Elevator emergency automatic rescue device

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Elevator emergency automatic rescue device (also known as ARD for automatic rescue device) is a special device installed in an elevator which is only used during an event of a power failure or blackout in a building. An elevator emergency landing device is useful for preventing passengers from becoming trapped inside an elevator during a power failure. All newly-installed elevators must have elevator emergency automatic rescue device implemented before an elevator examination can pass. However, some countries may not require this device.

How it works

Please refer to Emergency power operation (EPR).

Upon power failure, an elevator equipped with this device automatically moves and stops at the nearest floor using a rechargeable battery (or uninterruptible power supply also known as a UPS), and the doors will then open to ensure any onboard passengers' safety.

Voice messages when automatic rescue device is operating

• "自動拯救裝置運行中，請耐心等候升降機前往靠近的樓層 (Cantonese), 自動拯救裝置運行中，請耐心等候升降機前往靠近的樓層 (Putunghua), Automatic rescue device is operating, please be patient while the lift move to near landing floor (English)" - Applied for some of the Toshiba elevators in Hong Kong or Macau.

ARD devices by manufacturer

• Emergenzamatic - Indolift
• Mitsubishi Emergency Landing Device - Mitsubishi
• Otis Aut-O-Safe Emergency Return Unit - Otis (hydraulics only)
• Fujitec LANDIC
• Kone EBD (emergency battery drive) - Kone

Gallery

Emergenzamatic notice sign in an Indolift elevator.
The text means "This lift is equipped with Emergenzamatic, a safety device in case of power failure."

An elevator automatic rescue device manufactured by Foshan Shunde Dingli Electric Co., Ltd.

Elevator emergency landing devices used in Hyundai elevators.

Notes and references

Elevator

Drive systems: Traction • Winding Drum • Hydraulic Types of elevators: Double Deck • Dumbwaiter • Fireman's • Freight • Incline • Passenger • Residential • Wheelchair lift Concept: Capacity • Destination dispatch • Hall call prediction • Elevator algorithm • Elevator control system • Elevator machine room • Elevator maintenance • Elevator monitoring system • Elevator modernization • ACOP & UCMP • Machine room less elevator • Major alterations • Rated speed Elevator systems, controllers and equipments: Elevator emergency automatic rescue device • Elevator fixtures • Elevator keys • Elevator special modes • Elevator doors • Door cam • Door interlocks (Interlock wiring communication system) • Door restrictor • Elevator Inspection Certificate • Emergency stop button • Floor designators • Gate switch • Old Deadman controls • Overspeed governor • Motor-generator set & Silicon-controlled rectifier (for DC-powered elevators) • Insulated-gate bipolar transistor (for AC-VVVF-powered elevators) • Selector • Tape head • Regenerative converter (for AC-VVVF-powered elevators) See also: List of elevator fixtures guide • List of elevator and escalator companies • Elevator door sill guide (Non-proprietary elevator component door sill guide) • Floor numbering (Unlucky floor numbers) • Elevator incidents and accidents

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