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ML9185 SPRING RETURN DIRECT COUPLED ROTARY ACTUATOR
MOUNTING
BRACKET
Fig. 6. ML9185 Actuator standard electrical connection.
Fig. 7. ML9185 Actuator can be mounted in any position.
NOTE: NEMA rating applies only with damper shaft in
horizontal position.)
63-2494—1
6 0
3 0
9 0
6 0
3 0
TO JUNCTION
BOX (UP TO
3 FT AWAY)
M7231
6 0
3 0
9 0
6 0
3 0
0
5 0
0
M9384
WIRING
CAUTION
Disconnect power supply before wiring to prevent electrical
shock or equipment damage.
All wiring must comply with local electrical codes, ordinances
and regulations. The ML9185 is designed for use with a
Class 2 power supply. Voltage and frequency of the
transformer used must correspond with the characteristics of
the motor and with those of the power supply. See Fig. 8 for a
typical wiring connection.
The ML9185 has an aluminum die cast housing with two
integral cast bosses on the end of the device, tapped for 1/2 in.
conduit fittings. Some models are shipped with a water seal in
the conduit opening. When conduit is needed, remove the
seal before routing the cable.
ML9185 Models with Factory-mounted
Auxiliary Switches (See Fig. 9)
ML9185C,F models have two nonadjustable line voltage
rated spdt auxiliary switches that are factory set to make
common to normally open at 12° and 82° rotation from the
counterclockwise stop. See Fig. 9.
IMPORTANT
Actuators driving in parallel cannot be synchronized
with each other. In normal operation, when all
actuators are driven to the fully open or fully closed
position, the actuators are again synchronized.
SERIES 90
CONTROLLER
B
R
135 OHM
W
L2
1
24 VAC
L1
(HOT)
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
Fig. 8. ML9185 typical wiring diagram.
COMMON
12°
INTERNAL
AUXILIARY
COMMON
SWITCH
82°
3A 24V AC
SWITCHES SHOWN AT ACTUATOR CLOSED POSITION
Fig. 9. ML9185C,F wiring for auxiliary switches.
8
ML9185
BLUE
B
YELLOW
W
BLACK
24V COMMON (T1)
RED
R (T2)
M4442A
WHT/RED
NO
WHT/BLU
NC
WHT/YEL
BLACK/RED
NO
BLACK/BLU
NC
BLACK/YEL
M7877
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