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VRN DYNAMIC PRESSURE-REGULATING CONTROL VALVES AND ACTUATORS
1
24 VAC
2
4 TO 20 mA
490 TO 510
PROPORTIONING
OHMS,
CONTROLLER
1/2 W
MINIMUM
–
+
FEEDBACK
1
LINE VOLTAGE POWER SUPPLY.
PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
2
24 VDC SUPPLY ACCEPTABLE.
3
SET SWITCH TO MODULATING.
Fig. 25. MS7505 with 4-20mA Controllers.
1
SPST
1
LINE VOLTAGE POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 26. MS4105 with 120 Vac Two Position SPDT
control.
S3
Fig. 27. Wiring for MS4105, MS7505, and MS8105
models with aux./end switches.
38-00005EFS—04
ACTUATOR
1
V
2
3
OR +
OR N/A
4
FEEDBACK
5
2-10 VDC
10-2 VDC
0-10 VDC
3
10-0 VDC
Fltg, fwd
Fltg, rev
M34977
1
V
2
ACTUATOR
M29122
S2
S1
M35813
24 VAC
1
1
24 VAC
0/2 TO 10 VDC
PROPORTIONING
CONTROLLER
HOT
COM
–
+
1
24 VAC
1
LINE VOLTAGE POWER SUPPLY.
PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
2
24 VDC SUPPLY ACCEPTABLE.
3
SET SWITCH TO MODULATING.
Fig. 28. MS7505 with 0(2)-10 Vdc controller operating
multiple actuators.
CLASS 2
24 VAC
CONTROLLER
HOT
COM
S-BUS
S-BUS
1
LINE VOLTAGE POWER SUPPLY.
PROVIDE DISCONNECT MEANS
AND OVERLOAD
PROTECTION AS REQUIRED.
2
24 VDC SUPPLY ACCEPTABLE.
3
ADDRESS SELECTOR
Fig. 29. MS3103 with Sylk Bus control.
OPERATION AND CHECKOUT
Once both the mechanical and electrical installations are
complete:
1. Cycle the actuator to verify that the direction of rota-
tion suits the control sequence.
2. If the rotation direction is incorrect:
a. For 2-position and Sylk-enabled spring return
actuators: Remove, flip over, and replace actua-
tor on the bracket.
b. For floating control actuators: Reverse two con-
trol signal wires (CW/CCW), or change position
of selector switch.
8
ACTUATOR
2
1
V
2
3
OR +
OR N/A
4
FEEDBACK
5
2-10 VDC
10-2 VDC
0-10 VDC
3
10-0 VDC
Fltg, fwd
Fltg, rev
ACTUATOR
1
V
2
2
3
OR +
OR N/A
4
FEEDBACK
5
2-10 VDC
10-2 VDC
0-10 VDC
3
10-0 VDC
Fltg, fwd
Fltg, rev
M34978
ACTUATOR
RED
BLACK
BROWN
S-BUS
BROWN
S-BUS
ADDRESS 11
ADDRESS 12
ADDRESS 13
ADDRESS 14
ADDRESS 15
TEST
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