Honeywell W7750A COOLSTAGE1, COOLSTAGE2, COOLSTAGE3, COOLSTAGE4, HEATSTAGE1, HEATSTAGE2, Fanout

Page 69

Table 20. Input/Output 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

 

 

 

 

 

 

 

 

 

 

 

 

 

nciIoSelect

DigitalOut[0]

COOL_STAGE_1

1

 

NETWORK DO(FREE1)

 

 

 

 

X

 

 

DigitalOut[0] specifies which logical digital output function is assigned to the

 

 

 

 

COOL_STAGE_2

2

 

(Value of State is 25)

 

 

 

 

 

 

 

digital physical output according to the enumerated list that is shown in the

 

 

 

 

COOL_STAGE_3

3

 

 

 

 

 

 

 

 

 

Engineering Units/States column. The W7750 Controllers are configured at

 

 

 

 

COOL_STAGE_4

4

 

 

 

 

 

 

 

 

 

the factory with the enumerated value in the Default column. Only

 

 

 

 

HEAT_STAGE_1

5

 

 

 

 

 

 

 

 

 

DigitalOut[0] through DigitalOut[5] are available in the W7750A model

 

 

 

 

HEAT_STAGE_2

6

 

 

 

 

 

 

 

 

 

which can configure staged outputs. The W7750A Controller can drive

 

 

 

 

HEAT_STAGE_3

7

 

 

 

 

 

 

 

 

 

Series 60 Floating Control to modulate cooling valves, heating valves and

 

 

 

 

HEAT_STAGE_4

8

 

 

 

 

 

 

 

 

 

economizers. (No PWM outputs are allowed in the W7750A model.) The

 

 

 

 

CHANGE_OVER_RELAY

9

 

 

 

 

 

 

 

 

 

controller is configured at the factory with the enumerated value in the

 

 

 

 

FAN_OUT

10

 

 

 

 

 

 

 

 

 

Default column. The eight outputs on the W7750B are all digital outputs.

 

 

 

 

AUX_ECON

11

 

 

 

 

 

 

 

 

 

The eight outputs on the W7750C consist of five digital and three analog

 

 

 

 

OCCUPANCY_STATUS

12

 

 

 

 

 

 

 

 

 

outputs.

 

 

 

 

ECON_OPEN

13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ECON_CLOSE

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COOL_OPEN

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COOL_CLOSE

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT_OPEN

17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT_CLOSE

18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT_COOL_STAGE_1

19

 

 

 

 

 

 

 

 

 

 

69

 

 

 

HEAT_COOL_STAGE_2

20

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT_COOL_STAGE_3

21

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT_COOL_STAGE_4

22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FREE1

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FREE2

26

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FREE1_PULSE_ON

27

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FREE1_PULSE_OFF

28

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ECON_PWM

29

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT_PWM

30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COOL_PWM

31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UNUSED

255

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nciIoSelect

DigitalOut[1]

See DigitalOut[0] enumerated

1-31

FAN_OUT

 

 

 

 

X

 

 

See DigitalOut[0] for enumerated names. The W7750 Controllers are

 

 

 

 

values

,255

(Value of State is 10)

 

 

 

 

 

 

 

configured at the factory with the enumerated value in the Default column.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nciIoSelect

DigitalOut[2]

See DigitalOut[0] enumerated

1-31

COOL_STAGE_2

 

 

 

 

X

 

 

See DigitalOut[0] for enumerated names. The W7750 Controllers are

 

 

 

 

values

,255

(Value of State is 2)

 

 

 

 

 

 

 

configured at the factory with the enumerated value in the Default column.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nciIoSelect

DigitalOut[3]

See DigitalOut[0] enumerated

1-31

HEAT_STAGE_1

 

 

 

 

X

 

 

See DigitalOut[0] for enumerated names. The W7750 Controllers are

 

 

 

 

values

,255

(Value of State is 1)

 

 

 

 

 

 

 

configured at the factory with the enumerated value in the Default column.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nciIoSelect

DigitalOut[4]

See DigitalOut[0] enumerated

1-31

HEAT_STAGE_2

 

 

 

 

X

 

 

See DigitalOut[0] for enumerated names. The W7750 Controllers are

 

 

 

 

values

,255

(Value of State is 3)

 

 

 

 

 

 

 

configured at the factory with the enumerated value in the Default column.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nciIoSelect

DigitalOut[5]

See DigitalOut[0] enumerated

1-31

HEAT_STAGE_1

 

 

 

 

X

 

 

See DigitalOut[0] for enumerated names. The W7750 Controllers are

 

 

 

 

values

,255

(Value of State is 5)

 

 

 

 

 

 

 

configured at the factory with the enumerated value in the Default column.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nciIoSelect

DigitalOut[6]

See DigitalOut[0] enumerated

1-31

UNUSED

 

 

 

 

X

 

 

See DigitalOut[0] for enumerated names. The W7750 Controllers are

 

 

 

 

values

,255

(Value of State is 255)

 

 

 

 

 

 

 

configured at the factory with the enumerated value in the Default column.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nciIoSelect

DigitalOut[7]

See DigitalOut[0] enumerated

1-31

UNUSED

 

 

 

 

X

 

 

See DigitalOut[0] for enumerated names. The W7750 Controllers are

74-

 

 

 

values

,255

(Value of State is 255)

 

 

 

 

 

 

 

configured at the factory with the enumerated value in the Default column.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nciIoSelect

HtPump

CONV

0

 

CONV

P

 

 

X

 

 

 

HtPump specifies the type of equipment being controlled. When HtPump is

2958

 

 

 

HP

1

 

 

 

 

 

 

 

 

 

0 (CONV), the node is controlling conventional gas or electric heat. When

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HtPump is 1 (HP), the node is controlling a heat pump.

— 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER

Image 69
Contents Excel General Considerations W7750 Controllers Appendices72-2958 74-2958 List of Figures74-2958 Setpoint ramping parameters with ramp rate calculationList of Tables Typical system overview Description of DevicesControl Provided Control ApplicationOrganization of Manual Products CoveredApplicable Literature Form No TitleAgency Listings Product NamesAbbreviations and Definitions Controllers ConstructionDI-1 W7750APerformance Specifications PowerSpecial Note for the W7750B,C Unit Specified Space Temperature Sensing Range CPUMemory Capacity Excel 10 W7750C Constant Volume AHU Controller Jack Lonmark Functional Profile DIN rail adaptersAnalog Inputs Inputs/OutputsDigital Inputs Triac Outputs on the W7750B,C Models onlyDigital Outputs Duct Sensor Wall ModulesT7770A1006 T7770CT7560A,B construction in in. mm General ConfigurationsConfiguration Options Summary For W7750A,B,C Controllers Staged HEATING/COOLING Control Allowable Heating and Cooling Equipment ConfigurationsHeat Pump Control Modulating HEATING/COOLING ControlPneumatic Actuator Control Economizer ControlWindow Open/Closed Digital Input Occupancy SensorWall Module Options MIXED-OUTPUT-TYPE ControlDirty Filter Monitor Modes of OperationIndoor Air Quality IAQ Override Smoke ControlDisabled OFF ModeNot AssignedPlan the System OverviewDetermine Other Bus Devices Required Step No DescriptionLonworks Bus Layout Lay Out Communications and Power WiringExcel VAV Cvahu Power Wiring Power Budget Calculation ExampleDeviceVA Information Obtained from ML6161A/B Damper Actuator, 35 lb-in R8242A Contactor VA Ratings For Transformer Sizing Device DescriptionML7984B PWM Valve Actuator Line LossNema class 2 transformer voltage output limits Power wiring details for one Excel 10 per TransformerGeneral Considerations Prepare Wiring DiagramsW7750 Controllers Terminal Terminal Number Description Factory Default Digital OutputsConstant Volume AHU Controller ML6161 Floating Actuator COM CCW Load Controller Power Heat Wall Economizer Damper PWM Actuator Power Signal W7750C Constant Pneumatic transducer to W7750B,C Shown, see triangle note Lonworks Bus Termination ModuleBrown Orange Order Equipment Lonworks Bus termination wiring optionsT7770 and T7560 Wall Modules Honeywell Logo T7770D1018Sensor with Bypass/LED and Lonworks Jack Accessories Sensors AccessoriesEchelon Based Components and Parts Troubleshooting Configure ControllersTroubleshooting Excel 10 Controllers and Wall Modules CablingAlarms Excel 10 AlarmsResistance Value ohms W7750 Controller Status LED Broadcasting the Service MessageSetting the Pid Parameters Appendix A. Using E-Vision to Commission a W7750 ControllerT7770C,D Wall Module Bypass Pushbutton and Override LED Sensor CalibrationAppendix B. Sequences of Operation Common Operations Heating Room Temperature Sensor RmTempEconomizer IAQ OptionRemote Setpoint RmtStptPot Bypass Mode StatusOvrd and StatusLedSetpoint Limits LoSetptLim and HiSetptLim BypassTimeOccupancy Mode and Manual Override Arbitration Continuous Unoccupied ModeNot Assigned Bypass OccupiedTime Clock OccTimeClock Recovery Ramping for Heat Pump SystemsSchedule Master SchedMaster Setpoint RampingSmoke Control Window Sensor StatusWndwFAN Operation Demand Limit Control DLCTemperature Control Operations See for a diagram of a typical W7750 UnitDirty Filter Monitor ONE Stage Staged Cooling ControlTWO Stages Three StagesSeries 60 Modulating Control Cascade Control of Modulating COOLING/HEATINGPulse Width Modulating PWM Control Outdoor AIR Lockout of HEATING/COOLINGIndoor AIR Quality IAQ Override Economizer ENABLE/DISABLE ControlFreeze Stat Discharge AIR LOW Limit ControlControl Parameters Address Input Output Points AddressEnergy Management Points Address Status Points AddressMappable User Addresses and Table Number Air Flow Relative TemperatureCO2 Concentration EnthalpyPlaced in manual mode through a menu Application reset therefore, these points canValid states and the corresponding Enumerated values are shownInput/Output Points DefaultNvName Field Name CommentsOccsensor Shcedmasterin NciIoSelect DigitalIn1255 NciIoSelect DigitalIn2 Occsensor UnuseddiCOOLSTAGE2 COOLSTAGE1COOLSTAGE3 COOLSTAGE4Siinvalid SixtyfiftyPPM Siinvalid FalseTrue Position when poor indoor air quality is detected EconEnSw NvoIO EconEnableInStatusDI3 NvoIO UbDigitalIn OccSensr NvoIONvName Default CommentsControl Parameters MaxClRamp NciAux1SetPt UbMaxClRampS0 Degrees F/Hr OdEnthalpyEnableMinClRamp NciAux1SetPt UbMinClRampS0 Degrees F/Hr MaxClRamp, OdTempMaxClRamp,PPM GainCoolProp NciAux2SetPt UbKpCoolS2 Degrees F Degrees C Discharge air temperature cascade control loopGain for the cooling control loop GainHeatProp NciAux2SetPt UbKpHeatS2 Degrees F Degrees CEnergy Management Points NviFree1 Value Refer to WSHPEnable.valueAuxiliary functions. nviFree1 controls the FREE1OUT Network variable input failsDestTimeClk NviTimeClk State NviTimeClk ValueRefer to nviTimeClk.value 255 SrcTimeClkCt NvoTimeClk ValueStatus Points Bit Offset = SensorFailAlrm Alarmbit1Bit Offset = FrostProtectAlrm Bit Offset = InvalidSetPtAlrmNodedisabled NoalarmSmokealarm UpdateallfieldsStartupwait DisabledmodeHeat CoolAir flow switch is configured StatusEconEn NvoData1 EconEnableNciAux1SetPts.ubOdEnthalpyEnableS2 StatusManOcc NvoData1 NetManOccAuxiliary heating stages are turned on HeatStgsOn NvoData1 HeatStagesOnCoolStgsOn NvoData1 CoolStagesOn For both heating or coolingNciConfig.SmokeControl Is 1, the algorithm controls as per the settings foundController mode is switched to Freezeprotect MonitorSw NvoData1 MonSwitchTempcontrolptfield BypasstimerfieldSpacetempfield DischargetempfieldUbinvalid SpaceTempError StatusError NvoError Errorbit0NvoError Errorbit0 Bit Offset = Temperature SetPtError NvoError Errorbit0Bit Offset = RtnEnthalpyError NvoError Errorbit1 NvoError Errorbit1Are disabled as if the sensor was not configured Bit Offset = SpaceCO2Error NvoError Errorbit1Bit Offset = NvDlcShedError NvoError Errorbit2 Bit Offset = NvWindowError NvoError Errorbit2Bit Offset = NvTodEventError NvoError Errorbit3 Bit Offset = NvByPassError NvoError Errorbit3Cfgexternal CfglocalCfgnul Calibration PointsConfiguration Parameters False True DisMinClTime NciConfig DisableCoolMinTime DisMinHtTime NciConfig DisableHeatMinTimeCascCntrl NciConfig CascadeControl UseRaTempCtl NciConfigOffset Absolutemiddle Last NETNone Normal BypassonlyLonmark /Open System Points Hvacheat HvacautoHvacmrngwrmup Hvacprecool Hvaccool Hvacnightpurge Hvacnul HvacoffDestRmTemp NviSpaceTemp Degrees F 74-2958 100SNVTtempp 14 to SrcRmTemp NvoSpaceTemp Degrees FHvacauto Hvacnul HvacmrngwrmupHvactest Alarmnotifydisabled 103 NvoStatus Inalarm NvoStatus Electricalfault255 Not configured 74-2958 NvoStatus UnabletomeasureSwon Corresponding economizer function is not enabled because On other nodes. If the economizer function is configured bySrcEconEnable NvoEcon State SrcEconEnCt NvoEcon ValueDirect Access And Special Points OFF Data Share Points =using One-to-Many and not using points Approximate Memory Size Estimating Procedure= including mapped points and others for Mapped points = number of mapped points per ExcelResistance Sensors Sensor Resistance Versus Temperature Resistance OhmsSensor Type Sensor UseDirect Setpoint Temperature Offset 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 113 74-2958 Sensor Current Versus Enthalpy volts Enthalpy mAT7242 or equivalent 74-2958 114MAmAmAmA AmA mA mA Sensor Voltage Versus Input Voltage To A/D Voltage to A/D Pressure Inw kPa Sensor Voltage Vdc Sensor Voltage Vdc Versus Pressure InwInw 50.0.13