Belimo AFX24LON User manual

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
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])
WAFX24LONDim
M40024 - 07/11 - Subject to change. © Belimo Aircontrols (USA), Inc.

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
2
Wiring Diagrams
V
Possible connection of a
voltmeter for checking
the position feedback U.
567321
MFT LON LON
T
~
+
–
T
~
+
–
V
Schema_LON_01
Connection without Sensor
AFX24LON
LonWorks®, Proportional, Spring Return, 24 V
567321
MFT LON LON
T
~
+
–
T
~
+
–
Sensor scaling:
The sensors can be scaled with the sensor plug-in (sensor table).
Sensor Temperature range Resistance range Resolution
Ni1000 –28 ... +98°C 850 ... 1600 Ω1 Ω
PT1000 –35 ... +155°C 850 ... 1600 Ω1 Ω
NTC –10 ... +160°C
(depending on type)
200 ... 60 kΩ1 Ω
Schema_LON_02
Connection with Passive Sensor, e.g. Pt1000, Ni1000, NTC
567321
MFT LON LON
T
~
+
–
T
~
+
–
Requirements for
switching contact:
The switching contact must be
able to accurately switch a cur-
rent of 16 mA @ 24 V.
Schema_LON_03
Connection with Switching Contact, e.g. Δp-monitor
567321
MFT LON LON
T
~
+
–
T
~
+
–
Possible input voltage range:
0 ... 32 V (resolution 30 mV)
Sensor scaling:
The sensors can be scaled with the
sensor plug-in (sensor table)
Schema_LON_04
Connection with Active Sensor, e.g. 0...10 V @ 0...50° C
Accessories
AV 8-25 Shaft extension
IND-AFB Damper position indicator
KH-AFB Crank arm
K7-2 Universal clamp for up to 1.05” dia jackshafts
TF-CC US Conduit fitting
Tool-06 8mm and 10 mm wrench
ZG-100 Universal mounting bracket
ZG-101 Universal mounting bracket
ZG-102 Multiple actuator mounting bracket
ZG-118 Mounting bracket for Barber Colman®MA 3../4.., Honeywell®
Mod III or IV or Johnson®Series 100 replacement or new crank
arm type installations
ZG-AFB Crank arm adaptor kit
ZG-AFB118 Crank arm adaptor kit
ZS-100 Weather shield (metal)
ZS-150 Weather shield (polycarbonate)
ZS-260 Explosion-proof housing
ZS-300 NEMA 4X housing
NOTE: When using AFX24LON actuator, only use accessories listed on this page.
Typical Specification
Spring return control damper actuators shall be direct coupled type which require no
crank arm and linkage and be capable of direct mounting to a jackshaft up to a 1.05”
diameter. The actuator must provide proportional damper control in response to a
LonWorks controller. The actuators must be designed so that they may be used for
either clockwise or counterclockwise fail-safe operation. Actuators shall use a
brushless DC motor controlled by a microprocessor and be protected from overload at
all angles of rotation. Run time shall be constant, and independent of torque. A 2 to 10
VDC feedback signal shall be provided for position feedback. Actuators shall be cULus
Approved and have a 5 year warranty, and be manufactured under ISO 9001
International Quality Control Standards. Actuators shall be as manufactured by Belimo.
M40024 - 07/11 - Subject to change. © Belimo Aircontrols (USA), Inc.

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
3
AFX24LON
LonWorks®, Proportional, Spring Return, 24 V
Node object #0
The node object contains the object status and object request functions.
nviRequest SNVT_obj_request
Input variable for requesting the status of a particular object in the node.
nvoStatus SNVT_obj_status
Output variable that outputs the current status of a particular object in the node.
nvoFileDirectory SNVT_address
Output variable that shows information in the address range of the Neuron chip.
Damper actuator object #8110
The actuator object is used to map the functions of the MP actuators to the
LONWORKS® network.
nviRelStpt SNVT_lev_percent
The nominal position is assigned to the actuator via this input variable. This variable is
normally linked to the output variable of an HVAC controller.
nviActuateState SNVT_switch
A preset position is assigned to the actuator via this input variable. Note on priority:
The last variable that was active, either nviActuatorState or nviRelStpt, has priority.
nviManOvrd SNVT_hvac_overid
These input variables can be used to manually override the actuator into a particular
position.
nvoActualValue SNVT_lev_percent
This output variable shows the current actual position of the actuator and can be used
for control circuit feedback or for displaying positions.
nvoAbsAngle SNVT_angle_deg
This output variable shows the current angle of rotation of the actuator
or the valve and can be used to display the position or for service purposes.
nvoAbsAirFlow SNVT_flow
This output variable is inactive with the SR24ALON-5 rotary actuator and shows a
constant value of 65535 (this variable is only active in conjunction with LON-capable
VAV controllers).
Open loop sensor object #1
A sensor can be connected to the rotary actuator. A passive resistance sensor (e.g.
Ni1000), an active sensor (output 0 ... 32 V) or a switch (on/off) can be connected. The
open loop sensor object transfers the measured sensor values to the LONWORKS®
network.
nvoSensorValue SNVT_xxx
This output variable shows the current sensor value. Depending on the connected
sensor, the output variable can be configured via the sensor plug-in and specifically
adapted to the system.
The SNVT_... can be configured as:
SNVT_temp_p SNVT_lev_percent SNVT_lux
SNVT_temp SNVT_abs_humid SNVT_press_p
SNVT_switch SNVT_enthalpy SNVT_smo_obscur
SNVT_flow SNVT_ppm SNVT_power
SNVT_flow_p SNVT_rpm SNVT_elec_kwh
Notes
Detailed information on the functional profiles can be found on the website of
LonMARK®(www.lonmark.org).
Functional Profile according to LonMARK®
The LON-capable damper actuator is certified by LonMARK®. The actuator functions
are supplied with the LonWorks®network as standardized network variables
according to LonMARK®. The Node Object #0, the Damper Actuator Object #8110
and the Open Loop SensorObject #1 are implemented in the actuator.
M40024 - 07/11 - Subject to change. © Belimo Aircontrols (USA), Inc.

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
4
AFX24LON
Operating Controls and Indicators
1 Membrane key and green LED display
Off No voltage supply or malfunction
On Operation
Press button Switches on angle of rotation adaption followed
by standard operation
2 Membrane key and yellow LED display
Off The actuator is integrated ready-for-operation in
the LONWORKS® network.
On No application software is loaded in the actuator.
Blinking
(flashing interval 2 seconds)
The actuator is ready-for-operation, but not
integrated in the LONWORKS® network
(unconfigured).
Other flashing codes A fault is present in the actuator.
Press button Service Pin Message will be sent to the
LONWORKS® network.
3 Service plug
For connecting MFT parameterizing and service tools
Operating Controls
The hand crank, interlocking switch and direction of rotation switch are provided
on both sides.
1 2
3
ServiceAdaption
M40024 - 07/11 - Subject to change. © Belimo Aircontrols (USA), Inc.