Model DH is an industrial-duty hoist operator with an internal door lock sensor. It features a removable hinged electrical box cover, a continuous-duty high-starting torque motor, a universal-mount frame design, industrial ball bearings on the output shaft and an emergency chain hoist with electric interlock.

Logic 3.0 Technology (L3)

Added Value

• Built-in 3-channel, 315MHz radio receiver accepts up to 23 Security+® or unlimited DIP switch remotes. 3-button remotes can be programmed for open/close/stop operation.
• Maintenance Alert System™ establishes a routine maintenance schedule based on the number of cycles or calendar date. Includes self-diagnostic system that allows you to troubleshoot up to eight different error codes.
• Timer-to-Close allows programming in 5-sec or 1-min increments. Commercial or industrial photo-eyes required.
• Thermal motor overload can be easily reset from the 3-button floor level control station

Reliability & Programming Simplicity

• Switchless motor eliminates stuck start switch and motor malfunctions on single-phase operators
• All high-voltage connections have been removed from the board for safety and ease of service
• Diagnostic LEDs speed installation and troubleshooting
• Motor direction jumper lets you change motor direction by simply moving a jumper

Mechanical Reversing Contactor Circuit (M):   (115V, 208/230V, 460V, 575V, 24V NEC Class 2 Circuit with 40VA transformer) Industrial linear contactor provides significantly longer control runs than conventional contactors.

Standard Features
Motor:   Continuous-duty high-starting torque motor with instant reverse and overload protection.  Available in 1/3 and 1/2; single- or three-phase. Removable without affecting limit switch settings.

Door Lock Sensor:   Adjustable door lock sensor can detect if the door lock is engaged and will stop the operator, eliminating jamming and damage to the door or operator.

Drive Reduction:   First-stage heavy-duty 5L V-belt; second and third stages #48 chain; #50 drive chain.

Emergency Disconnect:   Easy emergency manual operation using an electrically interlocked floor level disconnect and hoist mechanism.

Wiring Type:   D1, C2 and B2 wiring types are all available. D1 wiring is standard and is pre-wired to accept a photoelectric control, sensing edge, radio controls and most types of access control devices. Failsafe wiring can be selected with the addition of a CPS-L, CPS-LN4 or failsafe edge and CPS3 card.

External Radio Control Terminal:   Quick, convenient connections for retrofitting or adding radio controls on logic or mechanical operators.

Bearings:   Industrial ball bearings on a 1" output shaft; heavy-duty oil-filled iron bearings on reduction shafts.

Friction Clutch:   Adjustable, helps protect against major damage to door and operator should the door meet an obstruction.

Construction:   NEMA 1 type electrical box, heavy-duty 11-gauge steel frame with durable powdercoat finish, all reduction sprockets drilled and pinned to shafts.

Push Button Station: 2-button station for open/close functions is standard with D or D1 wiring.   3-button station is standard with B2 or C2 wiring.

Positive Locking Mechanical Brake System:   Self-locking mechanical reduction system that functions as a holding brake.

Control Accessories
CPS® Commercial Protector System®:   (recommended) A “non-contact” photo safety sensor designed to sense an obstruction and signal the door operator to reverse to open.

Sensing Edge:   (recommended) Designed to sense an obstruction and signal door operator to stop or reverse as desired. An electric or pneumatic sensing device can be added to bottom edge of door.

2-Position Keylock (flush mount):   Ideal for use with the DJ operator. Provides open/close operation with spring to center (Model 02-109).

Available Plug-in Options for Logic 3.0 (L3)
Auxiliary Contact:    Used to operate security, warning, heating or other 5V to 240V devices.  Features both normally open and closed contacts that actuate in conjunction with limit switches.

Warning Signal:   Red/green light module provides safety warning prior to close (when using timer-to-close feature).  Also supports audio warning devices and includes down mid-stop feature.

CPS3 Option:   Enables the addition of a second set of photo-eyes or 2- or 4-wire, self-monitoring edge.