Honeywell W7761A Owner's Manual page 26

GROUND 5
AI-1 4
3
2
EGND 1
See Fig. 20 to wire a pneumatic transducer to a W7761A.
Fig. 16. Typical T7770A and C7770A wiring diagram. (For note 2, refer to Fig. 15.)
Analog ground
Analog Input 1 resistance
Not Used
Not Used
Earth Ground
+
24 VAC
-
31 30 29 28 27
W7761A
REMOTE I/O
DEVICE
1 2 3 4 5
1
9 8 7 6 5 4 3 2 1
T7770A
WALL
MODULE
1
EARTH GROUND WIRE LENGTH SHOULD BE HELD TO A MINIMUM.
USE THE HEAVIEST GAUGE WIRE AVAILABLE, UP TO 14 AWG (2.O MM
WITH A MINIMUM OF 18 AWG (1.O MM
2
TO ASSURE PROPER ELECTRICAL CONTACT, WIRES MUST BE TWISTED
TOGETHER BEFORE INSERTION INTO THE TERMINAL BLOCK.
EXCEL 10 W7761A INPUT/OUTPUT DEVICE
C7770A AIR
TEMPERATURE SENSOR
26 25 24 23 22 21 20 19
TRIAC EQUIVALENT CIRCUIT
6 7 8 9 10 11 12 13
2
JACK FOR
E-BUS
NETWORK
ACCESS
2
), FOR EARTH GROUND WIRE.
26
18 17 16
E-BUS
14 15 J3
2
E-BUS
2
)
M15276
74-2699