CCS WattNode WNA-1P-240-FT10 Скачать руководство пользователя страница 39 | Manualshive

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Index

39

output 17
summary 18

Neuron ID 16
Node object 17, 19
nvi 17
nviRequest 19, 23, 29
nviTimeSet 21, 29, 36
nvo 17
nvoAlarm 21, 26, 30
nvoDemand_f 29
nvoDemandKW 29
nvoDemandW 29
nvoElecKWH 23
nvoElecWH_f 23
nvoEngyClrT 19, 22, 23
nvoLoadControl 30
nvoPkDemand_f 29
nvoPkDemandKW 29
nvoPkDemandW 29
nvoPkDemResetT 19
nvoPower_f 24
nvoPowerKW 24
nvoPowerW 24
nvoStatus 19, 20

objects 17
override 20, 29

peak demand

See

demand measurement, peak

demand

power alarm

See

alarms, power

power line network

See

network, power line

power measurement 24

disable 20
enable 26
object 17, 24, 26
status 20
update rate 24, 25, 36

power outage 17, 22, 29

rolling demand

See

demand measurement,

rolling

self documentation 17
service button 16, 31, 32
service LED 16, 31, 32
single-phase three-wire 9
single-phase two-wire 8
sliding window demand

See

demand

measurement, rolling

SNVT 17
specifications 5, 35
standard network variable type

See

SNVT

status 20
subintervals

See

demand measurement,

subintervals

three-phase four-wire 11, 12
three-phase three-wire 10
time of day 21, 29, 36
TPT-78 15, 36
twisted pair

See

network, twisted pair

unconfigured 16, 31

variables

See

network variables

voltage connections 14

WattNode

accuracy 5, 23
crystal 21
humidity range 36
input range 36
models 5, 35
power consumption 14, 36
reinitialization 16
temperature range 36
voltage range 36
wiring diagrams 8–12

wink command 16
wye 11

XIF

See

external interface file

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Содержание WattNode WNA-1P-240-FT10

Страница 1: ...WATTNODE for LONWORKS User s Guide Continental Control Systems http www ccontrolsys com Rev 1 22...

Страница 2: ...ial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio com...

Страница 3: ...als 14 2 6 Network Wiring 14 2 7 Installation Summary 15 3 NETWORK CONFIGURATION 16 3 1 Identifying the WattNode 16 3 2 WattNode Reinitialization 16 3 3 Network Variables 17 3 3 1 Authentication 17 3...

Страница 4: ...34 5 2 2 Test CT Ordering 34 5 2 3 Test CT Output 34 6 SPECIFICATIONS 35 6 1 Models 35 6 2 Current Transformers 35 6 3 Accuracy 36 6 4 Timekeeping 36 6 5 Update Rate 36 6 6 Ratings 36 6 6 1 Electrica...

Страница 5: ...se Phases Wires Neutral Present WNA 1P 240 xxx 120 240 1 2 or 3 Yes WNA 3Y 208 xxx 120 208 240 3 4 Yes WNA 3Y 400 xxx 240 400 3 4 Yes WNA 3Y 480 xxx 277 480 3 4 Yes WNA 3Y 600 xxx 347 600 3 4 Yes WNA...

Страница 6: ...etwork 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 ou...

Страница 7: ...nnect the CTs to the WattNode before connecting the line voltages to the WattNode Note in some installations the CT screw terminals will be at line voltage 8 Do not place more than one voltage wire in...

Страница 8: ...inputs must be shorted with an insulated jumper wire Single phase two wire circuits can be measured with models WNA 1P 240 or WNA 3Y 208 Phase A LINE Neutral LOAD Current Transformer WHITE BLACK Sourc...

Страница 9: ...ts in 120 VAC between either line wire and neutral or 240 VAC between the two line wires Single phase three wire circuits can be measured with models WNA 1P 240 or WNA 3Y 208 Note Neutral must be conn...

Страница 10: ...ase three wire delta circuits should be measured with the WNA 3D 208 208 VAC phase to phase or the WNA 3D 480 480 VAC phase to phase Source Faces Phase A LINE Phase B Phase C LOAD Current Transformers...

Страница 11: ...phases It is important however that the neutral line be correctly connected Three phase four wire wye circuits should be measured with the WNA 3Y 208 208 VAC phase to phase and 120 VAC phase to neutra...

Страница 12: ...C Wild Phase 240 VAC 240 VAC Neutral FT10 WNA 4WD 240 FT10 Continental Control Systems WATTNODE C CT B CT A CT Service C 208 VAC B 120 VAC A 120 VAC Figure 2 6 Three Phase Four Wire Delta Connection 2...

Страница 13: ...ors eliminate any shock hazard There are two steps to connecting the current transformers mounting each CT around the wire to be measured and connecting the CTs to the WattNode The WattNode does not m...

Страница 14: ...ided by n where n is the number of times that the wire passes through the CT 2 5 Connecting Voltage Terminals Disconnect power by shutting off circuit breaker s or removing fuse s before connecting th...

Страница 15: ...d have one wire for each direction on the network If this is done then take extra care with the two wires in each terminal slot so that they are both securely tightened Any loose wires could disable a...

Страница 16: ...eed to be identified for the network The network management software must be able to find unconfigured nodes on the network When an unconfigured node is found the network management software will be i...

Страница 17: ...Energy Measurement Object 1 Power Measurement Object 2 and Demand Measurement Object 3 Each object has several associated network variables NVs Each NV has a self documentation string with a LonMark...

Страница 18: ...dy hr mn sec ms nciWMinDelta SNVT_power_f 1 0e38 W Amount by which power must change to force an output transmission nciPowLimHi SNVT_power_f 1 0e38 W Power alarm high limit nciPowLimLo SNVT_power_f 0...

Страница 19: ...ns the number of the object to which the request is directed and the request type In response to each request the object s status is returned in nvoStatus The status variable nvoStatus also indicates...

Страница 20: ...power object will be set to 1 Each field of nvoStatus used by the demand object will be set to 1 OVERRIDE 6 Invalid request Energy totals are set to zero and the in_override field is set in nvoStatus...

Страница 21: ...tNode has both power and demand alarms The power alarm can be configured for an over power alarm and an under power alarm The demand alarm can be configured for two levels of over power alarms Wheneve...

Страница 22: ...y total will always increase as long as the WattNode is online The energy total is reset to zero by an override request or when either nciGain or nciCTAmps is changed For most metering applications th...

Страница 23: ...sembly and should never need adjustment If the WattNode is being used for billing or sub metering see 3 3 1 Authentication on information to prevent unauthorized changes to the configuration The full...

Страница 24: ...hree different units Network Variable Resolution Range nvoPowerW 0 1 watt 0 to 6553 5 watts nvoPowerKW 0 1 kilowatt 0 to 6553 5 kilowatts nvoPower_f 1 2e 7 measurement 0 to 1 0e38 watts Table 4 4 Powe...

Страница 25: ...configured in units of floating point watts over the range 0 to 1 0e38 W The list of alarm configuration variables follows nciPowLimHi The power value above which the high power alarm is set This may...

Страница 26: ...larm if the power falls below 10 kW to indicate that the pump may no longer be performing its cooling duty We set nciPowLimHi to detect the 25 kW 25 000 W level alarm Suppose we don t want the alarm t...

Страница 27: ...im1 SNVT_power_f nciDemHiLim2 SNVT_power_f nc9 nc10 Manufacturer Specific Variables Figure 4 5 Demand Measurement Object Demand is defined as the average power over a specified time interval Typical d...

Страница 28: ...ree Subintervals 4 4 1 Demand Configuration The demand is configured with nciDemPeriod to set the interval over which demand is measured and nciDemSubints to set the number of demand subintervals nciD...

Страница 29: ...onize to the correct time of day allowing multiple WattNodes to stay synchronized even through power failures The WattNode will lose synchronization if nviTimeSet and its internal time differ by the l...

Страница 30: ...there are no timers to delay the alarms and no support for hysteresis in the demand alarms Whenever a demand measurement is made the new value is compared to each of the two alarm levels and if either...

Страница 31: ...erly but has not yet been configured installed by network management software Configured The WattNode is operating properly and has been configured by network management software Internal Error The Wa...

Страница 32: ...screw terminals has not been jumpered with an insulated shorting wire On any unused CT screw terminals connect the white and the black terminals indicated by dots on the label together with a short i...

Страница 33: ...me current rating Ensure that matching CTs are used for all phases The voltage and CT wires may be wired out of phase The best approach is to visually verify that everything is wired correctly but if...

Страница 34: ...the power level of the load being measured is changing significantly then this test may not yield correct results 5 2 3 Test CT Output 1 Since some CTs may produce little or no output below 5 of rated...

Страница 35: ...e of the CT not the rated current Exceeding the maximum allowable current may damage CTs The accuracy of the toroidal CTs is rated as 1 from 10 to 130 of rated current The following toroidal solid cor...

Страница 36: ...of day 6 5 Update Rate The WattNode measures power every 1 678 seconds and energy every 10 066 seconds The demand is measured at the end of each demand interval or subinterval measured to the nearest...

Страница 37: ...uidelines Version 3 0 Echelon Corporation 1996 LONWORKS Custom Node Development LONWORKS Engineering Bulletin Echelon Corporation January 1995 LONWORKS Technology Device Data Q2 95 DL159 D Motorola In...

Страница 38: ...9 status 20 subintervals 28 synchronization 21 29 update rate 36 enabling objects 16 energy measurement 22 configuration 23 disable 20 object 17 22 override 23 status 20 zeroing 16 19 22 23 ESD 14 ext...

Страница 39: ...power outage 17 22 29 rolling demand See demand measurement rolling self documentation 17 service button 16 31 32 service LED 16 31 32 single phase three wire 9 single phase two wire 8 sliding window...

Страница 40: ......

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