LEGRAND Archimod, Operating And Maintenance Manual

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WARNING
The instructions given in this chapter are not addressed to a normal operator but to a specialised technician,
authorised to work only if he uses the Individual Protective Gear mentioned in Chapter 4.
9.1 Introduction
This chapter contains all the information necessary for a correct maintenance of the UPS Archimod® unit.
All the operations described in this section must be carried out by authorised technicians or qualified personnel.
LEGRAND® is not liable for any injury to persons or damage to things caused by incorrect operations or activities if not
carried out according to the instructions given in this manual, with particular reference to the safety rules and regulations
that can be found in chapter 4.
To ensure optimum operation of the UPS Archimod® and continuous and effective protection of the load connected to it,
the batteries must be checked every six months after the first year of the machine’s life, via the battery calibration function
(see par 8.2.4).
9.2 Preventive maintenance
The UPS does not contain parts subject to preventive maintenance by the end user.
Therefore, with the exception of normal cleaning, all the user has to do is periodically check there are no alarms on the
display and that both fans on each power module are working correctly.
If there are any problems contact the LEGRAND® assistance centre immediately.
9.3 Periodical checks
Correct operation of the UPS must be guaranteed by periodical maintenance inspections, essential for safeguarding the
unit’s operating life and reliability.
WARNING
The periodical checks entail operations inside the UPS where dangerous voltages are present. Only maintenance
personnel, trained and authorised by LEGRAND®, know all the parts of the UPS that are live with dangerous voltages
and, therefore, authorised to work on them.
During a preventive maintenance inspection, the maintenance technician must check the following:
• there are no alarms;
• the list of any events stored;
• correct operation of the static and maintenance bypass;
• integrity of the electrical installation;
• flow of cooling air;
• condition of the batteries;
• characteristics of the load applied;
• conditions of the installation premises.
9.4 Hot-swap replacing of power modules or adding new modules
The Archimod® UPS allows any faulty power modules (Hot-Swap) to be replaced when they are hot.
This means that the load is powered by the UPS which still protects the user points without them being powered by the
bypass line. To do this the modules managed by the same control unit have to be turned off but the load will be powered
by the remaining power modules.
To use this function it is necessary for the UPS to be sized correctly. If the load percentage is such that the Hot-Swap
cannot be done without overloading, it is advisable to follow the maintenance procedure bypassing the UPS.
9. Maintenance