Honeywell W7761A - page 73

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

73 74-2699

Table E-2 lists the points for Sensor Resistance versus Temperature. Fig. E-2 shows the graph of these points.

Table E-2. Sensor Resistance Versus Temperature.

°F (°C) Resistance Ohms

30 (-1.1) 1956.79

35 (1.7) 1935.79

40 (4.4) 1914.79

45 (7.2) 1893.79

50 (10) 1872.79

55 (12.8) 1851.79

60 (15.6) 1830.79

65 (18.3) 1809.79

70 (21.1) 1788.79

75 (23.9) 1767.79

80 (26.7) 1746.79

85 (29.4) 1725.79

90 (32.2) 1704.78

95 (35) 1683.78

100 (37.8) 1662.78

105 (40.6) 1641.78

110 (43.3) 1620.78

115 (46.1) 1599.78

120 (48.9) 1578.78

1650

1600

1550

1500

1700

1750

1800

1850

1900

1950

2000

555045403530 60 65 70 75 80 85 90 95 100 105 110 115120

OHMS

°F

SENSOR RESISTANCE VERSUS TEMPERATURE

M11960

23.9

21.1

18.3

15.6

12.8

10

7.2

4.4

1.7

-1.1 26.729.432.235 40.6 46.1

37.8 43.3 48.9

°C

Fig. E-2. Graph of Sensor Resistance versus Temperature.

Sensor Type:

T7770A,B,C,D sensor—(current feature that can be used with the RIO Device) and C7770A.

Sensor Use:

Space Temperature and Discharge/Return Air Temperature.

Table E-3 lists the points for Sensor Resistance versus Temperature. Fig. E-3 shows the graph of these points.

Table E-3 Sensor Resistance Versus Temperature.

°F (°C) Resistance Ohms

40 (4.4) 9961.09

45 (7.2) 9700.90

50 (10) 9440.72

55 (12.8) 9180.53

60 (15.6) 8920.35

Contents

Main CONTENTS Excel 10 W7761A Remote Input/Output Device Page INTRODUCTION Description of Devices Fig. 1. Typical system overview. Control Application Control Provided Products Covered Organization of Manual Product Names not applicable to the RIO device EXCEL 10 W7761A INPUT/OUTPUT DEVICE Agency Listings Abbreviations and Definitions EXCEL 10 W7761A INPUT/OUTPUT DEVICE economizer dampers not Construction Controllers it is intended that the cover never be removed 9 74-2699 123456789101112131415J3 Fig. 3. Excel 10 W7761A Remote I/O Device. M10118 31302928272625242322212019181716 W7761A EXCEL 10 W7761A INPUT/OUTPUT DEVICE Fig. 4. W7761A construction in in. (mm). must Page Page CAUTION 80 T7770C Wall Modules T7770A1006 Configurations Mixed-Output-Type Control Occupancy Sensor Window Open/Closed Digital Input Wall Module Options Dirty Filter Monitor APPLICATION STEPS Overview Step 1. Plan The System Step 2. Determine Other Bus Devices Required Step 3. Lay Out Communications and Power Wiring E-Bus Layout Page Power Wiring IMPORTANT Page Page Make earth ground connections with the shortest possible wire run using 14 AWG (2.0 mm Step 4. Prepare Wiring Diagrams General Considerations W7761A Devices Page 26 74-2699 W7761A REMOTE I/O DEVICE Fig. 16. Typical T7770A and C7770A wiring diagram. (For note 2, refer to Fig. 15.) + - T7770A WALL MODULE C7770A AIR TEMPERATURE SENSOR W7761A REMO TE I/O DEVICE + - Enthalpy (4 to 20mA) Humidity (4 to 20mA) W7761A REMOTE I/O DEVICE + - Fig. 18. Typical Window and Occupancy sensor wiring diagram. (For note 2, refer to Fig. 15.) W7761A REMOTE I/O DEVICE + - PWM VALVE ACTUATOR W7761A REMOTE I/O DEVICE + - Fig. 20. Typical Pneumatic transducer (Series 60 - Floating) to W7761A. E-Bus Termination Module Page Page Step 5. Order Equipment Page Page Step 6. Configure Devices Step 7. Troubleshooting Troubleshooting Excel 10 Controllers and Wall Modules Temperature Sensor and Setpoint Potentiometer Resistance Ranges Alarms Broadcasting the Service Message W7761A Device Status LED T7780 DDWM Bypass Pushbutton APPENDICES Appendix A. Using E-Vision to Commission a W7761 Device. SENSOR CALIBRATION voltage/current is not supported on the W7761A. Page Page Appendix B. Sequences of Operation. Common Operations Page Appendix C. Complete List of Excel 10 W7761A Remote I/O Device User Addresses. writes if applicable as allowed Table C1. Input/Output Points (Left). Table C1. Input/Output Points (Right). Page Page Page Page Page Page ) Page Table C2. Control Parameters (Left). Table C2. Control Parameters (Right). Table C3. Status Points (Left). Table C3. Status Points (Right). Table C3. Status Points (Left Continued). Table C3. Status Points (Right Continued). EXCEL 10 W7761A INPUT/OUTPUT DEVICE Table C3. Status Points (Left Continued). Table C3. Status Points (Right Continued). Table C4. Configuration Parameters (Left). Table C4. Configuration Parameters (Right). Page Page Page Page Page Table C5. Direct Access And Special Points (Left). Table C5. Direct Access And Special Points (Right). Appendix D. Q7750A Excel 10 Zone Manager Point Estimating Guide. Approximate Memory Size Estimating Procedure. Direct Access Appendix E. Sensor Data for Calibration. Resistance Sensors. Page Voltage/Current Sensors. Page Page EXCEL 10 W7761A INPUT/OUTPUT DEVICE Fig. E-8. C7400A Solid State Enthalpy Sensor output current vs. relative humidity. DCBA (4) (10) (16) (21) (27) (32) (38) 605040 70 80 90 100