Link4 iGrow 1800 Installation And User Manual Download Page 72

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iGrow 1800 Installation Guide

Page68

Link4 (714) 524-0004

Factor Type:

Heat

Status:

Disabled

Condition Sensor:

OutTemp

Factor Type

: Select Heat or Cool Setpoints that are to be influenced

Status:

Either Enable the influence or Disable it

Condition Sensor

: Select which sensor that you want to drive the influence

Offset 1:

0.0 ºF

Condition 1:

-0.0 ºF

Offset 2:

0.0 ºF

Condition 2:

-0.0 ºF

Offset 1

is the setpoint adjustment if the influence sensor reading is greater than the

Condition 1

Offset 2

is the setpoint adjustment if the influence sensor reading is less that

Condition 2.

Temperature Drive to Average Control

Drive to Average

will adjust the night setpoints so as to maintain an overall daily average target

temperature.

Influence Factor

Drive to Average

Selecting

Drive to Average

brings you to the following screen

Summary of Contents for iGrow 1800

Page 2: ...oint and Staging Worksheets 6 CO2 Worksheet 6 For more information on CO2 control see the CO2 Equipment portion of this manual Accumulated Light Worksheet for Irrigation 7 Accumulated Light Worksheet...

Page 3: ...e 41 Expansion Units Multi Zone Network 43 Programming your iGrow1800 46 Before You Begin Programming 46 Navigation 46 Status Screens and Programming Screens 47 Status Screens 47 Welcome Screen 47 Mai...

Page 4: ...CO2 Equipment 78 Light HID Equipment 79 Pump Control 83 Vent Proportional Programming 85 Curtain Programming 87 Mixing Valves 89 PZone Micro Zone for Proportional Equipment 92 VOut Variable Voltage Cu...

Page 5: ...ynamic programming flexibility for easier and more accurate greenhouse management giving you the freedom for you to focus on plants and profits The reason why we stand out from others is because of ou...

Page 6: ...also reserves the right to make any necessary changes to features and specifications to condition or warranty Returns Merchandise cannot be returned without a Return Merchandise Authorization RMA num...

Page 7: ...g stage called the Stage Separation or Stage Width Whenever the temperature rises 1 degree above the cool setpoint 700 then the iGrow 1800TM will activate the appropriate equipment to bring the greenh...

Page 8: ...point time periods Of course the ramp times can be set to 0 and in this case there will be an immediate step transition in the set points This is best explained by the illustration shown below 12am 1...

Page 9: ...these sheets before using them They will be useful in the future should your control need change The first worksheet is for temperature and humidity controls It should be completed as thoroughly as po...

Page 10: ...HUMIDIFICATION EQUIPMENT NAME TEMPERATURE Low Set Pt F C High Set Pt F C Figure 3 1 Setpoint Staging Worksheets For more information on Staging see the Cool Heat Stages portion of this Manual For more...

Page 11: ...ENT NAME OUTPUTS CO2 ENABLED STAGE CO2 MINIMUM LIGHT LEVEL W m2 START TIME hh mm END TIME hh mm MINIMUM CO2 LEVEL ppm MAXIMUM CO2 LEVEL ppm Figure 3 2 CO2 Worksheet For more information on CO2 control...

Page 12: ...on Accumulated Light mode irrigation see the Irrigation portion of this manual Figure 3 3 Accumulated Light Worksheet for Irrigation Cycle Trigger Worksheet for Irrigation 1 2 3 4 5 6 7 8 9 10 11 12...

Page 13: ...ind and rain sensors and CO2 monitors can be purchased and added at any time Make sure you have all items all associated hardware and necessary tools before you begin installation If there is any visi...

Page 14: ...ndent of any noisy high power equipment The use of a sealed outlet is recommended if the power output is exposed to moisture 4 There are 4 mounting feet on the backside of the iGrow 1800 For shipping...

Page 15: ...VE SELF DRILLING 4PL Part Number 370 0007 00 WASHER 1 4 FLAT 4PL Part Number 371 0000 00 SCREW 3 8 HEX DRIVE SELF DRILLING 4PL Part Number 370 0007 00 WASHER 1 4 FLAT 4PL Part Number 371 0000 00 BOLT...

Page 16: ...ted take some time to look over the front panel The iGrow1800 has many features to help give you the growing advantage Figure 4 3 below gives an overview of the main components that the iGrow1800 has...

Page 17: ...swing downward It can be stopped at two positions fully downward 180 deg or at 90 deg using the front panel support cable This cable should always be tucked away when it is not being used The hinged...

Page 18: ...l connections be made through the 4 liquid tight connectors at the bottom of the iGrow 1800 since the glands compress around the cables to form a watertight seal Making any additional holes in the top...

Page 19: ...5 Take the open end the two stripped and tinned leads of the power supply The RED lead is the 12V power and the BLACK lead is the GND ground Route the power lead through the left most liquid tight co...

Page 20: ...iGrow 1800 Installation Guide Page16 Link4 714 524 0004 Part Number 551 0000 00 Figure 4 7 Wiring the Power Supply...

Page 21: ...ow1800 relays is 1 amp There are voltage suppressors on each output to protect the iGrow 1800 from excessive inductive spikes Additional protection should be used in the contactor panel if there are l...

Page 22: ...AC MAX VOLTAGE 3 MAXIMUM OF 1 AMP CURRENT RATING PER CHANNEL 4 MAXIMUM OF 7 AMP CURRENT RATING ON MASTER COMMON 5 DO NOT WIRE 120 220 VAC INTO iGROW 1400 OUTPUT TREMINALS 6 IT IS RECOMMENDED THAT YOU...

Page 23: ...MAXIMUM OF 1 AMP CURRENT RATING PER CHANNEL 4 MASTER COMMON NOT USED ON ANY CHANNEL WIRED AS A DRY CONTACT 5 DO NOT WIRE 120 220 VAC INTO iGROW 1400 OUTPUT TERMINALS 6 IT IS RECOMMENDED THAT ALL OUTPU...

Page 24: ...L 3 MAXIMUM OF 1 AMP CURRENT RATING PER CHANNEL 4 MAXIMUM COMBINED CURRENT OF 7 AMPS ON MASTER COMMON TERMINAL 5 DO NOT WIRE 120 220 VAC INTO iGROW 1400 OUTPUT TERMINALS 6 IT IS RECOMMENDED THAT ALL O...

Page 25: ...of a short in the event the open and close switches are turned on at the same time Usually the contractors in the relay panel have mechanical interlocks to prevent this from happening and the iGrow in...

Page 26: ...RED AS FOLLOWS 1 2 3 4 5 6 7 8 9 10 or 11 12 ODD NUMBER OF ANY PAIR MUST BE WIRED AS OPEN EVEN NUMBER OF ANY PAIR MUST BE WIRED AS CLOSE 7 IT IS RECOMMENDED THAT ALL OUTPUT WIRING IS RUN THROUGH THE T...

Page 27: ...0 220 VAC INTO iGROW 1400 OUTPUT TERMINALS 6 INTERLOCKS CAN ONLY BE PAIRED AS FOLLOWS 1 2 3 4 5 6 7 8 9 10 or 11 12 ODD NUMBER OF ANY PAIR MUST BE WIRED AS OPEN EVEN NUMBER OF ANY PAIR MUST BE WIRED A...

Page 28: ...able as needed but make sure to use an adapter and wire approved by Link4 to make any extensions the wire and adapter can be purchased from Link4 Any extension wire must be shielded and stranded 24AWG...

Page 29: ...ED TO RUN ALL SENSOR WIRES THROUGH THE WATER TIGHT GLAND ON THE FAR RIGHT SIDE OF THE iGROW 1400 THIS CONSERVES THE TWO MIDDLE GLANDS FOR OUTPUT WIRING 3 THIS DRAWING IS NOT TO SCALE 4 SOFTWARE SETTIN...

Page 30: ...gh the right most watertight fittings at the bottom of the enclosure It is easy to strip insulation and or break wires when pulling cable If you want to bundle wires tighter use UV protected tie wraps...

Page 31: ...OUGH THE WATER TIGHT GLAND ON THE FAR RIGHT SIDE OF THE iGROW 1400 THIS CONSERVES THE TWO MIDDLE GLANDS FOR OUTPUT WIRING 2 THIS DRAWING IS NOT TO SCALE 3 SOFTWARE SETTINGS USING THE iGROW1400s KEYPAD...

Page 32: ...GH THE WATER TIGHT GLAND ON THE FAR RIGHT SIDE OF THE iGROW 1400 THIS CONSERVES THE TWO MIDDLE GLANDS FOR OUTPUT WIRING 2 THIS DRAWING IS NOT TO SCALE 3 SOFTWARE SETTINGS USING THE iGROW1400s KEYPAD G...

Page 33: ...insulation and or break wires when pulling cable If you want to bundle wires tighter use UV protected tie wraps typically blue or black and do not over tighten Note If any splices are needed to exten...

Page 34: ...NNECT WIND DIRECTION WIRES TO THE iGROW1400 AND TURN ON iGROW1400 c ON THE iGROW1400 STATUS SCREEN FIND THE READING FOR WIND DIRECTION d HAVE SECOND PERSON CLIMB LADDER AND SLOWLY ROTATE THE WIND VANE...

Page 35: ...plices are needed to extend cable length make certain they are WATERTIGHT Water or fertilizer infiltration WILL cause unstable sensor readings 6 Keep sensor cables away from interference sources inclu...

Page 36: ...ES THROUGH THE WATER TIGHT GLAND ON THE FAR RIGHT SIDE OF THE iGROW 1400 THIS CONSERVES THE TWO MIDDLE GLANDS FOR OUTPUT WIRING 2 THIS DRAWING IS NOT TO SCALE 3 SOFTWARE SETTINGS USING THE iGROW1400s...

Page 37: ...UV protected tie wraps typically blue or black and do not over tighten Note If any splices are needed to extend cable length make certain they are WATERTIGHT Water or fertilizer infiltration WILL cau...

Page 38: ...THE WATER TIGHT GLAND ON THE FAR RIGHT SIDE OF THE iGROW 1400 THIS CONSERVES THE TWO MIDDLE GLANDS FOR OUTPUT WIRING 2 THIS DRAWING IS NOT TO SCALE 3 SOFTWARE SETTINGS USING THE iGROW1400s KEYPAD GO...

Page 39: ...when pulling cable If you want to bundle wires tighter use UV protected tie wraps typically blue or black and do not over tighten Note If any splices are needed to extend cable length make certain the...

Page 40: ...D TO RUN ALL SENSOR WIRES THROUGH THE WATER TIGHT GLAND ON THE FAR RIGHT SIDE OF THE iGROW 1400 THIS CONSERVES THE TWO MIDDLE GLANDS FOR OUTPUT WIRING 3 THIS DRAWING IS NOT TO SCALE 4 WHEN CHOOSING LO...

Page 41: ...tighten Note If any splices are needed to extend cable length make certain they are WATERTIGHT Water or fertilizer infiltration WILL cause unstable sensor readings 6 Keep sensor cables away from inte...

Page 42: ...nputs AND ADJUST CO2 to AnalogIn6 4 WIRING FOR CO 2 SENSOR IS NOT INCLUDED BUT CAN BE PURCHASED FROM LINK4 CORP IF NEEDED 5 AFTER INSTALLATION CO 2 SENSOR MAY NEED UP TO 30 MINUTES TO STABILIZE IT S R...

Page 43: ...k wires when pulling cable If you want to bundle wires tighter use UV protected tie wraps typically blue or black and do not over tighten Note If any splices are needed to extend cable length make cer...

Page 44: ...UTPUT WIRING 2 THIS DRAWING IS NOT TO SCALE 3 SOFTWARE SETTINGS USING THE iGROW1400s KEYPAD GO TO Setup Inputs AND ADJUST Temp1 to AnalogIn1 Temp2 to Analog2 Temp3 to Analog3 etc THIS SENSOR CAN BE CO...

Page 45: ...ertight fittings at the bottom of the enclosure It is easy to strip insulation and or break wires when pulling cable Use UV protected tie wraps typically blue or black and do not over tighten Note If...

Page 46: ...TES 1 IT IS RECOMMENDED TO RUN THESE CABLES THROUGH THE WATER TIGHT GLAND ON THE FAR LEFT SIDE OF THE iGROW 1400 THIS CONSERVES THE TWO MIDDLE GLANDS FOT OUTPUT WIRING 2 THIS DRAWING NO TO SCALE REMOV...

Page 47: ...o be the Site Master Once all units are installed in their proper locations and all sensors tested you are ready to connect the serial cable Regardless of which units will be Zone Masters or Expansion...

Page 48: ...Expansion wiring configuration Slave 2 Slave 1 Salve 3 It is essential to connect networked iGrow1400s in a serial fashion as shown above Any other configuration will prevent the network from functio...

Page 49: ...APTOR CABLE ORANGE WIRE GREEN WIRE RED WIRE BLACK WIRE GND WIRE RED WIRE NOTES 1 IF SEVERAL iGROW 1400 s ARE NETWORKED TOGETHER THE PC MUST BE CONNECTED TO THE MASTER UNIT ONLY 2 ONCE THE iGROW 1400 I...

Page 50: ...Used to edit decrement alphanumeric parameters See also Browse Mode Used to edit increment alphanumeric parameters See also Browse Mode Prev Used to move backward from screen to screen in browser mod...

Page 51: ...ng screens are where you setup and adjust Equipment Setpoints Overrides Other settings important related to your greenhouse The Navigation Menu Map on the following page shows all the primary screens...

Page 52: ...st condition Please refer to the Dehumidification Humidification section for a description on Heat Boost InT This is the current indoor temperature reading from the indoor temperature sensor OutT This...

Page 53: ...iGrow 1800 Installation Guide Page49 Link4 714 524 0004...

Page 54: ...pically installed outdoors with a maximum reading of 2000 Watts meter squared OR in Klux with a maximum of 120Klux Wind This wind speed reading is displayed in miles per hour or kilometers hour along...

Page 55: ...to that channel Names are limited to 5 alphanumeric characters Third column The third column is the number of times that the respective output has been triggered in irrigation mode Fourth column The f...

Page 56: ...pansion Settings Heat Demand Cool Demand System Setup installation settings If you re setting up your iGrow1600 1800 for the first time then the first task is to program all applicable items found und...

Page 57: ...d hysteresis band For cooling it is the number of degrees the temperature needs to drop from the lower boundary of its current stage before it switches to the lower stage Without Deadbands equipment t...

Page 58: ...es This parameter is used to minimize the cycling of the equipment Irr Mode Irr Mode is either Concurrent or Sequential You can choose between the two options by pressing the or key These options appl...

Page 59: ...On Time is the shortest time that the lights will be on This is to eliminate short cycling of the lights The figure below illustrates the case where you selected the sequential mode and you have two l...

Page 60: ...ation Guide Page56 Link4 714 524 0004 In the Concurrent mode all the channels will come on at the same time Typically the Start Delay will be set to 0 00 and the Finish Delay will become the Off Time...

Page 61: ...In3 Temp4 AnalogIn4 Temp5 AnalogIn5 VPos1 AnalogIn1 VPos2 AnalogIn2 VPos3 AnalogIn3 VPos4 AnalogIn4 VPos5 AnalogIn5 pH1 AnaIn1 pH2 AnaIn2 pH3 AnaIn1 pH4 AnaIn2 5uS EC3 AnaIn3 Soil1 None Soil2 None Soi...

Page 62: ...ackup Sensor Setup Accumulators Accumulator 1 Sensor None Operating Period 24 Hour There are two accumulators that can be used They can be used for the outdoor temperature influence on the indoor temp...

Page 63: ...e or negative adjustment to the raw reading giving you an adjusted value Adj Value Adj Value is what will be reflected on the front status screen Time Date History Time 12 17P Date 04 26 2005 Tue Dayl...

Page 64: ...ns and is the only unit that a Weather Station and PC can be connected to Site Master To setup your Site Master press Enter Menu System Setup Communications Under the Communications screen you ll find...

Page 65: ...Expansion Unit Outputs 37 48 Note Be sure that Expansion Units are set up in sequential order For Example if you have only two expansion units be sure to set one as 13 24 an the other to 25 36 DO NOT...

Page 66: ...is to force the iGrow 1800 into any stage automatically In the example screen above the iGrow 1800 would engage whatever equipment you have assigned to be ON under NORM conditions Advanced Settings Mi...

Page 67: ...e plus the Temp Hysteresis value For example let s say the Hyst Value is 5 F If the curtain closes at 70 F then to reopen it the temperature level must reach 75 F or 70 5 Note Regardless of what cause...

Page 68: ...etwork to see if another controller has been added or if one is lost Your choice is either every 5 min or on reset Reset Error This feature is used for testing troubleshooting If you are having commun...

Page 69: ...her information on Smart Cool please contact Link4 Clear History Press ENTER to clear History Log Press any other key to exit The Clear History option is made available to erase any previous history l...

Page 70: ...or keys Pressing Enter takes you to the Enabled or Disabled option Setpoint 1 is always enabled Setpoint s 2 8 are disabled You may enable them by use of the key Note If you only have day and night s...

Page 71: ...you enter the heat and the cool setpoints that is the low temperature and the high temperature targets Humidity Setpoints The humidity range is shown on the fourth line If the humidity is below the l...

Page 72: ...Offset 1 0 0 F Condition 1 0 0 F Offset 2 0 0 F Condition 2 0 0 F Offset 1 is the setpoint adjustment if the influence sensor reading is greater than the Condition 1 Offset 2 is the setpoint adjustme...

Page 73: ...Target Deviation is the number of degrees that the average temperature is allowed to vary from the setpoint before a fail day is signified The Max Adjustment Size is the maximum number of degrees by w...

Page 74: ...ce with its own setpoints and temp sensor temp probe only It is an independent thermostat output with Day Night settings It can be programmed on any Channel Pump Pump may be programmed on any channel...

Page 75: ...ing Stage setup you selected fewer than 6 stages then only the number of stages that you selected will appear for the On Off devices and Vents Refer to Cool Heating Stages Setup to set how many stages...

Page 76: ...OVR 654321 N 123456 Ride 000000 0 000000 This is an override screen which is conditioned on the AC override being active Suppose you have two systems for cooling in the same greenhouse compartment On...

Page 77: ...e the VPD threshold at which the irrigation valve is turned on for the user programmable time Scheduled Irrigation 01 Irr01 Irr Mode Scheduled hr mm ss OnTime 00 00 00 01 Irr01 Irr 7 00A 8 00A 12 30P...

Page 78: ...the threshold is reached outside the time window irrigation will not take place until the beginning of the next active time window 02 Irr02 Irr 6000 W m2h at 55 F 3500 W m2h at 85 F Max Off 8 00 hh mm...

Page 79: ...mm ss OnTime 00 00 00 When you select this option you will get the following screen The cycling option is for turning on and off a valve at some repetition rate during a time window As with the other...

Page 80: ...r only between the Start and End times These two time values can be astronomically adjusted with respect to either sunrise or sunset Soil Trigger Irrigation The Soil Trigger irrigation option is desig...

Page 81: ...n the air and how much moisture the air can hold when it is saturated Therefore VPD VP SAT VP Air The iGrow 1600 1800 calculates the VPD based on the temperature and humidity sensors in the greenhouse...

Page 82: ...he days Note It does not mean that the Start is exactly at the sunrise time or the End at exactly at the sunset times You can select any time window What it means is that the daily adjustment is per t...

Page 83: ...t When you set the parameters up for the first time as shown in the above screen the Start and End times will be adjusted every day thereafter at 2 AM to track the shortening and lengthening of the da...

Page 84: ...0A On this screen you can see that you have up to three time periods per day to program an ON and OFF time for your lights Just press the Next or Prev keys to navigate to the time entry you want to mo...

Page 85: ...use artificial light if necessary to achieve a daily amount of accumulated light in the greenhouse zone 06 HID Light Select Operational Mode DLI 06 HID Light Light Sensor InLight Threshold 11 0 kW m2...

Page 86: ...es can be set one for Day and the other Nite Either can be Enabled or Disabled The Day temperature target begins with the Start time The start can be astronomically adjusted by pressing the key when t...

Page 87: ...ld To tie a pump to a specific mixvalve you must specify in the mixvalve s settings which pump you want it to control For more details on this see the Programming Mix Valve section of this manual 05 P...

Page 88: ...ted The deadband forces the pump to stay on for a while past the setpoint The purpose of deadbands are to keep the pump from constantly turning the pump on and off again to maintain the setpoint 05 Pu...

Page 89: ...ll open position or vice versa Note to determine the vent open time turn manual toggle switch on and using a clock or stopwatch time the vent as it goes from it s closed to open position 07 08 Top V V...

Page 90: ...exceeds a plus or minus value relative to the cool temperature setpoint This override is anticipatory and is particularly useful for the open roof vent configuration or the side roll up vents It is al...

Page 91: ...to ON this mode is engaged and the vent will automatically go through the open close routine and the runtime between the position sensor positions will be saved in memory 07 08 Top V Vent N C1 C2 C3...

Page 92: ...you have a light sensor you may want the curtain to shade only when the light exceeds a threshold Therefore you have a Close Above light intensity value you can select Also if you have an outside temp...

Page 93: ...in all at once This option lets you select an outside temperature below that the curtain will open in four steps It will open 5 and then pause for five minutes It will do this for four times and then...

Page 94: ...mbient temperature within the greenhouse to rise 2 deg Use Pump If you want the iGrow1800 to control a pump associated with the mixvalve system this is where you select which pump to control You must...

Page 95: ...lve1 MixV Water Temp P 2 00 I 0 05 D 0 00 01 02 Valve1 MixV Inside Temp P 1 00 I 0 40 Disable No D 0 40 P I and D values These parameters determine the reaction times of the valve as related to the di...

Page 96: ...channel odd numbered must be wired to OPEN the valve and the other even numbered to CLOSE it Note In some versions PZone may be shown as MZon2 07 08 Valve1 PZone WtrTemp1 Min 45 0 F Max 120 0 F Open T...

Page 97: ...peratures for the Micro Zone Use or to set each value 07 08 Valve1 PZone Shock Prot No if Temp3 105 0 F limit to 5 open The fourth screen is settings for shock protection in your boiler system Shock P...

Page 98: ...fference between the target and the desired temperature The higher the number the more the valve will move when the temperature differs from its target Be very careful when increasing this number Note...

Page 99: ...bered output The pulsed version requires only one output and can be set on any channel 09 10 G PID Type Timed Move Time 00 m 00 s 09 10 G PID P 1 50 I 1 50 D 0 00 Sensor Generic1 Setpt 0 1000 in Hg 09...

Page 100: ...s appear 15 VFan1 VOut Current varies with Ht Dem Ht Dem This field determines whether the equipment connected to this output is for heating or cooling Ht Dem is for heating and Cl Dem is for cooling...

Page 101: ...ram the equipment you want to use in each of the four humidity override states See second figure above The four states are DeHumidity Stage 1 DH1 DeHumidity Stage 2 DH2 DeHumidity Low Temperature DHLT...

Page 102: ...time the humidity drops below the target the dehumidification state will end and the equipment will return to normal temperature control The Heat Boost is another means of reducing the humidity You c...

Page 103: ...e stage that you want to force the zone into Time Start and Stop Enter the times of day you want the overrides condition to begin and end One Time Only or Daily Choices for this field are Daily or One...

Page 104: ...uipment Dehumidify Humidify Stage Overrides Equipment Overrides Smart Cool Settings Setpoint Alarms Auxiliary Controls Expansion Settings Heat Demand Cool Demand Smart Cool Disable Enter a number from...

Page 105: ...int of the cool and heat setpoints As soon as the temperature drops below the midpoint the cooling state is reduced by one Hopefully this will raise the zone temperature above the midpoint If after a...

Page 106: ...le if your Set Point temperature is 70 degrees and you want the alarm to trigger 10 degrees above this value you will enter the 10 as shown above Time Value The Time Value that must be met in order to...

Page 107: ...ice ON OFF CO2 Light etc if channel 1 passes some threshold then activate channel 5 Example 2 Channel 1 is set as a two channel proportional device Vent Mixvalve Curtain if channel 1 goes above 50 the...

Page 108: ...ment usage by changing more gradually rather than by waiting until conditions have already changed Heating Demand Design Delta 45 0 F Max OLight 1200W m2 Max Wind 80mph Design Delta The Design Delta i...

Page 109: ...ool When Active Cool is Disabled the controller will operate only in stage based cooling 6 stages of cooling However when Active Cool is Enabled fixed stage based control is turned off and chilled wat...

Page 110: ...cccccccccccccccccccccccccccccc...

Page 111: ...Appendix iGrow 1800 User Manual Supplement Advanced Auxiliary Controls User s Manual October 2015 Edition Version 1 0...

Page 112: ...04 Table of Contents What are Advance Auxiliary Controls 108 Getting Started with Auxiliary Controls 109 Typical Conditional Statement 112 Example of Conditional Statement Priorities 116 2 OPERATOR CO...

Page 113: ...n They act as override to the built in controls For example Link4 has provided a set of built in controls for a typical Ventilation system However the user can use the AACs to override the Vents expec...

Page 114: ...y your auxiliary control to Locate the Zone Settings control box in the lower left Select Aux Controls This will bring up the Advanced Aux Controls window On the iGrow 1800 there will always be a Zone...

Page 115: ...sample control statement will appear This example aux control will not do anything funtionally The control statement is in the form of a conditional statement if x condition then result y Select Edit...

Page 116: ...uration before the statement can be executed ACTION If the condition was successful met i e It was TRUE for the entire duration of the CONDITION HOLD TIME then the ACTION would take place The action i...

Page 117: ...tes Also once the temperature cools down below 87 5F we still want the Curtain to stay at 25 for 10 minutes before going back to where it needs to be according to the built in logic You might want to...

Page 118: ...second operand place holder Click on that Again as previously the operands are shown in groups In this case look for a special group of operands that has numbers or values Select Number Value and ente...

Page 119: ...m as shown below Once the condition has been met in this case Inside Temp 87 5F for 2 minutes then an action will take place The action is usually setting something This is the default already set Lea...

Page 120: ...ld the action in this case keep the curtain at 25 eventhough the condition Inside Temp 87 5F is no longer met Click on the hold time box and enter in 10m for 10 minutes Next enter in a short comment d...

Page 121: ...crucial In the example above we created a statement to open the Curtain if it is too warm inside the growth space Now we will add statement 2 to close the Curtain completely if the light level is exce...

Page 122: ...the Inside Temperature statement by moving it to 2 the Light statement to 1 This is done by clicking on the upward arrow on the right of the statement 2 Then the new ACCs will look like this Click Upd...

Page 123: ...iGrow 1800 Advanced Aux Controls Page 118 of 131 Link4 714 524 0004...

Page 124: ...nt For example a digital input is either 0 or 1 So you could write When Digital 1 is 0 or just write When Digital 1 In other words just omit the 0 portion of the statement The 2 operator condition is...

Page 125: ...ose the Outside Humidity operand all the way to the bottom of the list As you can see a place holder for the second operator is automatically presented Click on it and select the less than operator No...

Page 126: ...row 1800 Advanced Aux Controls Page 121 of 131 Link4 714 524 0004 Then set the Target Equipment and Value If done properly you should get the conditional statement 3 as shown below Click Update to sav...

Page 127: ...However the ACTIONs can be stored in a variable so that it can be used again in another control statement Let s illustrate this with an example First let s say you have a Pump equipment that drains th...

Page 128: ...ls Page 123 of 131 Link4 714 524 0004 First let s say the pump is on output 12 First create a variable and call it Main Pipe Water Sensor Go to the Zone Master Variable tab in the AACs Name the variab...

Page 129: ...iGrow 1800 Advanced Aux Controls Page 124 of 131 Link4 714 524 0004 Before the variable name can be used you need to click Update Exit the AAC panel and come back in again...

Page 130: ...iGrow 1800 Advanced Aux Controls Page 125 of 131 Link4 714 524 0004 Now use the familiar process to create a new conditional statement 4...

Page 131: ...ET PARAMETER to a variable and choose the name Main Pipe Water Sensor as shown Then set the value to 1 in the event that Digital Input 1 ON for 1 minute Now that we have created statement to set the v...

Page 132: ...get Parameter and Value to turn the return pump on when there s water in the pipe Add in the hold time and comment and save statement 5 It s worth noting that statement 5 is an example of Zero Operato...

Page 133: ...d Aux Controls Page 128 of 131 Link4 714 524 0004 Setting the alarm based on a combination of water present and water temperature is a bit more complex First detect if the water is present Then choose...

Page 134: ...iGrow 1800 Advanced Aux Controls Page 129 of 131 Link4 714 524 0004 Now build the temperature conditional statement Now set the action to turn the alarms on...

Page 135: ...age 130 of 131 Link4 714 524 0004 Set hold time comments and save The completed statements should look like below Click Update to save Now as example of debugging there is actually a problem with the...

Page 136: ...524 0004 Examine statement 8 below We will move it to the 5th position Now when there s no water the variable will be set to 0 Without 5 this variable goes to 1 to indicate water present but still sta...

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