Honeywell W7761A specifications Bus Termination Module

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

				MMC325 PNEUMATIC									M
				TRANSDUCER
											M
				24 (H)	24 (N)	24 (H)	24 (N)	INCREASE	DECREASE				4
											B
				2		3				1
+												PNEUMATIC
													VALVE
24 VAC
-
31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
DI-4	GND	DI-3	DI-2	GND	DI-1	24 VAC	24 VAC COM	OUT 1	OUT 2	OUT 3	OUT 4	OUT 5	OUT 6	OUT 7	OUT 8
W7761A								TRIAC EQUIVALENT CIRCUIT
REMOTE I/O
DEVICE
E GND	NOT USED	NOT USED	AI-1 OHM	GND	AI-2 OHM	AI-3 OHM	GND	AI-4 OHM	AI-5 V/mA	GND	AI-6 V/mA	22 VDC OUT	E-BUS		E-BUS JACK
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	J3
5

1REVERSE WIRES (INCREASE/DECREASE) TO REVERSE ACTION (DIRECT/REVERSE).

2MAKE SURE ALL TRANSFORMER/POWER WIRING IS AS SHOWN: REVERSING TERMINATIONS WILL RESULT IN EQUIPMENT MALFUNCTION.

3OPTIONAL 24 VAC WIRING TO NEXT CONTROLLER.

4USE 1/4 IN (6 MM) PNEUMATIC TUBING. MINIMUM BRANCH LINE MUST BE 6 FT. (1.8M) OR LONGER.

5EARTH GROUND WIRE LENGTH SHOULD BE HELD TO A MINIMUM. USE THE HEAVIEST GAUGE WIRE AVAILABLE, UP TO 14 AWG (2.O MM2) WITH A MINIMUM OF 18 AWG (1.O MM2), FOR EARTH GROUND WIRE.

M15278

Fig. 20. Typical Pneumatic transducer (Series 60 - Floating) to W7761A.

E-Bus Termination Module

One E-Bus Termination Module, part number 209541B is required for a single terminated E-Bus or two E-Bus Termination Module, part number 209541B for a double terminated E-Bus (see Fig. 21). Refer to the E-Bus Wiring Guidelines form, 74- 2865 for termination module placement rules.

30 74-2699