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Aircraft Hangar Door Secrets


Aircraft Hangar Information

Hangar Doors, An Open And Shut Case

For safe operation of aircraft hangar doors, the movement of individual sliding door panels must be enabled by conditions external to the door panels. For example, if auxiliary man doors or lift doors are open in adjacent panels, movement of the door panels must be prevented.

Conventional hangar doors, powered electrically using a sliding contact conductor system, require the addition of expensive conductors for each control signal. Often signal reliability is effected by graphite buildup on conductors requiring higher voltage to break over and complete the signal circuit.

SmartRail technology eliminates the need for additional conductors for each control signal. The control system networks all door panels together. Controllers for each door panel form a peer-to-peer network where communication is accomplished over the 480VAC hangar power line, using a FOUR-BAR conductor system. As the positional status of an individual panel changes, messages are sent to all other controllers which, in turn, take appropriate action. Movement of each door panel is interlocked with the status of all other door panels.

The system may be installed on new hangar doors or it may be retrofitted to existing doors. Because the existing power supply cabling is used, no additional cabling is needed. Simply mounting the controller unit to the door panel completes the installation.

It is required that all door panels are on the same 480VAC line with NO power transformers electrically located between door panels. Each door unit must have a continuous power supply. In addition to control of movement, security and alarm information may be passed between door panels, and also to a remote control station.

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