Siemens EH.75M.11. Spezifikationen PDF herunterladen (Seite 169)

T400 Controller Facilities Manual

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

Switch to Alternative Timings

This input signal forces the Pelican to switch to the first alternative set of timings (for

vehicle green max time and FVP time only).

UTC Dim Override (SO)/Local Link Dim Request

One of these two types of remote dimming can be selected via the handset for the

pelican/pedestrian. The main difference between the two types is:

• the UTC input signal overrides any request for the controller to be in the dim

state provided by the solar cell output and thus provides a “Bright Request”

signal.

• the Local Link Dim Request signal is required for a slave pelican controller in a

linked dimming situation and provides a “Dim Request” signal. This means that

a master controller which has a solar cell controlling its dimming facility may be

able to pass on its dim/bright state to another (slave) controller without a solar

cell.

Local Link Disable (LL)

The effect of this input signal is to disable the Local Link Pedestrian Inhibit facility

(PV1) which is detailed in section 17.10.3. This signal is not required for UTC Control

as the removal of PV inhibits PV1 as well as extensions during the window time (UIE).

Fall Back Mode (FM)

This causes the Pelican to disable C.L.F. mode whilst the FM bit is true/active. Thus, if

higher modes are not requested, the pelican will work in the next mode below C.L.F.

in the priority table, normal VA or FVP.

17.10.2 UTC Facilities (Reply Bits)

Vehicle Green Confirm (GX)

This output signal indicates that the vehicle phase is showing green on the street. This

output signal must always be assigned to a Normally Closed relay so that it fails to the

inactive (closed contact) state.

Wait Indicator Confirm (WT)

This output signal indicates that the Wait indicator for the pedestrian phase is

illuminated on the street. This output signal must always be assigned to a Normally

Closed relay so that it fails to the inactive (closed contact) state.

Pedestrian Green Confirm (PC)

This output signal indicates that the pedestrian phase is showing green on the street.

This output signal must always be assigned to a Normally Closed relay so that it fails

to the inactive (closed contact) state.

DFM Fail Confirm (DF)

This output signal indicates when the DFM lamp has been illuminated. This output

signal should be assigned to a Normally Open relay so that it defaults to the active

(open contact) state when power is removed from the controller.

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