echnical data sheet LM24A- Communicative damper actuator for adjusting dampers in technical building installations Air damper size up to approx. m² Nominal torque 5 Nm Nominal voltage AC/DC 24 V Control modulating, communicative DC ()2... V Variable Position feedback DC 2... V Variable Conversion of sensor signals Communication via Belimo -Bus echnical data Electrical data Nominal voltage AC/DC 24 V Nominal voltage frequency 5/6 Hz Nominal voltage range AC 9.2...28.8 V / DC 2.6...28.8 V Power consumption in operation 2.5 W Power consumption in rest position.3 W Power consumption for wire sizing 5 VA Connection supply / control Cable m, 4 x.75 mm² Parallel operation es (note the performance data) Functional data orque motor Min. 5 Nm orque variable 25%, 5%, 75% reduced Positioning signal DC... V Positioning signal note Input impedance kω Control signal variable Open-close Operating range DC 2... V Operating range variable Start point DC.5...3 V End point DC 2.5...32 V Position feedback DC 2... V Position feedback note Max..5 ma Position feedback variable Start point DC.5...8 V End point DC 2.5... V Position accuracy ±5% Direction of motion motor selectable with switch / Direction of motion note = V: At switch position (ccw rotation) / (cw rotation) Direction of motion variable electronically reversible Manual override with push-button, can be locked Angle of rotation Max. 95 Angle of rotation note can be limited on both sides with adjustable mechanical end stops Running time motor 5 s / 9 Motor running time variable 35...5 s Adaption setting range manual Adaption setting range variable No action Adaption when switched on Adaption after pushing the gear disengagement button Override control MAX (maximum position) = % MIN (minimum position) = % ZS (intermediate position, AC only) = 5% Override control variable MAX = (MIN + 32%)...% MIN = %...(MAX 32%) ZS = MIN...MAX Sound power level motor 35 db(a) Spindle driver niversal spindle clamp 6...2 mm Position indication Mechanically, pluggable Safety Protection class IEC/EN III Safety Extra-Low Voltage (SELV) Protection class L L Class 2 Supply Degree of protection IEC/EN IP54 Degree of protection NEMA/L NEMA 2, L Enclosure ype 2 www.belimo.eu LM24A- en-gb 26-- subject to changes
echnical data Safety EMC CE according to 24/3/E Certification IEC/EN IEC/EN 673- and IEC/EN 673-2-4 Certification L clus according to L 673-A, L 673-2- 4 and CAN/CSA E673-:2 Mode of operation ype Rated impulse voltage supply / control.8 kv Control pollution degree 3 Ambient temperature -3...5 C Non-operating temperature -4...8 C Ambient humidity 95% r.h., non-condensing Maintenance Maintenance-free Weight Weight.56 kg Safety notes! he device must not be used outside the specified field of application, especially not in aircraft or in any other airborne means of transport. Outdoor application: only possible in case that no (sea)water, snow, ice, insolation or aggressive gases interfere directly with the actuator and that is ensured that the ambient conditions remain at any time within the thresholds according to the data sheet. Only authorised specialists may carry out installation. All applicable legal or institutional installation regulations must be complied during installation. he device may only be opened at the manufacturer s site. It does not contain any parts that can be replaced or repaired by the user. Cables must not be removed from the device. o calculate the torque required, the specifications supplied by the damper manufacturers concerning the cross-section, the design, the installation site and the ventilation conditions must be observed. he device contains electrical and electronic components and must not be disposed of as household refuse. All locally valid regulations and requirements must be observed. Product features Mode of operation Converter for sensors Parameterisable actuators Simple direct mounting Manual override Adjustable angle of rotation High functional reliability Conventional operation: he actuator is connected with a standard modulating signal of DC...V and drives to the position defined by the positioning signal. he measuring voltage serves for the electrical display of the actuator position...% and as slave control signal for other actuators. Operation on the -Bus: he actuator receives its digital positioning signal from the higher level controller via the -Bus and drives to the position defined. Connection serves as communication interface and does not supply an analogue measuring voltage. Connection option for a sensor (passive or active sensor or switching contact). he actuator serves as an analogue/digital converter for the transmission of the sensor signal via -Bus to the higher level system. he factory settings cover the most common applications. Single parameters can be modified with the Belimo Service ools MF-P or ZH E. Simple direct mounting on the damper spindle with an universal spindle clamp, supplied with an anti-rotation device to prevent the actuator from rotating. Manual override with push-button possible (the gear is disengaged for as long as the button is pressed or remains locked). Adjustable angle of rotation with mechanical end stops. he actuator is overload protected, requires no limit switches and automatically stops when the end stop is reached. 2 LM24A- en-gb 26-- subject to changes www.belimo.eu
Product features Home position he first time the supply voltage is switched on, i.e. at the time of commissioning, the actuator carries out a synchronisation. he synchronisation is in the home position (%). he actuator then moves into the position defined by the positioning signal. = V ccw = V cw Adaption and synchronisation An adaption can be triggered manually by pressing the Adaption button or with the PC-ool. Both mechanical end stops are detected during the adaption (entire setting range). Automatic synchronisation after pressing the gearbox disengagement button is configured. he synchronisation is in the home position (%). he actuator then moves into the position defined by the positioning signal. A range of settings can be adapted using the PC-ool (see MF-P documentation) Accessories ype Gateways Gateway to Modbus R, AC/DC 24 V K24MOD Gateway for BACnet MS/P, AC/DC 24 V K24BAC Gateway to LonWorks, AC/DC 24 V, LonMark certified K24LON Gateway to KNX, AC/DC 24 V, EIBA certified K24EIB Electrical accessories Auxiliary switch, add-on, x SPD SA Auxiliary switch, add-on, 2 x SPD S2A Feedback potentiometer 4 Ohm, add-on, grey P4A GR Feedback potentiometer 2 Ohm, add-on P2A Feedback potentiometer 5 Ohm, add-on P5A Feedback potentiometer 5 Ohm, add-on, grey P5A GR Feedback potentiometer kohm, add-on PA Feedback potentiometer kohm, add-on, grey PA GR Feedback potentiometer 2.8 kohm, add-on P28A Feedback potentiometer 2.8 kohm, add-on, grey P28A GR Feedback potentiometer 5 kohm, add-on P5A Feedback potentiometer 5 kohm, add-on, grey P5A GR Feedback potentiometer kohm, add-on PA Feedback potentiometer kohm, add-on, grey PA GR Signal converter voltage/current, supply AC/DC 24V Z-IC Digital position indicator for front-panel mounting,...99%, front mass ZAD24 72 x 72 mm Range controller for wall mounting, adjustable electron. Min./max. SBG24 angle of rotation limitation Positioner for wall mounting, range...% SGA24 Positioner in a conduit box, range...% SGE24 Positioner for front-panel mounting, range...% SGF24 Positioner for wall mounting, range...% CRP24-B Connection cable 5 m, A+B: RJ2 6/6, o ZH/ZIP-SB- ZK-GEN Connection cable 5 m, A: RJ 6/4, B: Free wire end, o ZH/ZIP- ZK2-GEN SB- -Bus power supply for actuators, AC 23/24V for local power ZN23-24 supply Connecting board bus suitable for wiring boxes EX-WR-FP..- ZFP2- Mechanical accessories Shaft extension 7 mm, for damper spindles Ø 6...2 mm AV6-2 Spindle clamp for LM..A, clamping range 6...2 mm K-ELA Spindle clamp for LM..A, clamping range 6... mm K-ELA Spindle clamp for LM..A, clamping range 6...3 mm K-ELA3 www.belimo.eu LM24A- en-gb 26-- subject to changes 3 ype ype
Accessories Spindle clamp for LM..A, clamping range 6...6 mm niversal mounting bracket 8 mm Form fit insert 8x8 mm, for LM..A Form fit insert x mm, for LM..A Form fit insert 2x2 mm, for LM..A Form fit insert 8x8 mm, with angle of rotation limiter and position indication for LM..A Form fit insert x mm, with angle of rotation limiter and position indication for LM..A Form fit insert 2x2 mm, with angle of rotation limiter and position indication for LM..A Position indication for LM..A, NM..A, SM..A, GM..A Service ools Service tool for parametrisable and communicative Belimo actuators / VAV controller and HVAC performance devices Belimo PC-ool, software for adjustments and diagnostics Adapter to Service ool ZH ype K-ELA6 Z-ARS8 ZF8-LMA ZF-LMA ZF2-LMA ZFRL8-LMA ZFRL-LMA ZFRL2-LMA Z-PI ype ZH E MF-P MF-C Electrical installation! Notes Connection via safety isolating transformer. Parallel connection of other actuators possible. Observe the performance data. Wiring diagrams AC/DC 24 V, modulating Operation on the -Bus DC ()2 V DC 2 V Sensor Cable colours: = black 2 = red 3 = white 5 = orange Cable colours: = black 2 = red 3 = white 5 = orange Functions Functions when operated on -Bus Connection on the -Bus Network topology + A) A) more actuators and sensors (max.8) here are no restrictions for the network topology (star, ring, tree or mixed forms are permitted). Supply and communication in one and the same 3-wire cable no shielding or twisting necessary no terminating resistors required 4 LM24A- en-gb 26-- subject to changes www.belimo.eu
Functions Connection of active sensors Connection of external switching contact + p + A) A) A) more actuators and sensors (max.8) Supply AC/DC 24 V Output signal DC... V (max. DC...32 V) Resolution 3 mv A) more actuators and sensors (max.8) Switching current 6 ma @ 24 V Start point of the operating range must be parameterised on the actuator as.5 V Connection of passive sensors + A) Ni 28...+98 C 85...6 Ω 2) P 35...+55 C 85...6 Ω 2) NC...+6 C ) 2 Ω...6 kω 2) A) more actuators and sensors (max.8) ) Depending on the type 2) Resolution Ohm Functions with basic values (conventional mode) Override control with AC 24 V with relay contacts Override control with AC 24 V with rotary switch a b c (DC... V) % ZS 5% % (DC... V) e.g. N 47 % ZS 5% a b c e.g. N 47 % Remote control...% with positioner SG.. Minimum limit with positioner SG.. Z 2 3 4 SGA24 SGF24 SGE24 Z 2 3 4 SGA24 SGF24 SGE24 [V] (DC... V) min [%] www.belimo.eu LM24A- en-gb 26-- subject to changes 5
Functions Follow-up control (position-dependent) Position indication DC ()2 V DC 2 V 2 3 4 ) ZAD24 () Adapting the direction of rotation Control with 4...2 ma via external resistor Functional check 5 Ω ( ) (+) 4 2 ma DC 2 V Caution: he operating range must be set to DC 2... V. he 5 Ω resistor converts the 4...2 ma current signal to a voltage signal DC 2... V Procedure. Connect 24V to connections and 2 2. Disconnect connection 3: with direction of rotation : Actuator rotates to the left with direction of rotation : Actuator rotates to the right 3. Short-circuit connections 2 and 3: Actuator runs in opposite direction Functions for actuators with specific parameters (Parametrisation with PC-ool necessary) Override control and limiting with AC 24 V with relay contacts Override control and limiting with AC 24 V with rotary switch a b c d e (DC... V) Close ) MIN ZS MAX Open (DC... V) e.g. N 47 Close ) MIN ZS MAX Open a b c d e e.g. N 47 ) Caution: his function is only guaranteed if the start point of the operating range is defined as min..5 V. Control open-close Control 3-point a b e.g. N 47 a b 6 LM24A- en-gb 26-- subject to changes www.belimo.eu
Operating controls and indicators 4 Adaption Address 5 2 Power 3 Status Direction of rotation switch Switch over: Direction of rotation changes 2 Push-button and LED display green Off: No power supply or malfunction On: In operation Press button: riggers angle of rotation adaptation, followed by standard mode 3 Push-button and LED display yellow Off: Standard mode Flickering: communication active On: Adaptation or synchronising process active Flashing: Request for addressing from master Press button: Confirmation of the addressing 4 Gear disengagement button Press button: Gear disengages, motor stops, manual override possible Release button: Gear engages, synchronisation starts, followed by standard mode 5 Service plug For connecting parameterisation and service tools Check power supply connection 2 Off and 3 On Possible wiring error in power supply Service! Notes Service ools connection he actuator can be parameterised by PC-ool and ZH E via the service socket. he actuator can be parameterised by ZH E via the service socket. For an extended parameterisation the PC tool can be connected. Connection ZH E / PC-ool AC 24 V DC 24 V SB ZH E i esc OK BELIMO PC-ool SB www.belimo.eu LM24A- en-gb 26-- subject to changes 7
Dimensions [mm] Spindle length Dimensional drawings L Min. 37 Clamping range 6...2 6 2-66 47 6 6 22 6 4 Further documentation Overview Cooperation Partners ool connections 8 LM24A- en-gb 26-- subject to changes www.belimo.eu