Modifications reserved Page 21/79OPM_SGS_USM_M40_M50_2US_V010.doc User Manual SG Series 400 & 500 UL S25.2 TABLE OF FUNCTIONS AND INDICATIONS ON CONTROL PANELKey to switch the Inverter ON ( I )NOTE !When eBoost™ Operation Mode is enabled, control of Inverterstatus and selection of the feed path is done autonomously by theUPS control logic.Therefore, Inverter ON / Inverter OFF commands are disabledwhen eBoost™ Operation Mode is enabled.Key for Inverter shutdown ( O )Press the key to transfers the Load to Utility.Keep pressed for 5 seconds to shutdown the Inverter.This key is also used as the EPO (Emergency Power Off) reset.NOTE !Inverter OFF command is disabled when eBoost™ Operation Modeis enabled.Key “Load Off”The key “Load Off” is protected by a transparent cover.By pressing it, you immediately separate the UPS from the Load.It is possible to activate the command “Load Off” using the following links:COMMANDS / TOTAL OFF REQUEST. See Section 6.5.`Home\CommandsCOMMANDSRESET TOTAL OFFREQUEST TOTAL OFFTo reset “Load Off”Restore the command “Load Off”by entering the screen:COMMANDS / RESET TOTAL OFFV For Parallel System:If “Load Off” is pressed on one unit connected to the parallel bus (switch Q1 closed),all the units are separated from the load.The “Load Off” reset must be done only on one unit connected to the parallel bus(switch Q1 closed).NOTE !Special care must be taken in using this command, in order toavoid accidental load disconnection.