LEGRAND UPS, User Manual

Page: 45 / 164

UPS user manual
Manuel de l’utilisateur de l’ASI
Utilizzo dell’UPS
OMG38225 REV.B 45
8.1 OPERATING STATUS DEFINITION
Status S1 BOOSTER OK
Description The rectifier section is working properly.
Operating
condition
The rectifier supplies the inverter and keeps the battery charged.
Status S2 BATTERY OK
Description The battery is connected to the UPS.
Operating
condition
The battery is kept charged by the rectifier and is ready to feed the
inverter.
Status S3 INVERTER OK
Description The inverter voltage and frequency are within the allowed range.
Operating
condition
The inverter is ready to feed the load.
Status S4 INVERTER --> LOAD
Description The inverter feeds the load.
Operating
condition
The load is fed via the static inverter switch.
Status S5 INV BYPASS SYNC
Description The inverter is synchronized with the bypass.
Operating
condition
The synchronization between the inverter and the bypass is locked, and
the static switch can change over from one source to the other.
Status
S6 BYPASS OK
Description The bypass voltage and frequency are within the allowed range.
Operating
condition
The bypass line is ready for changeover in case of inverter failure.
Status S7 BYPASS --> LOAD
Description Load fed by the bypass line.
Operating
condition
The load is fed by the bypass via the static switch, waiting for the
inverter to restart.