Many customers are curious about how a home lift can stop precisely at each floor level.
The answer mainly depends on two important parts of the lift system:
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Limit switches
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PLC control system
How Does the System Work?
Each floor of the home lift is equipped with a dedicated limit switch.
A limit switch is a simple electrical component that works like a sensor or switch. Under normal conditions, its electrical circuit remains open. This is called a Normally Open (NO) connection.
When the lift cabin arrives at a floor, it activates the corresponding limit switch. Once triggered, the circuit closes and sends a signal to the control box.
The signal is then processed by the PLC (Programmable Logic Controller).
PLC — The Brain of the Lift
The PLC functions like the brain of the entire lift system.
It constantly receives signals from different electrical components and makes decisions based on those signals.
For example:
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The cabin reaches the first floor
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The first-floor limit switch is triggered
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The PLC receives the signal
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The PLC stops the lift motor
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The cabin stops exactly at the first floor
This process ensures smooth and accurate positioning of the lift cabin.
Why Are Limit Switches Important?
There is one limit switch installed for each floor level.
This allows the system to accurately identify the cabin position and stop the lift safely and precisely.
Although the principle is simple, it is extremely reliable and commonly used in home lifts, hydraulic lifts, industrial platforms, and automation systems.
At Beacon Industries, we always focus on reliable control systems and safe lift operation. Browse our 4-Floor Home Elevator to see how these systems are applied in real products.
Website: https://beaconindustriesltd.com
WhatsApp: https://wa.me/8618663723661
We will continue sharing more professional but easy-to-understand lift knowledge in our future blogs.
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