T7780 ddwm bypass pushbutton, W7750 – Honeywell W7761A User Manual

Page 38

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EXCEL 10 W7761A INPUT/OUTPUT DEVICE

38

74-2699

Table 10. LED States.

Alarm Condition

Hardware or

Software Failure

Service LED Blink Rate

(Cycles per second)

None

None

1

Any alarm condition None

2

Don't Care

Failed

steady ON or OFF

1. Off—no power to the processor.
2. Continuously On—processor is in initialized state.
3. Slow Blink—controlling, normal state.
4. Fast Blink—when the Excel 10 has an alarm condition.

M10095

1

2

3

4

5

6

7

8

9

10

11 12 13 14

15

J3

31

30

29

28 27 26 25

24 23 22 21

20

19 18 17 16

EARTH `

GROUND

LED

BYPASS SEN

SOR GROUND S

ET PT

A1 1 R

GROUND

A1 2 R

A13 `

V/mA

GROUND A14V

/mA

2 2 VD C`

OUT

EBUS

D 14

GROUND

D13

D1 2

GROUND

D1 1

24 VAC

C OM

OUT 1

OU T 2

OUT 3

OUT 4

OU T 5

OUT 6

OU T 7

OUT 8

STATUS`
LED

W7750

Fig. 25. LED location on W7761A.

T7780 DDWM Bypass Pushbutton

See Fig. 26 for the T7780 DDWM bypass pushbutton location (occupied or unoccupied). The T7780 DDWM has two methods
for generating its neuron ID, shorting two pads or winking.

1. Pressing the bypass pushbutton whenever a Carat (

) on the bottom of the LCD display is flashing (Menu Selection

Mode).

2. Pressing the bypass pushbutton when the T7780A DDWM is in wink mode (LCD display shows WINK when E-Vision

sends a Service Message out on the E-Bus).

When the space covered by the T7780 DDWM is in Occupied mode, the sun symbol is shown on the left side of the LCD
display. When the space is in Standby mode, the half-sun symbol is shown. When the space is in Unoccupied mode, the moon
symbol is shown.

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