Manuals / Honeywell / Video Game / Video Gaming Accessories

Honeywell W7750A specifications SrcEconEnCt NvoEcon Value, Because the selected sensor has failed

Models: W7750A

1 116

Download 116 pages 10.25 Kb

Page 105

Table 26. LONMARK® /Open System Points. (Continued)

User Address

NvName

Field Name

(Metric) or States plus Range

DigitalStateor ValueofState

Default

E-Vision(M,P,S)

Share

Map

DirectAccess

HardwareConfig.

ManualConfig.

FailureDetect

Comments

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

Engineering Units: English

SrcEconEnCt

nvoEcon

value

0 to 100

0

X

nvoEcon allows one controller to determine the suitability of outdoor air for

(SNVT_switch)

free cooling and share this with other nodes and is typically bound to Econ

on other nodes. If the economizer function is configured by

Config.EconEnable, Econ is periodically calculated from the local sensor

specified by Config.EconEnable and is sent on the network. Econ does not

affect Econ. The output has the following states: If the state is SW_OFF

and the value is 0, then the outdoor air is not suitable for free cooling. If the

state is SW_ON and the value is 100 percent, then the outdoor air is

suitable for free cooling. If the state is SW_NUL and the value is 0, the

corresponding economizer function is not enabled because

Config.EconEnable is ECON_NUL, DIFF_TEMP, or DIFF_ENTH or

because the selected sensor has failed.

SrcEconEnable

nvoEcon

state

SW_OFF

0

SW_NUL

M

X

X

For nvoEcon.state, refer to nvoEcon.value.

(SNVT_switch)

SW_ON

1

SW_NUL

255

105

74-2958— 1

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER

Image 105

Honeywell W7750A SrcEconEnCt NvoEcon Value, On other nodes. If the economizer function is configured by, 255 105 74-2958

Contents

Excel General Considerations W7750 Controllers Appendices72-2958 74-2958 List of Figures 74-2958 Setpoint ramping parameters with ramp rate calculation List of Tables Typical system overview Description of Devices Control Provided Control Application Organization of Manual Products CoveredApplicable Literature Form No Title Agency Listings Product Names Abbreviations and Definitions Controllers Construction DI-1 W7750A Performance 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 adapters Analog Inputs Inputs/Outputs Digital Inputs Triac Outputs on the W7750B,C Models onlyDigital Outputs Duct Sensor Wall ModulesT7770A1006 T7770C T7560A,B construction in in. mm General Configurations Configuration Options Summary For W7750A,B,C Controllers Staged HEATING/COOLING Control Allowable Heating and Cooling Equipment ConfigurationsHeat Pump Control Modulating HEATING/COOLING Control Pneumatic Actuator Control Economizer Control Window Open/Closed Digital Input Occupancy SensorWall Module Options MIXED-OUTPUT-TYPE Control Dirty Filter Monitor Modes of OperationIndoor Air Quality IAQ Override Smoke Control Disabled OFF ModeNot Assigned Plan the System OverviewDetermine Other Bus Devices Required Step No Description Lonworks Bus Layout Lay Out Communications and Power Wiring Excel 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 Loss Nema class 2 transformer voltage output limits Power wiring details for one Excel 10 per Transformer General Considerations Prepare Wiring Diagrams W7750 Controllers Terminal Terminal Number Description Factory Default Digital Outputs Constant 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 Module Brown Orange Order Equipment Lonworks Bus termination wiring options T7770 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 Cabling Alarms Excel 10 AlarmsResistance Value ohms W7750 Controller Status LED Broadcasting the Service Message Setting the Pid Parameters Appendix A. Using E-Vision to Commission a W7750 ControllerT7770C,D Wall Module Bypass Pushbutton and Override LED Sensor Calibration Appendix B. Sequences of Operation Common Operations Heating Room Temperature Sensor RmTempEconomizer IAQ Option Remote Setpoint RmtStptPot Bypass Mode StatusOvrd and StatusLedSetpoint Limits LoSetptLim and HiSetptLim BypassTime Occupancy Mode and Manual Override Arbitration Continuous Unoccupied ModeNot Assigned Bypass Occupied Time Clock OccTimeClock Recovery Ramping for Heat Pump SystemsSchedule Master SchedMaster Setpoint Ramping Smoke Control Window Sensor StatusWndwFAN Operation Demand Limit Control DLC Temperature Control Operations See for a diagram of a typical W7750 UnitDirty Filter Monitor ONE Stage Staged Cooling ControlTWO Stages Three Stages Series 60 Modulating Control Cascade Control of Modulating COOLING/HEATINGPulse Width Modulating PWM Control Outdoor AIR Lockout of HEATING/COOLING Indoor AIR Quality IAQ Override Economizer ENABLE/DISABLE ControlFreeze Stat Discharge AIR LOW Limit Control Control Parameters Address Input Output Points AddressEnergy Management Points Address Status Points Address Mappable User Addresses and Table Number Air Flow Relative TemperatureCO2 Concentration Enthalpy Placed in manual mode through a menu Application reset therefore, these points canValid states and the corresponding Enumerated values are shown Input/Output Points DefaultNvName Field Name Comments Occsensor Shcedmasterin NciIoSelect DigitalIn1255 NciIoSelect DigitalIn2 Occsensor Unuseddi COOLSTAGE2 COOLSTAGE1COOLSTAGE3 COOLSTAGE4 Siinvalid Sixtyfifty PPM Siinvalid FalseTrue Position when poor indoor air quality is detected EconEnSw NvoIO EconEnableInStatusDI3 NvoIO UbDigitalIn OccSensr NvoIO NvName Default Comments Control 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 C Energy Management Points NviFree1 Value Refer to WSHPEnable.valueAuxiliary functions. nviFree1 controls the FREE1OUT Network variable input fails DestTimeClk NviTimeClk State NviTimeClk ValueRefer to nviTimeClk.value 255 SrcTimeClkCt NvoTimeClk Value Status Points Bit Offset = SensorFailAlrm Alarmbit1Bit Offset = FrostProtectAlrm Bit Offset = InvalidSetPtAlrm Nodedisabled NoalarmSmokealarm Updateallfields Startupwait DisabledmodeHeat Cool Air flow switch is configured StatusEconEn NvoData1 EconEnableNciAux1SetPts.ubOdEnthalpyEnableS2 StatusManOcc NvoData1 NetManOcc Auxiliary heating stages are turned on HeatStgsOn NvoData1 HeatStagesOnCoolStgsOn NvoData1 CoolStagesOn For both heating or cooling NciConfig.SmokeControl Is 1, the algorithm controls as per the settings foundController mode is switched to Freezeprotect MonitorSw NvoData1 MonSwitch Tempcontrolptfield BypasstimerfieldSpacetempfield Dischargetempfield Ubinvalid SpaceTempError StatusError NvoError Errorbit0NvoError Errorbit0 Bit Offset = Temperature SetPtError NvoError Errorbit0 Bit Offset = RtnEnthalpyError NvoError Errorbit1 NvoError Errorbit1Are disabled as if the sensor was not configured Bit Offset = SpaceCO2Error NvoError Errorbit1 Bit Offset = NvDlcShedError NvoError Errorbit2 Bit Offset = NvWindowError NvoError Errorbit2Bit Offset = NvTodEventError NvoError Errorbit3 Bit Offset = NvByPassError NvoError Errorbit3 Cfgexternal CfglocalCfgnul Calibration Points Configuration Parameters False True DisMinClTime NciConfig DisableCoolMinTime DisMinHtTime NciConfig DisableHeatMinTimeCascCntrl NciConfig CascadeControl UseRaTempCtl NciConfig Offset Absolutemiddle Last NETNone Normal Bypassonly Lonmark /Open System Points Hvacheat HvacautoHvacmrngwrmup Hvacprecool Hvaccool Hvacnightpurge Hvacnul Hvacoff DestRmTemp NviSpaceTemp Degrees F 74-2958 100SNVTtempp 14 to SrcRmTemp NvoSpaceTemp Degrees F Hvacauto Hvacnul HvacmrngwrmupHvactest Alarmnotifydisabled 103 NvoStatus Inalarm NvoStatus Electricalfault255 Not configured 74-2958 NvoStatus Unabletomeasure Swon Corresponding economizer function is not enabled because On other nodes. If the economizer function is configured bySrcEconEnable NvoEcon State SrcEconEnCt NvoEcon Value Direct 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 Excel Resistance Sensors Sensor Resistance Versus Temperature Resistance OhmsSensor Type Sensor Use Direct Setpoint Temperature Offset Setpoint TemperatureT7770B,C 10K ohm setpoint potentiometer Relative Above and Below Setpoint Resistance Ohms Voltage/Current Sensors Sensor Voltage Versus Humidity Humidity PercentageSensor Voltage Versus Humidity Relative Humidity Percentage 113 74-2958 Sensor Current Versus Enthalpy volts Enthalpy mA T7242 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