FLASH YELLOW

There are three ways the system can enter this mode:-

1. When the Master or Slave is turned on, this mode is automatically selected
2. If a fault condition is detected
3. Selected by pressing the "FLASH" mode button

Manual-1

A small handheld cabled controller is used to control all manual functions. It is to the Master Control panel via a 50 meter 4 core cable that can be extended to 100 meters.

The three manual controller buttons:- STOP / MASTER GREEN / SLAVE GREEN

Indication of the state of the traffic lights is also provided. This indication will flash if a button is operated while the system is in a MINIMUM TIME period or RED CLEARANCE TIME. This is important due to the fact that the minimum green and red times cannot be overridden and some indication needs to be given to the operator that the system has received the command but is waiting for a minimum time.

To select this mode, press the "MANUAL" mode button on the Master unit. The system is now under the control of the manual controller. Pressing the "STOP" button will terminate the running phase that will go to RED. Both phases will stay on RED until a "MASTER GREEN" or "SLAVE GREEN" button is pressed. (Note that the pre-set RED TIMES cannot be overridden.) While the Master is green, pressing the "SLAVE GREEN" button will have no effect and vice versa.

AUTO (Time mode)

This mode is used to control a single lane of traffic where preset timers are used to regulate stop and go times. Times are entered on the keypad and assigned to the appropriate timers. All times are displayed on the LCD and automatically stored in memory when the system is turned off. This alleviates the need to re-enter the times every time the system is turned on.

Before entering this mode, RED and GREEN times must be determined and entered into the Master unit. To set, use the keypad at the Master unit to enter the time, then press the required TIME SETTING key. (eg. Master Red Time)

Once the times have been entered, press the "AUTO" mode button. If the system is in "FLASH YELLOW" when the "AUTO" button is pressed then both phases will go to RED and traffic will be controlled in accordance with the preset times. If the system is in "NORMAL" mode when the "AUTO" button is pressed, then the present cycle will be allowed to finish before the "AUTO" mode takes control.

NORMAL (Vehicle-actuated mode)

This mode is used to control a single lane of traffic where vehicle detectors are used in conjunction with preset timers. When a moving vehicle is detected a demand is stored, displayed on the LCD and used to control traffic flow.

Before entering this mode, RED and GREEN times must be determined and entered into the Master unit. To set, use the keypad at the Master unit to enter the time, then press the required TIME SETTING key. (e.g. Master Red Time)

Once the times have been entered, press the "NORMAL" mode button. The system automatically registers an artificial demand for each phase for the first cycle, and then allows the control of traffic in accordance with the detected vehicle flow and the times that have been preset. If the vehicle detector is not connected an alarm will occur and the system will not select this mode.

NOTE 1.
The type of vehicle sensor used will detect movement only. It is therefore possible for a vehicle to be waiting and not have been detected. If this is deemed to be a problem, the sensor can be modified to produce a pulse every 2.5 minutes. Contact supplier for details. 

NOTE 2.
Systems are supplied with detectors operating on a frequency of 10.525Ghz which do not require an individual licence. Systems may be supplied (ON REQUEST) with detectors operating on a frequency of 10.587Ghz, but these units will require an individual licence.

NOTE 3.
Check at least once a year that frequencies and licences are still valid.

 

Two-way Traffic Control

Manual-2 (Manual Return)

This mode of operation is used where traffic is flowing in both directions and the road plant requires to cross or have access to the carriage-way. The CS-200, when in this mode, is under the control of either the CABLED MANUAL CONTROLLER or a PORTABLE RADIO MANUAL CONTROLLER (optional) which can be used from a truck, tractor or around the work-site.

Both the Master and Slave normally show GREEN allowing traffic flow in both directions. When the Master unit receives a "STOP" command, both the Master and Slave go to RED. This condition will remain until the Master unit receives a "GO" command, where upon the Master and Slave go back to GREEN.

Manual-3 (Auto return) - Not allowed in NSW

This mode of operation is used where traffic is flowing in both directions and road plant or other vehicles are leaving a work area and find it difficult to enter a busy carriage-way.

The CS-200, when in this mode, would have the CABLED MANUAL CONTROLLER or PORTABLE RADIO MANUAL CONTROLLER (optional) positioned so the driver of the vehicle wishing to enter the carriage way can operate the "STOP" button.

Both the Master and Slave normally show GREEN allowing traffic flow in both directions. When the driver presses the " STOP" button both the Master and Slave go to RED. After a preset time, set by the "Master Red time", the Master and Slave go back to GREEN.

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