SMC24A-MP Damper Rotary Actuator, 20 Nm, AC/DC 24 V, 35 s - Belimo

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The Belimo SMC24A-MP is a type of Actuator used to control dampers in HVAC systems and applications.

This kind of Actuator rotates the damper in order to control it.

The force applied by the Torque of the SMC24A-MP is 20 Nm.

This Rotary Actuator needs to be supported by a power supply of 24Vac/Vdc.

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Manufactured by Belimo, The SMC24A-MP is a damper actuator used to manage and adjust air dampers in ventilation and air-conditioning units.

This type of actuator produces a rotational motion.

The Belimo SMC24A-MP has a modulating control type.

The Torque force is 20 Nm.

Mode of operation: Conventional operation: The actuator is connected with a standard modulating signal of DC 0...10V and drives to the position defined by the positioning signal. The measuring voltage U serves for the electrical display of the actuator position 0...100% and as slave control signal for other actuators. Operation on the MP-Bus: The actuator receives its digital positioning signal from the higher level controller via the MP-Bus and drives to the position defined. Connection U serves as communication interface and does not supply an analogue measuring voltage.

Converter for sensors: Connection option for a sensor (passive or active sensor or switching contact). The MP actuator serves as an analogue/digital converter for the transmission of the sensor signal via MP-Bus to the higher level system.

Parameterisable actuators: The factory settings cover the most common applications. Single parameters can be modified with the Belimo Service Tools MFT-P or ZTH EU.

Simple direct mounting: 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: Manual override with push-button possible (the gear is disengaged for as long as the button is pressed or remains locked).

High functional reliability: The actuator is overload protected, requires no limit switches and automatically stops when the end stop is reached.

Adjustable angle of rotation: Adjustable angle of rotation with mechanical end stops.

Home position: The first time the supply voltage is switched on, i.e. at the time of commissioning, the actuator carries out a synchronisation. The synchronisation is in the home position (0%). The actuator then moves into the position defined by the positioning signal.

Adaption and synchronisation: An adaption can be triggered manually by pressing the “Adaption” button or with the PC-Tool. Both mechanical end stops are detected during the adaption (entire setting range). Automatic synchronisation after pressing the gearbox disengagement button is configured. The synchronisation is in the home position (0%). The actuator then moves into the position defined by the positioning signal. A range of settings can be adapted using the PC-Tool (see MFT-P documentation)

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 4 W
• Power consumption in rest position 1.5 W
• Power consumption for wire sizing 7 VA
• Connection supply / control Cable 1 m, 4 x 0.75 mm²
• Parallel operation Yes (note the performance data)

Functional data:

• Torque motor Min. 20 Nm
• Torque variable 25%, 50%, 75% reduced
• Positioning signal Y DC 0...10 V
• Positioning signal Y note Input impedance 100 kΩ
• Control signal Y variable Open-close, 3-point (AC only) and Modulating (DC 0...32 V)
• Operating range Y DC 2...10 V
• Operating range Y variable Start point DC 0.5...30 V and End point DC 2.5...32 V
• Position feedback U DC 2...10 V
• Position feedback U note Max. 0.5 mA
• Position feedback U variable Start point DC 0.5...8 V and End point DC 2.5...10 V
• Position accuracy ±5%
• Direction of motion motor Selectable with switch 0 / 1
• Direction of motion note Y = 0 V: At switch position 0 (ccw rotation) / 1(cw rotation)
• Direction of motion variable Electronically reversible
• Manual override Gear disengagement 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 35 s / 90°
• Motor running time variable 35...150 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) = 100% MIN (minimum position) = 0% and ZS (intermediate position, AC only) = 50%
• Override control variable MAX = (MIN + 32%)...100%, MIN = 0%...(MAX – 32%) and ZS = MIN...MAX
• Sound power level motor 55 dB(A)
• Spindle driver Universal spindle clamp reversible 10...20 mm
• Position indication Mechanically, pluggable

Safety:

• Protection class IEC/EN III Safety extra-low voltage
• Protection class UL UL Class 2 Supply
• Degree of protection IEC/EN IP54
• Degree of protection NEMA/UL NEMA 2, UL Enclosure Type 2
• EMC CE according to 2004/108/EC
• Certification IEC/EN IEC/EN 60730-1 and IEC/EN 60730-2-14
• Certification UL cULus according to UL 60730-1A, UL 60730-2-14 and CAN/CSA E60730-1:02
• Mode of operation Type 1
• Rated impulse voltage supply / control 0.8 kV
• Control pollution degree 3
• Ambient temperature -30...50°C
• Non-operating temperature -40...80°C
• Ambient humidity 95% r.h., non-condensing
• Maintenance Maintenance-free

Weight: 1.1 kg