LEGRAND BSK93, Operating Manual

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UPS user manual
Manuel de l’utilisateur de l’ASI
Utilizzo dell’UPS
34 OMP06263 REV. B
5.3.3 Resetting the history log
The history log can be reset by entering the
RESET HISTORY
section; the operation requires a
further confirmation.
Loss of data
The alarms history contains very important data to monitor the device behaviour over
time. We recommend to save the data before deleting it.
5.3.4 Modifying the operating mode – ECO MODE
The section
ECO MODE
allows the modification of the UPS operating mode, from the VFI –
Voltage Frequency Independent operation (on-line double conversion) to VFD – Voltage
Frequency Dependent. In such mode the load is directly supplied by the AC and the inverter is
turned on, ready to take over in case of anomalies of the mains. The transfer occurs in a
maximum time of 10 ms.
The stability of the AC mains is controlled bu a specific algorithm which provides to
automatically de-activate the
ECO MODE
mode in case the voltage or frequency are not
compliant with the programmed requirements.
Modifying the UPS operating mode – ECO MODE
The modification of the UPS operating mode is reserved to skilled personnel.
Before setting the system in
ECO MODE
verifiy that the load is suitable for operating
in such mode, and that it withstand voltage interruptions for a maximum duration of
10 ms.
It is recommended to operate under the supervision of manufacturer's personnel or
following its specific indications.
The manufacturer cannot be considered liable for any damages due to incompetence
or inexperience of the customer's authorized personnel.