As a result, the electronics continuously attempt to switch back to "online" / normal operating status (e.g. when the overload or overtemperature no longer applies).

The bypass is a mechanical link that switches extremely rapidly. It is located between the load and the mains. The associated synchronisation unit in the bypass ensures that the frequency and phase of the inverter voltage is synchronised with the mains.

The LED bar graph functions as display for USP i utilisation. The signal goes off during this

operations status every 2 seconds.

6.1.4Manual bypass

The manual bypass allows maintenance and service personnel to work on the PROTECT C. without switching of the appliance.

If the mains supply fails if the manual bypass is activated, the loads supply fails completely. For this reason, it is important to switch as fast as possible to normal operation mode.

6.1.5Unit Overload

The load on the UPS should never exceed the specified rated load of the unit. If a unit overload occurs nevertheless (from 105% of the specified unit rated load) the fault LED is turned on accompanied with a signal tone (twice per second). The connected loads continue to be supplied for a certain time

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