Siemens EH.75M.11. Especificaciones descargar pdf (Pagina 54)

T400 Controller Facilities Manual

667/EB/20200/000 Page 7-3 Issue 9

Stage movements for all red units are specified as follows:

Unit 7 1 - 2

Unit 6 1 - 3

Unit 5 2 - 3

Unit 4 4 - 5

Unit 3 4 - 6

Unit 2 5 - 8

Unit 1 8 - 1

TABLES

321

Units Binary Value 4 Binary Value 2 Binary Value 1

7 1 - 2 1 - 2 1 - 2

6 1 - 3 1 - 3

5 2 - 3 2 - 3

44 - 5

3 4 - 6 4 - 6

25 - 8

18 - 1

As can be seen from above, the stage moves are entered in the appropriate tables to

equate to the required unit. Thus a movement cannot be specified for two units.

In the example in Figure 21.9, all-red detectors AR1 & AR2 are required to extend

stage transitions 1-2, 1-3 and 1-4, while AR3 & AR4 are required on 3-1 & 3-4. An

extension time of 2.0 seconds and a maximum time of 12 seconds are required.

7.2.1 Independent Intergreens

In some circumstances, when a normal Extend All Red (Hold Intergreen) is applied to

an intersection, there are some phases to which the Intergreen Extension applies, which

are not involved in the conflict, and so whose appearance does not need to be delayed.

In order to cater for this requirement, the Independant Intergreen Facility has been

incorporated within the software. It is possible to specify at configuration, for each

terminating phase, the intergreens to the gaining phases which will not be held by the

Extend All Red facility.

7.2.2 Extend All Red (Hold I/G) Parallel Stage Streaming Facilities

There is an extend all red Facility available on each stream. There is a separate All Red

Extension time and All Red Maximum time for each stream. If the extend all red input

is active on the specified stage to stage movement, then when the first phase in the

stream that is about to go to green reaches the start of its red-green transition period,

the intergreen and delay times concerned with the intergreen are held until the All Red

extension period terminates or the All Red Maximum time is reached. (See also section

19.2.)

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 307 308

Sin comentarios

Siemens EH.75M.11. Especificaciones Pagina 54