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34006452EN/AC - Page 20
Control panel
3.2 Hidden control panel
Hidden control panel
(cellules onduleur et "Normal-secours")
Clear fault log
Buzzer reset
Battery charge cycle
Return to float charge
Security button
Mains 2 synchronization or desynchronization
The hidden panel, located behind the hinged cover, offers the following indications and control functions:
– environment faults;
– general faults in system modules;
– special control buttons (see figure 24).
This panel is identical for all types of cubicles, however, the controls or indications that do not concern a given cubicle
are not activated.
Fig. 24
This button clears the alarms stored in memory. The memory may not be cleared until the cause of the alarms
has ceased.
This button stops the buzzer. A new fault starts the buzzer again.
This button starts a battery charge cycle (vented lead-acid batteries only). The cycle duration may be programmed
(default value is 24 hours). Then the RC automatically shifts to "floating" mode.
This button can be used during a charge cycle to force the RC to return to "floating" mode.
This button avoids inadvertent operation of the remaining three control buttons:
– Mains 2 synchronization or desynchronization;
– forced transfer to inverter with load interruption;
– forced inverter shutdown with load interruption;
When pressing one of the above three buttons, the security button must also be pressed at the same time.
This button desynchronizes or resynchronizes the inverter output frequency with that of Mains 2.
Note:
– for parallel-connected modular UPSs, this function must be carried out on all the UPSs.
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