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Technical data sheet

LM24A-MOD

www.belimo.com

LM24A-MOD • en-gb • 2022-07-15 • Subject to change

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Communicative damper actuator for 
adjusting dampers in technical building 
installations

• Air damper size up to approx. 1 m²
• Torque motor 5 Nm
• Nominal voltage AC/DC 24 V
• Control modulating, communicative, hybrid
• Conversion of sensor signals
• Communication via BACnet MS/TP, Modbus 

RTU, Belimo-MP-Bus or conventional control

Technical data

Electrical data Nominal voltage

AC/DC 24 V

Nominal voltage frequency

50/60 Hz

Nominal voltage range

AC 19.2...28.8 V / DC 21.6...28.8 V

Power consumption in operation

2.5 W

Power consumption in rest position

1.3 W

Power consumption for wire sizing

5 VA

Connection supply / control

Cable 1 m, 6 x 0.75 mm²

Data bus communication Communicative control

BACnet MS/TP
Modbus RTU (default setting)
MP-Bus

Number of nodes

BACnet / Modbus see interface description
MP-Bus max. 8

Functional data Torque motor

5 Nm

Torque variable

25%, 50%, 75% reduced

Operating range Y

2...10 V

Operating range Y variable

0.5...10 V

Position feedback U

2...10 V

Position feedback U note

Max. 1 mA

Position feedback U variable

Start point 0.5...8 V
End point 2...10 V

Position accuracy

±5%

Direction of motion motor

selectable with switch 0/1

Direction of motion note

Y = 0%: At switch position 0 (ccw rotation) / 1 
(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

150 s / 90°

Running time motor variable

35...150 s

Adaptation setting range

manual

Adaptation setting range variable

No action
Adaptation when switched on
Adaptation after pushing the manual override 
button

Override control, controllable via bus 
communication

MAX (maximum position) = 100%
MIN (minimum position) = 0%
ZS (intermediate position) = 50%

Summary of Contents for LM24A-MOD

Page 1: ...es BACnet Modbus see interface description MP Bus max 8 Functional data Torque motor 5 Nm Torque variable 25 50 75 reduced Operating range Y 2 10 V Operating range Y variable 0 5 10 V Position feedbac...

Page 2: ...lication especially 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...

Page 3: ...al override with push button possible the gear train is disengaged for as long as the button is pressed or remains locked Adjustable angle of rotation with mechanical end stops The actuator is overloa...

Page 4: ...tion limiter and position indication Multipack 20 pcs ZFRL12 LMA Position indicator Multipack 20 pcs Z PI Tools Description Type Service Tool with ZIP USB function for parametrisable and communicative...

Page 5: ...sensor e g 0 10 V 0 50 C Possible voltage range 0 32 V resolution 30 mV Connection with switching contact e g p monitor Requirements for switching contact The switching contact must be able to accurat...

Page 6: ...ory setting Communication Manual override button Press button Gear train disengages motor stops manual override possible Release button Gear train engages synchronisation starts followed by standard m...

Page 7: ...extended parametrisation the PC tool can be connected Dimensions Spindle length Min 37 Clamping range Further documentation Tool connections BACnet Interface description Modbus Interface description O...

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