| GENERAL NOTES | ||||||||||||||||||||||||||||||||||||||
| SUMMARY OF XSF FLAGS | ||||||||||||||||||||||||||||||||||||||
| SUMMARY OF MSS FLAGS | ||||||||||||||||||||||||||||||||||||||
| MSS1 | - | Set for the duration of CØ (SG3 & SG4). | ||||||||||||||||||||||||||||||||||||
| MSS2 | - | Set for the duration of BØ (SG4). | ||||||||||||||||||||||||||||||||||||
| MSS3 | - | For sending message to TMC regarding Detector 1 alarm. | ||||||||||||||||||||||||||||||||||||
| MSS4 | - | For sending message to TMC regarding Detector 2 alarm. | ||||||||||||||||||||||||||||||||||||
| GENERAL | ||||||||||||||||||||||||||||||||||||||
| Signal Groups 1 & 2, which control normal vehicular traffic, are standard 3-aspect (R/Y/G) circle displays and are provided to allow unopposed exit of a fire vehicle from the fire station. The signal displays remain in the GREEN state until they are forced to close down by detectors (i.e. push buttons) located inside the fire station. After servicing fire vehicles, the signals revert to the GREEN state. | ||||||||||||||||||||||||||||||||||||||
| START-UP | ||||||||||||||||||||||||||||||||||||||
| The FLASHING YELLOW and ALL RED START UP intervals are not required. The controller shall begin normal operation in the MINIMUM GREEN interval of AØ. Demands for BØ or CØ placed prior to the resumption of normal operation are cleared. | ||||||||||||||||||||||||||||||||||||||
| This site should only operate in ISOLATED mode. | ||||||||||||||||||||||||||||||||||||||
| Use CØ yellow for BØ yellow if transitioning from BØ -> AØ (SG1 overlaps from BØ -> AØ) | ||||||||||||||||||||||||||||||||||||||
| SUMMARY OF FIRE STATION PUSH BUTTONS | ||||||||||||||||||||||||||||||||||||||
| Three push buttons are located in the fire station and are connected to Detectors 1, 2, and 3. | ||||||||||||||||||||||||||||||||||||||
| Detector 1 | ||||||||||||||||||||||||||||||||||||||
| Push Button 1 is activated when a fire vehicle intends to travel north along Narre Warren-Cranbourne Road, turning Right as it exits the Fire Station. | ||||||||||||||||||||||||||||||||||||||
| Detector 2 | ||||||||||||||||||||||||||||||||||||||
| Push Button 2 is activated when a fire vehicle intends to travel south along Narre Warren-Cranbourne Road, turning Left as it exits the Fire Station. | ||||||||||||||||||||||||||||||||||||||
| Detector 3 | ||||||||||||||||||||||||||||||||||||||
| Cancel Button is used to Cancel the extension of emergency vehicle operations called by Detectors 1 and 2. | ||||||||||||||||||||||||||||||||||||||
| SUMMARY OF FIRE STATION INDICATORS | ||||||||||||||||||||||||||||||||||||||
| Wait States / Special Outputs | ||||||||||||||||||||||||||||||||||||||
| There is a “Call Received” Indicator lamp associated with each call button (right & left) within the Fire Station. These lamps are driven by WS8/SO1 (right turn) and WS7/SO2 (left turn). | ||||||||||||||||||||||||||||||||||||||
| DETAILED DESCRIPTION OF OPERATION | ||||||||||||||||||||||||||||||||||||||
| GENERAL INFORMATION | ||||||||||||||||||||||||||||||||||||||
| 1 | Controller rests in AØ. | |||||||||||||||||||||||||||||||||||||
| 2 | Right turn push button (Detector 1) places demand for CØ. | |||||||||||||||||||||||||||||||||||||
| 3 | Left turn push button (Detector 2) places demand for BØ. | |||||||||||||||||||||||||||||||||||||
| 4 | If Right turn push button (Detector 1) is activated in BØ, the controller closes down SG1 in BØ immediately and transition to CØ. | |||||||||||||||||||||||||||||||||||||
| 5 | If Detector 1 and Detector 2 are activated together, CØ is demanded, i.e. CØ has priority over BØ. | |||||||||||||||||||||||||||||||||||||
| FIRE BRIGADE RIGHT TURN OUT OPERATION | ||||||||||||||||||||||||||||||||||||||
| CALL FUNCTION via RIGHT TURN PUSH BUTTON: Detector 1 | ||||||||||||||||||||||||||||||||||||||
| Activation of Push Button 1 (Detector 1 - Right turn out of Fire Station) starts a DELAY TIMER (Special Purpose Timesetting No. 9). Expiry of this DELAY TIMER places a call for CØ. As soon as the call for CØ is established, MSS1 is set and the controller steps into AØ intergreen. | ||||||||||||||||||||||||||||||||||||||
| CØ is automatically extended to maximum, unless the extension interval is terminated by the CANCEL FUNCTION (see below). | ||||||||||||||||||||||||||||||||||||||
| Activation of Detector 2 during CØ will have no effect on the operation of CØ. | ||||||||||||||||||||||||||||||||||||||
| After CØ is finished, MSS1 is reset and the controller returns to AØ. | ||||||||||||||||||||||||||||||||||||||
| FIRE BRIGADE LEFT TURN OUT OPERATION | ||||||||||||||||||||||||||||||||||||||
| CALL FUNCTION via LEFT TURN PUSH BUTTON: Detector 2 | ||||||||||||||||||||||||||||||||||||||
| Activation of Push Button 2 (Detector 2 - Left turn out of Fire Station) starts a DELAY TIMER (Special Purpose Timesetting No. 10). Expiry of this DELAY TIMER places a call for BØ. As soon as the call for BØ is established, MSS2 is set and the controller steps into AØ intergreen. | ||||||||||||||||||||||||||||||||||||||
| BØ is automatically extended to maximum, unless the extension interval is terminated by the CANCEL FUNCTION (see below). | ||||||||||||||||||||||||||||||||||||||
| Activation of Detector 1 during BØ will force controller to close down SG1 and transition to CØ. | ||||||||||||||||||||||||||||||||||||||
| After BØ is finished, MSS2 is reset and the controller returns to AØ. | ||||||||||||||||||||||||||||||||||||||
| CANCEL FUNCTION via PUSH BUTTON 3 (DETECTOR 3) | ||||||||||||||||||||||||||||||||||||||
| Activation of Push Button 3 (Detector 3 – Cancel button) starts a CANCEL TIMER (Special Purpose Timesetting No. 11), expiry of which terminates BØ or CØ extension. If BØ or CØ extension has not yet commenced, it will be cancelled, thus terminating the running phase at the end of its minimum green. | ||||||||||||||||||||||||||||||||||||||
| OPERATION OF WAIT STATES and SPECIAL OUTPUTS | ||||||||||||||||||||||||||||||||||||||
| Wait State 8 (WS8) and Special Output 1 (SO1) drive the right turn CALL RECEIVED indicator. | ||||||||||||||||||||||||||||||||||||||
| When transitioning from AØ → CØ, Wait State 8 and Special Output 1 are activated from the point that Detector 1 is activated until the end of CØ minimum green. | ||||||||||||||||||||||||||||||||||||||
| Wait State 7 (WS7) and Special Output 2 (SO2) drive the left turn CALL RECEIVED indicator. | ||||||||||||||||||||||||||||||||||||||
| When transitioning from AØ → BØ, Wait State 7 and Special Output 2 are activated from the point that Detector 2 is activated until the end of BØ or CØ minimum green. | ||||||||||||||||||||||||||||||||||||||
| ALARM STATUS | ||||||||||||||||||||||||||||||||||||||
| Detector 1 | ||||||||||||||||||||||||||||||||||||||
| If Detector 1 is on continuously do not call CØ (apart from when it is first activated) until Detector 1 again changes state from OFF to ON. Also if Detector 1 is on continuously for greater than the value in Special Purpose Timesetting No. 12 then set MSS3 - this can be used to send a warning message. | ||||||||||||||||||||||||||||||||||||||
| Detector Alarm Generation: | ||||||||||||||||||||||||||||||||||||||
| · When the controller is on line to SCATS and Detector 1 is continuously on for the periods as specified by the SCATS TDA message, then a Detector Alarm (DA) will be generated on Detector 1 | ||||||||||||||||||||||||||||||||||||||
| · Do not alarm Detector 1 if in the OFF state. | ||||||||||||||||||||||||||||||||||||||
| · These 2 conditions mean that a DA will be generated "ONLY IF DET SHORT CIRCUIT". | ||||||||||||||||||||||||||||||||||||||
| Detector 2 | ||||||||||||||||||||||||||||||||||||||
| If Detector 2 is on continuously do not call BØ (apart from when it is first activated) until Detector 2 again changes state from OFF to ON. Also if Detector 2 is on continuously for greater than the value in Special Purpose Timesetting No. 13 then set MSS4 – this can be used to send a warning message. | ||||||||||||||||||||||||||||||||||||||
| Detector Alarm Generation: | ||||||||||||||||||||||||||||||||||||||
| · When the controller is on line to SCATS and Detector 2 is continuously on for the periods as specified by the SCATS TDA message, then a Detector Alarm (DA) will be generated on Detector 2. | ||||||||||||||||||||||||||||||||||||||
| · Do not alarm Detector 2 if in the OFF state. | ||||||||||||||||||||||||||||||||||||||
| · These 2 conditions mean that a DA will be generated "ONLY IF DET SHORT CIRCUIT". | ||||||||||||||||||||||||||||||||||||||
| Detector 3 | ||||||||||||||||||||||||||||||||||||||
| If Detector 3 is on and not alarmed when Detector 1 and/or Detector 2 are activated then the extension of BØ or CØ respectively is cancelled. | ||||||||||||||||||||||||||||||||||||||
| Detector Alarm Generation: | ||||||||||||||||||||||||||||||||||||||
| · When the controller is on line to SCATS and Detector 3 is continuously on for the periods as specified by the SCATS TDA message, then a Detector Alarm (DA) will be generated on Detector 3 | ||||||||||||||||||||||||||||||||||||||
| · Do not alarm Detector 3 if in the OFF state. | ||||||||||||||||||||||||||||||||||||||
| · These 2 conditions mean that a DA will be generated "ONLY IF DET SHORT CIRCUIT". | ||||||||||||||||||||||||||||||||||||||
| Generation of a DA alarm renders Detector 3 inoperative (i.e. BØ or CØ will run to maximum). | ||||||||||||||||||||||||||||||||||||||