Siemens ST750 - Manual Panel

Mobility and Logistics, Traffic Solutions
Sopers Lane, Poole, Dorset, BH17 7ER
Security classification
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Page
50 of 73
Version 008
Status
Released
Last Editor Nathan Fearnhead
Date
16/06/2017
Document Name Configuration Control
Document No.
667/CC/32750/000
Copyright © Mobility 2017. All Rights Reserved. Mobility is a division of Siemens Plc
With reference to
Figure 48, positions have been set aside on the Outercase Back Plate for both the Regulatory
Sign Expansion Kit Transformer and the Regulatory Sign Expansion Kit PCB. The position
normally occupied by Loop Termination PCB LT8 should be utilised for the Regulatory Sign
Expansion Kit Transformer. The position normally occupied by Loop Termination PCB LT4 should
be utilised for the Regulatory Sign Expansion Kit PCB. If the Loop Termination PCBs that
normally occupy these positions have been specified then they should be incremented by one
position.
3.16 ST750ELV Detector Supply Kit
Detectors are normally powered from the in-built detector supply, which provides rectified and
earthed -24V rms at 2.0A DC. If more current is required, to power additional detectors, then an
additional -24V 2A (50VA) detector power supply kit may be fitted. With reference to
Detector Supply Kits available include:
- 2 Amp Detector Supply Kit (667/1/33075/000)
Figure 60, the additional Detector Supply Kit should be positioned at the bottom centre or top
centre of the Cabinet Back Plate.
Note: A maximum of two Detector Supply kits can be specified.
Detector Supply Kits available include:
- 2 Amp Detector Supply Kit (667/1/33075/000)
Figure 60
The AC input for the ancillary power supply should be obtained from the 6A Mini Circuit Breakers
on the master switch unit. The step down transformer will be supplied with conventional power
supply leads to allow this connection.
The AC output from the transformer is rectified and applied to a terminal block, as detailed in
Detector
Supply
Output
Mains
Input