Borri B9600FXS, Product Manual

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OMD39088 rev F
6
1. UPS GENERAL DESCRIPTION
The UPS of the B9600FXS 400÷600kVA series is the type “ON LINE DOUBLE
CONVERSION” and is connected between main power and user loads (see picture 1).
As far as architecture and lay-out is concerned, this project is optimised with particular
care in order to make it suitable for applications where reliability and high performances
are fundamental for critical loads.
The UPS operation is optimised by microprocessor digital control and the IGBT
inverter is based on a high frequency PWM waveform.
The whole UPS is monitored by a DSP 32 bit microprocessor, implementing full
digital control of the system.
Procedures for power-on, power-off, switching to and from bypass are described step
by step on LCD display, so to help users to easily operate the UPS.
Results of electrical measurement, alarm, work condition, event log and battery state
are indicated real time on the display.
Picture 1 – UPS block diagram
The block diagram shows the UPS subsystems that will be analysed in the following
chapters:

Rectifier/Battery Charger (R)

Inverter (I)

Battery (B)

Static Switch: Static Inverter Switch (SSI) and Static Bypass Switch (SB)

External Manual Bypass (MB)