HIMOD_HP_MANUAL_vers0116_E
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OPERATING MODE
H
IMOD
HP
M
ODULAR
UPS
S
YSTEM
The HIMOD HP UPS System is intended to ensure a perfect supply voltage for the equipment connected to it, both with and
without a power supply network. Once connected and powered, the system generates an alternating sinusoidal voltage, with
stable amplitude and frequency, regardless of surges and/or variations affecting the electric supply.
The Modular UPS System features two types of cabinets: Modular UPS Power Cabinet and Modular Battery Cabinet, whose main
functions and features will be highlighted in this manual.
Every HIMOD HP UPS System appliance was designed and manufactured to be durable. It has however to be recalled that they
are electric power equipment and, as such, they require regular maintenance. Furthermore, some of the components have,
inevitably, a fixed life cycle, they must therefore be regularly checked and replaced, if the conditions requires it: in particular
batteries, fans and in some cases electrolytic capacitors.
It is therefore recommended that a preventative maintenance program is implemented and performed by specialized staff licensed
by the manufacturer.
Our Service Department is at your disposal for customizing preventative maintenance options to suit your requirements.
N
ORMAL
M
ODE
During the NORMAL MODE, the system operates in the On Line double conversion mode. This mode provides maximum
protection for the load, in fact the energy coming from the network (AC), after it is converted, is clean and stable in the output. The
load voltage supply is a perfect sinewave, with frequency and voltage independent of the incoming mains supply (VFI technology).
And more, in this operation mode the batteries are constantly kept in charged state.
B
ATTERY
M
ODE
When the AC power network is not within the pre-set tolerance, for example, in case of blackout or voltage or frequency
interferences, the system automatically switches to the BATTERY MODE operation collecting energy from the battery source.
When the AC network is clean and stable again, the system switches back to the NORMAL MODE operation.
The Power Walk-In function can be activated through the configuration software. This function allows, upon reconnection to the
network (following an autonomy period), a progressive absorption from it, in order to avoid stressing (because of the inrush current)
a generator unit installed upstream, if any. The duration of the transition mode can be set between 1 to 125 seconds. The default
value is 10 seconds (when the function is enabled). During the transition mode the required power is partially collected from the
batteries and partially from the network keeping the sinusoidal take-up. The battery charger is switched on again when the
transition mode ends.
A
UTOMATIC
S
TATIC
B
YPASS
M
ODE
During this operation mode, the load is directly powered by the AC supply, therefore, any input interference impact fully on the
load.
