TABLE OF CONTENTS Introduction Product Benefits System Overview How does it Work? Mounting and Installation Installing the Novo Wiring the Novo Programming a Decoder Wiring a Decoder to a Valve Solenoid Programming an External Sender Connecting Senders to a Host Controller...
Simple – Compact design for faster and easier mounting to an interior wall or within a wall mount or pedestal-type enclosure for outdoor applications. Flexible and Easy to Expand – The Novo is intended to operate up to 32 stations on a 2Wire system using any host conventional multi-wire irrigation controller.
The Novo in turn converts signals to the 2Wire communication path to individual station valves with decoders. The Novo is powered from an external AC adapter connected to a 120-volt or 220-volt power source. This is the same requirement whether the Novo is wall- mounted indoors or outdoors in a weather-resistant pedestal-style enclosure.
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Figure 3-1 depicts the Novo with a host controller managing up to 63 stations by adding 8-station Senders for station counts above 32. MANAGING UP TO 63 STATIONS Figure 3-1 Note: Assumes the host controller must have sufficient stations to manage 63 stations or if two stations are combined to a single decoder using a controller with fewer stations.
MOUNTING AND INSTALLATION Installing the Novo The Novo installs to any vertical surface by using the upper 2 (qty) keyholes and two lower holes (accessible inside the product) located on the back of the case. See Figure 4-1. 2 (qty) keyhole...
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VALVE STATION SEQUENCING Figure 5-2 The Novo comes with four sets of color-coded, pre-installed cable assemblies but if fewer stations are required, a cable assembly can be removed by pressing down on the square button next to the terminal hole with a small flat-bladed...
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Table 1 below provides the wire color-coding on each of the four terminal blocks for the Novo. Confirm these wires are connected to a host controller’s station outputs accordingly. Table 1 NOVO STATION WIRE TERMINATIONS Terminal Block Location Terminal Block Location...
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Note: Avoid sharp bends in the ground wire where a surge can jump to other conductors when a surge occurs. 5. Connecting the Novo to an AC Power Source Connect the Novo to a 120 or 230-volt, 50 or 60Hz power source using an Underhill external transformer part number TW-35VA-115v or TW-35VA-230v models.
PROGRAMMING A DECODER An Underhill Decoder p/n TW-TK-DEC-1 is connected to each valve solenoid to be operated from the Novo and a host controller. Each decoder must be programmed using the Underhill Portable Programmer p/n DEC-PROG-115 or DEC-PROG-230 with the corresponding valve station number. See Figure 8-2.
Figure 9-1 PROGRAMMING AN EXTERNAL SENDER For applications above 32 stations, Underhill 8-station External Sender’s p/n TW-SEN-8 can be used up to manage up to 63 stations. These are programmed using the same portable programmer. The Sender addresses must be programmed from 5-8. For example, stations 33-40 is activated with the Sender address 5, while stations 41-48 addressed as 6.
CONNECTING SENDERS TO A HOST CONTROLLER Connect the small, color-coded wires from the Sender to the host controller’s station outputs starting with station 33. Table 2 below identifies the wire color- coding for Senders above 33-63. Table 2 UNIVERSAL SENDER WIRE COLOR CODE Universal Sender #5 Universal Sender #6 Universal Sender #7...
KEY FUNCTIONS The Novo offers several key functions for periodic maintenance or fast and easy troubleshooting. Saves a change that has been edited Moves to a highlighted menu Returns to the top of the menu Undoes a change made to a value...
DIAL POSITIONS The Novo has five main menus that can be selected similar to a rotary dial by simply pressing the corresponding menu button. When a button is pressed, a small red LED will illuminate providing confirmation of the selected menu.
3 display screens depending on the task currently being executed: Figure 13-1 shows when the Novo is 1. Pressing the RUN button puts the Novo into connected to a host controller when irrigation is not operating. “automatic mode” to accept commands from a host controller.
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2. Pressing the “Up” (+) button will scroll back up to the previous 7 stations. Note: The Novo does not display the time or date of when a failure occurs. Pressing the “NEXT/OK” button will navigate back to the top of the “Faults” list.
2. Press the NEXT/OK button to “View Sender Commands” shown in Figure 15-2. VIEW SENDER COMMANDS In this display the Novo verifies there is a wired connection to the host controller. 1. Pressing the NEXT / OK button will show the following in Figure 15-3.
NEXT/OK button to view additional information in this submenu. See Figure 16-1. 1. This function allows the user to alter default decoder thresholds only when the Novo fails to keep a station Figure 16-1 Press the “-“ button to running during a scheduled start time or manual select “Edit Decoder Setup”, then press...
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See Figure 19-1. ADVANCED FEATURES The Novo can be used with PLC or SCADA-type host products that can monitor and alert when a decoder fails to turn “on” or “off. ” There are 3 relay terminals, Normally Open (NO), Common (COM) and Normally Closed (NC) available, see Figure 17-2 to locate these terminals.
Note: Failure to make waterproof connections on the 2Wire path can lead to shorts and loss of operation to all decoders downstream of the failed splice. The maximum length of 2Wire for 14 AWG is 4000’ from the Novo to the furthest decoder operating one valve at a time. See Figure 18-1.
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When no stations are running: (no. of decoders x 3mA) When a station is running: (no. of decoders x 3mA) + Solenoid’s current {typically 250mA} If the station The first step is to check for issues between the Novo and number is not the host controller. displayed in the • Press the ‘Diagnostics”...
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• A wire connection between the Sender and the 2Wire path is downstream of the Novo is broken. Locate and repair as needed. • A wire connection between the decoder and the solenoid is broken. Repair the wire connection.
*To avoid the Adapter registering a shorted solenoid. Can be adjusted in DIAGNOSTICS, view High/Lo Threshold Dwell screen. Waterproof to NEMA 4, IP65 (when cables correctly clamped into case) Novo Terminal Blocks (JP8, 9, 11, 12) Input voltage to register a station (zone) active 12V-30V AC or DC...
Government Printing Office, Washington, D.C., Stock No. 004-000-00345 (price - $2.00 post paid). CERTIFICATE OF CONFORMITY TO EUROPEAN DIRECTIVES We certify that the Novo 2Wire Converter and the Station Decoder conforms to the European Directive 89/336/EEC J.A. Ware Underhill International Corporation.
ELSE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, HOWEVER OCCASIONED. The user and/or trade customer agrees to the limitation and exclusion of liability of this warranty by purchase or use of Underhill products. Some states do not permit the exclusion or limitation of incidental or consequential damages or of implied warranties.
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Communication Path & Maximum Wire Distances, 18 Connecting Senders to a Host Controller, 10 Connecting the Novo to a Host Controller, 4 Connecting the Novo to an AC Power Source, 7 Connecting to the 2Wire Communication Path, 6 DIAGNOSTICS, 15, See View Sender Commands, Edit Decoder Setup Dial Positions, 12, See Run, Faults, Diagnostics, Manual &...
INDEX managing up to 32-stations, 2 managing up to 63 stations, 3 MANUAL, 16 Novo Field Wire Terminal Blocks, 5 Novo Station Wire Terminations, 6 OFF, 17 Portable Programmer, 8 Product Benefits, 1 Programming a Decoder, 8 Programming an External Sender, 9...
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