HRA-JTD Three-dimensional traffic light training equipment

*Functional features

The panel mainly consists of control buttons, control inputs, signal outputs, common terminal and power outputs.

1、Control buttons: consist of start button, stop button, manual button, automatic button and 4 pavement call buttons, and 8 buttons are mostly buttons with self-reset type;

2, control input: by the start terminal, stop terminal, manual terminal, automatic terminal, 2 pavement call terminal and 2 time control signal terminal, and with the PLC module's input terminal relative to the connection;

3, signal output: by the east and west 8 traffic light terminals, north and south 8 traffic light terminals and 4 time control signal terminals, and with the PLC module's output terminal relative to the connection;

4, the common terminal: input common terminal by the common terminal of the buttons in series, so the port can be connected to +24V, can also be connected to 0V; output common terminal by the traffic lights (two-colour light-emitting diode) of the positive pole in series, so the port can only be connected to +24V;

Note: No matter transistor type PLC or relay type PLC, the output common terminal can only be connected to +24V.

5, control requirements: with instructions and control functions. By four-direction straight and turn (red/yellow/green) indicator display module, four-direction digital countdown display module and four-direction sound indicator module and other instructions; by the start/stop button, hand/automatic button, pedestrian call button and other controls.

6、Control programme: 8 input points (8 control buttons) and 16 traffic light output points (east-west lane left, straight, right red/yellow/green indicator; north-south lane left, straight, right red/yellow/green indicator; east-west pedestrian lane straight red/green indicator; north-south pedestrian lane straight red/green indicator), 4 digital countdown output points (east-west direction timing and north-south direction timing) and 3 4 digital countdown timer outputs (east-west timer and north-south timer) and 3 sound outputs (left, straight and right sound control).

*Practical training project

1, organic integration of electronic technology, PLC control and communication networks and other technologies, reflecting the characteristics of the modern transport industry. The overall structure of the open, can easily replace the module, according to the principle of integration of learning functions to determine the content of the module, so that the teaching can be convenient to choose the module needed.

★Time modification of the display module and debugging practical training;

★Practical training for the installation and debugging of button modules;

★Expansion of the module and installation of practical training;

★Practical training for the installation and debugging of communication equipment;

2, for teaching, according to the work process-oriented, engineering integration mode of planning teaching activities, to complete the following work tasks:

In line with the law of teaching step by step

(1) Installation project of the control circuit:

Select the device configuration of PLC modules, power supply modules, etc., can complete the following PLC application technology work tasks.

★ Practical training for the expansion and installation of modules;

★Practical training for the connection and debugging of control circuits;

(2) PLC programme writing project:

★The main road traffic light workflow of the programme writing practical training;

★The main road red, green and yellow lights workflow of the programme writing practical training;

★The main road traffic lights and pedestrian traffic lights workflow of the programme writing practical training;

★The main road red, green and yellow lights and pavement traffic light workflow of the programme writing practical training;

★The main road red, green and yellow lights and digital countdown display workflow procedures to write practical training;

★The main road red, green and yellow lights, digital countdown display and pavement traffic light workflow program writing practical training;

★ main road red, green and yellow lights, digital countdown display and pavement traffic light workflow procedures to write practical training;

3、This equipment is used for assessment, can examine the vocational ability:

★Circuit installation ability;

★The ability to write the control programme of the equipment;

★Ability to install and debug the automatic control system;

★PLC network installation, programming and debugging capabilities;