Siemens SITOP PSU8600 - Page 293

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Power supply system SITOP PSU8600
Manual, 09.2018, A5E36758446-5-76
293
General
Parameters, general
Parameter
Value range
Default setting
Prioritized buffering of output 1 enabled
Yes/no
No
Soft output characteristic Yes/no No
System start characteristics
• No on delay
• On delay 25 ms
• On delay 100 ms
• Load-optimized on delay
• Variable on delay
No on delay
Threshold for system output current prewarning
0 - 100 %
90 %
Dead time for system output current prewarning
0 - 60 000 ms
5000 ms
General prewarning threshold for individual out-
put current in MANUAL mode
0 - 100 % 90 %
Dead time for alarm message 'Input voltage out-
side permitted range'
0 - 1 000 ms 0 ms
●
Prioritized buffering of output 1 enabled
When the power fails, output 1 of the basic unit can be prioritized so that it is still
supplied.
Prioritizing output 1 means that the longest possible buffer time is ensured for this output.
If output 1 is prioritized, all of the remaining outputs are switched off at approximately half
of the nominally available buffer time for the remaining duration of the power failure.
LEDs "ON/OFF/RST" of the outputs that have been switched off are lit red.
Outputs 2 ... n, which are switched off when the power fails as output 1 has priority, ar
e
aut
omatically switched-on again when the line supply returns.
For the basic unit, the typical buffer time is 15 ms, additional buffer modules extend the
buffer time.