SOLA 4000 - Operation
2 Operating Modes Stand-alone Unit
2.3 Bypass Operation
The "Bypass Operation" mode is activated by an inverter failure or an overload
•The rectifier supplies dc power only to the battery.
•The static inverter switch SSI opens automatically after the static bypass switch SSB is closed.
•The load is supplied directly from the mains through the static bypass line.
2.4 Maintenance Bypass Operation
The "Maintenance Bypass Operation" mode is used to supply the load directly from the mains during maintenance or repair work.
•In this mode, the individual functional components are com- pletely separated from the load.
•Power for the load is supplied directly from the mains through the switch IBY.
2.5 Standby Operation
If an appropriately programmmed IPR pcb is inserted in the control electronic of the
•If the load is completely switched off, the inverter and the inverter static switch SSI, switch off and the UPS commutates to the bypass supply (SSB closes), thus saving power when the UPS is not needed.
•When the load is again switched on, the inverter automatically switches on and the inverter static switch SSI will commutate the load to the protected inverter supply.
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