Group 22 Rotary Actuators
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.
General Specification
| 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 |
| Standards*** | cULus Listed CE Compliant |
