LEGRAND Trimod HE, Руководство пользователя

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Trimod HE
U
ser manual
17
Digital display and alarm display
Trimod HE is managed by one to four microprocessor-type command cards (according to the version) and it has a backlit
LCD alphanumeric display with twenty characters on four lines.
The display is incorporated in the front of the UPS were there is also a high-brightness functioning status indicator with
traffic light type green-yellow-red.
Five simple keys situated near the display enable the user to display the functioning data, set the functioning parameters,
analyse the status of the individual power modules, select the language in which the messages are to be displayed, start
the hot-swap mode and carry out a guided set of functional tests and procedures.
BCM - Battery Charger Module 3 108 51
The additional battery charger module works in parallel and in sync with the battery chargers in the power modules and
it is managed by the same algorithm that governs the recharging cycle. Every power module can provide up to 2.5A of
charge current. Every additional battery charger module provides up to 15A of charge current that are added to the
current of the battery chargers in the power modules. This guarantees a reduction of the charge time in installations
requiring long autonomies and increases the availability of the UPS after a black out. During functioning, the battery
charger module takes current from the input phase where it is installed. It is possible to install any quantity of BCMs as
long as there is at least one power module and enough empty slots in the UPS cabinet. All the information regarding the
functioning status of the BCM is given by the LED on the front of the module and by what is shown on the UPS display. The
battery charger module is managed by a microprocessor to optimize performance and reliability. Its use in conjunction
with batteries having capacities above 60Ah is recommended.
ECO MODE
One functioning mode of the Trimod HE UPS is called “eco mode”. With this mode it is possible to save energy while
guaranteeing uninterruptability of the power supply to the load connected. During the functioning in eco mode, the load
is powered directly from the electrical mains through the automatic bypass circuit inside the power modules. This means
that the output voltage and frequency are the same as the mains. The advantage obtained in the eco mode is a greater
electrical efficiency and consequently a reduction in consumption. If the output voltage leaves the window of tolerance
(-20% / +15% of the voltage set on the output), the UPS actuates its inverter stage and powers the load with the energy
stored in the batteries. The autonomy during the stored energy mode depends on the configuration of the UPS (nominal
power, battery capacity) and on the percentage of load applied. When the mains are back within the tolerance values, the
UPS switches automatically back to the eco mode. It is possible to change the functioning mode between on-line and eco
mode (and viceversa) both with the UPS on and with the UPS off (in this case entering the Service Mode).