Operation Manual - Critical Power Supplies

BUZZERThe status and faults of the UPS are signalled by the buzzer, which will emit a sound modulated according to the operatingconditions of the UPS.The various kinds of sound are described here below:Sound A:Sound B:Sound C:Sound D:Sound E:Sound F:Sound G:The signal is emitted when the UPS is turned on or off using the relevant buttons. A single beep confirms power-on,activation of the battery test, cancellation of the programmed power-off. When the power-off button is kept pressed,the buzzer emits the sound A quickly four times, before confirming power-off by emitting a fifth beep.The signal is emitted when the UPS switches to bypass to compensate for the surge current due to the activation ofa distorting load.The signal is emitted when the UPS switches to battery operation before the battery low signal (sound D).Possibility of silencing the report (see paragraph “Graphic Display”)The signal is emitted during battery operation when the battery low alarm threshold is reached.Possibility of silencing the report (see paragraph “Graphic Display”)This signal is emitted in the presence of an alarm or lock.This signal is emitted if the battery overvoltage fault occursThis type of signal is emitted when the battery test fails. The buzzer emits ten beeps. The alarm signal ismaintained by the “batteries to be replaced” LED lights up.