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166
Actuators with Butterfly Valves
VFF2, VFF3, and VFF6
Typical Non-Spring Return Floating Control Actuator wiring Typical Spring Return Floating/Modulating control wiring
Typical Non-Spring Return 120 Vac Floating control wiring
432
FLOATING ACTUATOR
24 VAC
1
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
CONNECTION REQUIRED FOR SPST CONTROL.
2
CONTROLLER
2
Direct
Reverse
Service/Off
M18945A
ACTUATOR
0/2 TO 10 VDC
PROPORTIONING
CONTROLLER
24 VAC
1
1
2
3
2
LINE VOLTAGE POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
24 VDC SUPPLY ACCEPTABLE.
SET SWITCH TO MODULATING.
V
OR +
OR N/A
FEEDBACK
–
+
FEEDBACK
5
4
3
1
2
M19574B
2-10 VDC
10-2 VDC
0-10 VDC
10-0 VDC
Fltg, fwd
Fltg, rev
3
4
ENSURE PROPER GROUNDING OF ACTUATOR CASE.
4
ACTUATOR SHOWN IN CLOSED POSITION
MANUAL OVERRIDE NOT ENGAGED
HEATER OPTIONAL
TRAVEL, MANUAL OVERRIDE, AND TORQUE SWITCHES ARE SPDT (FORM C).
DO NOT WIRE ACTUATORS IN PARALLEL.
DO NOT INSTANTANEOUSLY SWITCH DIRECTION OF THE MOTOR WHILE THE ACTUATOR IS MOVING; ALLOW 0.5 TO 1 SECOND BETWEEN COMMAND CHANGES.
LIMIT SWITCH:
125/250 VAC, 10 A, 1/2 HP
125/250 VDC, 0.25 A INDUCTIVE
125/250 VDC, 0.5 A RESISTIVE
TERMINAL STRIP:
14 - 22 AWG
MAX TIGHTENING TORQUE 8 IN-LBS
105°C, 300V MIN RATED WIRE
COM
COM
N.C.
N.O.
N.C.
N.O.
CLOSE
AUX CLOSE
RED
CAM
GREEN
CAM
AUX OPEN
OPEN
COM
N.O.
N.C.
N.O.
N.C.
COM
ACTUATOR
FIELD WIRING
CLOSE N.O.
(VOLTAGE FREE)
OPEN N.O.
(VOLTAGE FREE)
N
SINGLE PHASE
POWER SUPPLY
OPEN
CLOSE
L
FOR HEATER
OPTION ONLY
CLOSE
GROUND
OPEN
BLUE
RED
YELLOW OR
BLACK
N
O
C
MOTOR
HEATER
(OPTIONAL)
YELLOW
BLUE
RED
BLUE
RED
YELLOW
RED
BLUE
OVERRIDE
SW
2
1
3
4
5
6
7
8
9
A
RED
RED
BLUE
BLUE
COM
N.C.
N.O.
1
2
3
4
5
6
M27038
5
B
C
D
Actuator Wiring Diagrams
Actuators with Butterfly Valves