LEGRAND Archimod, Operating And Maintenance Manual

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Archimod®
Oper
ating and main
tenanc
e manual
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3. Technical description
3.1 Archimod® Technology
Congratulations on your purchase of a UPS Archimod® product froLEGRAND®.
Thanks to the UPS Archimod® your critical equipment will be always protected by a constant and reliable supply of
power.
LEGRAND® has developed a project that is both innovative and unique, creating Archimod®, the UPS with a power
range of 20, 40, 60, 80, 100 e 120 kVA capable of adapting itself at any time to the changing requirements of protected
loads: greater power, longer autonomy, reliability. The basic concepts of the Archimod® project are, in fact, modularity,
expandability and redundancy which, besides offering maximum safety, are also the guarantee of a considerable
economic saving.
Even the Archimod® BATTERY rack cabinet is modular with boxes for extremely simple maintenance and battery Hot-
Swap.
The Archimod® UPS guarantees the best load protection levels. This is possible thanks to a modular architecture that
has a 6.7 kVA single-phase power module as its basic element. The power modules are connected in parallel, phase
by phase, and should just one module fail only the power of that module on the phase involved is lost. The UPS is
controlled by 1, 2 or 3 boards, depending on the configuration. Each board can control up to 6 power modules. If one
of the control boards fails, only the modules it controls are turned off and made safe while the UPS carries on working
on-line with no interruption to the load.
Redundancy is therefore possible on a single phase (power module failure) and inside the UPS (control failure). Hot-
Swap replacement of the power modules is also possible, turning the control off as well as the set of modules connected
to it without having to power the load from the bypass line thus temporarily losing protection.
Even the modular Archimod® BATTERY boxes can be Hot-Swap replaced without having to put the UPS in maintenance
bypass.
Each control board is connected to a control panel with display - by means of which both UPS status and settings can
be checked - and to a communication interface with an RS-232 connection, SNMP, free contacts and accessories slot.
All UPS functions can be accessed from any control panel and it is also possible to communicate through any interface
installed: thus even these peripheral devices are redundant. In UPS installations where there are three separate single-
phase lines in output, each line can be separately software
controlled to privilege, for example, the autonomy of one of them when running on battery and install only the
necessary number of modules on each phase to have the power required. An input bypass
line separate from the mains input line will allow the bypass to be powered by a second power source (the neutral
conductors of both lines must be in common). In addition, the 20kVA and 40kVA models
can be configured freely - single or three phase - in output or input by appropriately configuring the terminal block
and by means of the software settings.
Cutting edge technology is used for the UPS hardware.
A sophisticated microprocessor control optimises UPS performance both on the Booster/PFC side and
on the output inverter. The battery charge curve has been studied to obtain maximum useful accumulator life and
greater autonomy when there is no mains power.
The electronic boards are entirely assembled on automated LEGRAND® lines and tested to ensure the highest possible
quality standards.
Each piece of equipment is tested by letting it work for a long time at full load before being packed and shipped to the
customer. All these measures contribute to the value of the Archimod® UPS over time.
3.2 Features
Power module
The basic module, supplying 6700 VA with an 0.8 power factor, is basically made up of the following functional blocks:
command and control logic (microprocessor controlled), rectifier/PFCr, inverter, booster, battery charger, automatic
bypass.
The power unit is the Plug & Play type to facilitate power expansion and all maintenance works.
Each module is paralleled with other identical ones until the UPS power wanted on each phase is reached.
The power modules are separate from each other and can work even if one malfunctions.
A multicolour LED with a traffic light code green-amber-red on the front of the module quickly shows the operating
state of the electronic unit.
The power modules are housed on shelves that can hold 3 modules, referred to as “tunnels” in the rest of this document.