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

To transfer the critical load to the double conversion mode:1. In the home screen, press Controls.2. Select Service controls.3. Select Disable ESS.The UPS system transfers to the battery mode and then to the doubleconversion mode. If the power module is not available, the system remainsin the bypass mode and an alarm sounds. The green status indicator fornormal operation is illuminated. The UPS status is shown as UNITONLINE. The UPM status is shown as ACTIVE.7.3.7 Shutting down the UPS system and critical loadTo perform maintenance or service on the critical load, shut down the power tothe load by performing the following procedure:1. Turn off all the equipment that is powered by the UPS system.2. Perform the LOAD OFF procedure (see Section7.3.8).The input, output, and bypass backfeed contactors open, the batterybreaker or disconnect is tripped, and the power module is turned off.3. Open the UPS front door.4. If included in the UPS system, open the rectifier input switches.5. Check that the battery breaker is open.6. Close the UPS front door.7. Open the UPS input and bypass feeder circuit breakers.8. Repeat steps 3–7 for all the UPSs in the system.DANGERPower is still present inside each UPS cabinet until the upstream feedercircuit breaker is opened, and in case of a parallel system, the output isisolated or parallel units are shut down as well.7.3.8 De-energizing the critical loadInitiate a UPS system Load Off by pressing the Load Off button in the Controls >System Controls screen. This button can be pressed to control the UPS output.The Load Off button de-energizes the critical load and shuts down the UPSsystem. The UPS system (including bypass) remains off until it is restarted.1. Press Load Off.The shutdown screen appears, providing a choice to proceed or abort theshutdown.2. To shut down the UPS, press Load Off. To abort the shutdown, pressAbort.Eaton 93PM UPS 30–200 kVA User's and installation guide© Eaton Corporation plc 2017. All rights reserved. Revision: 005 Document ID: P-164000249 99 (126)