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"UniVert 2" inverter
Page 22 of 42 8000012364 BAL, en
4.3 AC Mains Input (X1)
The SBS is connected to a 230 V AC mains.
The input voltage is fuse protected outside the SBS. For details refer
to the technical data.
The input voltage is continuously monitored (see chapter 4.4).
When the mains voltage is present, the green "mains present" LED
lights up.
4.4 AC Busbar (X2)
The AC busbar is either supplied by the INV output voltage or the
SBS output voltage which corresponds to the SBS circuit voltage.
The INV output voltage is regulated to 230 V 50 H (see chapter 3.9)
and monitored (see chapter 3.5).
The load is only switched over to the SBS circuit if it lies within the
defined tolerances and if a load voltage deviation is detected.
4.5 AC Mains Monitoring System
When the mains voltage is no longer within the tolerance range, the
"mains present" LED goes off.
The SBS changes the operating status from "ready" to "blocked".
If the SBS is fired, the operating status does not change!
The acknowledgement is carried out automatically as soon as the
mains voltage is back within the tolerance range. The green "mains
present" LED is lit, the SBS changes from "blocked" to "ready".
4.6 AC Busbar Monitoring System
If the load voltage leaves the tolerance range, the load is switched
over to the SBS circuit without interruption. For this switchover, the
SBS must be in the "ready" operating status.
4.7 Temperature Monitoring System
Overtemperature is signalled by the red "collective fault" LED if the
heat sink temperature exceeds critical values. Acknowledgement is
made when it has cooled down.
Overtemperature can result from e.g. high ambient temperature,
constant overload of the SBS or from fan failure.
4.8 Monitoring of Functions
After connecting the input voltage, the self-test of the microcontroller
control system is carried out automatically.
4.9 Reset Button
The Reset button is used to acknowledge SBS faults. The Reset
button must also be pressed to accept the settings of the
DIL switches.