Honeywell T775A Series Installation Instructions Manual page 8

T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
T
T
+
C
NC
NC
COM
C
C
NO
NO
NO
NO
NO NO
COM
C
NC NC
LOAD 1
LOAD 4
Fig. 13. Wiring for Four-Stage Control with 240 Vac.
RELAY 1 RELAY 2
1
NO NO
C C
NC NC
CLOSE RELAY TO DRIVE DEVICE CLOSED. RELAY 1 SHOWN.
1
(RELAYS 1 AND 3 ARE USED FOR CLOSE).
2 CLOSE RELAY TO DRIVE DEVICE OPEN. RELAY 2 SHOWN.
(RELAYS 2 AND 4 ARE USED FOR OPEN).
THE RELAYS MUST BE WIRED IN PAIRS WITH RELAYS 1 AND 2
BEING THE FIRST PAIR, AND RELAYS 3 AND 4 BEING THE SECOND PAIR.
Fig. 14. Wiring for Floating Output (Relay 1 and Relay
2 Pair Shown)
62-0254—13
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SENSOR A
240V
COM
LOAD
3
LOAD
C
2
M33849
120/240 VAC LINE
2
DEVICE
NO
COM
CLOSE
COM
OPEN
COM
NO
M31361
.
ML7984 ACTUATOR
T1 T2 B R W
C
POWER
B
R
W
MODULATING OUTPUT
B
TERMINAL (MOD 1)
R
W
Fig. 15. Wiring for ML7984 Valve Actuator
(Using 4 to 20 mA Signal)
.
–
DIGITAL
+
INPUT
Fig. 16. Wiring for Digital Input (Dry Contact).
HONEYWELL MODUTROL MOTOR WITH
4-20 mA MODULATING INPUT
– +
T1 T2
POWER
1
B
R
W
MODULATING OUTPUT B
TERMINAL (MOD 1)
R
W
USE SEPARATE TRANSFORMER FOR T775R WHEN USING 24 VAC.
1
Fig. 17. Wiring for Mod Motor or Direct Coupled
Actuator with 4 to 20 mA Control Input
8
–
+
–
+
M27228A
M24482
–
+
–
+
M24481A