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800-543-9038 

USA

866-805-7089 

CANADA

203-791-8396 

LATIN AMERICA

303

Torque min. 45 in-lb for control of damper surfaces up to 11 sq ft.

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 controller or automation
system.

For proportional modulation of dampers in HVAC systems. Actuator sizing should be
done in accordance with the damper manufacturer’s specifications.

The actuator is mounted directly to a damper shaft from 1/4” up to 5/8” in diameter
by means of its universal clamp.  Shafts up to 3/4” diameter can be accommodated by
an accessory clamp.

Operation

The actuator is not provided with and does not require any limit switches, but is
electronically protected against overload.  The anti-rotation strap supplied with the
actuator will prevent lateral movement.

The LMX24-LON series provides 95° of rotation and a visual indicator indicates
position of the actuator.  When reaching the damper or actuator end position, the
actuator automatically stops.  The gears can be manually disengaged with a button on
the actuator cover.

The LMX24-LON actuators use a brushless DC motor, which is controlled by an
Application Specific Integrated Circuit (ASIC).  The ASIC monitors and controls the
actuator’s rotation and provides a digital rotation sensing (DRS) function to prevent
damage to the actuator in a stall condition.  Power consumption is reduced in holding
mode.

Add-on auxiliary switches or feedback potentiometers are easily fastened directly onto
the actuator body for signaling and switching functions.

Dimensions

 (Inches [mm])

4.57" [116]

3.47" [88]

2" [50.8]

0.86" [22]

2

.3

4" [5

9

.4

]

1/4” to 3/4” [6 to 20] 

5/16” to 3/4” [8 to 26]

D141

Technical Data

LMX24-LON

Power supply

24 VAC ± 20% 50/60 Hz
24 VDC ± 10%

Power consumption

2.5 W (1.2 W)

Transformer Sizing

5 VA (Class 2 power source)

Electrical connection

18 GA plenum rated cable
1/2” conduit connector
protected NEMA 2 (IP54)
3 ft [1m]

Overload protection

electronic throughout 0 to 95° rotation

Angle of rotation

max. 95°, adjustable with mechanical stop
electronically variable

Torque

45 in-lb [5 Nm]

Direction of rotation

reversible with

switch

Position indication

reflective visual indicator (snap-on)

Manual override

external push button

Running time

150 seconds (default)

Humidity

5 to 95% RH non condensing (EN 60730-1)

Ambient temperature

-22°F to 122°F [-30°C to 50°C]

Storage temperature

-40°F to 176°F [-40°C to 80°C]

Housing

NEMA 2, IP54, UL enclosure type 2

Housing material

UL94-5VA

Agency listings

cULus acc. to UL 60730-1A/-2-14, 
CAN/CSA E60730-1:02,
CE acc. to 2004/108/EEC and 2006/95/EC

Noise level

<35dB(A)

Servicing

maintenance free

Quality standard

ISO 9001

Weight

1.5 lbs  [0.7 kg]

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

LMX24-LON

LonWorks

®

, Non-Spring Return, 24 V

M

40024 - 05/10 - Subject to change.

 © Belimo 

Aircontrols (USA),

 Inc.

Summary of Contents for LonWorks LMX24-LON

Page 1: ...ened directly onto the actuator body for signaling and switching functions Dimensions Inches mm 4 57 116 3 47 88 2 50 8 0 86 22 2 34 59 4 1 4 to 3 4 6 to 20 5 16 to 3 4 8 to 26 D141 Technical Data LMX24 LON Power supply 24 VAC 20 50 60 Hz 24 VDC 10 Power consumption 2 5 W 1 2 W Transformer Sizing 5 VA Class 2 power source Electrical connection 18 GA plenum rated cable 1 2 conduit connector protect...

Page 2: ...ersing switch and manual override on the cover Run time shall be constant and independent of torque Actuators shall be cULus listed have a 5 year warranty and be manufactured under ISO 9001 International Quality Control Standards Actuators shall be as manufactured by Belimo Wiring Diagrams V Possible connection of a voltmeter for checking the position feedback U 5 6 7 3 2 1 MFT LON LON T T V Schem...

Page 3: ...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 actua...

Page 4: ...ORKS network Yellow on No application software is loaded in the SR24ALON 5 Yellow flashing flashing interval 2 seconds The SR24ALON 5 is ready for operation but not integrated in the LONWORKS network unconfigured Other flashing codes A fault is present in the SR24ALON 5 Press button Service Pin Message is sent to the LONWORKS network 4 Gear disengagement switch Press button Gear disengaged motor s...

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