Honeywell W7750A HeatStgsOn NvoData1 HeatStagesOn, Auxiliary heating stages are turned on

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Table 23. Status Points. (Continued)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Value

Digital

 

E-Vision

 

 

Direct

Hardware

Manual

 

E-Vision Legend: (M) Monitor, (P) Parameter, (S) Schematic

 

 

 

 

 

 

 

 

 

 

 

 

 

 

User Address

NvName

Field Name

(Metric) or States plus Range

ofState

Stateor

Default

(M, P,S)

Share

Map

Access

Config.

Config.

Test

Comments

 

 

 

Engineering Units: English

 

 

 

 

 

 

 

 

 

 

 

HeatStgsOn

nvoData1

HeatStagesOn

0 to 4

 

 

0

 

 

X

 

 

 

 

HeatStagesOn: HeatStagesOn indicates how many heating stages are on.

 

(nvoCtlDataG1)

 

 

 

 

 

 

 

 

 

 

 

 

If the node is controlling a heat pump, HeatStagesOn indicates how many

 

 

 

 

 

 

 

 

 

 

 

 

 

 

auxiliary heating stages are turned on.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CoolStgsOn

nvoData1

CoolStagesOn

0 to 4

 

 

0

 

 

X

 

 

 

 

CoolStagesOn: CoolStagesOn indicates how many compressor stages are

 

(nvoCtlDataG1)

 

 

 

 

 

 

 

 

 

 

 

 

on. If the node is controlling a heat pump, compressor stages are turned on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

for both heating or cooling.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Free1Stat

nvoData1

Free1Out

FALSE

0

 

FALSE

 

 

X

 

 

 

 

Free1Out: Free1Out indicates the state of FREE1_OUT digital output. 1

 

(nvoCtlDataG1)

 

TRUE

1

 

 

 

 

 

 

 

 

 

means on, and 0 means off.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Free2Stat

nvoData1

Free2Out

FALSE

0

 

FALSE

 

 

X

 

 

 

 

Free2Out: Free2Out indicates the state of FREE2_OUT digital output. 1

 

(nvoCtlDataG1)

 

TRUE

1

 

 

 

 

 

 

 

 

 

means on, and 0 means off.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OccStatOut

nvoData1

OccStatusOut

FALSE

0

 

FALSE

 

 

X

 

 

 

 

OccStatusOut: OccStatusOut indicates the state of the

 

(nvoCtlDataG1)

 

TRUE

1

 

 

 

 

 

 

 

 

 

OCCUPANCY_STATUS_OUT digital output. 1 means on (not

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OC_UNOCCUPIED), and 0 means off (OC_UNOCCUPIED).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SaFan

nvoData1

FanOn

FALSE

0

 

FALSE

 

 

X

 

 

 

 

FanOn: FanOn indicates the state of the FAN_OUT digital output. 1 means

 

(nvoCtlDataG1)

 

TRUE

1

 

 

 

 

 

 

 

 

 

on, and 0 means off.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

StatusEconOut

nvoData1

AuxEconOut

FALSE

0

 

FALSE

 

 

X

 

 

 

 

AuxEconOut: AuxEconOut indicates the state of the AUX_ECON_OUT

 

(nvoCtlDataG1)

 

TRUE

1

 

 

 

 

 

 

 

 

 

digital output. 1 means that the packaged economizer is enabled, and 0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

means the economizer is disabled. A packaged economizer is always

 

 

 

 

 

 

 

 

 

 

 

 

 

 

treated as the first stage of cooling when an economizer is configured by

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nciIoSelect.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nvoData1

EconFloatSynch

FALSE

0

 

FALSE

 

 

 

 

 

 

 

EconFloatSynch: EconFloatSynch indicates that the economizer damper

 

(nvoCtlDataG1)

 

TRUE

1

 

 

 

 

 

 

 

 

 

motor is being synchronized with the reported economizer position by

 

 

 

 

 

 

 

 

 

 

 

 

 

 

driving the damper for a period longer than it takes to fully close the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

damper. The reported economizer position is synchronized whenever an

 

 

 

 

 

 

 

 

 

 

 

 

 

 

endpoint is reached (full open or full close).and when the elapsed time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

since the last synchronization is 24 hours.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DlcShed

nvoData1

DlcShed

FALSE

0

 

FALSE

 

 

 

 

 

 

 

DlcShed: DlcShed indicates the state of nviDlcShed. When DlcShed is 1,

 

(nvoCtlDataG1)

 

TRUE

1

 

 

 

 

 

 

 

 

 

demand limit control set by an energy management node is active. If the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

effective occupancy is OC_OCCUPIED or OC_STANDBY when demand

 

 

 

 

 

 

 

 

 

 

 

 

 

 

limit control is active, then the setpoint is shifted by

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nciAux1SetPt.siDlcBumpTempS7 in the energy saving direction. When

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DlcShed is 0, demand limit control is inactive. If nviDlcShed fails to be

 

 

 

 

 

 

 

 

 

 

 

 

 

 

received periodically or nviDlcShed becomes 0, then the setpoint is ramped

 

 

 

 

 

 

 

 

 

 

 

 

 

 

back to the original setpoint over a 30 minute interval.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER

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Contents Excel 72-2958 General Considerations W7750 ControllersAppendices List of Figures 74-2958Setpoint ramping parameters with ramp rate calculation 74-2958List of Tables Description of Devices Typical system overviewControl Application Control ProvidedApplicable Literature Products CoveredOrganization of Manual Form No TitleProduct Names Agency ListingsAbbreviations and Definitions Construction ControllersW7750A DI-1Special Note for the W7750B,C Unit Performance SpecificationsPower Memory Capacity Specified Space Temperature Sensing RangeCPU Excel 10 W7750C Constant Volume AHU Controller Jack DIN rail adapters Lonmark Functional ProfileInputs/Outputs Analog InputsDigital Outputs Digital InputsTriac Outputs on the W7750B,C Models only T7770A1006 Wall ModulesDuct Sensor T7770CT7560A,B construction in in. mm Configurations GeneralConfiguration Options Summary For W7750A,B,C Controllers Heat Pump Control Allowable Heating and Cooling Equipment ConfigurationsStaged HEATING/COOLING Control Modulating HEATING/COOLING ControlEconomizer Control Pneumatic Actuator ControlWall Module Options Occupancy SensorWindow Open/Closed Digital Input MIXED-OUTPUT-TYPE ControlIndoor Air Quality IAQ Override Modes of OperationDirty Filter Monitor Smoke ControlNot OFF ModeDisabled AssignedDetermine Other Bus Devices Required OverviewPlan the System Step No DescriptionLay Out Communications and Power Wiring Lonworks Bus LayoutExcel VAV Cvahu DeviceVA Information Obtained from Power WiringPower Budget Calculation Example ML7984B PWM Valve Actuator VA Ratings For Transformer Sizing Device DescriptionML6161A/B Damper Actuator, 35 lb-in R8242A Contactor Line LossPower wiring details for one Excel 10 per Transformer Nema class 2 transformer voltage output limitsPrepare Wiring Diagrams General ConsiderationsW7750 Controllers Factory Default Digital Outputs Terminal Terminal Number DescriptionConstant Volume AHU Controller ML6161 Floating Actuator COM CCW Load Controller Power Heat Wall Economizer Damper PWM Actuator Power Signal W7750C Constant Lonworks Bus Termination Module Pneumatic transducer to W7750B,C Shown, see triangle noteBrown Orange Lonworks Bus termination wiring options Order EquipmentSensor with Bypass/LED and Lonworks Jack T7770 and T7560 Wall ModulesHoneywell Logo T7770D1018 Echelon Based Components and Parts Accessories SensorsAccessories Troubleshooting Excel 10 Controllers and Wall Modules Configure ControllersTroubleshooting CablingResistance Value ohms AlarmsExcel 10 Alarms Broadcasting the Service Message W7750 Controller Status LEDT7770C,D Wall Module Bypass Pushbutton and Override LED Appendix A. Using E-Vision to Commission a W7750 ControllerSetting the Pid Parameters Sensor CalibrationAppendix B. Sequences of Operation Common Operations Economizer Room Temperature Sensor RmTempHeating IAQ OptionSetpoint Limits LoSetptLim and HiSetptLim Bypass Mode StatusOvrd and StatusLedRemote Setpoint RmtStptPot BypassTimeNot Assigned Continuous Unoccupied ModeOccupancy Mode and Manual Override Arbitration Bypass OccupiedSchedule Master SchedMaster Recovery Ramping for Heat Pump SystemsTime Clock OccTimeClock Setpoint RampingFAN Operation Window Sensor StatusWndwSmoke Control Demand Limit Control DLCDirty Filter Monitor Temperature Control OperationsSee for a diagram of a typical W7750 Unit TWO Stages Staged Cooling ControlONE Stage Three StagesPulse Width Modulating PWM Control Cascade Control of Modulating COOLING/HEATINGSeries 60 Modulating Control Outdoor AIR Lockout of HEATING/COOLINGFreeze Stat Economizer ENABLE/DISABLE ControlIndoor AIR Quality IAQ Override Discharge AIR LOW Limit ControlEnergy Management Points Address Input Output Points AddressControl Parameters Address Status Points AddressMappable User Addresses and Table Number CO2 Concentration Relative TemperatureAir Flow EnthalpyValid states and the corresponding Application reset therefore, these points canPlaced in manual mode through a menu Enumerated values are shownNvName Field Name DefaultInput/Output Points Comments255 NciIoSelect DigitalIn2 NciIoSelect DigitalIn1Occsensor Shcedmasterin Occsensor UnuseddiCOOLSTAGE3 COOLSTAGE1COOLSTAGE2 COOLSTAGE4Sixtyfifty SiinvalidTrue PPM SiinvalidFalse StatusDI3 NvoIO UbDigitalIn EconEnSw NvoIO EconEnableInPosition when poor indoor air quality is detected OccSensr NvoIODefault Comments NvNameControl Parameters MinClRamp NciAux1SetPt UbMinClRampS0 Degrees F/Hr OdEnthalpyEnableMaxClRamp NciAux1SetPt UbMaxClRampS0 Degrees F/Hr MaxClRamp, OdTempMaxClRamp,PPM Gain for the cooling control loop Discharge air temperature cascade control loopGainCoolProp NciAux2SetPt UbKpCoolS2 Degrees F Degrees C GainHeatProp NciAux2SetPt UbKpHeatS2 Degrees F Degrees CEnergy Management Points Auxiliary functions. nviFree1 controls the FREE1OUT Refer to WSHPEnable.valueNviFree1 Value Network variable input failsRefer to nviTimeClk.value NviTimeClk ValueDestTimeClk NviTimeClk State 255 SrcTimeClkCt NvoTimeClk ValueStatus Points Bit Offset = FrostProtectAlrm Alarmbit1Bit Offset = SensorFailAlrm Bit Offset = InvalidSetPtAlrmSmokealarm NoalarmNodedisabled UpdateallfieldsHeat DisabledmodeStartupwait CoolNciAux1SetPts.ubOdEnthalpyEnableS2 StatusEconEn NvoData1 EconEnableAir flow switch is configured StatusManOcc NvoData1 NetManOccCoolStgsOn NvoData1 CoolStagesOn HeatStgsOn NvoData1 HeatStagesOnAuxiliary heating stages are turned on For both heating or coolingController mode is switched to Freezeprotect Is 1, the algorithm controls as per the settings foundNciConfig.SmokeControl MonitorSw NvoData1 MonSwitchSpacetempfield BypasstimerfieldTempcontrolptfield DischargetempfieldUbinvalid NvoError Errorbit0 StatusError NvoError Errorbit0SpaceTempError Bit Offset = Temperature SetPtError NvoError Errorbit0Are disabled as if the sensor was not configured NvoError Errorbit1Bit Offset = RtnEnthalpyError NvoError Errorbit1 Bit Offset = SpaceCO2Error NvoError Errorbit1Bit Offset = NvTodEventError NvoError Errorbit3 Bit Offset = NvWindowError NvoError Errorbit2Bit Offset = NvDlcShedError NvoError Errorbit2 Bit Offset = NvByPassError NvoError Errorbit3Cfgnul CfglocalCfgexternal Calibration PointsConfiguration Parameters False True CascCntrl NciConfig CascadeControl DisMinHtTime NciConfig DisableHeatMinTimeDisMinClTime NciConfig DisableCoolMinTime UseRaTempCtl NciConfigNone Normal Last NETOffset Absolutemiddle BypassonlyLonmark /Open System Points Hvacmrngwrmup Hvacprecool Hvaccool Hvacnightpurge Hvacnul HvacautoHvacheat HvacoffSNVTtempp 14 to 74-2958 100DestRmTemp NviSpaceTemp Degrees F SrcRmTemp NvoSpaceTemp Degrees FHvactest Hvacauto HvacnulHvacmrngwrmup Alarmnotifydisabled 255 Not configured 74-2958 NvoStatus Electricalfault103 NvoStatus Inalarm NvoStatus UnabletomeasureSwon SrcEconEnable NvoEcon State On other nodes. If the economizer function is configured byCorresponding economizer function is not enabled because SrcEconEnCt NvoEcon ValueDirect Access And Special Points OFF Data Share Points = including mapped points and others for Approximate Memory Size Estimating Procedure=using One-to-Many and not using points Mapped points = number of mapped points per ExcelSensor Type Sensor Resistance Versus Temperature Resistance OhmsResistance Sensors Sensor UseT7770B,C 10K ohm setpoint potentiometer Relative Offset Setpoint TemperatureDirect Setpoint Temperature Above and Below Setpoint Resistance OhmsSensor Voltage Versus Humidity Relative Humidity Percentage Voltage/Current SensorsSensor Voltage Versus Humidity Humidity Percentage Sensor Current Versus Enthalpy volts Enthalpy mA 113 74-2958MAmAmAmA AmA mA mA T7242 or equivalent74-2958 114 Sensor Voltage Versus Input Voltage To A/D Voltage to A/D Inw Sensor Voltage Vdc Versus Pressure InwPressure Inw kPa Sensor Voltage Vdc 50.0.13