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Spec Sheet Description
Advanced 3-Floor Lift
The unit is a tabletop structure reproducing a 3-floor lift. As in real installations, several sensors and controls are used for the cabin motion & positioning and the doors opening, such as pushbuttons inside the cabin and at each floor.
The front of the unit includes 3 automatic floor doors, and the related call pushbuttons and pilot lamps indicating the cabin movement.
Both the floor and the cabin doors are controlled by electrical motors (with reversing gear for opening and closing); two limit switches are used in each case for these operations. The cabin door includes a photocell to inhibit the door closing when the users are passing through.
The cabin is driven by an electrical motor (with inversion); several limit switches are used for the cabin approaching and stop at each floor. Cabin safety over travel limit switches are also included.
The cabin is able to be controlled with two speeds: fast speed for the motion among floors, and slow speed for the floors approaching.
The cabin pushbuttons are placed in the front of the unit and include: three pushbuttons for the cabin movement between floors, a STOP pushbutton, and an emergency call (simulated by an electronic ringtone. Three spy lamps are included for floor indication (control device and cabin-signaling).
It is possible to manage the unit according to following modes:
- Stand-alone operation with internal microprocessor board;
- PLC control with 24 Vdc operating voltage and at least 20 digital inputs and 16 digital outputs; PLCs with less I/O cannot allow to develop all the functions.
- TTL circuits control with 5 Vdc operating voltage,
- Supervision with PC through USB port in LABVIEW environment.
Training Program
The automation process with the 3-floor lift HM-410/EV enables the theoretical analysis and the experiments on the following main exercises:
- Microswitches
- Relays
- ON/OFF drives of a DC motor
- Lift systems