LEGRAND KEOR HPE 60 kVA Operating Manual page 1242

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 requires a
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
Manuel de l'utilisateur de l'ASI
 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.
confirmation to restart which can only be done manually by the user via the
front panel.
UPS user manual
Utilizzo dell'UPS
OMW07104 REV.A 17