Legrand ARCHIMOD HE 60 kVA [10/14] Control panel and display

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4.9 Hot Plug – Hot Swap

In redundant configurations the UPS must be able to supply and protect the load, also during the

replacement of faulty module and no bypass switch is needed.

In case of scalable configurations (empty power module slots in the cabinet), it must be possible to install

additional modules during normal run without switch the load on bypass and execute software settings.

4.10 Operation with a genset or as a frequency converter

The output frequency of UPS is synchronized with the mains input frequency. This synchronizing process

is guaranteed by the microprocessor control within a ±2% range of the nominal frequency (50 Hz or 60

Hz).

Out of this range, the UPS stops the synchronizing with the input frequency and guarantees a strictly

constant output frequency. (in this particular condition of asynchrony between the input and output, it is

absolutely essential for the automatic bypass to be disabled).

4.10.1

Genset

To achieve optimum operation in combination with generators or gensets, typically characterized by

frequency fluctuations exceeding the ±2% range, the UPS must have the possibility to guarantee

synchronism between the input and output frequency for even wider frequency ranges, not less than

±14%

Normally, when the UPS runs in synchronsm, the automatic bypass must be enabled.

4.10.2

Frequency converter

UPS can also works as a frequency converter, i.e. by working with a different input and output frequency

without any type of synchronism. In other words:

50 Hz input - 60 Hz output;

60 Hz input - 50 Hz output.

4.10.3

Asynchronous operation

As a consequence of characteristics 1.5.1 and 1.5.3, with the appropriate settings, the UPS can run in

asynchronous conditions generating to the output a constant frequency, within a maximum ±1% range

whenever the input frequency is variable.

This operating mode allows the UPS to work with imput Mains supply with extremely variable frequencies,

guaranteeing a constant output frequency at both 50 Hz and 60 Hz.

4.11 Data availability when UPS is Off

The UPS will allow the possibility to make settings, data readings and diagnostic checks also when it is

turned off, activating the display in a temporary service mode.

5 Control Panel and Display

UPS must be controlled by a microprocessor and must be equipped with a backlit

alphanumerical liquid crystal display (LCD), with 20 characters on 4 lines. This display is built

into the front part of the UPS where there is also an ultra-bright operating status indicator

which shows the operating status and any alarm conditions by means of a traffic light code.

Four simple buttons situated near the display allow the user to:

! display the operating data (ref. sect. 5.2 Misurements);