Eaton 93PM User And Installation Manual

Also see for 93PM IBC-L: User and installation guide Manual Installation and operation manual User and installation guide User and installation guide

Contents

7.3.2 Starting the UPS system in the bypass modeCAUTIONIn the bypass mode, the critical load is not protected from mains powerinterruptions and abnormalities.If the inverter output of the UPS is not available and the critical load needs to beenergized, perform the following procedure:1. Open the UPS front door.2. If included inside the UPS system, check that the rectifier input switchesare closed.3. Make sure that the battery breaker is closed.4. Close the front door.5. Close the UPS input feeder circuit breaker.6. Close the UPS bypass input feeder circuit breaker.7. Wait for the UPS control panel to become active and indicate logic power.8. Repeat steps 1-7 for each single UPS in the system.9. In the home screen, press Controls.The System controls screen appears.10. In the System Controls screen, make sure that the system status is shownas SHUTDOWN.11. In the System controls screen, press the Go to bypass button.The critical load is immediately supplied by the bypass source, in thebypass mode.The UPS system is now operating in the bypass mode. The yellow bypassstatus indicator is illuminated.7.3.3 Transferring from the double conversion mode to the bypassmodeCAUTIONIn the bypass mode, the critical load is not protected from mains powerinterruptions and abnormalities.To transfer the critical load to the bypass mode, perform the followingprocedure:1. In the home screen, press Controls.The System controls screen appears.2. In the System controls screen, press the Go to bypass button.The UPS system transfers to the bypass mode and the critical load isimmediately supplied by the bypass source. If the bypass source is notavailable, the power processor remains on and an alarm sounds.Eaton 93PM UPS 30–200 kVA User's and installation guide© Eaton Corporation plc 2017. All rights reserved. Revision: 005 Document ID: P-164000249 97 (126)