St750Elv, St750Lv And St750Led Overview; St750Elv Overview; St750Lv Overview; St750Lv Led Overview - Siemens ST750 Configuration Handbook

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ST750ELV, ST750LV and ST750LED Overview

ST750ELV Overview

2.1
The ST750ELV Controller is designed to avoid the use of on-street voltages that exceed the
nominal ELV limit of 50V. This offers increased electrical safety for engineers working on and
around the intersection, and improved lamp monitoring of very low power LED traffic/pedestrian
signals. An additional benefit of the ST750ELV variant is simplified cabling in the controller. The
core functional unit of the ST750ELV is the Backplane Rack Assembly, which can be supplied as
a standalone module. More often, the Backplane Rack Assembly will be supplied as part of a fully
functioning Pedestrian Controller. The Controller can be supplied either as Single Pedestrian
Controller (2 Phase), Dual Pedestrian Controller (4 Phase) or Small Export Controller (6 Phase).
There are two ST750ELV cabinet options generally available; 400S Small Outercase, ST900
Large Outercase.

ST750LV Overview

2.2
The ST750LV utilises mains 230V voltage to provide a low voltage variant of the ST750LV
controller. The ST750LV can be supplied either as Single Pedestrian Controller (2 Phase), Dual
Pedestrian Controller (4 Phase) or Small Export Controller (6 Phase). The low voltage version of
the ST750LV controller is a direct development of the ST700, and therefore retains the
functionality seen within that controller. The familiar 'biscuit tin' construction has also been
retained. The 'biscuit tin' contains the base functional components. The ST750LV is generally
available in a 400S Small Outercase or a ST900 Large Outercase version.

ST750LV LED Overview

2.3
The ST750LED Controller is very similar to the ST750LV, but has been upgraded to lamp monitor
'Helios CLS (NLM)' LED Traffic Signals. The ST750LED can be supplied either as Single
Pedestrian Controller (2 Phase), or as Dual Pedestrian Controller (4 phase). Please note the
ST750LED is not available as a Small Export Controller (6 phase). Further information is
available in Handbook 667/HB/32921/007.
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Copyright © Mobility 2017. All Rights Reserved.
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Nathan Fearnhead
Configuration Control
Mobility is a division of Siemens Plc
Mobility and Logistics, Traffic Solutions
Sopers Lane, Poole, Dorset, BH17 7ER
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Released
Status
16/06/2017
Date
667/CC/32750/000
Document No.