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W
att
Electric Power Meter - Installation Manual
WattNode Modbus
WNC-3Y-208-MB
WNC-3Y-400-MB
WNC-3Y-480-MB
WNC-3Y-600-MB
WNC-3D-240-MB
WNC-3D-400-MB
WNC-3D-480-MB
N
ode
Models
www.ctlsys.com
M
odbus
®
WattNode Revenue
for Modbus Models
RWNC-3Y-208-MB
RWNC-3Y-400-MB
RWNC-3Y-480-MB
RWNC-3Y-600-MB
RWNC-3D-240-MB
RWNC-3D-400-MB
RWNC-3D-480-MB
®
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Table of Contents
Related Manuals for CONTINENTAL CONTROL SYSTEMS WattNode WNC-3Y-208-MB
Summary of Contents for CONTINENTAL CONTROL SYSTEMS WattNode WNC-3Y-208-MB
- Page 1 odbus ® ® Electric Power Meter - Installation Manual WattNode Modbus WattNode Revenue Models for Modbus Models WNC-3Y-208-MB RWNC-3Y-208-MB WNC-3Y-400-MB RWNC-3Y-400-MB WNC-3Y-480-MB RWNC-3Y-480-MB WNC-3Y-600-MB RWNC-3Y-600-MB WNC-3D-240-MB RWNC-3D-240-MB WNC-3D-400-MB RWNC-3D-400-MB WNC-3D-480-MB RWNC-3D-480-MB www.ctlsys.com...
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Page 2: Table Of Contents
Contents Precautions ..........................3 Symbols .............................3 Overview ...........................3 Additional Literature ........................3 Electrical Service Types ......................4 Installation ..........................7 Installation Checklist ........................7 Mounting ............................7 Connect Voltage Terminals ......................7 Connect Current Transformers ....................8 Connect the Output Signals .......................9 Operation ..........................10 Initial Configuration ........................10 Power Status LEDs ........................10 Modbus Communication LED .................... -
Page 3: Precautions
MET Laboratories and are listed on the California Solar Initiative (CSI) site as approved for PBI use. 2.1 Additional Literature See the Continental Control Systems, LLC website (https://ctlsys.com) for product pages, datasheets, and support pages for all WattNode meter models and current transformers. Each WattNode model has an... -
Page 4: Electrical Service Types
Continental Control Systems LLC Monitoring Device ODBUS ® A−, D0, RxD−/TxD− Ground WNC- 3Y-xxx B+, D1, RxD+/TxD+ WNC- 3D-xxx Common ØA ØA CT Status WHITE ØB ØB CT Status BLACK ØC ØC CT Status Source Faces Phase A Phase B... - Page 5 Table 1 above lists the WattNode models and common circuit types. In the “Electrical Service Types” column, when two voltages are listed with a slash between them, they indicate the line-to- neutral / line-to-line voltages. The “Line-to-Neutral” and “Line-to-Line” columns show the operating ranges for the WattNode meters.
- Page 6 Ground ØA ØB ØC 2.2.5 Three-Phase Four-Wire Wye with Neutral This is a common commercial and industrial service. Ground Neutral ØA ØB ØC 2.2.6 Three-Phase Four-Wire Delta with Neutral (Wild Leg) The uncommon four-wire delta electrical service is a three-phase delta service with a center-tap on one of the transformer windings to create a neutral for single-phase loads.
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Page 7: Installation
3 Installation 3.1 Installation Checklist See the sections referenced below for installation details. □ Turn off power before making line voltage connections. □ Mount the WattNode meter (see 3.2). □ Connect circuit breakers or fuses and disconnects (see 3.3.1). □ Connect the line voltage wires to the meter’s green terminal block (see 3.3.2). -
Page 8: Connect Current Transformers
3.3.2 Line Wiring ● Always turn off power before connecting the line voltage inputs to the meter. ● For the line voltage wires, CCS recommends 16 to 12 AWG stranded wire, type THHN, MTW, or THWN, 600 V. ● Do not place more than one voltage wire in a screw terminal; use separate wire nuts or termi- nal blocks if needed. -
Page 9: Connect The Output Signals
Install the CTs around the conductor to be measured and connect the CT leads to the meter. Al- ways turn off power before disconnecting any live conductors. Split-core CTs can be opened for installation around a conductor. A nylon cable tie may be se- cured around the CT to prevent inadvertent opening. -
Page 10: Operation
Select the baud rate by setting DIP switch position 8 (see below). The change will take effect im- mediately. 38,400 baud may be factory configured (Opt 38K) or programmed using the BaudRate register. Baud Rate DIP Switch 8 9,600 (default) 0, Down 19,200 1, Up... - Page 11 Yellow Green Yellow Green Yellow Green 1.0sec 1.0sec 1.0sec 4.2.2 Positive Power Any phase with the LEDs flashing green is indicating normal positive power. Green Off Green Off Green Off 4.2.3 No Power Any phase with a solid green LED indicates no power, but line voltage is present. Green 4.2.4 No Voltage Any phase LED that is off indicates no voltage on that phase.
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Page 12: Modbus Communication Led
For other LED patterns, see the Operating and Reference Guide or contact support for assis- tance. 4.3 Modbus Communication LED Near the upper left corner, there is a diagnostic Com (communication) LED that can indicate the following: ● Green Off A short green flash indicates a valid packet addressed to this device. -
Page 13: Measurement
WattNode Revenue Models: ● Meets the ANSI C12.1-2008 standard for revenue metering when used with IEEE C57.13 class 0.6 current transformers. Includes a certificate of calibration. 5.2 Measurement Update Rate: 1.0 second. Internally, all measurements are performed at this rate. Start-Up Time: ~1.0 second. -
Page 14: Eia Rs-485 Interface
Maximum Power Supply Voltage Range: -20% to +15% of nominal (see table above). For the 3D-240 service, this is -20% of 208 Vac (166 Vac) to +15% of 240 Vac (276 Vac). Operating Frequencies: 50/60 Hz Measurement Category: CAT III Measurement category III is for measurements performed in the building installation or on the load side of the main service breaker. -
Page 15: Environmental
Voltage Dips, Interrupts: EN 61000-4-11 Emissions: ● FCC Part 15, Class B ● EN 55022: 1994, Class B Revenue Metering: ● ANSI C12.1-2008 5.6 Environmental Operating Temperature: -40°C to +75°C (-40°F to 167°F) Altitude: Up to 2000 m (6560 ft) Operating Humidity: non-condensing, 5 to 90% relative humidity (RH) up to 40°C, decreasing linearly to 50% RH at 55°C. -
Page 16: Warranty
5.9 Warranty All products sold by Continental Control Systems, LLC (CCS) are guaranteed against defects in material and workmanship for a period of five years from the original date of shipment. CCS’s responsibility is limited to repair, replacement, or refund, any of which may be selected by CCS at its sole discretion.
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