The system must reproduce a threeâ€stop lift with which it shall be possible to simulate
realistically allthe sequences commonly employed for its use.The control and the automatic
management must be carried out by means of PLC.The progressive movement of the cabin
through the floors must be displayed through ledscontrolled by an internal electronic circuit
that shall activate the floor limit switches and the safetyones, displayed on the leds too.
The floor reservation, pointed out by a flashing signal, shall happen in any
momentindependently of the cabin position and in base to the priority.
The manual opening and closing of the cabin door and of the side doors must be simulated
bymeans of pushâ€buttons.
A pushâ€button also must simulate the intervention of the protection thermal relay for the
motor,while the ledsmust show the starting of the electromechanic brake of the cabin motor
and of theelectric lock of the doors of the different floors.
Besides the panel must present the faithful reproduction of the pushâ€button panel normally
setinside the cabin, with possibility of reservation with indication through bright pushbuttons,
STOP and ALARM pushâ€button; on the external doors of each floor and on the pushbutton
panel the bright indication of the cabin ascent/descent must be set and of its position
as to the different floors.
A fault simulator must offer to the teachers the possibility of introducing, through a
microswitch, faults during the simulation.
A manual cycle must be also foreseen for the cabin ascent descent, independently of the PLC.
All the LEDs with the exception of the ones displaying the limit switch, must be connected to
the terminals of the first left block, that must be connected to the PLC outputs; all the
cathodes of the LEDs shall convert to the “com”.
The pushâ€buttons , whose common shall be represented by “com”, on the contrary, must be
connected to the terminals of the second right block, that will be on their turn connected
through the PLC inputs. The closing of the “reset” pushâ€buttons must reset the initial
conditions.
Two 37 pin connectors, set to the rear part, must allow to connect directly the panel to the
PLC.
The panel must be provided with an internal stabilized power supply unit with these features:
†Output voltage 24 V
†Output Current 1 A
†Thermal protection
†Overload protection
A bipolar plug, with relative ground, located on the rear, must allow the system to be supplied
at 220 V †50 Hz.
The trainer must be supplied with manual in English language.
ISO 9001:2015
