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ARD Elevator power-off leveling device with elevator electrical
Product performance
· The product applie to the power of the main engine 3.7KW-90KW.
· This product has the functions of under voltage,over current and short circuit protection.
· Simple wiring, stitable for machine room and machine roomless.
· After the rescue is completed, the level position is accurate.
· Automatic speech soothing.
· The startup time can be set up flexibly.
| Electricity input Output voltage |
three-phase supply AC380V/220V |
| Battery 4 or 6,voltage | 12V10A-12V12A |
| Output frequency | 50Hz-60Hz |
| Output current | 10A |
| Weight | 28kg |
| Volume | 510*250*712MM |
In the intricate ecosystem of a modern building, the elevator system is its vertical lifeline, a critical component for mobility, accessibility, and operational efficiency. Its reliability is paramount, not just in daily operation but especially during unforeseen power interruptions. At the heart of ensuring safety and passenger comfort during such events is a specialized device known as the ARD Elevator Power-Off Leveling Device. This sophisticated mechanism is engineered to automatically bring an elevator car to the nearest floor and safely open its doors when a main power failure occurs, transforming a potentially alarming situation into a managed, secure event.
Core Function and Operational Principle
The primary function of the ARD (Automatic Rescue Device) is to act as an intelligent failsafe. During a normal power outage, a traditional elevator would simply stop, stranding passengers between floors in a dark cab, often for extended periods until power is restored or emergency services arrive. This scenario can cause significant anxiety, claustrophobia, and poses a serious risk to individuals with medical conditions.
The ARD system is designed to prevent this. It is continuously monitoring the building's main power supply. The instant a power failure is detected, the device's control logic is activated. It does not rely on the building's main power; instead, it is typically connected to a dedicated backup power source, such as a battery unit (ARD Pack) or an Uninterruptible Power Supply (UPS). This ensures it has the necessary energy to perform its function independently.
Using this backup power, the ARD takes control of the elevator's drive system. Through its programming, it determines the direction to the closest landing floor-whether above or below the car's current position-based on pre-set parameters and safety checks. It then carefully drives the elevator car at a reduced speed to that floor, ensuring a smooth and controlled approach. Once the car is accurately leveled with the landing, the device activates the door opening mechanism, allowing passengers to exit safely onto a solid floor rather than being trapped in the hoistway. After a predetermined time, the doors will close, and the elevator will remain inactive until main power is restored and the system is reset.
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