Do you have a question about the twig and is the answer not in the manual?
Questions and answers
Subscribe to Our Youtube Channel
Summary of Contents for Nelso twig
Page 1
I r r I g a t I o n t e c h n o l o g y f o r t h e f u t u r e User Guide INTRO - QUICK SETUP/PROGRAM Introduction System Overview How to Setup the TWIG system Programming Instructions Using the Adjust function Using the Manual Control function Technical Section (Application factors)
Page 2
QUICK SETUP/PROGRAM SETUP TD200 COnTROllER Power on then rotate the left dial to SETUP. 2. Select ‘Set Date & Time’ on the list and press ENTER. Adjust then exit. See section 3 for details about the network setup. PROGRAM 3. Rotate the left dial to PROGRAM. 4.
Page 3
The TD200 controller is the heart of the control system. It is best to locate 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 located at a high point so keep that in mind when choosing the controller location.
Page 4
Check with the local FCC for more details. • Keep in mind that the TWIG should be accessible because they contain batteries that will need to be replaced after some period of time.
TWIG has a display for configuration so it can easily be setup in the field. It is important that the TWIG box be in the upright position to get a good signal (don’t lay the TWIG box on back or side). You may be able to get slightly better antenna strength if the box door latches are lined up toward the controller.
Page 6
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 useful later to write the TWIG ID number next to each valve.
Page 7
Line pointer Edit or change of input Valve open Valve closed. Battery level of the lowest TWIG Radio signal strength bars Set Programs to cycle continuously. More information available by pressing the right arrow. 848 Airport Road, Walla Walla, Washington 99362 U.S.A.
TWIG 3.3 SETTInG UP ThE COnTROllER note Start by setting up the TD200 date and time. This information is used for scheduling and for logging data. PRESS ThE ? bUTTOn Any 3.4 SCREEn DISPlAy fOR EACh DIAl TIME TO DISPlAy ThE On- SCREEn hElP.
Page 9
Figure 3.4.3 ADJUST DIAl MEnUS To get details of program press ENTER to see screen at left. This is the duration for watering set time of each Group for each cycle of operation. Figure 3.4.4 ADJUST (SElECT PROGRAM) MEnUS To get details of program press ENTER to see screen at left.
3.5 TwIG MEnUS: Exploring the TWIG. When the TWIG is shipped from the factory it has its own identity number (ID). ID numbers beginning with A operate one valve, B two valves and D four valves. Identity number (ID) is factory set.
Page 11
Press Enter to wake the display. Remember the radios are still working even when the display goes blank. If the TWIG is not in a network then ‘none’ will display. If the TWIG is joined into a live network, the display shows the ‘S’...
Page 12
Section 7. Then consider the crop and the elevation of the anten- na, make a plan for any repeaters that will be needed. Write each TWIG ID address label onto the map.
It is convenient to know the first letter in the serial number indicates the device type. ‘A’ is used for TWIG-1, ‘B’ is for TWIG-2, ‘D’ is for TWIG-4, ‘E’ is for the TWIG repeater, ‘F’ is for the TD200. Each TD200 ID has been assigned before leaving the factory. It is unique and can not be changed.
Page 14
5.0 USInG ThE ADJUST fUnCTIOn The TWIG programs can easily be changed in the adjust menu. Programs can be set to either READY, OFF, SCHEDULED or RESET. Changes to any program can be adjusted for watering different length of time or different number of cycles.
Page 15
You then press ENTER to enable 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 the + visible. This signals the valve to open.
Page 16
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 TWIG choices available. These control one, two or up to four valves independently. Antenna options are the standard low-profile internal antennas or external Omni antennas.
Page 17
A frequently asked question is the distance that is good for signal range. For successful operation it is essential to stay within the range of the TWIG signal. Don’t try to go out too far past the clear signal range. In order to layout a good system use the range bar graphs in this section.
TD200 controller antenna 15 ft. height 18” TWIG in the field located 18 in. above ground level GUIDE fOR SPACInG In vARIOUS CROPS DIRECT LINE OF SIGHT TWIG SPACING (FT) 1000 2000 3000 4000 5000 6000 LOW GROWING ROW CROP...
Page 19
When laying out the field wireless network there are some tools that will save you time and trouble. 1) Simply take a TWIG and a controller to the field and get a signal strength reading. Look at the valve locations at the farthest distance away and check any area where the TWIG may have some signal obstructions.
Page 20
Multi-valve TWIGs are the way to run more valves with one TWIG. The models ‘TWIG-2’ and TWIG-4’ have the capability to hook-up to several valve solenoids. This is a cost savings since only one TWIG is needed to control each valve independently. The colored wire leads are provided. The wire color code drawing below shows the pairs of wires to use for each solenoid.
Page 21
8.0 SPECIfICATIOnS fOR nElSOn wIRElESS COnTROlS The Nelson TWIG Wireless Control System is a radio network system. Communication is by radio in the 900 mega-Hertz frequency range. The products used in the system complies with the FCC rules and does not require a radio license.
Page 22
60% of its rated capacity. The battery voltage is displayed as bars on the TWIG. Just remember that it is well worth using the highest quality batteries that are available and plan on replacing them at the beginning of the season.
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.
Page 24
WARRANTY AND DISCLAIMER Nelson products are warranted for one year from the date of original sale to be free of defective material and workmanship when used within the working specifications for which the products were designed and under normal use and service. The manufacturer assumes no responsibility for 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.
Need help?
Do you have a question about the twig and is the answer not in the manual?
Questions and answers