Protecting Against Longer Power Failures - Siemens PSU8600 Manual

Applications

12.2 Protecting against longer power failures

12.2 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. In order
to prevent failure of the 24 V supply voltage, in the product range of SITOP power supplies,
various DC UPS solutions are available, where an output of the PSU8600 power supply
system can be buffered for a longer period of time.
Using DC-UPS with various battery modules (lead acid accumulators), buffer times in the
range of hours can be implemented. The innovative SITOP UPS1600 devices also offer new
options when it comes to diagnostics and system integration. They have extensive functions,
openly communicate via USB or Ethernet/PROFINET and are completely integrated in
Totally Integrated Automation (TIA).
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 batteries
(https://support.industry.siemens.com/cs/ww/en/ps/18043/man)
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Power supply system PSU8600
Manual, 05.2017, A5E36758446-3-76