Meta System ARCHIMOD 100, Operating And Maintenance Manual, Page: 61 / 72

9-2
Operating and Maintenance Manual
Maintenance
code 504275001 Rev. September 2010
9.3 PERIODICAL CHECKS
Correct operation of the UPS must be guaranteed by periodical maintenance inspections, es-
sential 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 Meta System S.p.A., 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 fol-
lowing:
- 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.
9.3.1 Preparing the UPS for maintenance. Forced bypass mode
WARNING
It is strictly forbidden to change the power modules if first the following instructions have
not been scrupulously complied with!
1. Open the door of the UPS ARCHIMOD
®
;
2. Enable the UPS forced bypass operation via the front display.
To do this, proceed as follows:
Config. UPS g Bypass g Forced Mode Config.;
In these conditions the power modules are excluded and the load is fed directly by the
mains.
When the unit is in the forced bypass mode, the wording UPS METASYSTEM on the front
of the panel flashes quickly. Likewise, the LEDs on the various power modules also flash
quickly.
3. Turn the manual switch S1 (manual bypass) round to the ON position. The load is now being
powered directly by the mains; the wording MANUAL BYPASS appears on the panel.
4. Turn the unit off, holding the ‘ON/OFF’ pushbutton down on the control panel for a few
seconds;
5. Open the output switch S2;
6. Open the mains disconnecting switches (F L1, F L2 and F L3);
7. Open the battery disconnecting switches (F B+ and F B-) of the unit and of the
ARCHIMOD
®
BATTERY units (if present);
8. Hold the “ON/OFF” pushbutton down on the control panel in order to discharge internal
capacities.