CONTINENTAL CONTROL SYSTEMS WattNode BACnet Series, WattNode Revenue Series, WattNode Plus Series, WattNode Logger Series, WNC-3Y FT10 Series Installation Manual

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Page 1

Ground

WHITE

BLACK

ØB CT

ØC CT

ØA CT

ØB

ØC

ØA

Common

B+, D1, RxD+/TxD+

EIA-485

PC or BACnet Host

A−, D0, Rx D−/ TxD−

Continental Control Systems LLC

Status

MS/TP

Com

WNCWNC-

ATTNODE

BAC

NET

-BN

Neutral

Phase A Phase B Phase C

LOAD

WHITE

BLACK

WHITE

BLACK

LINE

Source

Faces

Current

Transformers

3Y-xxx 3D-xxx

WattNode

Series - Service - Interface Options

RWNC = Revenue, third generation

BaCNet

and

WattNode® ReveNue

Electric Power Meter Installation Manual

______ - _______ - ________

3Y-208 3Y-400 3Y-480 3Y-600 3D-240

BN = BACnet

3D-400 3D-480

WNC = Third generation

See website for options

1 Precautions

1.1 Only qualified personnel or licensed electricians should inst all the Wat tN ode me ter. The

mains voltages of 120 to 600 Vac can be lethal!

1.2 Follow all applicable local and national electrical and safety codes.

1.3 T he termina l block sc rews are not insulated. Do not cont ac t met al too ls to th e sc rew ter mi nals if the circuit is live!

1.4 Veri fy that circui t voltages and cur rents are within the proper range for the meter model.

1.5 Us e only UL liste d or UL reco gnized curr ent transformers (CTs) with built-in burden resistors, that generate 0.333 Vac (333 millivolts AC) at rated cur rent. Do not u se curr ent out put

(ratio) CTs such as 1 a mp or 5 a mp ou tpu t CTs: they will des troy the me ter and ma y create a shock hazard.

1.6 Protect the line voltage inputs to the meter with

fuses or c ircuit breake rs (not needed for t he neutral or ground wires). See 3.3.1 below.

1.7 Equipment must be disconnected from the HAZARDOUS LIVE voltages before access.

1.8 If the meter is not installed correctly, the safety protections may be impaired.

Figure 1: WattNode Wiring Diagram

Electrical

Service (or Load) Types

1 Phase 2 Wire 120V with neutral 96 – 138 n.a. 3Y-208 N and ØA 1 Phase 2 Wire 230V with neutral (non-U.S.) 184 – 264 n.a. 3Y-400 N and ØA 1 Phase 2 Wire 277V with neutral 222 – 318 n.a. 3Y-480 N and ØA 1 Phase 2 Wire 208V no neutral n.a. 166 – 276 3D-240 ØA and ØB 1 Phase 2 Wire 240V no neutral n.a. 166 – 276 3D-240 ØA and ØB

1 Phase 3 Wire 120V/240V with neutral 96 – 138 166 – 276 3 Phase 3 Wire Delta 208V no neutral n.a. 166 – 276 3D-240 ØA and ØB

3 Phase 3 Wire Delta 400V no neutral (non-U.S.) n.a. 320 – 460 3D-400 ØA and ØB 3 Phase 3 Wire Delta 480V no neutral n.a. 384 – 552 3D-480 ØA and ØB

3 Phase 4 Wire Wye 120V/208V with neutral 96 – 138 166 – 276 3 Phase 4 Wire Delta 120/208/240V with neutral 96 – 138 166 – 276 3D-240 ØA and ØB

3 Phase 4 Wire Wye 230V/400V with neutral (non-U.S.)

3 Phase 4 Wire Wye 277V/480V with neutral 222 – 318 384 – 552 3 Phase 4 Wire Delta 240/415/480V with neutral 222 – 318 384 – 552 3D-480 ØA and ØB

3 Phase 4 Wire Wye 347V/600V with neutral 278 – 399 480 – 690 3Y-600 N and ØA

Table 1: WattNode Models

Line-to-

Neutral

(Vac)

184 – 264 320 – 460

Line-to-

Line

(Vac)

WattNode

Service

Type

3Y-208 N and ØA

3D-240 ØA and ØB

3Y-208 N and ØA

3D-240 ØA and ØB

3Y-400 N and ØA

3D-400 ØA and ØB

3Y-480 N and ØA

3D-480 ØA and ØB

Meter

Powered

1.9 Symbols

Read, understand, and follow all instructions including warnings and precautions before installing and using the product.

Potential Shock Hazard from Dangerous High Voltage.

Functional ground; should be connected to earth ground if possible, but is not required for safety grounding.

UL Listin g mark. This s hows the UL an d cUL (Canadia n) listing mark.

FCC Mark. This logo indicates compliance with part 15 of the FCC rules.

Complie s with t he regul ation s of the Euro pean Uni on for Pr oduct Safety and Electro-Magnetic Compatibility.

• Low Voltage Directive – EN 61010-1: 2001

• EMC Directive – EN 61327: 1997 + A1/1998 + A2/2001

This indicates an AC voltage.

2 Overview

Congrat ulati ons on yo ur pur chas e of the Wat tN ode® BACnet® watt/ watt -hou r transducer (meter). The WattNode mete r enables you t o make power and energy measurements within electric service panels avoiding the costly installation of subpanels and associated wiring. It is designed for use in demand side management (DSM), submetering, and energy monitoring applications. The WattNod e meter commun icates on an EI A RS- 485 two -wire bu s using the BACnet protocol.

2.1 Additional Literature

See the Continental Control Systems, LLC website (www.ccontrolsys.com) for product pages, datasheets, and support pages for all WattNode meter models and cur rent tr ansfor mers. E ach Watt Node m odel has a n Operating and

Reference Guide with detail ed inform ation on th e available mea surements

and interface.

2.2 Electrical Service Types

Tab l e 1 a bove lists the Wat tNode m odels and c ommon ci rcuit ty pes. In the

“Elect ric al Ser vi ce Types” col umn, whe n two vol tage s are liste d with a s lash 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 2

Connect the line voltages to the meter inputs as shown in the following figures

Ground

for each service type. See Figure 1 above for an overview.

2.2.1 Single-Phase Two-Wire with Neutral

This is a co mm o n re si d ent ia l an d b ra nc h c i rc ui t c o nn ec t i on . Up to t h re e su ch circuits may be monitored with one meter by also using the ØB and ØC inputs.

ATT

ØA

ODE

ØB

ØC

2.2.2 Single-Phase Two-Wire No Neutral

This circuit occurs in residential (commonly 120/240 Vac) and some commercial applications. The meter is powered from the ØA and ØB terminals. We recommend connecting the N terminal to ground to provide a clean voltage reference for the measurement circuitry (no current will flow through this terminal).

Neutral Line

ATT

ØA

ODE

ØB

ØC

2.2.3 Single-Phase Three-Wire with Neutral

This is a common residential service at 120/240 Vac.

L1 L2

ATT

ØA

ODE

ØB

ØC

2.2.4 Three-Phase Three-Wire Delta No Neutral

This is co mmon in comm ercial and in dustrial se ttings. In s ome cases, t he service may be four-wire, wye but the load may only be three wire (no neutral).

Occasionally, a load will only be connected to two of the three lines (say L1 and L2). For this case, connect the two active lines to the ØA and ØB terminals and connect two CTs for the two lines.

Neutral L1 L2

ATT

ØA

ODE

ØB

ØC

2.2.5 Three-Phase Four-Wire Wye with Neutral

This is a common commercial and industrial service.

L1 L2 L3

ATT

ODE

ØA ØB

ØC

Neutral L1 L2 L3

the high le g of a four-w ire th ree - phas e delt a ser v ic e to be lab ele d as the “ C” phase instea d of the “ B ” pha se. The Wat tN od e meter w ill wo rk c or rec tly w ith the high-leg connected to ØA, ØB, or ØC.

See the web article Four Wire Delta Circuits for more information.

ATT

ØA

ODE

ØB

ØC

2.2.7 Grounded Leg Service

In rare cases with delta services or single-phase two-wire ser vices without neutral, one of the phases may be grounded.

The WattNode meter will correctly measure services with a grounded leg, but the measur e d vo l t a g e a n d p o we r f o r t h e g r o u n d e d p h a s e w i l l b e ze r o a n d t h e status LEDs (if present) will not light for the grounded phase, because the voltage is near zero. Also, this type of service may result in unusual power factors.

See the web article Grounded Leg Services for more information.

3 Installation

3.1 Installation Checklist

See the sections referenced below for installation details.

□

Mount the WattNode meter (see 3.2).

□

Turn off power before making line voltage connections.

□

Connect circuit breakers or fuses and disconnects (see 3.3.1).

□

Connec t th e lin e volt a ge w ire s to t he met er ’s gre en te rm ina l bl oc k (see

3.3.2).

□

Mount the CTs around th e li n e c o n du c to r s . M ake su re t h e CTs face th e source (see 3.4).

□

Connec t the twis ted white and bla ck wires fr om the CTs to the black terminal b lock o n the meter, matchi ng the wi re col ors to th e white and black dots on the meter label (see 3.4.1).

□

Check that the CT phases match the line voltage phases (see 3.4).

□

Record t he CT r ate d c u r re nt f or e ac h m ete r, becau se i t w il l be r eq ui re d during commissioning.

□

Connec t the out put ter minals o f the Watt Nod e meter to th e monit orin g equipment (see 3.5).

□

Check tha t all th e wi res ar e sec ur ely in sta lle d in th e ter min al bl oc ks by tugging on each wire.

□

Apply power to the meter.

□

Verify that the LEDs indicate correct operation (see 4.2, 4.3).

3.2 Mounting

● Protect th e me ter f r o m te mp er at ur e s be l ow –30°C (-2 2 ° F) o r a bove 5 5° C (13 1°F), excessive moisture, dust, salt spray, or other contamination, using a NEMA rated enclosure if necessary. The meter requires an environment no worse than pollution degree 2 (normally only non-conductive pollution; occasionally, a temporary conductivity caused by condensation).

● The meter must b e inst alle d in an el ec tri cal s er vi ce pa nel, an e ncl osure, or a limited access electrical room.

● Do not use the meter as a dr illin g guid e; the dr ill c huck c an da mage t he screw terminals and metal shavings may fall into the connectors.

The meter has two mounting holes spaced 136.6 mm (5.375 in) apart (centerto- center). Thes e mounting ho les are nor mally obsc ured by the detac hable screw ter mina ls. Rem ove the sc rew te rmi nals t o mar k the h ole p osi tio ns and mount the meter.

Self-tapping #8 sheet metal screws are included. Don’t over -tighten the screws, as long-term stress on the case can cause cracking.

Neutral L1 L2 L3

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 cent er-tap on one of t he transfo rmer wind ings to creat e a neutral fo r single-phase loads.

The high-leg or phase with the higher voltage as measured to neutral has traditional ly b een d es ig nate d “ Ph ase B ”. A chang e to t he 2 0 0 8 N EC now al low s

3.3 Connect Voltage Terminals

3.3.1 Circuit Protection

The WattNode meter is considered “permanently connected equipment” and requires a disconnect means (circuit breaker, switch, or disconnect) and overcurrent protection (fuse or circuit breaker).

Page 3

The meter onl y dr aws 10-30 m il lia mps , so t he r at ing o f any swi tc he s, di sc o n -

nects, fuses, and/or circuit breakers is determined by the wire gauge, the mains voltage, and the current interrupting rating required.

● The switch, disconnect, or circuit breaker must be as close as practicable to the meter and must be easy to operate.

● Use circuit breakers or fuses rated for 20 amps or less.

● Use ganged circuit breakers when monitoring more than one line voltage.

● The circ uit breakers o r fuses must pr otect the mai ns terminal s labeled ØA, ØB, and ØC. If neut ral i s als o pr otec ted , the n th e overc ur rent p rot ec - tion devic e must interr upt both neut ral and the un grounded c onducto rs simultaneously.

● The circuit protection / disconnect system must meet IEC 60947- 1 and IEC 60947-3, as well as all national and local electrical codes.

3.3.2 Line Wiring

● Always disconnect power before connec ting the li ne voltag e 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 terminal blocks if needed.

● Verif y t hat t he li ne vo lta ge s matc h th e lin e - to - li ne Ø- Ø and line-to- neutral Ø-N values printed in the white box on the front label.

Connect each line voltage to the appropriate phase; also connect ground and neutral (if applicable). The neutral connection “N“ is not required on delta models (3D-240, 3D-400, and 3D-480), but we recommend connecting it to ground if neutral is not present.

The screw te r m in a ls h an d le w i re u p to 12 AWG. Con n ect each volt a g e li ne t o the green te rmi nal bl ock as s hown i n Figu re 1 ab ove. Af ter th e volta ge lin es have been con nec ted, m ake sure bo th ter min al bl ock s are fu lly se ated in t he meter.

When power is first applied, check that the LEDs behave normally: on models with status LEDs, if you see them flashing red-green-red-green (see Figure 7), the line voltage is too high for this model, so disconnect the power immediately!

3.3.3 Grounding

The WattNode uses a plastic enclosure, insulation, and internal isolation barriers in stead of pr otective e art hing. Th e ground te rminal o n the gre en screw terminal b lock i s a func tion al groun d, desi gned to im prove the m easure ment accurac y and noi se immun ity. If nece ssar y, this ter minal may b e left d isco nnected on wye models (-3Y).

3.4 Connect Current Transformers

To meet the UL listing requirements, the WattNode meter may only be used with these UL listed or recognized current transformer models. These all genera te

333.3 3 mi lli volt s AC at ra ted c ur re nt. S ee t he c ur re nt tr ans fo r mer d at ash eet s for CT ratings.

ACT-0750-xxx CTL-1250-xxx CTM-0360-xxx CTS-0750-xxx CTS-1250-xxx CTS-2000-xxxx CTB-wwwXhhh-xxxx CTBL-wwwXhhh-xxxx CTT-0300-xxx CTT-0500-xxx CTT-0750-xxx CTT-1000-xxx CTT-1250-xxx

● “xxx” indicates the full scale current rating.

● “www” and “hhh” indicate the width and height in inches.

● “dddd” indicates the opening diameter of the loop for flexible Rog owski CTs.

See the web artic le Selec ting Current Transformers for information on selecting appropriate current transformers (CTs).

● Do not use ra tio or cur rent output C Ts such as 1 amp or 5 amp output models!

● See the CT datasheets for the maximum input current ratings.

● Be careful to match the CTs with the voltage phases. Make sure the ØA CT is measur in g t he c u r re nt o n t he s a me p ha s e be in g m on it or e d by ØA, a nd the same fo r p ha s e s B an d C. U s e t he s up p l i ed colore d l ab e l s o r colore d tape to identify the CT leads.

● To minimize current measurement noise, avoid extending the CT wires, especially in noisy environments. If it is necessary to extend the wires, use twisted pair wire 22 to 14 AWG, rated for 300 V or 600 V (not less than the service voltage) and shielded if possible.

● Find the source arrow or label “THIS SIDE TOWARD SOURCE” on the CT and face/point toward the source of current.

● OPTIO NA L: if you se e spur ious r eading s on unus ed phas es, jum per th e unused CT inp uts: for each unus ed CT, connect a shor t wire fro m the terminal marked with a white dot to the terminal marked with a black dot.

To install the CTs, pass the conductor to be measured through the CT and connect the CT leads to the meter. Always remove power before disconnecting

any live con ducto rs. Put th e line cond uctors t hrough the CTs as shown in Figure 1 above.

CTs are directional. If they are mounted backwards or with their white and black wires swapped the measured power will be negative. The status LEDs indicate negative measured power by flashing red.

Split-core CTs can be opened for installation around a conductor. A nylon cable tie may be secured around the CT to prevent inadvertent opening.

3.4.1 CT Wiring

Connec t the w hite a nd bl ack CT w ire s to the m eter te rm inal s mar ked ØA CT, ØB CT , and ØC CT (see Figure 1 above). Excess length may be trimmed from

the wires if desired. The current transformers connect to the six position black screw ter minal bloc k. Conne ct each CT wi th the white w ire aligne d with the white dot on t he l ab el , an d th e b lac k w i re a li gn e d wi t h th e bl ac k d ot . N ote t h e order in wh ich the phas es are conn ected, as th e line voltage p hases must match the current phases for accurate power measurement.

3.5 Connect the Output Signals

● The meter outputs are isolated from dangerous voltages, so you can con- nect them at any time.

● If the outp ut wir ing i s near li ne volt age w ir ing, us e wire s or c abl es wit h a 300 V or 600 V rating (not less than the service voltage).

● If the outp ut w i ring is near b a r e c o n d u c to rs, it shoul d b e d o u bl e i n su la te d or jacketed.

● You may install two wires into each screw terminal by twisting the wires to- gether, inserting them into terminal, and securely tightening. Note: a loose wire can disable an entire network section.

● Use twisted-pair cable (unshielded or shielded) to prevent interference.

3.5.1 BACnet MS/TP

The WattN o d e BACn et m ete r can be con n ected to BACnet m on it o r i ng e q ui pment, gateways, and other BACnet devices.

Use DIP switches 1-6 to select the BACnet MAC address (0 to 63).

DIP Switch 1 2 3 4 5 6

Up (1) Value 1 2 4 8 16 32

Address Examples

1 1, Up 0, Down 0, Down 0, Down 0, Down 0, Down 1+2+4 = 7 1, Up 1, Up 1, Up 0, Down 0, Down 0, Down 4+16 = 20 0, Down 0, Down 1, Up 0, Down 1, Up 0, Down

1+2+16+32 = 51 1, Up 1, Up 0, Down 0, Down 1, Up 1, Up

Select t he b au d r ate by s etting DI P sw it c h p o si t io n s 7 an d 8 a s sh ow n b e l ow. The change will take effect in approximately ten seconds.

Baud Rate DIP Switch 7 DIP Switch 8

9,600 (default) 0, Down 0, Down

19,200 1, Up 0, Down 38,400 0, Down 1, Up 76,800 1, Up 1, Up

3.5.2 Connect RS-485

485

A-B+C

ATTNODE

B C X

WATTNODE

B C X

Page 4

● RS-485 wiring can be complex when multiple devices are connected, when

Green

Off

Green

Off

Green

Off

1.0sec

Green

Off

Yellow

Off

Red

YR YR YR

running w ires for lo ng distances, and wh en using terminatio n and biasing resistor s. If you have any quest ions, co nsult the Operating and Refer-

ence Guide.

● Be sure to connect the A-, B+, and C ( common) terminals. The X terminal is norma lly not use d. You may use the cab le shie ld (if pr esent) for t he C connection.

● For long distances, use shielded twisted-pair cable to prevent interference. With shielded cable, connect the shield to earth ground at one end.

● RS- 48 5 wir ing may b e daisy- ch aine d bet ween mete rs, w ith up to 6 4 de - vices per subnet.

4 Operation

4.1 Initial Configuration

Generally, the network integrator will remotely configure the WattNode meter and the variables. For details on configuring the WattNode meter, see the appropriate Operating and Reference Guide for your model.

The meter does not include a display or buttons, so it is not possible to configure or monitor t he m ete r di re ct ly, other t ha n th e ba si c LED di ag no st ic s d es c r ib ed below.

At a minimum, t he CtAmps must be pro gra mme d wit h th e rate d amps o f the attached current transformers for accurate measurements.

4.2 Power Status LEDs

The three status LEDs on the front of the meter can help indicate correct measurements a nd ope ratio n. The “A”, “ B”, and “C” on the dia grams i ndic ate the three phases.

4.2.1 Normal Startup

The meter dis plays the foll owing star tup seque nce whenever p ower is fir st applied.

GreenYellowRed

1.0sec1.0sec

4.2.2 Positive Power

Any phase with the LEDs flashing green is indicating normal positive power.

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.

GreenYellowRed GreenYellowRed

1.0sec

4.2.7 Meter Not Operating

If none of the LEDs light, then check that the correct line volt ages are applied to the meter. If the voltages are correct, call customer service for assistance.

Off Off Off

4.2.8 WattNode Error

If the meter exp er i enc e s an in ter na l er r or, it will li ght a ll LED s re d fo r th ree o r more seconds. If you see this happen repeatedly, return the meter for service.

Red

Red Red

3.0sec

For other LED patterns , see the Operating and Reference Guide or cont a ct support for assistance.

4.3 Communication LED

Near the up per left c orner, there i s a diagnosti c Com (communication) LED that can indicate the following:

● this device.

● ets addres s e d to d iffere nt dev i ces. The BACn et m o d e l w i ll o n l y sh o w t hi s indication if it has received no packets addressed to this device for several seconds.

● baud rate, bad CRC, noise, bad parity, etc.

● dress conflict (two devices with the same DIP switch address).

● is the sole master device on the network. It will scan continuously for other devices until another device is found.

A shor t green f las h indic ates a val id pac ket addres sed to

Short yell ow fl ashes o r rapi d fla shing i ndic ate valid p ack-

A one second red flash indicates an invalid packet: bad

Rapid red/yellow flashing indicates a possible ad-

Yellow

Solid yellow indicates that this meter believes it

4.4 Monitoring

The meter do es no t inc lu de a di spl ay or but t ons , so it i s not p os sib le to o pe rate the meter di rectly. The fol lowing is a brief overview of the possible remote monitoring.

WattNode BACnet models communicate measurements over a BACnet MS/ TP network. The measurements include: energy, power, voltage, current, line frequency, power factor, reactive power, and demand.

In order to mo n it o r an d confi g ur e n etworked WattNode m odels, you w il l n ee d an appropriate monitoring solution, either standalone or PC software.

See the Operating and Reference Guide for a c omp lete lis t of net work a ccessible variables.

4.2.5 Negative Power

Red flashing indicates negative power for that phase. Reversed CTs, swapped CT wires, or CTs not matched with line voltage phases can cause this.

Off

Red

4.2.6 Overvoltage Warning The following indicates that the line voltage is too high for this model. Discon-

nect power immediately! Check the line volta ges and t he meter r atings (i n

the white box on the label).

GR GR GR GR GR GR GR GR GR GR GR GR GR GR

Red

Off

Red

Off

GR GR GR GR

4.5 Maintenance and Repair

The WattN od e mete r re qui res n o ma inte nan c e. It is n ot us er se rvice ab le an d there are no replaceable parts except the pluggable screw terminals. There are no diagnostic tests that can be performed by the user, other than checking for errors via the communications interface or the status LEDs.

In the event of any failure, the meter must be returned for service (contact CCS for an RMA). For a n ew i ns t a l la t i o n, f o ll o w t h e di a gn o s t i c an d t r o u b le s h o o t in g instructions in the Operating and Reference Guide before returning the meter for service, to ensure that the problem is not connection related.

The WattN ode m eter s houl d not n or mall y nee d to be c le aned , but if c le anin g is desired, power must be disconnected first and a dry or damp cloth or brush should be used.

Page 5

5 Specifications

The following is a list of basic specifications. For extended specifications, see the Operating and Reference Guide.

5.1 Accuracy

The following accuracy specifications do not include errors caused by the current transformer accuracy or phase angle errors. “Rated current” is the current that generates a CT output voltage of 0.33333 Vac.

5.1.1 Normal Operation

● Line voltage: -20% to +15% of nominal

● Power factor: 1.0

● Frequency: 48 - 62 Hz

● Ambient Temperature: 23°C ± 5°C

● CT Current: 5% - 100% of rated current

Accuracy: ±0.5% of reading

For accuracy at other conditions, see the reference guide.

5.2 Measurement

Update Rate: Internally, all measurements are performed at this rate.

● 1.0 second

Start-Up Time: the meter starts measuring power/ energy and reporting mea-

surements or generating pulses this long after AC voltage is applied

● ~1.3 second (energy m easureme nt star ts ~30 0 millisec onds af ter AC is applied)

Default CT Phase Angle Correction: 0.0 degrees.

5.3 Models and Electrical Specifications

The service “3Y-208” applies to the models WNC-3Y-208-BN, RWNC-3Y-208-BN, and so on for the other service types.

Service

3Y-208 120 208–240 1 - 3 2 - 4

3Y-400 230 400 1 - 3 2 - 4 3Y-480 277 480 1 - 3 2 - 4 3Y-600 347 600 1 - 3 2 - 4

3D-240 120* 208–240 1 - 3 2 - 4 3D-400 230* 400 3 2 - 4 3D-480 277* 480 3 2 - 4

* Note:thedeltamodelshaveanoptionalneutralconnectionthatmaybeused

for measuring wye circuits. In the absence of neutral, voltages are measured with respect to ground. Delta WattNode models use the phase A and phase B connections for power.

Over-Voltage Limit: 125% of nomi nal V ac. Extended o ver-voltage operation

can damage the WattNode and void the warranty.

Over- Curre nt Limit : 120% of rated cur rent. Exce eding 120% of rated c ur-

rent will not harm the WattNode meter but the current and power will not be measured accurately.

Maximum Surge: 4kV according to EN 61000-4-5 Power Consumption: The followin g tabl es show s maxi mum volt- amp eres,

the power supply ranges, typical power consumption, and typical power factor values with all three phases powered at nominal line voltages. The power supply draw s most of the tota l power cons umed, while t he measureme nt circuit r y dr aws 1-10% of the tota l (6 - 9 6 mi lli wat ts p er ph ase, d epe ndi ng on the model). D ue to th e des ign of t he p ower sup ply, WattN ode m eter s draw slightly more power at 50 Hz.

Nominal Vac

Line-to-Neutral

Table 2: WattNode Model Service Types

Nominal Vac Line-to-Line

Phases Wires

Service

3Y-208 4 VA 96 – 138 N and ØA 3Y-400 4 VA 184 – 264 N and ØA 3Y-480 4 VA 222 – 318 N and ØA 3Y-600 4 VA 278 – 399 N and ØA

3D-240 4 VA 166 – 276 ØA and ØB 3D-400 3 VA 320 – 460 ØA and ØB 3D-480 3 VA 384 – 552 ØA and ØB

Table 3: Service Volt-Amperes and Power Supply Range

(1)

Note:TheRated VA is the maximum at 115% of nominal Vac at 50 Hz. This is the same as the value that appears on the front label of the meter.

Service

Maximum Power Supply Volt age Range: -20% to +15% of nominal (see

table above). For the 3 D-24 0 ser vic e, this is - 20% of 20 8 Vac (166 Vac) to +15% of 240 Vac (276 Vac).

Operating Frequencies: 50/60 Hz Measurement Category: CAT III

Measurem ent catego ry III is f or measure ments per forme d in the build ing installation. Examples are measurements on distribution boards, circuitbreakers, wiring, including cables, bus-bars, junction boxes, switches, socket-outlets in the fixed installation, and equipment for industrial use and some other equipment, for example, stationary motors with permanent connection to the fixed installation.

The line volt age m eas urem ent ter mi nals o n the m eter ar e rate d for t he fo llowing CAT III voltages (these ratings appear on the front label):

Current Transformer Inputs:

Nominal Input Voltage (At CT Rated Current): 0.33333 Vac RMS Absolute Maximum Input Voltage: 5.0 Vac RMS Input Impedance at 50/60 Hz:23kΩ

Rated

3Y-208 1.5 W 1.8 W 0.79 3Y-400 1.6 W 1.8 W 0.73 3Y-480 1.6 W 2.0 W 0.69 3Y-600 1.0 W 1.3 W 0.76

3D-240 1.2 W 1.5 W 0.70 3D-400 1.1 W 1.4 W 0.67 3D-480 1.2 W 1.6 W 0.70

Table 4: Power Consumption

Service CAT III Voltage Rating

3Y-208

3D-240 3Y-400

3D-400 3Y-480

3D-480 3Y-600 600 Vac

Table 5: WattNode CAT III Ratings

Power Supply

(1)

Range (Vac)

Real Power

(60 Hz)

Power Supply

Real Power

(50 Hz)

240 Vac

400 Vac

480 Vac

Terminals

Power Factor

5.4 EIA RS-485 Interface

RS-485 Output Isolation: 4500 Vac RMS Driver Output:

● Voltage (Open Circuit): ±6 Vdc maximum

● Voltage (54 Ω load): ±1.5 Vdc minimum

● Current (54 Ω load): ±60 mA typical

● Rise Time (54 Ω || 50 pF load): 900 nS typical

Receiver:

● Common-Mode Range: -7 Vdc to +12 Vdc max

● Sensitivity: ±200 mV

● Bus Load: 1/8 unit load (up to 64 meters)

● Failsafe Modes: bus open, shorted, and idle

Page 6

5.5 Certifications

Safety:

● UL 61010-1

● CAN/CSA-C22.2 No. 61010-1-04

● IEC 61010-1

Immunity: EN 61326: 2002 (Industrial Locations)

Electrostatic Discharge: EN 61000-4-2 Radiated RF Immunity: EN 61000-4-3 Electrical Fast Transient / Burst: EN 61000-4-4 Surge Immunity: EN 61000-4-5 Conducted RF Immunity: EN 61000-4-6 Voltage Dips, Interrupts: EN 61000-4-11

Emissions:

● FCC Part 15, Class B

● EN 55022: 1994, Class B

5.6 Environmental

Operating Temperature: -30°C to +55°C (-22°F to 131°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.

Pollution: POLLUTION DEGR EE 2 - Norma lly only non -co nductive p ollu-

tion; occ asion ally, a temporar y co nduct ivity c aused by c onden sation m ust be expected.

Indoor Use: Suitable for indoor use. Outdoor Use: Suitable for outdoor use if mounted inside an electrical enclo-

sure (Hammond Mfg., Type EJ Series) rated NEMA 3R or 4 (IP 66).

5.7 Mechanical

Enclosure: High impact, ABS/PC plastic

Flame Resistance Rating: UL 94V-0, IEC FV-0 Size: 153 mm × 85 mm × 38 mm (6.02 in × 3.35 in × 1.50 in)

Connectors: Euroblock pluggable terminal blocks

Green: up to 12 AWG (2.5 mm Black: up to 12 AWG (2.5 mm2), 300 V

), 600 V

5.8 FCC Information

This equip ment has been te sted and com plies with t he limits for a C lass B digital device, pursuant to part 15 of the FCC Rules. Operation is subject to the followin g t wo c ond iti ons: (1) This device may no t ca use ha rm ful i nterferen c e, and (2) this device mu st acc ept any inter fer ence r ecei ved, incl uding int er ference that may cause undesired operation.

The FCC limits are designed to provide reasonable protection against harmful interf eren ce i n a res ide ntia l inst all atio n. Th is equ ipm ent ge ner ates, u ses a nd can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no gua rant ee th at inte rferenc e w ill n ot oc c ur in a p articu lar 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 for help.

5.9 Warranty

All prod u cts sold by C o ntinental Control S y s te m s , L LC (CC S) are gu a r a n te ed against defe cts in mater ial and wor kmanship fo r a period of f ive years f rom the original date of shipment. CCS’s responsibility is limited to repair, replacement, or ref und, any of wh ich may b e sele cted by CC S at its s ole di scret ion. CCS reserves the right to substitute functionally equivalent new or serviceable used parts.

WattNod e Logger m odels inc lude a lith ium batte ry to pr eser ve the date and time during power failures. CCS will replace or provide a replacement battery at no charge if the battery fails within five years from the original date of shipment.

This warr ant y cover s only d efec ts ar isin g unde r nor mal us e and do es not i nclude malfunctions or fail ures resulting from: misuse, neglect, improper app lication, i mpr op er in st all ati on, wat er da mag e, ac ts of n atur e, lig htni ng, p ro duc t modifications, alterations or repairs by anyone other than CCS.

Excep t as s et f orth h er ei n , CCS m ak es n o wa r ra n ti e s, ex p re s se d or i m plied, and CCS disclaims and negates all other warranties, including without limitation, implied warranties of merchanta bility and fitness for a particular purpose.

5.10 Limitation of Liability

In no event shall CCS be liable for any indirect, special, incidental, punitive or co nseq uent ial d amag es of any k ind or n atur e ari sing ou t of the sale or use of its products whether such liability is asserted on the basis of cont rac t, t or t or o th er wi se, in clu ding w it hou t limi ta tio n, lo st pr of its , even if CCS has been advised of the possibility of such damages.

Customer acknowledges that CCS’s aggregate liability to Customer relating to or arisin g o ut of the sale or us e o f CCS’s products, w h e ther such liability is asserte d on the basis of co ntract, to rt or otherwise , shall no t exceed the purchase price paid by Customer for the products in respect of which damages are claimed. Customer specifically acknowledges that CCS’s price for the products is based upon the limitations of CCS’s liability set forth herein.

Continental Control Systems, LLC 3131 Indian Rd., Boulder, CO 80301, U.S.A. (303) 444-7422, http://www.ccontrolsys.com

• WattNode is a registered trademark of Continental Control Systems, LLC.

• BACnet is a registered trademark of American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)