Siemens EH.75M.11. Especificaciones descargar pdf (Pagina 172)

T400 Controller Facilities Manual

667/EB/20200/000 Page 17-12 Issue 9

Link Out (Vehicle green confirm)

This output signal is essentially a Vehicle Green Confirm signal and can be used to

provide a Ped. Inhibit (PV1) to another pelican usually in a staggered link situation.

The effect then is to inhibit the ped. of the other pelican while it itself is not in the

vehicle green period. Note that this does not take account of any race condition

between two controllers that are linked together and as such if the pushbuttons of the

two controllers are pressed simultaneously there is a possibility that both pelicans

could go to green at the same time and so true dual pelican operation cannot be

achieved in this manner.

Link Out (Dim Request)

This signal is used by the master controller in a linked dimming situation, where it is

usually used to pass on the dim/bright state of the master to the slave pelican

controller.

17.10.4 Call/Cancel Function

Call/Cancel Ped. Demand (CC)

This input signal acts as a normal call/cancel demand, in that a demand must be present

for a certain period (call time) before the demand is accepted. Similarly if the demand

disappears before the controller has satisfied it, then it must permanently disappear for

a certain period (cancel time) before the controller will forget about it. The effect of

the input is to put in a demand for the pedestrian phase, or for a turning phase. This

facility can also be used on a detector input to provide the facilities of a queue

detector.

17.10.5 Puffin I/O Facilities

More detail on the Puffin facility, refer to the General Puffin spec EM21843.

Push Button and Kerbside Detector Inputs

Two push button inputs are available on each Puffin stream. In addition, each Puffin

stream has two kerbside detector inputs which indicate when there are pedestrians

waiting to cross.

Each input from push button or kerbside detector is held active in the controller for a

configurable hold time (after the input has gone inactive).

The pedestrian demand is only registered if the following conditions are met:

a) a push button is being pressed or hold period active

AND

b) a pedestrian is being detected by the kerbside detector or the kerbside

hold period is active.

The pedestrian demand is cancelled and the wait indicator turned off if all kerbside

detectors indicate no pedestrians present for a configured detector timeout period.

1 2 ... 167 168 169 170 171 172 173 174 175 176 177 ... 307 308

Sin comentarios

Siemens EH.75M.11. Especificaciones Pagina 172