Table 9 – St950 Elv 48V Lamp Drive Capability - Siemens ST950 Handbook

4.10.2 Lamp Drive Capability
The following table gives the lamp drive capability of the controller as a whole, each
'Phase Driver' (or 'Lamp Switch') card and each aspect. The 'Watts' and 'Lamps'
columns are equivalents for the currents shown based on a 48V supply and 12W
Siemens Helios ELV Signals respectively.
Max. lamp current that a normal ST950 ELV
Controller can supply including regulatory signs
and excluding short-term illumination, i.e.
red/amber.
Max. lamp current that a 'high-current' ST950 ELV
can supply including Regulatory Signs but
excluding short-term illumination, i.e. red/amber.
Also see note below
Max. lamp load for one 32-output LSLS card
(including red/amber).
Max. load for a single output on an LSLS card.
The high-current ST950ELV Controller uses the 40A Controller Upgrade
Kit. This increases the current capability (including regulatory signs) of the
Controller to 40A. This option also uses two ELV transformers, see section
4.10.5.
For the 40/42V ELV Controller, see section 4.12
Security classification
Version
Last Editor
Document Name
Copyright © Siemens plc 2015. All Rights Reserved.
Table 9 – ST950 ELV 48V Lamp Drive Capability
Unrestricted
4
Paul Cox
ST950 General Handbook
Mobility Division, Traffic Solutions
Sopers Lane, Poole, Dorset, BH17 7ER
Max Max
Current Power
(Amps) (Watts)
20A 960W
40A 1920W
20A 960W
2A 96W
Page 46 of 107
Status Issued
Date 16-Jul-2015
Document No. 667/HB/46000/000
Mobility is a division of Siemens Plc
No. of
LED
Lamps
80
160
80
See
Table 10