GROUP 11 ROTARY DAMPER DRIVES & ACTUATORS
Reliable Rotary Electric Actuator
Standard Group 11 modulating drives (control option 9) are equipped with Beck’s Digital Control Module (DCM), which controls the position of the drive according to the input signal it receives. A position feedback signal is delivered to the DCM from the position sensing device (Beck’s Contactless Position Sensor (CPS)
Available Torque And Timing Combinations For The Model 11-150 series
TORQUE
(LB-FT)
(LB-FT)
STROKE TIME*
(SECONDS/100°)
(SECONDS/100°)
15
11
20
20
40
20
40
40
60
60
80
24
80
40
80
90
* Stroke times listed are for 60 Hz operation.
DIGITAL CONTROL MODULE (DCM)
ELECTRONIC SIGNAL RECEIVER (ESR)
DIRECT AC
Adjustability for Split Range Operation
4 to 1
2 to 1
N/A
Deadband
0.6% of span (configurable)
0.6% of span
N/A
Minimum Step
0.1% typical
0.15% typical
0.1° function of control system capabilities
Stall Protection (Protects drive and driven elements under stall conditions)
Standard. Integral to electronics. Time to stall is configurable from 300 seconds down to 30 seconds.
Optional. Requires a Stall Protection Module (SPM) to shut off power to the moto
Models approved for use in Hazardous classified locations are available—contact a Beck Sales or Application Engineer for details.
Input Power
120 V ac, single-phase, 240 V ac, single-phase
Action on Loss of Power
Stays in place.
Operating Conditions
-40° to 85° C. (-40° to 185° F.), 0% to 99% relative humidity
Limit Switches
Two SPDT switches (one for each direction of travel) provide over-travel protection.
Isolation
Demand Input and Position Feedback signals are isolated from the ground and the ac power line.
Auxiliary Switches
Up to four 6 A, 120 V ac switches available. Switches are labeled S1 to S4 and are cam-operated and field-adjustable.
Action on Loss of Input Signal (Power On)
Stays in place or, on some drives, is field configurable to move to any preset position.
Handswitch
Permits local electrical operation, independent of controller signal. Standard on all units. An optional auxiliary contact can be used to indicate that the Handswitch is in “AUTO” mode or to sound an alarm if it is taken out of “AUTO”.
