LS300

Traffic Controller

Traffic controller LS300 is a microprocessor control system with 16 lamp outputs and 8 programmable digital inputs.
The interface “man-machine” has been carefully developed, providing LS300 with a wide LCD display with 80 characters, so that it always gives a clear and intuitive indication of way of working; it supplies the monitoring and recording of temperature, power voltage and power consumption of the installation in real time, which are essential information in case of irregularities or breakdowns.
LS300 has been wholly manufactured with solid components, according to all CE standards, in particular it complies the requirements of EN 214-9 concerning Traffic Lights installations, and UNI EN 12675 specific for traffic controllers.

General characteristics

Traffic controller mod. LS300 has been produced for controlling vehicular and/or pedestrian traffic, both in an independent and in a centralized system. The traffic controller is able to record information concerning the traffic and to assure in any moment the control and the transmission of data to involved authorities.

Operative functions

Flashing
All red
Manual with control through pushbutton or radio remote control
Automatic with fixed times
Synchronized
Actuated by the traffic with cancelled and/or extended phases
Preferential phase to public or emergency means of transport
Automatic change between summer time / daylight time
Monitoring of power voltage and the current flow of each lamp connected to verify and indicate possible failures
Remote control with automatic sending of messages via modem in case breakdowns occur

Technical features

Multiboard structure for an easy maintenance.
12 lamp outputs (can be extended to 24) all checked by current flow so as to indicate a possible lack of charge or increasing charge
4 auxiliary outputs (can be extended to 6) to be set up as lamp, relay output,
8 digital and programmable inputs
8 independent programs with different structures and times, selectable from LCD panel, remote control or from
Internal weekly tables that can be programmed RS 232 through PC
1 serial port RS232
Completely programmable ON-SITE.
Entry password that allows to change installation times also from LCD panel
Maximum load for each output 800W
Centralizable with GSM/GPRS technology
Also available in LS312 version with 12 Vcc power for traffic light system with photovoltaic panel
Software language Italian/English

Control and safety

With reference to UNI EN 12675 norm, the traffic controller assures a series of cyclic control circuits and on Hardware that have been differentiate in order to give a complete security on all outputs.
In particular the traffic controller is provided with the following controls:

“Conflict Greens”: check of switching on of green lights, following a programmable matrix;
“Intergreen”: control of inter-time among green lights, following a programmable matrix;
“Lamps burnt out”: voltage control on all the outputs of the traffic controller
“Program error”: verify the installation program and that times programmed are exact
“Current control”: check of current flow on all the lamps present on the installation

The intervention of one of the controls causes a state of alarm that, according to the seriousness, makes the installation in “flashing mode” or just indicates, through display or GSM modem, the failure to the personnel in charge of maintenance service.

LS300 is also provided with a register of events (“Black box”) where it stores the presence of any alarm or breakdown, recording date and time of the event, temperature and voltage supply, state of traffic controller, active program in that moment. Traffic controller programs and the black box are settled on different memories, both EEPROM type.

Setting of traffic plans

The software has been studied for technicians/installators and it has been developed in Windows® operative system. In this way, it allows to operate autonomously from the installation to the complete programming of the junction functioning. It is possible to test the program viewing it on video before downloading it through serial connection to controller.
Moreover, it is possible to collect or download different programs in the controller without stopping its functioning; this can be done through entrance procedure protected by password, in order to guarantee the access only to authorized personnel.

Applications

Traffic controller LS300 is flexible and easy to use and it is mostly recommended in the following situations:

crossroads with 4 streets with or without pedestrian crossing, with 2, 3 or 4 phases
T junctions
Pedestrian crossing with or without speed control devices
Alternate one-way street
Access control in tunnels