Siemens EH.75M.11. Spezifikationen PDF herunterladen (Seite 28)

T400 Controller Facilities Manual

667/EB/20200/000 Page 2-8 Issue 9

Each stream will then move immediately to its individual switch off stage subject to

any delays caused by minimum greens or intergreens timing off and also subject to any

stage movement restrictions.

When all streams have reached their switch-off stages and all minimum greens have

expired then all signals will be extinguished.

The Part Time switch off stage for each stream is specified in configuration.

2.6.4(i) Start Up

The start-up stage for each stream is configurable. This determines the stages that the

controller starts up in when powering up, when coming out of Part Time, or after the

signals have been switched off from Special Conditioning (using the method that

implements start-up).

2.6.5 Window Timers

(See also section 3.7.4)

Provision has been made within the software to provide 4 separate window timers, one

for each stream. This is necessary because up to 4 stages may be running

simultaneously, each demanding a different window time. Each window timer will run

the window time related to the stage within its associated stream. This is associated

with type 3 phases.

2.6.6 Extend all Red (Hold Intergreen)

(See also section 7)

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).

Each stream’s all red extension time may be accessed using the handset command:

REX followed by the stream number (e.g. REX1)

Each stream’s all red maximum time may be accessed using the handset command:

RMX followed by the stream number (e.g. RMX2)

2.6.7 LMU Supplementary Intergreen Extensions

There is an LMU supplementary intergreen extension facility available for each stream.

If an LMU indicates one red lamp fail (see Section 19.2) then the all red period of the

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Siemens EH.75M.11. Spezifikationen Seite 28