Mains Supply - Siemens ST750 General Handbook

Conflict System
Physical Hardware CPU Card

2.3 MAINS SUPPLY

The following supply voltages may be used:
It is recommended that the signals are supplied at the nominal mains voltage during
Bright. I.e. For a 200V nominal supply, use 200V transformer/bulbs.
THE PROSPECTIVE SHORT CIRCUIT CURRENT OF THE
SUPPLY MUST NOT EXCEED 16,000 AMPS
Note
Frequency:
Mains Brownout:
Mains Fail:
Battery Support:
Dimming Voltage:
Solar Cell Input:
667/HB/33750/000
Main and Secondary Processors
Phase Drive Card
Nominal Minimum
Voltage Voltage
100-240 85
50Hz 2Hz or
60Hz 2Hz
Continues operating with up to 50ms loss of mains.
Restarts without operator intervention.
Primary cell Lithium battery provides support for the
following during power failures.
(a) Clock Synchronisation (programmable up to 31
days).
(b) Timing Data (greater than one year).
A large capacitor provides support for a minimum of 4
hours if the battery has failed or is removed for
replacement.
120V, 140V, 160V RMS
Dimming cannot be provided at mains supplies below
200V.
Solar input operating voltages are as follows:
Bright to Dim > 80V RMS
Dim to Bright < 40V RMS
Page 21
ST750 G
Self Testing
PCB (244mm x 228mm)
PCB (253mm x 235mm)
Maximum
Voltage
264
**See Note 1
H
ENERAL ANDBOOK
Issue 6