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3) Select to switch off one of the single machines or the parallel system:
Remark: After turning on in Line mode, all UPSs will transfer to INV mode; Turn
off: when turn-off is conducted under INV mode, all UPSs will simultaneously turn
off inverter and then transfer to the bypass mode, if the UPSs are turned off one
by one, all UPSs will simultaneously transfer to the bypass mode after the last
UPS completes turn-off action.