause activation of a component for example based on a difference between indoor and outdoor temperatures The groups are actually part of the sensors registration tables Temperature Humidity and General tables Using 1 to 20 you can register sensors from the sensor definition table Numbers 21 to 40 are pre assigned to groups Each group is used for up to 4 sensors But you can register a group within a group and thus create a larger group Sns Group type Use the Select button to pick the type of group you want as Set Group Type explained above Options are Average Lower Higher Differ Tmp Sensor No Pick a sensor from the Temperature sensors table to be the first 5131 2 Tmp Sensor No participant in the group Tmp Sensor No Pick a sensor from the Temperature sensors table to be the second 5131 3 Tmp Sensor No participant in the group Tmp Sensor No Pick a sensor from the Temperature sensors table to be the 3rd 5131 4 Tmp Sensor No participant in the group EA puting Tmp Sensor No participant in the group Set Group Type ex
29. cess 2 common windows where sensor assignment to that a greenhouse s component and processes is performed Until now this was defined as a controller property For non PC users this assignment is performed in each component process setup menu G House active Yes No Use the Select button or mouse to activate inactivate the entire 532 n 11 1 G House active Yes No greenhouse G H No for msg Important Each system i e Greenhouse Irrigation Poultry 532 n 11 2 G H No for messages and Nursery Open field connected to the same PC MUST be given data collection a unique system number Otherwise data for systems with identical numbers will be written to the same PC file resulting in nonsense data Info cycle mnt The time interval between data recording sessions on the PC 532 n 11 3 Data collect cycle minutes Int tmp tmp No For Pick the most representative sensor usually from sensor groups 532 n 12 1 display to be the one that displays the greenhouse s temperature in the Tmp Sensor No rapid display Int Hum Hum No For Pick the most representative sensor usually from sensor groups 532 n 12 2 display to be the one that displays the greenhouse s humidity in the Hum Sensor No rapid display Int Rad Gen No If the greenhouse is equipped with an internal radiation sensor 532 n 12 3 Rad Sensor Gen No which is defined in the General sensors table type the sensor number here Int
30. e change in consumption on the 2 operate time because automatic PID can only reduce that value and not increase it 2 The diversion of the sampled CO2 value from the 532 n 542 requested value change the Operate 1 time decrease and Wait time increase When changes must be performed the reduction 532 n 542 is by the value entered here and will not be reduced again before a new sampling cycle occurs The limit of correction 532 n 542 3 When changes must be performed the wait time 532 n 542 is added to the value entered here and will not 4 be increased again before a sampling cycle occurs The limit of correction 532 n 542 HS MEN At such a wind level CO process will no longer be 532 n 552 effective in some greenhouses because of air 1 vibrations and perhaps a vacuum process Earlier than this time radiation readings will not 532 n 552 effect the process 2 Different from lt operate temp diff gt Here the 532 n 552 3 4 process is stopped and OWD is ignored if temperature is over user definition The limit of correction 532 n 552 Give priority to certain cooling process over the 532 n 552 CO2 process 5 o U Page 43 CO Scanner A high quality CO sensor with accuracy of up to 30 PPM is an expansive device The scanner module in Elgal 2000 enables you to use one sensor in a site of up to 10 different greenhouse chambers The physical device is a simple
31. ectly operated components we also introduce Processes A process is when several components are combined in a program to influence a factor in the greenhouse The engagement between a process and components is mostly flexible Components may participate one or more processes or be idle When a component participates in a process the process overrides its direct control Process Appearances Major participants Mare participants Cyclic ventilation 4 Fans Windows Circulators Special ventilation 4 Fans Windows Circulators Heating 4 Heating devices Windows Cooling 4 Cooling devices Fans Windows CO enrichment 4 CO generators Windows Spray 4 Foggers Circulators Windows The processes will be widely described in the chapter of the leading component First step Greenhouse Setup Before starting to program greenhouse components several actions should be taken that affect the entire greenhouse As you will learn some effect all greenhouses in the controller meteorology setting and sensor linking setting sensors groups of a specific greenhouse and finally link these sensors up to now a controller s property to each one of the greenhouse components and processes Page 3 Meteorology Setting The program uses methods that enable more balanced work with wind speed and direction Although sensor values may change rapidly changes inside greenhouses must be more moderate It takes time
32. een 532 n 83 free output and ventilation processes The options are 6 lt No change gt lt Operate gt and lt Stop gt No change 532 n 82 leaves the free output as it was when the ventilation 6 process activates Operate option makes a stopped one operates and the Stop option stop an operated output Page 52
33. ensor value to operate above Gen Diff To stop The differential in degrees refer to the above 532 n 3212 7 Gen sensor diff to stop Operate time min Related fans and windows will be activated for the set time 532 n 3212 8 Work time minutes in minutes while process is on Control over related fans and windows returned to other 532 n 3212 9 Page 19 Wait time minutes processes or direct control for the set time Wait timer on countdown if process is on Minimum operate time min When related fans and windows are operated they will 532 n 3212 Minimum work time operate for at least the set time even if conditions no longer 10 minutes demand it Stop conditions and priorities Low int temp below Stop the process when the greenhouse 532 n 3213 Int low temp to stop internal temperature drops below the set 1 below value Low ext tmp Below Stop the process when the external temperature 532 n 3213 2 External low tmp To stop drops below the set value a Stop at cool No Give priority to the specified cooling process 532 n 3213 3 Stop during cool no 0 1234 Stop at spray No Disable process on the specified spray time 532 n 3213 4 Stop during spray process No 0 1234 Stop at CO2 No Disable process on the specified CO2 time Else 532 n 3213 5 Stop during CO2 process No they are activated together unless maximum window level in CO2 running process set 0 In that case the cyclic v
34. ensors The values you set here differ from the alarm values you have set during sensor definition The values you set there were values that indicate a sensor fault Now you have to set the value in actual units degrees percentages or any other unit When a Page 7 sensor reaches this value it indicates a problem in the greenhouse and should activate an alarm Alarm by discrete input This alarm type indicates a failure in a device in the greenhouse The device you want to be alerted on trip must be equipped with a dry contact that closes on trip If the contact is connected to one of the discrete inputs it can be used to activate an alarm Alarm by controller The program continually scans the memory area and checks data integrity If an error is encountered the system operator is alerted Low tmp below Sets off an alarm when the temperature sensor s 532 n 142 10 or value drops below a set point 1 vertical higher 1 10 High tmp Above Sets off an alarm when the temperature sensor s aed 40 or value rises above a set point lower cae 1 10 Alarm No when Alarm No in controller the digit to the left of the a 142 2 1 dot In a PC the digit to the left of the slash If an Warning alarm output and device were assigned to a come 1 10 Set 0 to the climate alarm write the number of that output If right of the no output was assigned you can leave it zero In slash to this case the alarm will be displayed
35. entilation will be voided Adjust wait time wait time and work time can be automatically modified by program due to external temperature High ext temp above Start to reduce the process cycle intervals due to 532 n 3211 1 External high temp above external temperature Dec wait time mnt The set value will be decreased from wait time 532 n 3211 2 Decrease wait time minutes once if external temperature is above the previous parameter at the on time start Else pre decreased wait time will return to original set Low ext temp below Start to enlarge the process cycle intervals due to 532 n 3211 3 External low temp below external temperature Inc wait time min The set value will be added to wait time once if 532 n 3211 4 Increase wait time minutes external temperature is above the previous parameter at the on time start Else pre increased wait time will return to its original set Operate on heating failure An active process can have cycle time change due to heating system failure Fault input No A discrete input that indicates a failure in the 532 n 3214 Heat fail failure input heating system 1 No 0 10 Tmp To oper Below Second necessary condition for cycle change if 532 n 3214 2 Low internal temp to operate the temperature drops down k Tmp To stop below Third necessary condition the temperature should 532 n 3214 3 Very low internal temp to not be
36. er the greenhouse safely This is the Ventilation After Spray Oper Time mnt The time before the spray process hour for hall before fogging operating the fans u To stop below Indicates that the function is no longer necessary ea 10 100 Low temp to stop Attention Due to a programming mistake the vent below decimal point is missing in the controller Write 5 100 to stop ventilation at 10 degrees Wait for vent mnt A delay if needed to provide time for the OT Vent delay after chemical action before starting ventilation 1 fogging mnt Oper Time mnt The estimated time needed to clear the air 532 n 64 Vent after fogging 2 min Page 49 Chapter 9 Free Output Air Circulators General outputs are powerful tools for almost anything you reguire in a greenhouse and can t get from all other ordinary components They can be operated based on time schedules temperature humidity or external inputs such as radiation or wind speed meters You can switch all greenhouses to a different power source based on a reading on an Ampere meter You can set it to operate constantly or intermittent In addition you can bind a general output to any other process in a positive or negative way This mean that every process can make it work or stop it or leave it as it is all based on your settings The most common use for general output is Internal air circulators This is also the only case in which a general output is
37. erature to supply the reguired heat capacity Set limits of the lowest by default the reguired air temperature and the highest temperature according to the pumps and pipes manufacturers specifications Water temp set point delay sec k Set to 60 120 seconds Air temp set point fine tuning boundary Set a limit of acceptable deviation which within the system will not make any corrections target range High air temp deviation from set point for heat pause Set a fault situation indicator based on the required air temperature which indicates a fault in the valve s response and stops the circulating pump Note that frequent activation of this function in daytime may disturb the automation It is recommended to set a fairly high value 15 or more High external radiation to pause The current version has the new method of referring to external radiation on the basic calculation Set this parameter to 0 heating Minimum water Set the snow melt circle the top circle to limit the minimum water temperature temp snow when snowing to a temperature that will surely obtain snow melting condition Heating percent All active heating circles must complete to 100 Divide the circles according of greenhouse to their size or relative influence on the entire greenhouse Snow heating percent of greenhouse When the system detects snow it must activate a di
38. et down and greenhouse will return to its original Point to Stop Process setting Max Stage low hum When the greenhouse status is set as Low Humidity 532 n 2222 1 Max Level at Low based on the segment s definition the window will Humidity not be allowed to open more than this stage Note Fans will not operate when all windows are closed except of vacuum process strong wind Note Ventilation processes can operate even if no fans exist at all In this case these processes will only effect windows Page 15 Chapter 3 Fans operation and ventilation processes General In most greenhouses were fans are installed there are more fans then the system can control Therefore the fans are electrically divided to few groups not more then 4 Each group operated by a single output When we refer to fans we generally mean a group that is operated by a defined output Important note Fans can not operate if there is no correlated window opened in the greenhouse In case your greenhouse doesn t have automatic windows or the windows you have does not suppose to open with the fan you must define a virtual window with outputs definition and set it to open with fans code 5322 n 4 1 and 2 3 gt 0 The only direct programming for the fans is day and night temperature We create a type of Participation Table where we create a linkage between the fan and a process Example Fans No 1 and 3 operate with co
39. example writing 13 in group 2 will cause that group stop whenever spray 1 or spray 3 are running Create a stop condition of the marked CO2 process over the fans group For example writing 13 in group 2 will cause that group stop whenever CO2 process 1 or 3 are running A possibility to engage to a discrete input that indicates that the fan is in fault 532 n 3121 3 532 n 3121 4 532 n 3122 1 532 n 3122 2 532 n 3122 3 Page 18 Cyclic ventilation humidity extraction process Humidity extraction process is based on fans operating and opening the opposite side window for directed air flow inside the greenhouse and out Therefor as operator you will be reguired to inform the system what kind of behavior you expect from each window when venting processes are on Look in More screen in windows programming screen However humidity extracting process is unigue in the control system because it can be mounted even if there are no fans at all In that case the process will act only on windows That is the reason why you can not find any reference to humidity in windows programming screen the right place to do it is here When the process is on it is mostly set to act intermittent by the tow parameters Operate time and Wait time You must set a nonzero value in Operate time to make the process work Wait time is optional and the process will act nonstop if you leave it zero Min operate is for avoiding a very sh
40. fferent proportion of heat capacity The top gutters circle is required to produce more heat than usual and this added heat should be reduced from the other active circles Page 26 PI and coefficient correction The current version enables 2 methods of temperature balance A Slow greenhouse coefficient correction B Constant PI operation of each circle towards its air temperature In both cases the system uses the external conditions and basic greenhouse constants to do basic calculation of the required energy capacity When PI defined not active the system operates a sophisticated method to correct the given greenhouse thermal conductivity coefficient The method checks the goal achievement whenever there are no extreme changes in the external conditions If the external and internal conditions weren t changed in an extreme manner and still there is a gap between the required and the current greenhouse temperature the system will calculate the mistake and change the greenhouse coefficient When Pl is activated the system is constantly measuring the difference between the required and the current greenhouse temperature The PI output is the required correction in air temperature and you have to give a multiplier to determine the exponent in water temperature The PI parameters for each heating circle are Air temp stability Set a timer to check the internal temperature stability The proposed check time
41. ge of decrease of the required air temperature hence Page 25 S P 1 K of water heating capacity for every degree that is required to increase for returning water temperature Recommended value 0 3 Max temp decrement Set the maximum decrement from the originally required air temperature for the cycle Return water S P to Set water temperature which from this point and under the 4 way valve close 4 w valve below will only do inner circulation Note that there will be no heating at this point and lower Hot water valves calibration Set a time preferable mid day and a cycle 24 hours to perform valves calibration At valve calibration the controller drives the valve full time forwards and backwards and then back to its current required position This action is required to eliminate a situation where the controller is not synchronized with the actual valves position and for simple maintenance lubrication Circles setup Refer to air temperature sensor No Define a sensor from the temperature sensors table or a group of sensors to monitor the performances of the cycle and set corrections to its capacity if necessary This will generally be the greenhouse temperature group or the sensor at the section above the specific circle Min water temp Max water temp The control system will drive the 3 way or 4 way valve to provide the reguired water temp
42. hd SHI I HAI AI OS OV OS OV AIS 01V 01V 01V 01V VV 01V 01V SV VOV SOV AIN 01V V 01 AIS V V 11V 01V VV VVS AIN 21V AIS V VOV VOV ys ASIS oer s Malate alte Pal Pa te sal ote s t Pe al ote cal Pal Pe al ote Pal Pe Pe Pal Pe Pal Pa ste Pal ste Pal sta otal Pal ote A A Pal ste cal Pal ste sal sta 09 Ax VIVAL GIS GIL GIL GIL GIR GIL GIN GIL GIS GIN GIN GIS GIN GIR GIS GIR GIS GIR GIR GIS GIN GIN GIN GIS GIR GIR GIL GIR GIR GING SSA US OR OR ORT OR OR OR AN OR ORT OR OR OR OR OR ORT ORT ORT OR OR OR ORT ORT OR OR OR OR OR OR A D Copyrights for Eldar Shany 5 cO y 3 g T O X 5 N 3 D S S 8 3 g M 2 lt D YX U O God m o a NI 5 8 me C E A TE i E O N LU 3 5 c 5 O QV o N m S p E O na UL O UIA LIA IA LILA IA IA IANA LA DV LA IAIA IA IA IA LA IA IA ILA DV DU IA IA IA IA LA LA DC DU A DU PAN IAS RS RS AS PS RAS RS RS RAS RS RS RS AS RS RS RS RS RS RS RAS AS RAS 1 8 1 8 RS MS 19 8 2 2 19 8 119 3 12 8 pe e a a a a a a a a a e a a a a a a a a e eee Nr Pe IN IATA AAA AA A19 419419 419419 19 419 01919 19 A 19 419419419 19 A19 19419419419 019 419 41941919419 419 41941919 419419 319819 419 419419 419419519 4 Page2 Galileo Climate control Index INTRODUCTION igsscsiisescessssossncsssuss ccdesseses iedbcesscsecsssuetess ved n ns eds suasbetetansdeeesecsdssesocssseastecesoustsstssesecedesseses tes 3 FIRST STEP G
43. indow operates Sensor from the Humidity sensors table or the Sensor 532 n 253 2 groups table based on which the window operates If the window equipped with a potentiometer that 532 n 253 3 indicates its position list that sensor in the General sensors table and fill in its number in the table here The value received from the window s potentiometer 532 n 26 1 when the window is fully opened function is not Page 11 G sns diff for Alarm Status Sensor Differ for Alarm Start adjust time Windows Calibration Start Hour End Adjust Time Windows Calibration Stop Hour Adjust Cycle Mnt Windows Calibration Cycle Minutes Diversion from expected value that sets off an alarm and performs window calibration once an hour In windows in which a potentiometer sensor is not used in most cases the controller does not have actual information about the current position stage of the window The controller s assumption regarding the current position is based on the actions it has performed since the last closed position However manual actions or unperformed actions due to a power cut down or motor fail are not listed In such cases we recommend execution of a Window adjustment at least twice a day When a window adjustment action is performed the window goes all the way down and then climbs back up to the required position To set two adjustment sessions between 12 00 and 19 00 enter 400
44. ing Start time 1 End time 2 device at all simply because it reduces chamber volume Roll delay SEC At the end of the night it is common to find high 532 n 74 Delay bet Roll up humidity caged above the screen while below the 3 pulses at the end of screen the temperature is high and the humidity is proc SEC low Opening the screen at normal speed might cause dew on the leaves This parameter enables you to set a spatial delay to prevent damage Page 38 Chapter 7 CO Enrichment Enriching the greenhouse space with CO is widely used for improving agricultural results While photosynthesize the plant consume CO The natural concentration of CO In the air is around 450 PPM Parts Per Million Most crops would get benefit if we raise the concentration to 800 PPM consult your Agronomist about the exact rate The devices that commonly used divided to cold or hot applying Cold applying is simply a valve that let vaporized CO Flow in The hot device is a CO generator The CO obtained by burning condensed carbonate gas while providing the proper rate of Oxygen That gas applied either directly or through heat exchanger The CO process is the most complex process in the climate control scheme since it must respond to many environmental conditions The correct amount of CO that can be consumed by the plant variate according to the radiation and the age of the plant During the process we must deal with side effects such a
45. ing This is the main setting table of the most basic greenhouse component yet it is surprisingly simple In most greenhouses all you will need to do is set the day temperature night temperature and the differential Note that most of the time greenhouse windows will act as slaves of processes Windows will operate based on the values in this table only when no process is active Temp to Open Day Day Open Temp Above The temperature for opening the window during daytime see controller setup for day and night definition code 511 2 3 532 n 23 1 Diff to Close Day Day Diff to Close The differential for balancing window operation during the day 532 n 23 42 Temp to Open Night Night Open Temp Above The temperature for opening the window at nighttime see controller setup for day and night definition code 511 2 3 532 n 23 3 Diff to Close Night Night Diff to Close The differential for balancing window operation at night 532 n 23 4 Temp to Open 1 223 An option for defining spatial temperature settings for up to 3 day segments Defining day segments in controller code 532 n 221 and in PC is performed in this window 532 n 23 5 7 9 Diff to Close 1 3 The differential for balancing the window during the day segment 532 n 23 6 8 10 Start Time Day segment n start time 532 n 221 1 End Time Day segment
46. ion in W m according to the greenhouse EC snoyu 19 Divide the required heat production to 4 circles Calculation of the circle s heat production ability per 1 difference according to the total pipes surface and the pipes thermal conductivity constant Average calculation of the 4 circles by their relative Required air temperature Calculation of the circle s average water temperature ECT Calculation of the circle s PI correction of required water ae temperature by error between required inlet water required and read air temperature Page 31 Chapter 5 Cooling Misting Two major cooling devices are common in greenhouses one is a wet pad mounted on one of the greenhouse s wall Wet pad operation must be connected to fans and windows to ensure directed airflow The second cooling device is a system of sprinklers or water jets mounted above the plants Regardless of the device the function is always temperature reduction When opening windows laying screens or operating fans are not enough to reduce the temperature the cooling process is used for this purpose To avoid confusion with the misting function in the irrigation system we shell refer to this function as Cooling and the module in the irrigation system will be referred to a Misting Your cooling device will be defined as misting in the irrigation system if it depends on the watering main system reguired operation of water pumps
47. lt eeeee20eee0 090090900 rare 52 Page2 Introduction The subject of this manual is Eldar Shany software for Climate Control in greenhouses This software is one of few applications that can be applied with Galileo and Elgal controller The installation and basic operation of the Galileo is widely discussed in the manual Galileo Setup It is essential to study the Galileo Setup manual and follow its instructions during the installation process Some parts of the current manual refer to the Setup manual and will be difficult to understand without this background One Galileo controller can have two or four appearances of this software hence operate two or four fully facilitated greenhouses We call those appearances Systems Most of the controlled components and processes have several appearances in a system The table below describes the possible numbers of each component Components Appearances Remark Windows Vents 10 Roof Included Duplication voided Thermal Shading screen Duplication voided Side wall fans Fans are often electrically grouped Duplication permitted Cooling device Duplication permitted Heating devices Direct ON OFF Duplication permitted Hot water circles 3 way valve pump CO enrichment devices Duplication permitted Sprayers Foggers Duplication permitted a A A A APA At Free auxiliaries Used mostly as air circulators Besides dir
48. lue registers in the CO scanner points table and saved there until the next read received or until midnight see memory initialization in Galileo Setup Engaging the results of the samples to the corresponding greenhouse Local greenhouses Greenhouse in another controller Greenhouses on the controller that hosts The value must be transferred via the the scanner can read the CO points from communication table in the PC Read the general sensors table in numbers 71 to instructions of sensors Selling and 80 Set the accordingly point as the Buying in chapter 5 of the Elgal Setup greenhouse s CO sensor code 532 n 551 manual book F3 For instance A local greenhouse that represented through the third point set 73 in CO sensor general sensor No Page 45 Chapter 8 Spray Process The spray process is different from all other greenhouse processes since it is not activated as a result of any readable value and also not defined for a certain time every day but specifically programmed to perform a one time task whenever the operator decide it is necessary However when spaying is reguested the operator must always examine internal and external conditions bring windows to desired state stop or suspend other processes operate circulators etc Therefore spraying is a process and not a single output operating program Spray Process Envelope Method is valid when date set on
49. n 0 en ne nn 41 MAJOR CO PROCESS PROGRAMMING ssssssssecececsesssececececsesssaececccecsessauececececseseaeseeececeeneaesecececsenensaaeees 42 STOP AND DELAY CONDITIONS wis ccicscsesccscscsccsscssesceses cassesvesntcescsssuvcededvesessessuedecstcesessacctecsdebcesvasecceccesvscescdee 42 COs OUTPUT OPERA TION siciliano 43 COR CONSTONIS an e E PR ciclo 43 COs SGANNER A NN 44 CO SCANNER SETUP Soi 44 DE do ts 44 Engaging the results of the samples to the corresponding greenhouse een 45 CHAPTER SPRAY PROCESS i issidessissssssssstcdessissessvsesscdesssesssseseess sansieessevs sdosacedsesnscetsbensdasdesvessssanseeesiees 46 SPRAY PROCESS ENVELOPE 0 aiii 46 SPRAY CHART ii talas aaa 47 SPRAY EU tooo 47 SPRAY PROGRAMMING i 48 Process Envelope riiete ei a EE E E EREE a ad ad a aaa 48 STOP CONDETIONS a EAEE EEE A EEE E EE E E OE EEE E E ET A 48 CHAPTER 9 FREE OUTPUT AIR CIRCULATORS seeesseoesssesssooecssooeesseoescoecssooeesseceesseesssoesssooeessesee 50 FREBOUTPUT ST N E AAE E AEE E E A E E T EER 50 FREE OUTPUT PROGRAMMING cssscccccscecsesssececececeesssaeceeececsesssaeseeececseseaaeeeeececsessaeeeeececeeseseseeececsenetaaeees 51 ACTIVATION BY OTHER PROCESSES OR COMPONENTS sssssssccecsessssscecececeesensececeecesesenseseeeeseeesenseaeeeeeceeeenees 51 Enforcing the free outputs due tO OCCASIONS c cccccesccssecsseescnsenseeecuseescuceeseesecesseceeesceaeeseesecseeeseeeeenaeete 51 Avoiding the free outputs due lO OCCASIONS
50. ndoubted influences the inner temperature in a way that requires a change in water temperature of more than 2 C Recommended value 30 W m Main circle In a large scale project where one center of boilers serves many greenhouses other controller will probably conduct the general heat management However we enable you to control one server circle in each greenhouse This server circle may control the main circle of the entire project or just a local circle that takes the water from the main circle and serves the other circles in the greenhouse Set the additional temperature from the highest required water temperature between the 4 circles Page 29 Greenhouse temperature control 2 04P7 heating program enables you to set 2 overriding day segments for different required temperatures These segments override the basic day or night temperatures that must be set The shifting between day and night and to and from a segment can be gradated Although this version enables to set reguired temperature to each circle separately we recommend not to do so unless it really makes sense In most cases the temperature in one chamber is the same Setting a different temperature to circles may cause difficulty balancing the greenhouse if there is even the smallest co influence Daytime air temperature set point Set the reguired temperature in daytime according to day and night setting in the controller setup Gradual
51. oling process No 1 and fans 2 and 4 operate with cooling process No 2 The same is true for all other processes Basic fans operation chart Act by process Is there Is fan any engaged to process that on process temperature above setnoint Page 16 Fan active Y N Fan active Y N Operate at wind stage Choosing NO makes the fan inactive 532 n 313 1 532 n 313 42 m When the wind speed reach this level fans group Wind level to operate fan for will operate to make greenhouse cover and keep it vacuum from tear off The temperature sensor that this fans group refers 532 n 313 3 E to Humidity sensor No The humidity sensor that this fans group refers to 532 n 313 4 The general sensor in any that this fans group 532 n 313 5 s refers to Fans operation for reducing temperature and at cooling Operate temperature at day The temperature to start fans group when no 532 n 3111 1 Day oper Temp above process is active Diff to stop day A differential to balance the fan operation 532 n 3111 2 Day temp diff to stop F a i N Night oper Temp above process active Diff to stop night Night temp diff to stop Operate at cool No Oper During cool proc No 0000 1234 Operate temperature at cool Operate Temp during cooling above Temp Diff to stop temp diff to stop During cooling Diff EXT gt INT above Temp diff external
52. on the neutralize controller s LCD and on the PC screen if exist the alarm only When in controller the digit to the right of the dot In a PC the digit to the right of the slash This also refers to real output activation only Write lt 1 gt to be alerted day and night lt 2 gt for night alerts lt 3 gt for day alerts and lt 0 gt to prevent that sensor from alerting you any time Low Hum below Sets off an alarm when the Humidity sensor s value 532 n 143 10 drops below a set point 1 vertical 1 10 High Hum Above Set alarm when the o S TS sensor s value rises 100 above that set o S TS a 1 10 Alarm No when Alarm No in controller the digit to the left of the a 143 2 1 dot In a PC the digit to the left of the slash If an Warming alarm output and device were assigned to a tal 1 10 Set 0 to the climate alarm write the number of that output If right of the no output was assigned you can leave it zero In slash to this case the alarm will be displayed on the neutralize controller s LCD and on the PC screen if exist the alarm only When in controller the digit to the right of the dot In a PC the digit to the right of the slash This also refers to real output activation only Write lt 1 gt to be alerted day and night lt 2 gt for night alerts lt 3 gt for day alerts and lt 0 gt to prevent that sensor from alerting you any time Page 8 Low Gen below High Gen
53. or must stop irrigation though In any other case defining it as a cooling device within the climate system provides you with a much larger variety of operation options COOLING IS OFF Cooling Operatio Is current time in cooling time Is temp What is Is temp over set the over set point OR conditions point AND hum under reference hum under set point set point Any stop conditions Page 32 Cooling Setup it 1234 device of the digits 1 4 it Oper Tmp Sensor No A temperature sensor from the Temperature 532 n 94 Greenhouse Temp sensor to Sensors table referred to for process operation Sensors group Opr Cool combination The link between the process and the related 532 n 94 Any Oper Cool No 0 cooling outputs the output that operates the combination operate the process stops when the sensor reading is lower than the set point 1 2 Oper Hum Sensor A humidity sensor from the Humidity Sensors table 532 n 94 No referred to for process operation the process stops 3 Hum Sensor to when the sensor reading is higher than the set operate point 4 It is possible to refer to another sensor such as an Temp sensor to stop outdoor sensor for stopping conditions H Hum Sensor to stop 5 Cooling Programming Start time Start cooling time HH MM 532 n 91 Start time 1 End time End cooling time HH MM 532 n 91 16 End time 2 Tmp To o
54. ort pulse in case of process termination shortly after act start The columns are different processes which can be engaged to different fans an windows or to the same ones for achieving different levels of humidity in different hours Cyclic ventilation setup Tmp Tmp Sns No Reference to temperature sensor from 532 n 3215 1 Temperature sensor temperature sensors table or group to operate by Hum Tmp Sns No Reference to humidity sensor from humidity 532 n 3215 2 Humidity sensor sensors table or group to operate by Reference to general sensor from general sensors ca E General sensor table or group to operate by Operate cyclic ventilation process Start time Process start time 532 n 3212 1 Cyclic vent start time Cyclic vent end time Hum To operate above The humidity set point to operate the process within the 532 n 3212 3 85 High humidity to operate time boundaries above Humidity diff to stop The differential in relational humidity percentage the 532 n 3212 4 5 Hum diff To stop process stop if the humidity drops below the operate set point at that value Example if operate S P is 85 and the differential is 5 the process vil operate at RH of 85 and stop at 80 a Gen Sns To oper Below Possibility of reference to the general sensor you can set 532 n 3212 5 Low gen Sonsor value to only one of the tow parameters oper below Gen Sns To oper Above 532 n 3212 6 High Gen S
55. pening 1 Level sec Oper Delay sec Window Operations Delay sec Up wind from deg Wind Direction from 0 360 Up wind to deg Wind Direction until 0 360 Temp Sensor No Hum Sensor No Gen Sensor No G sns at Full Open Status Sensor Value at Max Opening The time measured for full motor opening after adjustment of the upper and lower limit switches Full opening can be divided into up to 10 fractions stages A delay is set after each move In some greenhouses the first opening stage partly overlaps the lower fixed part of the wall For that stage only a spatial stroke time can be given The time remaining from the time defined in the previous parameter is divided equally between the other defined stages A delay that is set after each window move up or down to give time for the sensors to sense the effect of the move This is the major balance of the greenhouse which every operator has to study his own characteristics The delay is sometime canceled or reduced by the program due to spatial conditions The direction of the window is a set at 2 azimuths 532 n 252 1 indicated as From and To It is common to set a This spectrum of 180 degrees of the effecting side of wind However a smaller spectrum is acceptable all 532 n 252 2 according to the greenhouse s structure Sensor from the Temperature sensors table or the 532 n 253 1 Sensor groups table based on which the w
56. per above The temperature set point for activating the cooling 532 n 91 16 High temp to process 3 operate above Tmp Diff To stop The differential in centigrade for stopping the 532 n 91 Temp diff to stop process 4 Hum To oper The relational humidity for operating the process 532 n 91 below 5 Low Humidity to operate below Hum Diff To stop The differential in RH percents for stopping the 532 n 91 Hum Diff to stop process 6 Cool conditions Use the Select button to choose the suitable mode 532 n 91 Operate condition of operation 7 No conditions operate by time only Does not refer to sensors 1 condition within time boundaries it is enough that either temperature or humidity condition will set the process to have it operate Use this method if you want the cooling process to function when humidity increases even if the temperature is not high 2 conditions Within time boundaries both temperature and humidity must set the process to have it operate Use this method if you want high humidity to stop the cooling condition Page 33 Stop Conditions Even when you set the process to act by time only or ignore one or more of the parameter in the table above you can still set some conditions for stopping the process If necessary you can even refer to different sensors for this purpose Tmp To stop below Low temp to stop below Hum to stop above Hum To stop above Very high tmp
57. plained above Options are Average Lower Higher Differ Hum Sensor No Pick a sensor from the Humidity sensors table to be the first 5132 2 Hum Sensor No participant in the group Hum Sensor No Pick a sensor from the Humidity sensors table to be the second 5132 3 Hum Sensor No participant in the group Hum Sensor No Pick a sensor from the Humidity sensors table to be the 3rd 5132 4 Hum Sensor No participant in the group Bm see puting Hum Sensor No participant in the group Sns Group type Use the Select button to pick the type of group you want as 5133 1 Average Set group type explained above Options are Average Lower Higher Differ Gen Sensor No Pick a sensor from the General sensors table to be the first 5133 2 Gen Sensor No participant in the group Gen Sensor No Pick a sensor from the General sensors table to be the second 5133 3 Gen Sensor No participant in the group Gen Sensor No Pick a sensor from the General sensors table to be the 3rd 5133 4 Gen Sensor No participant in the group lcasowns petting LL Gen Sensor No participant in the group Page 5 Constant Greenhouse Settings Defining the system number used by the greenhouse when its data is saved on the PC the time interval for recording data on the PC and whether the greenhouse is active or not are all important actions that we recommend you perform after setting all other components and processes From here PC users can ac
58. ring fan operation No 0 1234 Atheat oper No During Heat oper No 0 1234 At spray proc No During spray oper No 0 1234 At CO2 proc No During CO2 proc No 0 1234 At cool proc No During cool oper No 0 1234 At vent process You can enter the same parameter from 2 places in the controller An operation link between fans group and free output For example writing 14 here will make the free output operate whenever fan groups no or and 4 are on An operation link between the heating process and free output For example writing 14 here will make the free output operate whenever heating process no or and 4 are active An operation link between the spray process and free output For example writing 24 here will make the free output operate when spray process 2 or and 4 are on An operation link between the CO2 process and free output For example writing 24 here will make the free output operate when CO2 process 2 or and 4 are on An operation link between the cooling process and free output For example writing 24 here will make the free output operate when cooling process 2 or and 4 are on Use the Select button to set the dependency between free output and ventilation processes The options are lt No change gt lt Operate gt and lt Stop gt No change leaves the free output as it was when the ventilation process is activated Operate causes operation of
59. rved for temperature sensors Defining the above will cause data to appear in the first 4 columns and leave all the other columns blank Otherwise of you leave the default setting you will find data from another greenhouse or simply see some columns showing 9999 since no sensors are assigned to the columns According to our concept here too you can define a division for the Temperature sensors list Humidity sensors list and General sensors list The entered numbers are from the Clim Tmp For info Fill the sensor numbers from the Temperature sensors table in 532 n 131 1 2x external the order you want them to be shows in the information file vertical 1 10 controller s list of Temperature Humidity and General sensors Fill the sensor numbers from the Humidity sensors table in the order you want them to be shown in the information file vertical 1 10 Clim Gen For info Fill the sensors numbers from the General sensors table in the 532 n 133 1 order you want them to be shown in the information file vertical 1 10 Greenhouse Alarms Three types of greenhouse alarms are available alarms by sensors alarms by discrete inputs and controller alarms which are not directly related to the greenhouse but to general faults that may occur in the controller Alarm by sensor The sensors you set to receive an alarm from are the same sensors and in the same order as those you chose for information in the previous menu Information s
60. s increasing greenhouse temperature and humidity Page 39 Process flow chart Conditions that may stop the process if defined by user High outdoor temp High outdoor radiation Defined Cooling process turned ON Temp has stopped co2 device but hasn t changed for longer then Radiation is lower then set point for longer then OWD only after defined hour Wind grade is as defined or higher If process stopped over Humidity windows will be opened immediately Are there any other stopping See frame above Is current No time between start time and end time Yes Is temperature below Operate Temn 9 Humidity stops process only after Hum Delay annoa A Is humidity below Hum to stop Page 40 CO2 DEVICE OPERATION FLOW CHART Only when process is ON Is CO value below operate value Is temperature below operate value Interval State ON Page 41 Major CO Process Programming Start time The process will not set on if the hour is earlier 532 n 51 Process operation then the hour the user defined 1 hour End time The process will stop when the controller clock 532 n 51 Process stop hour reaches this hour 2 Temperature to start The process can not start above this temperature 532 n 51 30 Process operation 3 temp Dif To stop outp CO2 device stops when temperature is above
61. s to predict a coming 532 n 53 High external greenhouse temperature rise to a higher 1 temperature temperature by reading the external temperature High ext rad above The goal of this parameter is to predict a coming 532 n 53 High external greenhouse temperature rise to a high temperature 2 by reading the external radiation radiation Page 42 Operate time sec Output work time sec Wait time sec Output wait time sec PPM diff For setup Enrichment diff To change cycle Decrease opera 100P Decrease work time Min Oper Time sec Minimum work time Inc Wait time 100 Increase wait time Max wait time sec Maximum wait time sec CO constants Wind lvl to stop High wind level to stop process Refer to rad from Reference to radiation from hour Critic temp High critic temperature Restart delay minute Restart process delay Stop in cool No Stop in misting process No CO Output Operation In systems with an on line sensor without scanner any non zero value in work time is 532 n 541 Non zero 1 not null good and the wait time can remain zero When working with a scanner you must first find 532 n 541 the approximate proportion between operate time and wait time which is unique to every greenhouse and depends on the greenhouse volume enrichment method warm or cold gas and the plants stage We recommend calculation of a factor of 10 30 for futur
62. ssssecececsesssseceeececsesssaececcceceessaeceeececsessaeeeceeecseseeseeececsenensaaeees 30 ELOWCHAR RA ERE EE E TEE EEES AET P EIEE ESE A E EIE E ESE AE REETTA 31 CHAPTER 5 COOLING MISTING ssssssssssssssssscssssssecssssscecssssesecsassceacsassccncasscseceassccacsasscsacsees 32 COOLING OPERATION CHART dd Eit 32 Cooling Setup ona A as A B od ab R EE Id dentes 33 Cooling Programming kos seston on A kok ha hee cole Cusku Cheek cde dete ily eck ala on shes 33 Stop Conditions A A oka taco tat A BE deta eevee A E 34 Pulsing Programming a os 35 CHAPTER 6 THERMAL SCREEN Wassiscccscssseccsesssesesevsnsseseeccacsnuavevesensscdesevacsssccdssonsveoesevnesduuccvosvenscvesteus 36 THERMAL SCREEN SETUP cccsssessssececececsesscaecececscseaaececececseaaececececseseaaececececsessaaeeeeececsessaaeaeeeceesesenseaeees 36 LAY FOR NAAA 37 Page 1 LAY BY TIME ROLL BY TIME s lt iaseccice vessel on e Aa et 37 SCREEN ROLL UP DURING PROCESS cccccsessssscecececeessnsececececsessscaecececseseaaecececeesesaaececeesesenssaeeeeeceesensea 38 LAY SCREEN TO PRESERVE HEAT ccecssssssececececsesscaececececsescsececececsessaaececececsessaaeeeeececsessaeaeeececsensneaeees 38 CHAPTER 7 CO gt ENRICHMEN vssssicsescssestscesssseisvssnsiecssvessetescessscaiessssteee sadesevsectesessessvsssssssasecsssdescsieee 39 PROCESS flowchart E A a ae ages 40 CO DEVICE OPERATION FLOW CHART eee rinaire riia 40 CO2 DEVICE OPERATION FLOW CHART eee 00000000
63. t lt 2 gt for night alerts lt 3 gt for day alerts and lt 0 gt to prevent that sensor from alerting you any time Page 9 532 n 144 1 vertical 1 10 532 n 144 2 vertical 1 10 532 n 144 3 vertical 1 10 532 n 145 1 vertical 1 10 Mark only the inputs that are relevant to the current greenhouse 2 1 Warning Set 0 to the right of the slash to neutralize the alarm Chapter 2 Windows Windows or curtains in previous systems are the most fundamental component of a greenhouse They are members of the staged family Their static position can be set at any stage Elgal software version 2 04 enables constructing of up to10 windows in each greenhouse chamber including roof windows Window in static position Under active process Temperature exceeds window program boundaries Several processes effect windows Some processes effect all windows and others only effect those they are set to respond to The following tables describe the effect of each process on greenhouse windows where the red arrow indicates the direction closing or opening and blue spot indicated that all windows are effected by the process Page 10 Windows setup Text in PLC Description PLC code Text in PC 532 n 251 1 im 532 n 251 2 IM 532 n 251 43 532 n 251 4 Motor Oper Time Full Window Operating Time sec No of Wndw Stages Level No for Full Opening 1 st stg Time sec Time for O
64. ther conditions as long as the selected process is on The combination lt 1234 gt is a link between the screen and all 4 possible processes for instance spray process 1 2 3 and 4 of one kind At spray proc No Roll due to spray process 532 n 75 1 Roll up during spray proc No 0 1234 At CO2 proc No Roll due to CO2 process 532 n 75 2 Roll up during CO2 proc NO 0 1234 At vent Process Option controlled by the Select key Selecting Yes will cause 532 n 75 3 Roll up during vent process the screen to roll on all cyclic and spatial ventilation process Yes No At fan operation In some greenhouses the screen is installed in such a way that it 532 n 71 4 Roll up during fans may be damaged by fan operation when it is laid Marking a fan operation 0 1234 group will result in screen rolling even when fans are operated by a process At wind level above This spatial feature is for screens that are installed outside 532 n 71 5 0 non Roll up during high wind greenhouse chambers usually above the roof It this case you level above 0 5 may want to roll it to protect it from tear off Cond Delay sec That delay timer is set whenever the screen moves due to 532 n 71 6 Delay before screen status conditions change sec Lay Screen to Preserve Heat laying the screen at night can help save heating energy Despite its name this function is totally independent of the heating process It can be useful even if there is no heat
65. tilation process 1 and 2 Writing 24 in group 3 column will indicate fans group 3 to participate in cyclic ventilation process 2 and 4 Creates the linkage between each fans group and each spatial ventilation process For example writing 12 in group 1 column will indicate fans group 1 to participate in spatial ventilation process 532 n 3121 1 E 532 n 3121 2 M Page 17 Before spray No Operate during vent before spray No 0 1234 After spray No Operate during vent after spray No 0 1234 Fans stop conditions At spray process Stop during spray process No 0 1234 At CO2 process No Stop during CO2 process No 0 1234 Fault input No Fault input No to stop fan operation 1 and 2 Writing 24 in group 3 column will indicate fans group 3 to participate in spatial ventilation process 2 and 4 Creates the linkage between each fans group and each spray process For example writing 12 in group 1 column will indicate fans group 1 to participate in spray process 1 and 2 Writing 24 in group 3 column will indicate fans group 3 to participate in spray process 2 and 4 Creates the linkage between each fans group and each spray process For example writing 12 in group 1 column will indicate fans group 1 to participate in spray process 1 and 2 Writing 24 in group 3 column will indicate fans group 3 to participate in spray process 2 and 4 Create a stop condition of the marked spray process over the fans group For
66. u have to study your greenhouse and tune the corrective parameters Follow the next procedure step by step gt Set all the constant parameters marked as on the left column according to given data gt Set all coefficients marked as on the left column according to our recommendations or according to your primary knowledge gt Check the Required water temperature to see if you get a value which is suitable to your assessments Do some small changes to the parameters one at a time until you reach the target gt Make timely changes to timers according to your observation of greenhouse response time gt Make timely changes to multipliers according to your observation of overshoot and undershoot In order to determine what is considered to be a stable condition for the slow constants correction please define Significant change Set time to register external sensors and compare with previous registry kok check timer Recommended value 15 minutes Wind chill Set what is considered to be significant change in external air temperature significant change after wind chill calculation Set a value that undoubted is influences the degree inner temperature in a way that requires a change in water temperature of more than 2 C Recommended value 4 Ext radiation Set what is considered to be significant change in external radiation Set a significant change value that u
67. ut time 532 n 61 Output end time 6 hh mm End air mix time 532 n 61 Air mix free outp 7 end time hh mm End proc time 532 n 61 Process end time 8 hh mm Stop conditions Tmp To stop above When the greenhouse temperature rises above this 532 n 62 40 High tmp To stop set point it will cause process termination and free process above the greenhouse to temperature reducing processes Wind level to stop Enables reference to the wind level as a parameter 532 n 62 5 High wind level to of process efficiency and stop it at a high level 2 stop process above Hum To stop above A maximal set point for humidity If the 532 n 62 High Hum To stop greenhouse reaches this level the humidity delay 3 process above is set The process stops if the humidity stays high Hum delay mnt until the end of the delay timer countdown 532 n 62 5 High Hum Delay minutes 4 Fault input No An input such as empty chemical tank indicator 532 n 62 Fail input No to stop that stops the process 5 spray Page 48 Ventilation before and after spray the purpose of this function is to prepare the greenhouse for long time closing reguired for the spray process You can reduce the greenhouse temperature and humidity lower then the usual just before process starts assuming that it rises guickly during the spray process because all windows and fans are closed The other side of the function is basically to enable people to ent
68. y No A stop link to spray process writing 14 for 532 n 32212 6 Stop during spray proces 0 example gives priority to spray process and 4 1234 over this process Stop at CO2 No A stop link to CO2 process writing 14 for 532 n 32212 7 Stop during CO2 process No example gives priority to CO2 process 1 and 4 0 1234 over this process Page 21 Chapter 4 Heating Heating is not a stand alone output but rather a process Although each column in the Heating screen refers to a related output additional operations are always reguired A heating device can be a circulating pump in hot water systems a direct flame heater or a pre heated air blower But if the application uses a 3 way valve you must set it in circular heating module Heating Operation Chart Is CO2 process running Set point Operate temp at CO2 Is system time in one of alternate heating times Set point active alternate time set point Set point regular heating set point Is sensor s temperat ure below set point Set point Set point differential Page 22 Tmp Sensor No The temperature sensor from the Temperature 532 n 43 Temperature Sensors table to which this heating process refers 1 sensor No Hum sensor No The humidity sensor from the Humidity Sensors 532 n 43 Humidity sensor table to which this heating process refers 2 No Gen sensor No The general sensor from the General

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