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ML7420
WIRING
2
STRIP
F
F
+
+
–
–
T2
T1
O1
O2
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
2
2-10 Vdc FEEDBACK SIGNAL. SEE OUTPUT SIGNAL
FEEDBACK SECTION.
3
0-10 Vdc OR 2-10 Vdc CONTROL SIGNAL. SEE SIGNAL
INPUT (+) SECTION.
Fig. 7. ML7420 wiring using feedback output from
a controller with a common transformer.
ML7420
WIRING
1
2
3
4
STRIP
F
+
–
T2
2
1
3
T1
O1
O2
T775
(WITH 2-10 VDC OUTPUT)
L1
(HOT)
L2
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 8. ML7420 wiring using a 2 to 10 Vdc
control signal and separate transformers.
ML7420
WIRING
1
2
3
4
STRIP
F
+
–
T2
2
1
3
T1
O1
O2
T775
(WITH 2-10 VDC OUTPUT)
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 9. ML7420 wiring using a 2 to 10 Vdc
control signal and a common transformer.
ML6420, ML7420 NON-SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS
INPUT
(FEEDBACK)
OUTPUT
3
1
L1
(HOT)
L2
M17422
SENSOR
5
6
1
L1
(HOT)
L2
DUAL
TRANSFORMERS
1
M17423
SENSOR
5
6
1
L1
(HOT)
L2
SINGLE
TRANSFORMER
40 VA 24 VAC
M17424
ML7420
WIRING
1
STRIP
F
+
–
T2
3
T1
O1
O2
T775
(WITH 4-20 MA OUTPUT)
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 10. ML7420 wiring using a 4 to 20 mA
control signal and separate transformers.
ML7420
WIRING
1
STRIP
F
+
–
T2
3
T1
O1
O2
T775
(WITH 4-20 MA OUTPUT)
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 11. ML7420 wiring using a 4 to 20 mA
control signal and a common transformer.
W3
Fig. 12. Location of W1, W2, and W3 selector plugs.
5
SENSOR
2
4
6
3
5
DUAL
TRANSFORMERS
1
2
500 OHM
RESISTOR
L1
(HOT)
1
L2
SENSOR
2
4
6
3
5
SINGLE
TRANSFORMER
1
2
40 VA 24 VAC
500 OHM
RESISTOR
W1
W2
50%
100%
0%
1
L1
(HOT)
L2
M17425
1
L1
(HOT)
L2
M17426
M32767
63-2533—03
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