Applications
9.6 Protecting against longer power failures
SITOP PSU300M/300B
72
Manual, 11.2014, C98130-A7574-A2-2-7629
9.6
Protecting against longer power failures
Sudden and longer failures of the line supply voltage can result in undefined states and
significant danger as a result of the associated failure of the plant or system control. The
SITOP power supply product portfolio includes various DC-UPS solutions to prevent the
failure of the 24 V power supply voltage.
Power supply failures up into the minutes range can be buffered using the maintenance-free
SITOP UPS500 DC-UPS modules based on capacitors (Figure 9-7 24 V buffering to allow
the saving of process data and controlled shutdown of PCs (Page 72)).
Figure 9-7
24 V buffering to allow the saving of process data and controlled shutdown of PCs
Using the free-of-charge SITOP DC-UPS software tool, DC-UPS systems can be simply
integrated into PC-based automation solutions. This supports further processing of the status
signals and safely running down the PC.
You can find additional information at:
Manual, DC UPS with capacitors
http://support.automation.siemens.com/WW/view/en/48932766/133300
Содержание PSU300B
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Страница 38: ...Installation 5 2 Output side connection SITOP PSU300M 300B 38 Manual 11 2014 C98130 A7574 A2 2 7629 ...
Страница 58: ...Technical data 6 9 Dimension drawing SITOP PSU300M 300B 58 Manual 11 2014 C98130 A7574 A2 2 7629 ...
Страница 78: ...Environment SITOP PSU300M 300B 78 Manual 11 2014 C98130 A7574 A2 2 7629 ...