Temperature Degrees | Honeywell W7761A instruction

36

Fig. 23. Temperature sensor resistance plots.

Alarms

When an Excel 10 has an alarm condition, it reports it to the central node on the E-Bus (typically, the Excel 10 Zone Manager). See Table 9. Information contained in an alarm message is:

∙ Subnet Number:

E-Bus subnet that contains the Excel 10 node that has the alarm condition. Subnet 1 is on the Zone Manager side of the router; Subnet 2 is on the other side.

∙ Node Number:

Excel 10 node that has the alarm condition (see Network Status). ∙ Alarm Type:

Specific alarm being issued. An Excel 10 can provide the alarm types listed in Table 9.

20K

10K

60K

50K

40K

30K

RESISTANCE (OHMS)

Step 6. Configure Devices

Excel E-Vision PC Software is used to configure W7761A Devices to match their intended application. The E-Vision User Guide form, 74-2588 provides details for operating the PC software.

Step 7. Troubleshooting

Troubleshooting Excel 10 Controllers and Wall Modules

In addition to the following information, refer to the Installation Instructions and Checkout and Test manual for each product. See the Applicable Literature section for form numbers.

Temperature Sensor and Setpoint Potentiometer Resistance Ranges

The T7770 Wall Module or the C7770A Air Temperature Sensor has the following specified calibration points, which are plotted in Fig. 23:

Temperature (°F)Resistance Value (ohms)

9911,520

8516,301

7024,039

5536,280

4548,000

80K

70K

20K OHM AT

77oF (25oC)

				EXCEL 10 W7761A INPUT/OUTPUT DEVICE

	Table 8. Excel 10 W7761A Device Ordering Information (Continued).

Part Number			Product Description		Comments

			Cabling (Continued):

Honeywell AK3752		Outputs/Power: 14 to 18 AWG (2.0 to 1.0 mm2)			NEC Class 2 140°F (60°C) rating
(typical or equivalent)

Honeywell AK3702		18	AWG (1.0 mm2) twisted pair		Non-plenum
(typical or equivalent)

Honeywell AK3712		16	AWG (1.3 mm2) twisted pair		Non-plenum
(typical or equivalent)

Honeywell AK3754		14	AWG (2.0 mm2) two conductor		Non-plenum
(typical or equivalent)

30	40 50	60 70 80	90	100 110 oF
0	10	20	30	40 oC
	TEMPERATURE (DEGREES)			M5874A

74-2699

Image 36

Honeywell W7761A specifications Temperature Degrees

Contents

Excel 10 W7761A Remote Input/Output Device List of Tables Appendices Description of Devices Typical system overview Control Application Control ProvidedProducts Covered Organization of Manual Product Names Agency Listings Abbreviations and Definitions Excel 10 W7761A INPUT/OUTPUT Device Construction Controllers Excel 10 W7761A Remote I/O Device W7761A construction in in. mm Performance Specifications Power List Of Available Points W7761A Specified Space Temperature Sensing Range Environmental Operating TemperatureShipping Temperature Memory Capacity Discharge Air Temperature Outdoor Air TemperatureReturn Air Temperature Mixed Air Temperature Wall Modules 5585 Configurations T7780 construction, subbase dimensions in in. mm Mixed-Output-Type Control Occupancy SensorWindow Open/Closed Digital Input Wall Module Options Overview Plan The SystemApplication Steps Step No Description Lay Out Communications and Power Wiring Determine Other Bus Devices RequiredBus Layout 750,1$ Power Wiring Power Budget Calculation Example VA Ratings For Transformer Sizing Device Description Line Loss VA Rating Nema class 2 transformer voltage output limits Line VOLTAGE` GREATER` Than 150 VAC Prepare Wiring Diagrams General ConsiderationsW7761A Devices W7761A I/O Description Terminal Number Description Temperature Sensor DE V IC E Window Contact Contact Closed = Occupancy Sensor Occupied Valve Actuator Bus Termination Module Typical Pneumatic transducer Series 60 Floating to W7761A See for E-Bus termination wiring options +$672 Order Equipment Excel 10 W7750 ControllersT7770 Wall Modules Sensors Accessories Echelon Based Components and Parts Cabling Temperature Degrees Broadcasting the Service Message Excel 10 AlarmsW7761A Device Status LED T7780 Ddwm Bypass Pushbutton LED States Appendix A. Using E-Vision to Commission a W7761 Device Adding Analog Inputs Enthalpy 4 to 20 mA Adding Other VOLTAGE/CURRENT Sensors Adding Digital Inputs Room Temperature Sensor RmTemp Appendix B. Sequences of OperationCommon Operations Window Sensor StatusWndw Dirty Filter MonitorSeries 60 Modulating Control Pulse Width Modulating PWM Control Temperature Relative Humidity RelativeAir Flow CO 2 Concentration Default Table C1. Input/Output Points Left Table 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 Table C2. Control Parameters Right SH MA DA EV HW MN TS Noalarm Table C3. Status Points Left Table 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 Left Table C5. Direct Access And Special Points Right Approximate Memory Size Estimating Procedure Fig. D-1. Point capacity estimate for Zone Manager Appendix E. Sensor Data for Calibration Resistance SensorsSensor Type Sensor Use 1956.79 Voltage/Current Sensors Table E-4. Sensor Voltage Versus HumidityHumidity 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 Table E-9. Sensor Voltage Versus CO 2 Concentration CO 2 Concentration PPM Sensor VoltageTable E-10. Sensor Voltage Versus Input Voltage To A/D Voltage to A/D Sensor Voltage Table E-11. Sensor Voltage Vdc Versus Pressure InwPressure Inw kPa Sensor Voltage Vdc 3ODD