SECOMP ROLINE ProSecure II 1000 VA, User And Installation Manual

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8
General description
As a double conversion on-line UPS, it is able to supply uninterrupted, clean single-phase power to your
critical systems while keeping batteries charged continuously, regardless of whether utility power fails or
not.
In event that a power failure lasts longer than a UPS backup time, it will shut down avoiding battery
discharge, and as soon as voltage comes back, the UPS will automatically charge up and start recharging
the batteries.
As shown in fig.1 block diagram:
l
An input filter reduces transients on the mains
l
For maintaining full battery charge, AC-power is rectified and regulated in the rectifier feeding power
to the inverter and battery converter.
l
DC power is converted to AC in the inverter passing it on to the load.
l
Power is maintained from the battery during a power failure.
l
The converter increases voltage appropriately for the inverter.
Fig.1. Block diagram
The Efficiency Optimizer function is a new feature for the UPS adding cost effectiveness, minimizing
power loss and reducing power consumption. Alternating between bypass and on-line modes is achieved
automatically and in accordance with the conditions of the utility power. On-line mode may be used
during times of intermittent power supply, and bypass mode when power flows smoothly in order to
obtain greatest efficiency. Irregularities can be detected in less than a second, and on-line mode
reactivated immediately. Switching back to online mode occurs when input voltage is outside ±10% or
nominal (±15% selectable), when input frequency is outside of ±3Hz or when no input line is available.
Although high efficiency is standard, the default operation is in on-line mode. Bypass can be activated in
the LCD panel, though on-line can be run permanently if preferred.