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1
Technical Data
AFX24LON
Power supply
24 VAC, +/- 20%, 50/60 Hz
24 VDC, +20% / -10%
Power
running 8.5 W
consumption
holding 3.5 W
Transformer sizing
11 VA (Class 2 power source)
Electrical connection
3 ft, 18 GA appliance cable, 1/2" conduit connector
Overload protection
electronic throughout 0 to 95° rotation
Feedback output U
2 to 10 VDC, 0.5 mA max
Torque
minimum 180 in-lb (20 Nm)
Direction of
spring reversible with cw/ccw mounting
rotation
motor reversible with built-in switch
Mechanical
angle of rotation
95° (adjustable with mechanical end stop, 35° to 95°)
Running time
spring <20 sec @ -4°F to 122°F [-20° C to 50° C];
<60 sec @ -22°F [-30° C]
motor 150 seconds (default), variable (70 to 220 seconds)
Angle of Rotation
adaptation
off (default)
Override control
via nviManOvrd
min position = 0%
mid. position = 50%
max. position = 100%
Position indication
visual indicator, 0° to 95°
(0° is spring return position)
Manual override
5 mm hex crank (
³⁄₁₆
" Allen), supplied
Humidity
max. 95% RH, non-condensing
Ambient temperature
-22 to 122° F (-30 to 50° C)
Storage temperature
-40 to 176° F (-40 to 80° C)
Housing
NEMA 2, IP54, Enclosure Type 2
Housing material
zinc coated metal and plastic casing
Noise level
≤
40dB(A) motor @ 150 seconds, run time dependent
≤
62dB(A) spring return
Agency listings
†
cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-
1:02, CE acc. to 2004/108/EC & 2006/95/EC
Quality standard
ISO 9001
Servicing
maintenance free
Weight
4.3 lbs. (1.92 kg)
† Rated Impulse Voltage 800V, Type of action 1.AA (1.AA.B for -S version), Control Pollution Degree 3.
AFX24LON
LonWorks
®
, Proportional, Spring Return, 24 V
• Torque min. 180 in-lb
• Feedback 2 to 10 VDC
Application
Direct coupled actuators for direct link to LonWorks network. Actuators are easily
installed by direct shaft mounting on air dampers in ventilation and air conditioning
systems. Actuator can be controlled by any compatible LON system. For proportional
modulation of dampers and control valves in HVAC systems. The AFX24LON provides
mechanical spring return operation for reliable fail-safe application.
Operation
The AFX24LON actuator provides 95° of rotation and is provided with a graduated
position indicator showing 0° to 95°. The actuator will synchronize the 0° mechanical
stop or the physical damper or valve mechanical stop and use this point for its zero
position during normal control operations. A unique manual override allows the setting
of any actuator position within its 95° of rotation with no power applied. This
mechanism can be released physically by the use of a crank supplied with the
actuator. When power is applied the manual override is released and the actuator
drives toward the fail-safe position.
The actuator uses a brushless DC motor which is controlled by an Application Specific
Integrated Circuit (ASIC) and a microprocessor. The microprocessor provides the
intelligence to the ASIC to provide a constant rotation rate and to know the actuator’s
exact position. The ASIC monitors and controls the brushless DC motor’s rotation and
provides a Digital Rotation Sensing (DRS) function to prevent damage to the actuator
in a stall condition. The position feedback signal is generated without the need for
mechanical feedback potentiometers using DRS. The actuator may be stalled
anywhere in its normal rotation without the need of mechanical end switches.
The AFX24LON is mounted directly to control shafts up to 1.05" diameter by means of
its universal clamp and anti-rotation bracket. A crank arm and several mounting
brackets are available for damper applications where the actuator cannot be direct
coupled to the damper shaft. The spring return system provides minimum specified
torque to the application during a power interruption. The AFX24LON actuator is
shipped at +5° (5° from full fail-safe) to provide automatic compression against
damper gaskets for tight shut-off.
LonWorks
®
Certified
according to LonMARK
®
3.3
Processor
Neuron 3120
Transceiver
FTT-10A, compatible with LPT-10
Functional profile
according to LonMARK
®
Damper
actuator object #8110
open loop sensor object #1
LNS plug-in for actuator/sensor can be run with any LNS based integration
tool (min. for LNS 3.x)
Service button and status LED
according to LonMARK
®
guidelines
Conductors, cables
conductor lengths, cable specifications and
topology of the LonWorks
®
network according to
the Echelon
®
directives
LonWorks and LonMARK
© 2007-2009 LonMark International
Dimensions
(Inches [mm])
W
AFX24LONDim
M40024 - 07/11 - Subject to change.
© Belimo
Aircontrols (USA),
Inc.
