Honeywell W7750A specifications False True

Page 95

Table 25. Configuration Parameters. (Continued)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Value

Digital

 

E-Vision

 

 

Direct

Hardware

Manual

 

NOTE: Physical I/O points that are configurable are in Table 20.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

EconMtrSpd

nciConfig

ubEconMtrTimeS0

Seconds

 

 

90

P

 

X

X

 

 

 

EconMtrTime specifies how long it takes the economizer damper motor to

 

 

 

 

20 to 240

 

 

 

 

 

 

 

 

 

 

travel from fully closed to fully open. This time is used to calculate the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

reported position of the damper and to determine the length of over drive

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

time required to assure the damper is fully closed or open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CoolMtrSpd

nciConfig

ubCoolMtrTimeS0

Seconds

 

 

90

P

 

X

X

 

 

 

CoolMtrTime specifies how long it takes the cooling damper or valve motor

 

 

 

 

20 to 240

 

 

 

 

 

 

 

 

 

 

to travel from fully closed to fully open. This time is used to calculate the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

reported position of the cooling damper or valve and to determine the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

length of over drive time required to assure that it is fully closed or open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HeatMtrSpd

nciConfig

ubHeatMtrTimeS0

Seconds

 

 

90

P

 

X

X

 

 

 

HeatMtrTime specifies how long it takes the heating damper or valve motor

 

 

 

 

20 to 240

 

 

 

 

 

 

 

 

 

 

to travel from fully closed to fully open. This time is used to calculate the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

reported position of the heating damper or valve and to determine the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

length of over drive time required to assure that it is fully closed or open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FanFailTime

nciConfig

ubFanFailTimeS0

Seconds

 

 

10

P

 

X

X

 

 

 

Each time FAN_OUT is energized, then the node waits for FanFailTime

 

 

 

 

1 to 255

 

 

 

 

 

 

 

 

 

 

seconds to sample the ProofAirFlow input. If ProofAirFlow shows that the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

fan is not running for FanFailTime consecutive seconds, then the control is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

shut down for the minimum off time. Then the control (including the fan) is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

restarted and ProofAirFlow is again tested. If ProofAirFlow shows air flow,

95

 

 

 

 

 

 

 

 

 

 

 

 

 

 

then the control continues to operate, but if ProofAirFlow fails to show air

 

 

 

 

 

 

 

 

 

 

 

 

 

 

flow, then the control is again shut down for the minimum off time. After

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

three unsuccessful restarts, a LOSS_OF_AIR_FLOW alarm is issued and

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the control stays in the DISABLED mode with the FAN_OUT off.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RmTempCal

nciConfig

siSpaceTempZeroCalS7

Degrees F

 

 

0

 

 

X

X

 

 

 

SpaceTempZeroCal provides offset calibration for the space analog sensor

 

 

 

 

-5 to 5 (-3 to 3)

 

 

 

 

 

 

 

 

 

 

input and is added to the sensed value. The range of SpaceTempZeroCal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is between -5 and 5 degrees F.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TempOffstCal1

nciConfig

siResistiveOffsetCalS7[0]

Degrees F

 

 

0

 

 

 

 

 

 

 

ResistiveOffsetCal[0] provides offset calibration for the resistive analog

 

 

 

 

-15 to 15 (-9 to 9)

 

 

 

 

 

 

 

 

 

 

sensor input and is added to the sensed value. The range of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ResistiveOffsetCal[0] is between -15 and 15 degrees F.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TempOffstCal2

nciConfig

siResistiveOffsetCalS7[1]

Degrees F

 

 

0

 

 

 

 

 

 

 

ResistiveOffsetCal[1] provides offset calibration for the resistive analog

 

 

 

 

-15 to 15 (-9 to 9)

 

 

 

 

 

 

 

 

 

 

sensor input and is added to the sensed value. The range of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ResistiveOffsetCal[1] is between -15 and 15 degrees F.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VoltOffstCal1

nciConfig

siVoltageOffsetCalS12[0]

volts

 

 

0

 

 

 

 

 

 

 

VoltageOffsetCal[0] provides offset calibration for the voltage/current

 

 

 

 

-1 to 1

 

 

 

 

 

 

 

 

 

 

analog sensor input and is added to the sensed value. The current analog

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

sensor is converted to a voltage by a 249 ohm resister wired across the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

input terminals. The range of VoltageOffsetCal[0] is between -1 and 1 volt.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Voltage offsets are new in engineering units (not volts).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VoltOffstCal2

nciConfig

siVoltageOffsetCalS12[1]

volts

 

 

0

 

 

 

 

 

 

 

VoltageOffsetCal[1] provides offset calibration for the voltage/current

 

 

 

 

-1 to 1

 

 

 

 

 

 

 

 

 

 

analog sensor input and is added to the sensed value. The current analog

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

sensor is converted to a voltage by a 249 ohm resister wired across the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

input terminals. The range of VoltageOffsetCal[1] is between -1 and 1 volt.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Voltage offsets are new in engineering units (not volts).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FanOnHtMode

nciConfig

FanOnHeat

FALSE

0

 

TRUE

P

 

X

X

 

 

 

FanOnHeat specifies the operation of the fan during HEAT mode. If

 

 

 

 

TRUE

1

 

 

 

 

 

 

 

 

 

FanOnHeat is 1(TRUE), then the fan is on when the mode is HEAT. If

74

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FanOnHeat is a 0 (FALSE) the fan is never turned on when the mode is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT, and typically a thermostatically controlled switch sensing heated air

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

temperature turns on the fan.

2958— 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER

Page 94 Page 96
Image 95
Page 94 Page 96
Contents Excel 72-2958 General Considerations W7750 ControllersAppendices 74-2958 List of Figures74-2958 Setpoint ramping parameters with ramp rate calculationList of Tables Typical system overview Description of DevicesControl Provided Control ApplicationForm No Title Products CoveredOrganization of Manual Applicable LiteratureAgency Listings Product NamesAbbreviations and Definitions Controllers ConstructionDI-1 W7750ASpecial Note for the W7750B,C Unit Performance SpecificationsPower Memory Capacity Specified Space Temperature Sensing RangeCPU Excel 10 W7750C Constant Volume AHU Controller Jack Lonmark Functional Profile DIN rail adaptersAnalog Inputs Inputs/OutputsDigital Outputs Digital InputsTriac Outputs on the W7750B,C Models only T7770C Wall ModulesDuct Sensor T7770A1006T7560A,B construction in in. mm General ConfigurationsConfiguration Options Summary For W7750A,B,C Controllers Modulating HEATING/COOLING Control Allowable Heating and Cooling Equipment ConfigurationsStaged HEATING/COOLING Control Heat Pump ControlPneumatic Actuator Control Economizer ControlMIXED-OUTPUT-TYPE Control Occupancy SensorWindow Open/Closed Digital Input Wall Module OptionsSmoke Control Modes of OperationDirty Filter Monitor Indoor Air Quality IAQ OverrideAssigned OFF ModeDisabled NotStep No Description OverviewPlan the System Determine Other Bus Devices RequiredLonworks Bus Layout Lay Out Communications and Power WiringExcel VAV Cvahu DeviceVA Information Obtained from Power WiringPower Budget Calculation Example Line Loss VA Ratings For Transformer Sizing Device DescriptionML6161A/B Damper Actuator, 35 lb-in R8242A Contactor ML7984B PWM Valve ActuatorNema 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 optionsSensor with Bypass/LED and Lonworks Jack T7770 and T7560 Wall ModulesHoneywell Logo T7770D1018 Echelon Based Components and Parts Accessories SensorsAccessories Cabling Configure ControllersTroubleshooting Troubleshooting Excel 10 Controllers and Wall ModulesResistance Value ohms AlarmsExcel 10 Alarms W7750 Controller Status LED Broadcasting the Service MessageSensor Calibration Appendix A. Using E-Vision to Commission a W7750 ControllerSetting the Pid Parameters T7770C,D Wall Module Bypass Pushbutton and Override LEDAppendix B. Sequences of Operation Common Operations IAQ Option Room Temperature Sensor RmTempHeating EconomizerBypassTime Bypass Mode StatusOvrd and StatusLedRemote Setpoint RmtStptPot Setpoint Limits LoSetptLim and HiSetptLimBypass Occupied Continuous Unoccupied ModeOccupancy Mode and Manual Override Arbitration Not AssignedSetpoint Ramping Recovery Ramping for Heat Pump SystemsTime Clock OccTimeClock Schedule Master SchedMasterDemand Limit Control DLC Window Sensor StatusWndwSmoke Control FAN OperationDirty Filter Monitor Temperature Control OperationsSee for a diagram of a typical W7750 Unit Three Stages Staged Cooling ControlONE Stage TWO StagesOutdoor AIR Lockout of HEATING/COOLING Cascade Control of Modulating COOLING/HEATINGSeries 60 Modulating Control Pulse Width Modulating PWM ControlDischarge AIR LOW Limit Control Economizer ENABLE/DISABLE ControlIndoor AIR Quality IAQ Override Freeze StatStatus Points Address Input Output Points AddressControl Parameters Address Energy Management Points AddressMappable User Addresses and Table Number Enthalpy Relative TemperatureAir Flow CO2 ConcentrationEnumerated values are shown Application reset therefore, these points canPlaced in manual mode through a menu Valid states and the correspondingComments DefaultInput/Output Points NvName Field NameOccsensor Unuseddi NciIoSelect DigitalIn1Occsensor Shcedmasterin 255 NciIoSelect DigitalIn2COOLSTAGE4 COOLSTAGE1COOLSTAGE2 COOLSTAGE3Siinvalid SixtyfiftyTrue PPM SiinvalidFalse OccSensr NvoIO EconEnSw NvoIO EconEnableInPosition when poor indoor air quality is detected StatusDI3 NvoIO UbDigitalInNvName Default CommentsControl Parameters MaxClRamp, OdTempMaxClRamp, OdEnthalpyEnableMaxClRamp NciAux1SetPt UbMaxClRampS0 Degrees F/Hr MinClRamp NciAux1SetPt UbMinClRampS0 Degrees F/HrPPM GainHeatProp NciAux2SetPt UbKpHeatS2 Degrees F Degrees C Discharge air temperature cascade control loopGainCoolProp NciAux2SetPt UbKpCoolS2 Degrees F Degrees C Gain for the cooling control loopEnergy Management Points Network variable input fails Refer to WSHPEnable.valueNviFree1 Value Auxiliary functions. nviFree1 controls the FREE1OUT255 SrcTimeClkCt NvoTimeClk Value NviTimeClk ValueDestTimeClk NviTimeClk State Refer to nviTimeClk.valueStatus Points Bit Offset = InvalidSetPtAlrm Alarmbit1Bit Offset = SensorFailAlrm Bit Offset = FrostProtectAlrmUpdateallfields NoalarmNodedisabled SmokealarmCool DisabledmodeStartupwait HeatStatusManOcc NvoData1 NetManOcc StatusEconEn NvoData1 EconEnableAir flow switch is configured NciAux1SetPts.ubOdEnthalpyEnableS2For both heating or cooling HeatStgsOn NvoData1 HeatStagesOnAuxiliary heating stages are turned on CoolStgsOn NvoData1 CoolStagesOnMonitorSw NvoData1 MonSwitch Is 1, the algorithm controls as per the settings foundNciConfig.SmokeControl Controller mode is switched to FreezeprotectDischargetempfield BypasstimerfieldTempcontrolptfield SpacetempfieldUbinvalid Bit Offset = Temperature SetPtError NvoError Errorbit0 StatusError NvoError Errorbit0SpaceTempError NvoError Errorbit0Bit Offset = SpaceCO2Error NvoError Errorbit1 NvoError Errorbit1Bit Offset = RtnEnthalpyError NvoError Errorbit1 Are disabled as if the sensor was not configuredBit Offset = NvByPassError NvoError Errorbit3 Bit Offset = NvWindowError NvoError Errorbit2Bit Offset = NvDlcShedError NvoError Errorbit2 Bit Offset = NvTodEventError NvoError Errorbit3Calibration Points CfglocalCfgexternal CfgnulConfiguration Parameters False True UseRaTempCtl NciConfig DisMinHtTime NciConfig DisableHeatMinTimeDisMinClTime NciConfig DisableCoolMinTime CascCntrl NciConfig CascadeControlBypassonly Last NETOffset Absolutemiddle None NormalLonmark /Open System Points Hvacoff HvacautoHvacheat Hvacmrngwrmup Hvacprecool Hvaccool Hvacnightpurge HvacnulSrcRmTemp NvoSpaceTemp Degrees F 74-2958 100DestRmTemp NviSpaceTemp Degrees F SNVTtempp 14 toHvactest Hvacauto HvacnulHvacmrngwrmup Alarmnotifydisabled NvoStatus Unabletomeasure NvoStatus Electricalfault103 NvoStatus Inalarm 255 Not configured 74-2958Swon SrcEconEnCt NvoEcon Value On other nodes. If the economizer function is configured byCorresponding economizer function is not enabled because SrcEconEnable NvoEcon StateDirect Access And Special Points OFF Data Share Points Mapped points = number of mapped points per Excel Approximate Memory Size Estimating Procedure=using One-to-Many and not using points = including mapped points and others forSensor Use Sensor Resistance Versus Temperature Resistance OhmsResistance Sensors Sensor TypeAbove and Below Setpoint Resistance Ohms Offset Setpoint TemperatureDirect Setpoint Temperature T7770B,C 10K ohm setpoint potentiometer RelativeSensor Voltage Versus Humidity Relative Humidity Percentage Voltage/Current SensorsSensor Voltage Versus Humidity Humidity Percentage 113 74-2958 Sensor Current Versus Enthalpy volts Enthalpy mAMAmAmAmA AmA mA mA T7242 or equivalent74-2958 114 Sensor Voltage Versus Input Voltage To A/D Voltage to A/D 50.0.13 Sensor Voltage Vdc Versus Pressure InwPressure Inw kPa Sensor Voltage Vdc Inw
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