Honeywell W7750A Startupwait, Heat, Cool, Offmode, Disabledmode, Emergheat, Smokeemergency, Stlow

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84

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

 

 

 

 

 

 

 

 

 

 

 

StatusMode

nvoData1

Mode

START_UP_WAIT

0

 

START_UP_WAIT

 

 

X

 

 

 

 

Mode: The result of the controller determining which mode of operation it

 

(nvoCtlDataG1)

 

HEAT

1

 

 

 

 

 

 

 

 

 

currently is in. At each power-up, the controller remains in the Start-Up and

 

 

 

COOL

2

 

 

 

 

 

 

 

 

 

Wait mode (a random time from 0 to 20 minutes that is based on the units

 

 

 

OFF_MODE

3

 

 

 

 

 

 

 

 

 

network number). After that period, the mode changes to initialize actuators

 

 

 

DISABLED_MODE

4

 

 

 

 

 

 

 

 

 

that will fully close the damper and valve actuators to insure full travel when

 

 

 

EMERG_HEAT

5

 

 

 

 

 

 

 

 

 

under program control. The various other modes are due to normal

 

 

 

SMOKE_EMERGENCY

6

 

 

 

 

 

 

 

 

 

operation as well as manual and network commands.

 

 

 

FREEZE_PROTECT

7

 

 

 

 

 

 

 

 

 

 

 

 

 

MANUAL

8

 

 

 

 

 

 

 

 

 

 

 

 

 

FACTORY_TEST

9

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN_ONLY

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

StatusOcc

nvoData1

EffectOcc

OC_OCCUPIED

0

 

OC_NUL

 

 

X

 

 

 

 

EffectOcc: Result of controller supervising the various Occupied controlling

 

(nvoCtlDataG1)

 

OC_UNOCCUPIED

1

 

 

 

 

 

 

 

 

 

inputs and deciding which one to use. See StatusinOcy, DestSchedOcc,

 

 

 

OC_BYPASS

2

 

 

 

 

 

 

 

 

 

ManualOcc and StatusOvrd.

 

 

 

OC_STANDBY

3

 

 

 

 

 

 

 

 

 

 

 

 

 

OC_NUL

255

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

StatusOvrd

nvoData1

Override

OC_OCCUPIE

0

 

OC_NUL

 

 

X

 

 

 

 

Override: Is the effective manual override state arbitrated from NetManOcc,

 

(nvoCtlDataG1)

 

DOC_UNOCCUPIED

1

 

 

 

 

 

 

 

 

 

the wall module override button and the Bypass Timer.

 

 

 

OC_BYPASS

2

 

 

 

 

 

 

 

 

 

 

 

 

 

OC_STANDBY

3

 

 

 

 

 

 

 

 

 

 

 

 

 

OC_NUL

255

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

StatusSched

nvoData1

SchedOcc

OC_OCCUPIED

0

 

OC_NUL

 

 

X

 

 

 

 

DestSchedOcc: DestSchedOcc is calculated from OccTimeClock and

 

(nvoCtlDataG1)

 

OC_UNOCCUPIED

1

 

 

 

 

 

 

 

 

 

nviTodEvent.CurrentState using the following logic: If

 

 

 

OC_BYPASS

2

 

 

 

 

 

 

 

 

 

nviTodEvent.CurrentState is OC_OCCUPIED and OccTimeClock is

 

 

 

OC_STANDBY

3

 

 

 

 

 

 

 

 

 

ST_NUL, then DestSchedOcc is OC_OCCUPIED. If

 

 

 

OC_NUL

255

 

 

 

 

 

 

 

 

nviTodEvent.CurrentState is OC_UNOCCUPIED and OccTimeClock is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ST_NUL, then DestSchedOcc is OC_UNOCCUPIED. If

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nviTodEvent.CurrentState is OC_STANDBY and OccTimeClock is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ST_NUL, then DestSchedOcc is OC_STANDBY. If

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nviTodEvent.CurrentState is don’t care and OccTimeClock is ST_ON, then

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DestSchedOcc is OC_OCCUPIED. If nviTodEvent.CurrentState is don’t

 

 

 

 

 

 

 

 

 

 

 

 

 

 

care and OccTimeClock is ST_OFF, then DestSchedOcc is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OC_UNOCCUPIED. OC_OCCUPIED means the space is scheduled to be

 

 

 

 

 

 

 

 

 

 

 

 

 

 

occupied. OC_UNOCCUPIED means the space is scheduled to be

 

 

 

 

 

 

 

 

 

 

 

 

 

 

unoccupied. OC_STANDBY means the space is scheduled to be in a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

standby state somewhere between OC_OCCUPIED and

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OC_UNOCCUPIED.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TimeClckOcc

nvoData1

OccTimeClock

ST_OFF

0

 

ST_NUL

 

 

X

 

 

 

 

OccTimeClock: OccTimeClock shows the state of the physical time clock

 

(nvoCtlDataG1)

 

ST_LOW

1

 

 

 

 

 

 

 

 

 

input via nvoIO.OccTimeClock ORed with nviTimeClk. Valid enumerated

 

 

 

ST_MED

2

 

 

 

 

 

 

 

 

 

values are: ST_OFF means OC_UNOCCUPIED when either the time clock

 

 

 

ST_HIGH

3

 

 

 

 

 

 

 

 

 

input is configured and nvoIO.OccTimeClock is 0 and nviTimeClk is not

 

 

 

ST_ON

4

 

 

 

 

 

 

 

 

 

SW_ON or nviTimeClk.state is SW_OFF and nvoIO.OccTImeClock is not 1.

 

 

 

ST_NUL

255

 

 

 

 

 

 

 

 

ST_ON means OC_OCCUPIED when either the time clock input is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

configured and nvoIO.OccTimeClock is 1 or nviTimeClk.state is SW_ON.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ST_NUL means that the local time clock input is not configured by

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nciIoSelect and nviTimeClk.state is SW_NUL. There is no time clock

 

 

 

 

 

 

 

 

 

 

 

 

 

 

configured or bound to the node.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER

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Contents Excel General Considerations W7750 Controllers Appendices72-2958 List of Figures 74-2958Setpoint ramping parameters with ramp rate calculation 74-2958List of Tables Description of Devices Typical system overviewControl Application Control ProvidedProducts Covered Organization of ManualApplicable Literature Form No TitleProduct Names Agency ListingsAbbreviations and Definitions Construction ControllersW7750A DI-1Performance Specifications PowerSpecial Note for the W7750B,C Unit Specified Space Temperature Sensing Range CPUMemory Capacity Excel 10 W7750C Constant Volume AHU Controller Jack DIN rail adapters Lonmark Functional ProfileInputs/Outputs Analog InputsDigital Inputs Triac Outputs on the W7750B,C Models onlyDigital Outputs Wall Modules Duct SensorT7770A1006 T7770CT7560A,B construction in in. mm Configurations GeneralConfiguration Options Summary For W7750A,B,C Controllers Allowable Heating and Cooling Equipment Configurations Staged HEATING/COOLING ControlHeat Pump Control Modulating HEATING/COOLING ControlEconomizer Control Pneumatic Actuator ControlOccupancy Sensor Window Open/Closed Digital InputWall Module Options MIXED-OUTPUT-TYPE ControlModes of Operation Dirty Filter MonitorIndoor Air Quality IAQ Override Smoke ControlOFF Mode DisabledNot AssignedOverview Plan the SystemDetermine Other Bus Devices Required Step No DescriptionLay Out Communications and Power Wiring Lonworks Bus LayoutExcel VAV Cvahu Power Wiring Power Budget Calculation ExampleDeviceVA Information Obtained from VA Ratings For Transformer Sizing Device Description ML6161A/B Damper Actuator, 35 lb-in R8242A ContactorML7984B PWM Valve Actuator 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 EquipmentT7770 and T7560 Wall Modules Honeywell Logo T7770D1018Sensor with Bypass/LED and Lonworks Jack Accessories Sensors AccessoriesEchelon Based Components and Parts Configure Controllers TroubleshootingTroubleshooting Excel 10 Controllers and Wall Modules CablingAlarms Excel 10 AlarmsResistance Value ohms Broadcasting the Service Message W7750 Controller Status LEDAppendix A. Using E-Vision to Commission a W7750 Controller Setting the Pid ParametersT7770C,D Wall Module Bypass Pushbutton and Override LED Sensor CalibrationAppendix B. Sequences of Operation Common Operations Room Temperature Sensor RmTemp HeatingEconomizer IAQ OptionBypass Mode StatusOvrd and StatusLed Remote Setpoint RmtStptPotSetpoint Limits LoSetptLim and HiSetptLim BypassTimeContinuous Unoccupied Mode Occupancy Mode and Manual Override ArbitrationNot Assigned Bypass OccupiedRecovery Ramping for Heat Pump Systems Time Clock OccTimeClockSchedule Master SchedMaster Setpoint RampingWindow Sensor StatusWndw Smoke ControlFAN Operation Demand Limit Control DLCTemperature Control Operations See for a diagram of a typical W7750 UnitDirty Filter Monitor Staged Cooling Control ONE StageTWO Stages Three StagesCascade Control of Modulating COOLING/HEATING Series 60 Modulating ControlPulse Width Modulating PWM Control Outdoor AIR Lockout of HEATING/COOLINGEconomizer ENABLE/DISABLE Control Indoor AIR Quality IAQ OverrideFreeze Stat Discharge AIR LOW Limit ControlInput Output Points Address Control Parameters AddressEnergy Management Points Address Status Points AddressMappable User Addresses and Table Number Relative Temperature Air FlowCO2 Concentration EnthalpyApplication reset therefore, these points can Placed in manual mode through a menuValid states and the corresponding Enumerated values are shownDefault Input/Output PointsNvName Field Name CommentsNciIoSelect DigitalIn1 Occsensor Shcedmasterin255 NciIoSelect DigitalIn2 Occsensor UnuseddiCOOLSTAGE1 COOLSTAGE2COOLSTAGE3 COOLSTAGE4Sixtyfifty SiinvalidPPM Siinvalid FalseTrue EconEnSw NvoIO EconEnableIn Position when poor indoor air quality is detectedStatusDI3 NvoIO UbDigitalIn OccSensr NvoIODefault Comments NvNameControl Parameters OdEnthalpyEnable MaxClRamp NciAux1SetPt UbMaxClRampS0 Degrees F/HrMinClRamp NciAux1SetPt UbMinClRampS0 Degrees F/Hr MaxClRamp, OdTempMaxClRamp,PPM Discharge air temperature cascade control loop GainCoolProp NciAux2SetPt UbKpCoolS2 Degrees F Degrees CGain for the cooling control loop GainHeatProp NciAux2SetPt UbKpHeatS2 Degrees F Degrees CEnergy Management Points Refer to WSHPEnable.value NviFree1 ValueAuxiliary functions. nviFree1 controls the FREE1OUT Network variable input failsNviTimeClk Value DestTimeClk NviTimeClk StateRefer to nviTimeClk.value 255 SrcTimeClkCt NvoTimeClk ValueStatus Points Alarmbit1 Bit Offset = SensorFailAlrmBit Offset = FrostProtectAlrm Bit Offset = InvalidSetPtAlrmNoalarm NodedisabledSmokealarm UpdateallfieldsDisabledmode StartupwaitHeat CoolStatusEconEn NvoData1 EconEnable Air flow switch is configuredNciAux1SetPts.ubOdEnthalpyEnableS2 StatusManOcc NvoData1 NetManOccHeatStgsOn NvoData1 HeatStagesOn Auxiliary heating stages are turned onCoolStgsOn NvoData1 CoolStagesOn For both heating or coolingIs 1, the algorithm controls as per the settings found NciConfig.SmokeControlController mode is switched to Freezeprotect MonitorSw NvoData1 MonSwitchBypasstimerfield TempcontrolptfieldSpacetempfield DischargetempfieldUbinvalid StatusError NvoError Errorbit0 SpaceTempErrorNvoError Errorbit0 Bit Offset = Temperature SetPtError NvoError Errorbit0NvoError Errorbit1 Bit Offset = RtnEnthalpyError NvoError Errorbit1Are disabled as if the sensor was not configured Bit Offset = SpaceCO2Error NvoError Errorbit1Bit Offset = NvWindowError NvoError Errorbit2 Bit Offset = NvDlcShedError NvoError Errorbit2Bit Offset = NvTodEventError NvoError Errorbit3 Bit Offset = NvByPassError NvoError Errorbit3Cfglocal CfgexternalCfgnul Calibration PointsConfiguration Parameters False True DisMinHtTime NciConfig DisableHeatMinTime DisMinClTime NciConfig DisableCoolMinTimeCascCntrl NciConfig CascadeControl UseRaTempCtl NciConfigLast NET Offset AbsolutemiddleNone Normal BypassonlyLonmark /Open System Points Hvacauto HvacheatHvacmrngwrmup Hvacprecool Hvaccool Hvacnightpurge Hvacnul Hvacoff74-2958 100 DestRmTemp NviSpaceTemp Degrees FSNVTtempp 14 to SrcRmTemp NvoSpaceTemp Degrees FHvacauto Hvacnul HvacmrngwrmupHvactest Alarmnotifydisabled NvoStatus Electricalfault 103 NvoStatus Inalarm255 Not configured 74-2958 NvoStatus UnabletomeasureSwon On other nodes. If the economizer function is configured by Corresponding economizer function is not enabled becauseSrcEconEnable NvoEcon State SrcEconEnCt NvoEcon ValueDirect Access And Special Points OFF Data Share Points Approximate Memory Size Estimating Procedure =using One-to-Many and not using points= including mapped points and others for Mapped points = number of mapped points per ExcelSensor Resistance Versus Temperature Resistance Ohms Resistance SensorsSensor Type Sensor UseOffset Setpoint Temperature Direct Setpoint TemperatureT7770B,C 10K ohm setpoint potentiometer Relative Above and Below Setpoint Resistance OhmsVoltage/Current Sensors Sensor Voltage Versus Humidity Humidity PercentageSensor Voltage Versus Humidity Relative Humidity Percentage Sensor Current Versus Enthalpy volts Enthalpy mA 113 74-2958T7242 or equivalent 74-2958 114MAmAmAmA AmA mA mA Sensor Voltage Versus Input Voltage To A/D Voltage to A/D Sensor Voltage Vdc Versus Pressure Inw Pressure Inw kPa Sensor Voltage VdcInw 50.0.13