Specifications

Mobility and Logistics, Traffic Solutions
Sopers Lane, Poole, Dorset, BH17 7ER
Security classification Unrestricted Page 51 of 83
Version 2 Status Released
Last Editor Harry Smyth Date 09/12/2014
Document Name Configuration Control Document No. 667/CC/45950/000
Copyright © Mobility 2014. All Rights Reserved. Mobility is a division of Siemens Plc
4.2.5 LSLS and HPU
LSLS and HPU Selection
Following an evaluation of the stream, phases and lanterns to be served by a controller the
number of required LSLS cards can be calculated. Please refer to ST950ELV controller
General Handbook for further details on load calculations. Figure 35 and Figure 36 also
provide information on the Outercase required to accommodate the load and equipment.
LSLS cards are allocated to specific positions in a specific order, as detailed in Figure 36.
With further reference to Figure 35 and 35 there may be occasions when the combination of
cabinet components required will not be accommodated in one controller cabinet, (e.g. when
more than three LSLS cards are required). To avoid the requirement for an entire additional
controller a Miscellaneous Equipment Cabinet (MEC) can be specified.
Figure 35 – ST950ELV LSLS, HPU Selection
Figure XX
On those occasions when a customer has a specific requirement to ensure that the inrush
current of a controller is kept to a minimum it is possible to specify a low inrush version of the
20A cabinet. Please refer to Table 4.