Group 22 rotary actuators offer excellent performance in a maintenance-free design, plus the added flexibility and features provided by microprocessor-based electronics. Ideally suited for large fan damper applications, these rotary actuators are capable of modulating both static and dynamic loads up to 10850 nm (8,000 lb-ft) of torque, even in the harshest environments. Installation is simple due to a compact, weatherproof design which houses all the components, including the advanced control module.
|Operating Conditions||–40° to 85° C. (–40° to 185° F.) 0 to 99% relative humidity|
|Demand Input Signal Range||4–20 mA, 1–5 V dc|
|Minimum Step||0.1° typical|
|Linearity||±1% of span, max. independent error|
|Hysteresis||0.25% of span at any point|
|Demand Input Signal Characterization||Linear: Drive output shaft moves proportionally to the input signal.
Square: Drive output shaft moves proportionally to the square of the input signal.
|Position Feedback Signal||Demand input and position Feedback signals are isolated from ground and the ac power line. Signal buffering provides 24 Vdc isolation between the Demand and Feedback signals.|
|Overtorque Protection||If the output torque of the drive exceeds 115% of the drive rating, the motor will shut off (feature can be enabled/disabled).|
|Action on Loss of Input Signal (Power On)||Stays in place or runs to any preset position (configurable).|
|Stall Protection||If the motor tries to run in one direction for more than 300 seconds (configurable from 30 to 300 seconds), the motor will shut off.|
|Over-travel Protection Switches||Two SPDT, one for CW and one for CCW limit of output shaft travel. Standard switch setting allows for 100° of travel.|
|Non-dedicated Switches (Field Adjustable)||Two SPDT, rated for 1 A, 250 Vac|
|Handswitch||Permits local electrical operation, independent of Demand input signal.|
|Handwheel (and Handcrank on the model 22-809)||Provides manual operation without electrical power.|
|Enclosure||Precision-machined aluminum alloy castings, painted with corrosion-resistant polyurethane paint, provide a rugged, dust-tight, weatherproof enclosure.|
|Mounting Orientation||Upright, as depicted in outline dimension drawings|
|Customer Wiring||Terminals accommodate up to 12 AWG (3.31 mm2)|
|Motor||Does not coast or overshoot and will not overheat, even under continuous modulation|
|Gear Train||High efficiency, precision-cut, heat-treated alloy steel and ductile iron spur gears enclosed in and permanently lubricated by a grease-filled housing are designed for long life and minimal wear.|
|Mechanical Stops||Prevent over-travel during automatic ormanual operation|