Siemens EH.75M.11. Spezifikationen PDF herunterladen (Seite 170)

T400 Controller Facilities Manual

667/EB/20200/000 Page 17-10 Issue 9

Signals Off Confirm (LE)

This output signal indicates that the signals on the CPU pelican/pedestrian are off for

whatever reason i.e. Signals switched off from the Manual Panel, Red Lamp Monitor

failure, Conflict detected etc. This output signal should be assigned to a Normally

Open relay so that it fails to the active (open contact) state.

Local Link Disable Confirm (LL)

This output signal indicate that the local link facility on the controller has been

disabled, for whatever reason i.e. Local Link disable switch on Manual Panel active,

UTC local link disable control bit active, timeswitch function etc.

UTC Bright Confirm (SOC)

This output signal indicates that the signals on the controller are in the bright state, for

whatever reason i.e. daytime operation, dim override switch on Manual Panel active,

UTC dim override control bit active etc.

Remote Reconnect (RR)

This reply bit is generated when the Remote Reconnect Switch on the Manual Panel is

activated (indicated by the illumination of the associated LED). This switch indicates

to the UTC central office that the controller is ready to resume under UTC control.

Real Time Clock Sync. Reply (CC)

This signal is made active if a successful RTC Sync. has occurred. The duration of the

reply is 3 seconds.

Fall Back Confirm (FC)

An ‘FC’ bit may be returned to indicate that an ‘FM’ control bit has been received.

17.10.3 Local Link Facilities

Local Link Ped Inhibit (PV1)

While this signal is active, it prevents the appearance of the ped. phase irrespective of

demands, subject to the effect of the Override timer described below. A delay time can

be set via the handset so that there is this delay between the PV1 signal being released

and the Inhibit on the controller being lifted. After this, a Window time which is also

alterable via the handset, can come into effect. This is the time after the Inhibit has

been lifted during which the controller ignores vehicle extension detectors and looks

for a pedestrian demand to service, even if PV1 has been reapplied during this time. If

the window timer expires and PV1 has not been reapplied the controller reverts to its

normal working mode.

If PV1 is active the Override timer will start to time if it has been set to a non-zero

value via the handset and normally at the start of the vehicle phase green. This override

timer can optionally be selected (via the handset) to commence timing only if a

pedestrian demand is present while the vehicle phase is at green. This timer is reset

when the PV1 signal goes inactive. If it times out one of two actions may be taken,

depending on handset selection:

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