Belimo LMB24-MFT

Damper Actuator, 45 in-lb [5 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, MFT/programmable

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

The actuator is mounted directly to a damper shaft from ¼” up to ⅝” in diameter by means of its universal clamp. Shafts up to ¾” diameter can be accommodated by an accessory clamp.

The default parameters for 2 to 10 VDC applications of the …MFT actuator are assigned during manufacturing. If necessary, custom versions of the actuators can be ordered. The parameters can be changed by two means: pre-set and custom configurations from Belimo or on-site configurations using the Belimo PC-Tool software.

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 LMB(X) series provides 95 degrees 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 LMB(X)24-MFT…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.

Attributes