Siemens ST950 - ELV Solar Cell

Mobility, Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
Security classification
Unrestricted
Page
76 of 154
Version
7
Status
Issued
Last Editor
manpreet.jeerh
Date
January 2020
Document Name
ST950 ICM Handbook
Document No.
667/HE/45950/000
Copyright © Siemens plc 2020. All Rights Reserved. Mobility is a division of Siemens Plc
Switched ELV Tactile and
integrated drive module with
fault output
(e.g. Radix ITE220)
LSLS OUTPUTLSLS RETURN
IO CARD
Common
Normally Open
LSLS CARD
Pedestrian Green
(not lamp-monitored)
Green Man input
Enable Link
-
+
Common
Input
Fault Output
-
+
Output
Input
If not using IO card, link
Enable + and Enable –
with wire
and leave Fault output
connections open-circuit.
Figure 38 – Pedestrian Green-Man drive and switched Tactile
connections with fault output
4.17 ELV Solar Cell
The ELV Solar Cell connects directly to the HPU connector SK2 as shown in Figure
39 below.
The solar cell is powered from -24V DC from the HPU.
Do not try to use a single common return between the tactile and the IO
card (ie do not link the IO card “Input Common” to “Output Common”)
If wiring tactiles in parallel:
Connect Enable + of each tactile together and Enable – of each tactile
together (if used)
Similarly, connect the Fault Output + or each tactile together and Fault
Output – of each tactile together (if used)