AEG 64500G-M Instructions d'exploitation télécharger pdf (Page 41)

This so-called passive redundancy protects against the total

failure of the voltage supply on the secured busbar; however,

in this operating mode, mains faults would directly affect the

load. As a result, the electronics continuously attempt to

switch back to "online" / normal operating mode (e.g. when

the overload or overtemperature goes away).

The bypass consists of an inverse-parallel thyristor stack and

functions as an extremely rapidly switching link between a

load and the mains. The synchronization unit ensures that the

frequency and phase of the inverter voltage is synchronized

with the mains and can therefore be switched over without

interruption (within the tolerance limits).

The bar graph LED functions as the display of

the UPS capacity utilisation. The acoustic signal

sounds every 2 seconds during this operating

mode.

6.1.4 Manual Bypass

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AEG 64500G-M Instructions d'exploitation Page 41