Manual Bypass - LEGRAND KEOR HPE Manuel De Fonctionnement

and the load is switched to the bypass line (bypass operation). If the bypass line is not available
or is out of tolerance, the loads supply is interrupted as soon as the battery reaches the
discharge limit threshold (black-out).
As soon as the supply is restored, the rectifier will recharge the battery. In the standard
configuration, the loads are supplied again via static switch SSB when mains is available again.
The inverter is restarted when the battery has partially restored its capacity.
The system restart from the black-out condition can be customized based on the requirements
of the plant, in three different modes:
 Bypass
 Inverter
 Man. Inverter  the output supply is NOT restored automatically. The system
Picture 5 – Battery operation

3.3.5 Manual bypass

The manual bypass operation is necessary whenever the UPS functionality is tested, or during
maintenance or repair work.
Picture 6 – Manual bypass for functional checks
18 OMP06263 REV. B
UPS user manual
Manuel de l'utilisateur de l'ASI
Utilizzo dell'UPS
 loads are supplied as soon as the bypass line is available (factory
configuration).
 loads are supplied by the inverter (even if the bypass line is
available) when the battery voltage has reached a programmed
threshold, after the rectifier restart.
requires a confirmation to restart which can only be done manually
by the user via the front panel.