Critical PowerModifications reserved Page 62/91GE_UPS_USM_TLE_SUL_M16_M50_2bU_V010.docx User Manual TLE Series 160 - 500 UL S2BNOTE !Ensure the LED 1 (Rectifier) is lit before carrying out this procedure.It indicates that the DC-link 1 and DC-link 2 has reached 400Vdc (see screen MEASURES /Rectifier)!2. Connect the Battery to the UPS by closing the“External Battery Protections” and close, ifpresent, the “CB3 – External Battery switch”(option).NOTE !Before performing the next procedure (3) make sure that the LED 3 (Booster/Batterycharger) is lit.3. Insert the Inverter performing the command “Inverter ON".Perform the “Inverter ON” command from the screen:Commands 1 / Inverter / ON.• Soft-start of Inverter indicated with blinking LED 2 (Inverter).• At the end of Soft-start the LED 2 (Inverter) remains lit.• The Load is automatically transferred from Automatic Bypass to Inverter.• LED ALARM turns Off and the LED LOAD PROTECTED must be lit.The Synoptic Diagram must display the status“LOAD SUPPLIED BY INVERTER”.END OF PROCEDURE