Honeywell specifications Excel 10 W7761A INPUT/OUTPUT Device

Page 7

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

DDF - Delta Degrees Fahrenheit.

D/X - Direct Expansion; refers to a type of mechanical cooling where refrigerant is (expanded) to its cold state, within a heat-exchanging coil that is mounted in the air stream supplied to the conditioned space.

E-Bus- Honeywell implementation of Echelon® LonWorks® network for communication among Excel 10 Controllers.

E-Bus Segment - An E-Bus section containing no more than 60 Excel 10s. Two segments can be joined together using a router.

Echelon® - The company that developed the LON® bus and the Neuron® chips used to communicate on the E-Bus.

Economizer - Refers to the mixed-air dampers that regulate the quantity of outdoor air that enters the building. In cool outdoor conditions, fresh air can be used to supplement the mechanical cooling equipment. Because this action saves energy, the dampers are often referred to as economizer dampers.

EMI - Electromagnetic Interference; electrical noise that can cause problems with communications signals.

E-Link- Refers to the Q7750A Zone Manager. This name is used in internal software and in CARE software.

EMS - Energy Management System; refers to the controllers and algorithms responsible for calculating optimum operational parameters for maximum energy savings in the building.

EEPROM - Electrically Erasable Programmable Read Only Memory; the variable storage area for saving user setpoint values and factory calibration information.

EPROM - Erasable Programmable Read Only Memory; the firmware that contains the control algorithms for the Excel 10 Controller.

Excel 10 Zone Manager - A controller that is used to interface between the C-Bus and the E-Bus. The Excel 10 Zone Manager also has the functionality of an Excel 100 Controller, but has no physical I/O points.

NOTE: The Q7750A Zone Manager can be referred to as E-Link in the internal software, CARE.

FCU - Fan Coil Unit.

Firmware - Software stored in a nonvolatile memory medium such as an EPROM.

Floating Control - Refers to Series 60 Modulating Control of a valve or damper. Floating Control utilizes one digital output to pulse the actuator open, and another digital output to pulse it closed.

FTT - Free Topology Transceiver.

IAQ - Indoor Air Quality. Refers to the quality of the air in the conditioned space, as it relates to occupant health and comfort.

I/O - Input/Output; the physical sensors and actuators connected to a controller.

I x R - I times R or current times resistance; refers to Ohm’s Law: V = I x R.

K - Degrees Kelvin.

Level IV - Refers to a classification of digital communication wire. Formerly known as UL Level IV, but not equivalent to Category IV cable. If there is any question about wire compatibility, use Honeywell-approved cables (see Step 5 Order Equipment section).

NEC - National Electrical Code; the body of standards for safe field-wiring practices.

NEMA - National Electrical Manufacturers Association; the standards developed by an organization of companies for safe field wiring practices.

Node - A Communications Connection on a network; an Excel 10 Controller is one node on the E-Bus network. NV - Network Variable; an Excel 10 parameter that can be viewed or modified over the E-Bus network.

PC - An IBM compatible Personal Computer with 386 or higher processor and capable of running Microsoft® Windows™ Version 3.1.

Pot - Potentiometer. A variable resistance electronic component located on the T7770B,C Wall Module; used to allow user- adjusted setpoints to be input into the Excel 10 Controller.

7

74-2699

Page 6 Page 8
Image 7
Page 6 Page 8
Contents Excel 10 W7761A Remote Input/Output Device Appendices List of TablesTypical system overview Description of DevicesOrganization of Manual Control ApplicationControl Provided Products CoveredProduct Names Abbreviations and Definitions Agency ListingsExcel 10 W7761A INPUT/OUTPUT Device Controllers ConstructionExcel 10 W7761A Remote I/O Device W7761A construction in in. mm List Of Available Points W7761A Performance Specifications PowerMemory Capacity Specified Space Temperature Sensing RangeEnvironmental Operating Temperature Shipping TemperatureMixed Air Temperature Discharge Air TemperatureOutdoor Air Temperature Return Air Temperature5585 Wall ModulesT7780 construction, subbase dimensions in in. mm ConfigurationsWall Module Options Mixed-Output-Type ControlOccupancy Sensor Window Open/Closed Digital InputPlan The System OverviewApplication Steps Step No Description Determine Other Bus Devices Required Lay Out Communications and Power WiringBus Layout 750,1$ Power Budget Calculation Example Power WiringLine Loss VA Ratings For Transformer Sizing Device DescriptionNema class 2 transformer voltage output limits VA RatingLine VOLTAGE` GREATER` Than 150 VAC General Considerations Prepare Wiring DiagramsW7761A Devices Terminal Number Description W7761A I/O DescriptionTemperature Sensor DE V IC E Window Contact Contact Closed = Occupancy Sensor Occupied Valve Actuator Typical Pneumatic transducer Series 60 Floating to W7761A Bus Termination ModuleSee for E-Bus termination wiring options +$672 Sensors Order EquipmentExcel 10 W7750 Controllers T7770 Wall ModulesEchelon Based Components and Parts AccessoriesCabling Temperature Degrees Excel 10 Alarms Broadcasting the Service MessageW7761A Device Status LED LED States T7780 Ddwm Bypass PushbuttonAdding Analog Inputs Enthalpy 4 to 20 mA Appendix A. Using E-Vision to Commission a W7761 DeviceAdding Other VOLTAGE/CURRENT Sensors Adding Digital Inputs Appendix B. Sequences of Operation Room Temperature Sensor RmTempCommon Operations Pulse Width Modulating PWM Control Window Sensor StatusWndwDirty Filter Monitor Series 60 Modulating ControlCO 2 Concentration Temperature Relative HumidityRelative Air FlowTable C1. Input/Output Points Left DefaultTable C1. Input/Output Points Right Excel 10 W7761A INPUT/OUTPUT Device Values that can be assigned to any output channels English Metric or User Address DI3Sel1Type Refer to the description for DI1Sel1Type Stoff Stnul Stlow Stmed Sthigh Ston DO2Type Excel 10 W7761A INPUT/OUTPUT Device SrcDigIn2Sts Refer to the description for SrcDigIn1Sts Table C2. Control Parameters Left SH MA DA EV HW MN TS Table C2. Control Parameters RightTable C3. Status Points Left NoalarmTable C3. Status Points Right RIO1 Software version NvoStatus InOverride SH MA DA EV HW MN TS Table C4. Configuration Parameters Left Table C4. Configuration Parameters Right DO0 Higher than the value specified for AILowLimit DO4 Seconds = 25.6 seconds DO6PWMPeriod Refer to the description for DO1PWMPeriod Table C5. Direct Access And Special Points Right Table C5. Direct Access And Special Points LeftFig. D-1. Point capacity estimate for Zone Manager Approximate Memory Size Estimating ProcedureSensor Use Appendix E. Sensor Data for CalibrationResistance Sensors Sensor Type1956.79 Table E-4. Sensor Voltage Versus Humidity Voltage/Current SensorsHumidity Percentage Sensor Voltage C7600C1008 4 to 20 mA C7600C output current vs. humidity Sensor Type Fig. E-6. Graph of Sensor Current versus Enthalpy volts CO 2 Concentration PPM Sensor Voltage Table E-9. Sensor Voltage Versus CO 2 ConcentrationTable E-10. Sensor Voltage Versus Input Voltage To A/D Table E-11. Sensor Voltage Vdc Versus Pressure Inw Voltage to A/D Sensor VoltagePressure Inw kPa Sensor Voltage Vdc 3ODD
Top Page Image Contents