Siemens SITOP UPS1100 - Page 151

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SITOP UPS1600 / BAT1600 / UPS1100
Equipment Manual, 07.2021, A5E37775406-11-76
151
• Switch-in threshold
Setting the switch-in threshold.
• Buffer time
Length of time during which the system should be buffered by the SITOP UPS1600.
• Maximum buffer time
The setting means that buffering is realized for as long as possible. The device only shuts
down when the battery has discharged down to the defined stop buffering voltage. The
value entered for the "Buffer time" parameter is not relevant in this case.
• Discharge cut-off voltage at 20 °C
Voltage where battery discharge is exited. For a system battery (SITOP BAT1600 or SITOP
UPS1100) the discharge cut-off voltage defined for this type is always used.
• Additional buffer time after PC shutdown
Time during which the system should be buffered by the SITOP UPS1600 after the PC was
shut down.
• Expected buffer current
Load current, which is expected at the device output during buffer mode. Please adjust
the correct application load current required. For current settings between 0 A and rated
current, the display in the diagram "Remaining buffer time" is adapted. If a value of 0 A is
entered, then for this parameter, the average value of the actual load current measured at
the output over the last 10 min is assumed. The value of this parameter is used when
calculating the remaining buffer time. The entered value may not exceed the rated device
current.
Note
From the instant in time when the SITOP UPS1600 is switched over into the buffer mode,
the buffer current actually measured is used to determine the expected buffer time
instead of the expected buffer current.
• Reset time
Duration of the output voltage interruption.
• Buffering permitted
When the connection threshold is fallen below, selects whether the system is buffered or
the output is shut down.
• Enable reset after buffering
If the value is set to "Yes", then the output voltage is interrupted after the selected buffer
time expires if, in the meantime, the input voltage returns. This option is useful, when, for
example, computer networks are protected by the UPS that can be activated by a reset
when the power supply is restored. For buffer time "MAX", the output voltage is not
interrupted.
Signaling
Parameter
Value range
Default setting
Downtime alarm
0 - 20,000 ms
100 ms
Wait time for stable input voltage
0.2 - 65 s
1 s