Honeywell ML7421A Product Data page 5

ML7421
WIRING
STRIP
1 2 3
T1
T2
+
O1
1
3 2
O2
R1
T775 (WITH 2 TO 10 VDC OUTPUT)
W1
B1
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
T
2 TERMINALS: T, Y, AND G DO NOT APPEAR ON
Y
THE WIRING BLOCK, OR EVEN ON ALL MODELS
BECAUSE THEY ARE FOR THE OPTIONAL 220 OHM
G
FEEDBACK POTENTIOMETER.
2
Fig. 6. ML7421 wiring diagram using a 2 to 10 Vdc output
control (e.g., T775) with two transformers.
ML7421
WIRING
2
1 3
STRIP
T1
T2
+
O1
1
3 2
O2
R1
T775 (WITH 2 TO 10 VDC OUTPUT)
W1
B1
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
T
2 TERMINALS: T, Y, AND G DO NOT APPEAR ON
THE WIRING BLOCK, OR EVEN ON ALL MODELS
Y
BECAUSE THEY ARE FOR THE OPTIONAL 220 OHM
G
FEEDBACK POTENTIOMETER.
2
Fig. 7. ML7421 wiring diagram using a 2 to 10 Vdc output
control (e.g., T775) with one transformer.
L1
(HOT)
L2
1
SENSOR
4 5 6
L1
(HOT)
L2
1
DUAL
TRANSFORMERS
M6747
SENSOR
4 6
5
L1
(HOT)
L2
1
SINGLE
TRANSFORMER
40 VA, 24 VAC
M6748
ML7421A,B ELECTRIC LINEAR VALVE ACTUATOR
ML7421
WIRING
STRIP
1 2
T1
T2
+
2
3
O1
O2
R1
T775 (WITH 4 TO 20 MA OUTPUT)
W1
B1
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
T
2 TERMINALS: T, Y, AND G DO NOT APPEAR ON
Y
THE WIRING BLOCK, OR EVEN ON ALL MODELS
BECAUSE THEY ARE FOR THE OPTIONAL 220 OHM
G
FEEDBACK POTENTIOMETER.
2
Fig. 8. ML7421 wiring diagram using a 4 to 20 mA output
control (e.g., T775) with two transformers.
ML7421
WIRING
1 2
STRIP
T1
T2
+
3 2
O1
O2
R1
T775 (WITH 4 TO 20 MA OUTPUT)
W1
B1
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
T
2 TERMINALS: T, Y, AND G DO NOT APPEAR ON
THE WIRING BLOCK, OR EVEN ON ALL MODELS
Y
BECAUSE THEY ARE FOR THE OPTIONAL 220 OHM
G
FEEDBACK POTENTIOMETER.
2
Fig. 9. ML7421 wiring diagram using a 4 to 20 mA output
control (e.g., T775) with one transformer.
5
L1
(HOT)
L2
SENSOR
3 4 5 6
L1
(HOT)
L2
1
DUAL
TRANSFORMERS
500 OHM
RESISTOR
M6749
SENSOR
3 4 5 6
L1
(HOT)
L2
SINGLE
1
TRANSFORMER
40 VA, 24 VAC
500 OHM
RESISTOR
M6750
63-2517—1
1
1
1