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848 Airport Road, Walla Walla, Washington 99362 U.S.A.
Tel: +1 509.525.7660 / Fax: +1 509.525.7907

twigwirelesscontrols.com

If multi-valve modules are used then it is recommended that the maximum of 200 valves be controlled by

one TD200 controller. It is possible to have as many as 400 valves controlled but not recommended more

than 200 valves be used due to the complexity that may occur.

8.9.1 PROGRAMS:

The TD200 controller has a large capacity able to easily handle 50 unique programs. It is very flexible

because there are few limits so that any TWIG/valve can be used in any program and the programs can run

concurrently or individually.

Each program can have multiple valves. The time of each one can be individually set to operate in sequence.

8.9.2 MAnUAl COnTROl OPERATIOn:

The ‘Manual Control’ feature of the TD200 is useful to make a quick check of the system and to run some

valves of a period of time in order to adjust soil moisture level. For running any specific valves to water for

any reason.

Repeaters have advanced technology. These will reinforce the network when needed otherwise they are not

in the way for direct TD200 to TWIG communication.

This wireless technology has built in redundancy of signal transmission. Due to the nature of wireless

systems, transmission and reception of data can never be fully guaranteed. Although loss of signal is rare

every communication in this network is double checked. The use of a pressure relief valve to protect the

irrigation system pipes is essential.

Nelson Wireless Specification Continued

Содержание twig

Страница 1: ...2 System Overview 3 How to Setup the TWIG system 4 Programming Instructions 5 Using the Adjust function 6 Using the Manual Control function 7 Technical Section Application factors 8 Specifications and...

Страница 2: ...M 3 Rotate the left dial to PROGRAM 4 Select CREATE PROGRAM on the list and press ENTER 5 Create a name for the new program 6 Set initial time that each group will run Individual group watering durati...

Страница 3: ...te it near a central place so that the distance to each TWIG is minimized Typically electric power is available near the pump so the TD200 is usually placed there Antenna efficiency improves when loca...

Страница 4: ...within the recommended range Locate antennas as high as practical Stay within the recommended environmental limits Plan for crop growth so it does not block the signal and so that you can have good c...

Страница 5: ...ation about TWIG setup is in Section 3 2 3 Controller signal and valve response time The TWIG system communicates every 20 seconds which provides good response time However radio transmissions are sen...

Страница 6: ...feet or less Keep within the allowed range shown on the bar graphs in Section 7 Considering the crop and the elevation of the antenna make a plan for any repeaters that will be needed The map will be...

Страница 7: ...re 3 2 Help Button ID or network number Navigation Buttons Press ENTER to select line where is pointing Then press ENTER to save a change Use the navigation buttons to move around and change values on...

Страница 8: ...r each dial are listed here There are four lines that show on the screen and the lower lines can be seen by using the scroll down button to show all available options Figure 3 4 1 SETUP menu Figure 3...

Страница 9: ...to see screen at left Figure 3 4 3 ADJUST Dial Menus Figure 3 4 4 ADJUST Select Program Menus This is the duration for watering set time of each Group for each cycle of operation This is where you ca...

Страница 10: ...us of the programs the watering duration and time remaining for Groups You can rotate the dial to VIEW at any time without causing a change to operation of the programs 3 5 TWIG menus Exploring the TW...

Страница 11: ...o switch the solenoid ON and to switch the solenoid OFF When finished press ENTER to end test Press the right arrow The bars displayed here indicate the voltage charge of the D cell batteries in the T...

Страница 12: ...d control valve plan The first thing to do is get a field map It will help you place the TD200 controller in the best place Figure 4 1 35 GPM 1 2 3 4 5 TWIG on valve TWIG A0001 TW IG A0002 TWIG A0004...

Страница 13: ...ENTER to continue Step 2 Suppose we want make three groups of valves to run each group following one right after the oth er Next move down and set the groups to 3 Press ENTER to continue The line DEFI...

Страница 14: ...that is shown left or remaining time is to complete the cycle that is running If the program is not running anything then dashes are here The list shown below is for each valve Group number in order T...

Страница 15: ...nable manual valve operation You see the list of all TWIG addresses each representing one of your valves Select the valve you want by scrolling to the appropriate TWIG address line Press ENTER to make...

Страница 16: ...of controlling up to 100 TWIGs on valves The TWIG network has two way communication every 20 seconds and monitors battery and signal strength for each TWIG valve TWIGs on field valves There are six T...

Страница 17: ...the bare ground transforms into full onion tops filled with water Stay close enough to the controller or use a repeater so that it does not become a problem 7 3 1 Useful TWIG signal range graphs The r...

Страница 18: ...t to bar graph distance On the ground surface 40 Example Spacing limit to 40 of graph At 18 above ground 100 of graph distance At 6 ft above ground 125 At 15 ft above ground 150 Example Use graph dist...

Страница 19: ...o view areas that the antennas can see Here are two methods Example of view shed The red area is shadowed from the controller antenna and some things can be done to make that area get the signal bette...

Страница 20: ...solenoid coil is used The coil of the solenoid operates each pilot valve to make the Nelson valve open and close A short electrical pulse takes extremely low power consumption from the low power batt...

Страница 21: ...Dimensions 5 63 x6 88 x4 5 Weight with two D cell batteries 2 94 lbs NEMA Rating 4X Connections 24 inch wire leads for 1 latch solenoid Radio Frequency 908 922 MHz 8 channels preselected by the TD200...

Страница 22: ...P Contains transmitter module IC 9686A VRCOMMHP All devices on the system complies with Part 15 Rules Operation is subject to the following two conditions 1 this device may not cause harmful interfere...

Страница 23: ...lves The time of each one can be individually set to operate in sequence 8 9 2 Manual control operation The Manual Control feature of the TD200 is useful to make a quick check of the system and to run...

Страница 24: ...r installation removal or unauthorized repair of defective parts and the manufacturer will not be liable for any crop or other consequential damages resulting from any defects or breach of warranty TH...

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