Eaton 9E Installation And Operation Manual

Also see for 93E: User and installation guide Operation manual Installation and operation manual Installation and operation manual Instructions

Contents

UPS Operating Instructions6-22 Eaton 9E UPS (80-200 kVA, 380/400/415V) Installation and Operation Manual6.4.10 Using the UPS LOAD OFF CommandA UPS Load Off is initiated by the Load Off command on the UPS Control screen. The UPS LOAD OFF controlsthe UPSs output by powering down the UPS and de-energising the critical load.The UPSs (including Bypass) remains off until restarted.To use the LOAD OFF command:1. Select the CONTROLS symbol on the main menu bar on the UPS to be shut down. The System Controlscreen is displayed.2. Select UPS on the System Control screen.3. On the UPS System Control screen, select the NORMAL LOAD OFF or BYPASS LOAD OFFcommand depending on the UPS mode, then press the RETURN pushbutton.The Verify Action screen is displayed, providing a choice to proceed or abort the shutdown.CAUTIONAll power to the critical load is lost when the LOAD OFF is selected in the following step. Youshould use this feature only when you want to de-energise the critical load.4. Select Yes or no, then press the RETURN pushbutton.Selecting Yes will immediately shut down the UPS and de-energising the critical load. Selecting No willabort the shutdown.CAUTIONDo not attempt to restart the system after Load Off until the cause of the shutdown has beenidentified and cleared.6. To restart the UPS after pressing the LOAD OFF pushbutton, follow the procedure in paragraph 6.4.1 or6.4.2.WARNINGPower is present inside the UPS cabinet after the upstream input feeder circuit breakers areopened because of the installed external battery cabinet.5. If another UPS is to be shut down, proceed to that UPS and repeat Step 1 through Step 4.