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Control Motors
Siemens control motors are highly versatile modulating actuators used for the positioning of flow control valves, butterfly valves, dampers, or any application requiring rotary motion.
SQM5
The SQM5 is available in a wide range of torque ratings from 90 to 400 in-lbs. and running times of 8 to 50 seconds. A selection of exchangeable circuit boards provide a variety of functions including zero and span adjustment, parallel or master/slave operation, split range control, input signal override and selectable electronic linearization.
Six easily accessible internal switches
Auto/manual switch allows easy adjustments
Externally visible shaft position indicator
Highly modulating accuracy/rotational resolution
Low hysteresis actuator with double-offset drive and potentiometer gearing
SQM4
The SQM4 Synchro is an economical modulating actuator, the SQM4 Synchro has versions up to 90 in-lbs, with 12 or 25 second drive times for 90 degrees. Some of the benefits of the SQM4 Synchro actuator include:
NEMA 4 out of the box – No need for weather shields
No restrictions on mounting orientation – No more elaborate linkages to keep the shaft horizontal!
The modulating input version accepts 2-10 Vdc, 4-20 mA or 0-135 ohm control signals – one motor
SQN7
SQN7 control motors are designed to drive gas and air dampers for burners with small to medium capacities.
Line Voltage floating or proportional control
Optional feedback potentiometer
Up to 22 in-lb torque
Auxiliary switch