CCS WattNode Plus WNC-3Y-208-FT10 User manual

WattNode®Plus
for LONWORKS®
Installation and Operation Manual
●WNC-3Y-208 -FT10
●WNC-3Y-400-FT10
●WNC-3Y-480-FT10
●WNC-3Y-600 -FT10
●WNC-3D-240-FT10
●WNC-3D-400-FT10
●WNC-3D-480-FT10
Rev 3.37b
(M6)
Test Equipment Depot - 800.517.8431 - 5 Commonwealth Ave, Woburn MA 01801 - TestEquipmentDepot.com

2
FCC Information
This equipment has been tested and complies with the limits for a Class B digital device, pursu-
ant to part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
The FCC limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful interfer-
ence to radio communications. However, there is no guarantee that interference will not occur in
a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged
to try to correct the interference by one or more of the following measures:
●Reorient or relocate the receiving antenna.
●Increase the separation between the equipment and receiver.
●Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
●Consult the dealer or an experienced radio/TV technician to help.
Information in this document is subject to change without notice.
©2009-2011 Continental Control Systems, LLC. All rights reserved.
Printed in the United States of America.
Document Number: WNC-FT10-3.37b
Revision Date: November 30, 2011
Continental Control Systems, LLC.
3131 Indian Rd.
Boulder, CO 80301
[phone]
FAX: [phone]
E-mail: [e-mail]
Web: http://www.ccontrolsys.com
WattNode is a registered trademark of Continental Control Systems, LLC.
LonWorks, Echelon, Neuron, LonTalk, LON, LNS, and LonMaker are registered trademarks of Echelon
Corporation.
LonMark and the LonMark Logo are managed, granted, and used by LonMark International under a
license granted by Echelon Corporation.
Tridium, JACE, Niagara Framework, NiagaraAX and Vykon are registered trademarks of Tridium Inc.

Contents 3
Contents
Overview ................................................................................................................................5
Measurements ................................................................................................................................ 5
Communication ............................................................................................................................... 5
Options ........................................................................................................................................... 5
Current Transformers....................................................................................................................... 6
Additional Literature......................................................................................................................... 6
Front Label ...................................................................................................................................... 6
Installation .............................................................................................................................9
Precautions ..................................................................................................................................... 9
Electrical Service Types..................................................................................................................10
Single-Phase Two-Wire with Neutral .........................................................................................10
Single-Phase Three-Wire (Mid-Point Neutral) ............................................................................11
Single-Phase Two-Wire without Neutral ....................................................................................12
Three-Phase Four-Wire Wye.....................................................................................................13
Three-Phase Three-Wire Delta Without Neutral.........................................................................14
Three-Phase Four-Wire Delta (Wild Leg) ...................................................................................14
Grounded Leg Service .............................................................................................................14
Mounting........................................................................................................................................15
Selecting Current Transformers ......................................................................................................16
Connecting Current Transformers...................................................................................................17
Circuit Protection............................................................................................................................18
Connecting Voltage Terminals.........................................................................................................19
Connecting LonWorks Network Wiring............................................................................................19
Installation Summary ..................................................................................................................... 20
Service LED .................................................................................................................................. 20
Communication Troubleshooting ....................................................................................................21
Measurement Troubleshooting....................................................................................................... 22
Network Configuration ........................................................................................................25
Identifying the WattNode ............................................................................................................... 25
Network Reinitialization.................................................................................................................. 25
Operating Instructions.........................................................................................................26
Quick Start.................................................................................................................................... 26
WattNode Basic Configuration ................................................................................................ 26
Verify Operation ...................................................................................................................... 26
Measurement Overview........................................................................................................... 26
Network Variables ..........................................................................................................................27
Authentication ..........................................................................................................................27
General Variables (NodeObject) ..................................................................................................... 28
Energy Variables............................................................................................................................ 29
Power Variables............................................................................................................................. 30
Demand Variables (DemandMeas) ..................................................................................................31
Voltage Variables ........................................................................................................................... 33
Frequency Register........................................................................................................................ 33
Current Registers .......................................................................................................................... 33
Power Factor Registers.................................................................................................................. 33
Reactive Power Registers .............................................................................................................. 34
Configuration Properties................................................................................................................ 34
Calibration Configuration Properties ........................................................................................ 36

4
WattNode Errors.............................................................................................................................37
Maintenance and Repair.................................................................................................................37
Specifications ......................................................................................................................38
Models .......................................................................................................................................... 38
Model Options ........................................................................................................................ 38
Firmware ................................................................................................................................. 38
Accuracy................................................................................................................................. 38
Measurement ................................................................................................................................ 39
Electrical ....................................................................................................................................... 40
Certifications ..................................................................................................................................41
Environmental.................................................................................................................................41
Mechanical.....................................................................................................................................41
Current Transformers......................................................................................................................41
Warranty...............................................................................................................................43
Limitation of Liability ...................................................................................................................... 43

Overview 5
Overview
Congratulations on your purchase of the WattNode®Plus for LonWorks®watt/watt-hour trans-
ducer. The WattNode meter offers precision energy and power measurements in a compact
package. It enables you to make power and energy measurements within existing electric service
panels avoiding the costly installation of subpanels and associated wiring. It is designed for use
in demand side management (DSM), sub-metering, and energy monitoring applications. Models
are available for single-phase, three-phase wye, and three-phase delta configurations for voltages
from 120 Vac to 600 Vac at 50 and 60Hz.
The WattNode®Plus for LonWorks is LonMark®3.4 certified, ensuring plug-and-play interoper-
ability on LonWorks networks.
Continental Control Systems also provides a free LNS plug-in for use with the WattNode meter.
The plug-in simplifies configuration and browsing.
Measurements
The WattNode Plus transducer measures the following:
●True RMS Power: (Watts) Phase A, Phase B, Phase C, Sum
●Reactive Power: (VARs) Phase A, Phase B, Phase C, Sum
●Power Factor: Phase A, Phase B, Phase C, Average
●True RMS Energy: (Kilowatt-hours) Phase A, Phase B, Phase C, Sum
●Reactive Energy: (kVAR-hours) Sum
●AC Frequency: (Hertz)
●RMS Voltage: (Volts) Phase A, Phase B, Phase C
●RMS Current: (Amps) Phase A, Phase B, Phase C
●Demand and Peak Demand: (Watts)
Communication
The WattNode meter communicates on a LonWorks TP/FT-10 free topology twisted-pair network
using Echelon’s®LonTalk®network protocol. Network variables interface the WattNode to the
network. Each device on the network may have both input and output network variables. Output
network variables may be polled or bound (connected) to input network variables of the same
type. Whenever an output network variable is updated, the new value is propagated over the
network, and all devices which have input network variables bound to the updated output will
update their internal copies of the variable.
Options
The WattNode for LonWorks meter can be ordered with several options. For more details and
documentation, see article WattNode Plus for LonWorks - Options on our website.
●Option CT=xxx - Factory configure xxx as the nciCtAmps value.
●Option PT - Improves support for potential transformers (PTs), making it easier to
use the WattNode meter with medium voltage services. Specifically, Option PT adds
a configuration property UCPTptRatio which configures the ratio of the external PT,
allowing the meter to automatically scale the voltage, power, and energy readings. See
WattNode LonWorks - Option PT.
●Option B - Emulates the interface and behavior of the original WNB series WattNode Plus
models (model numbers WNB-xx-xxx-FT10).
●Option BI - Emulates the interface and behavior of the original WNB series WattNode Plus
models (model numbers WNB-xx-xxx-FT10) with 16 bit integer network variables (SNVTs).
●Logger - Adds data logging and a real-time clock. See WattNode Logger for LonWorks.

Overview 7
C: Neutral. On wye models, this terminal must be connected to neutral. On delta models, it is
good practice to connect this terminal to the safety ground terminal using a short jumper wire.
D, E, F: Mains line inputs. One or more of these terminals are connected to the mains lines. For
three phase measurement, the ØA(phase A), ØB(phase B), and ØC(phase C) terminals are
used for the three phases. On wye WattNode models, the meter is powered from the Nand ØA
terminals. On delta models, the meter is powered from the ØAand ØBterminals.
G: Line voltage measurement ratings. This block lists the nominal line-to-neutral “Ø-N 120V~”
voltage, line-to-line “Ø-Ø 240V~” voltage, and the rated measurement voltage and category
“240V CAT III” for this model. See Specifications – Electrical (p. 40)for more information
about the measurement voltage and category.
H: UL Listing mark. This shows the UL and cUL (Canadian) listing mark and number “3KNN”.
I: FCC Mark. This logo indicates that the meter complies with part 15 of the FCC rules.
J: Current transformer (CT) voltage rating. These markings “0.333V~” indicate that the meter
must be used with CTs that generate a full-scale output voltage of 0.33333 Vac (333.33 mil-
livolts AC).
K, L, M: Current transformer (CT) inputs. These indicate CT screw terminals. Note the white
and black circles at the left edge of the label: these indicate the color of the CT wire that should
be inserted into the corresponding screw terminal. The terminals marked with black circles are
connected together internally.
N: FT10 wiring terminals. These connect to the LonWorks FT-10 network. They are polarity
insensitive.
O: LonWorks service LED. The LonWorks service LED indicates network status; see Service
LED (pg 26). Immediately below the LED on the side of the housing is the service button, used
to identify the WattNode meter on the LonWorks network.
P: Firmware version. This indicates the WattNode meter’s firmware version.
Q: Serial number. This shows the WattNode meter’s serial number.
R: LonMark. This logo indicates that the meter meets LonMark interoperability guidelines, v3.4.
S: Mains supply rated voltage. This is the rated supply voltage for this model. The V~indicates
AC voltage. For wye models, this voltage should be applied between the Nand ØAterminals.
For delta models, this voltage should be applied between the ØAand ØBterminals.
T: Neuron ID. This is the Neuron®ID (prefixed by “NI”), which is a unique 64 bit hexadecimal
number assigned to each LonWorks device.
U: Mains frequencies. This indicates the rated mains frequencies for the meter.
V: Maximum rated power. This is the maximum power consumption (watts) for this model.
X: CE Mark. This symbol indicates that the WattNode meter complies with the regulations of the
European Union for Product Safety and Electro-Magnetic Compatibility.
Y: Caution, risk of electrical shock. This symbol indicates that there is a risk of electric shock
when installing and operating the meter if the installation instructions are not followed correctly.
Z: Attention - consult Manual. This symbol indicates that there can be danger when installing
and operating the meter if the installation instructions are not followed correctly.

10 Installation
Electrical Service Types
Below is a list of service types, with connections and recommended models. Note: the ground
connection improves measurement accuracy, but is not required for safety.
Model Type Line-to-
Neutral
Line-to-
Line
Electrical
Service Types
WNC-3Y-208-FT10 Wye 120 Vac 208–240
Vac
1 Phase 2 Wire 120V with neutral
1 Phase 3 Wire 120V/240V with neutral
3 Phase 4 Wire Wye 120V/208V with neutral
WNC-3Y-400-FT10 Wye 230 Vac 400 Vac 1 Phase 2 Wire 230V with neutral
3 Phase 4 Wire Wye 230V/400V with neutral
WNC-3Y-48 0 -FT10 Wye 277 Vac 480 Vac 3 Phase 4 Wire Wye 277V/480V with neutral
1 Phase 2 Wire 277V with neutral
WNC-3Y-6 0 0 -FT10 Wye 347 Vac 600 Vac 3 Phase 4 Wire Wye 347V/600V with neutral
WNC-3D-240-FT10 Delta
or Wye
120 –140
Vac
208–240
Vac
1 Phase 2 Wire 208V (no neutral)
1 Phase 2 Wire 240V (no neutral)
1 Phase 3 Wire 120V/240V with neutral
3 Phase 3 Wire Delta 208V (no neutral)
3 Phase 4 Wire Wye 120V/208V with neutral
3 Phase 4 Wire Delta 120/208/240V with neutral
WNC-3D-400-FT10 Delta
or Wye 230 Vac 400 Vac 3 Phase 3 Wire Delta 400V (no neutral) 3 Phase 4 Wire Wye 230V/400V with neutral
WNC-3D-480-FT10 Delta
or Wye 277 Vac 480 Vac
3 Phase 3 Wire Delta 480V (no neutral)
3 Phase 4 Wire Wye 277V/480V with neutral
3 Phase 4 Wire Delta 240/415/480V with neutral
*The wire count does NOT include ground. It only includes neutral (if present) and phase wires.
Table 1 : WattNode Models
Single-Phase Two-Wire with Neutral
This configuration is most often seen in homes and offices. The two conductors are neutral and
line. For these models, the meter is powered from the Nand ØAterminals.
Figure 2: Single-Phase Two-Wire Connection
Ground
WHITE
BLACK
ØB CT
ØC CT
ØA CT
ØB
ØC
N
ØA
FT10 Network
Service
FT10
Continental Control Systems LLC
WNC-
WATTNODE® PLUS
-FT10
Line
Neutral
LINE
LOAD
Shorting
Jumpers
Source
Face
Current
Transformer
3Y-xxx
Test Equipment Depot - 800.517.8431 - 5 Commonwealth Ave, Woburn MA 01801 - TestEquipmentDepot.com