Lenovo RT8.0kVA Installation And User Manual

Also see for RT11.0VA: Installation and user guide

Contents

Procedure1. Remove the connector panel blank ( ), which is secured by two screws.2. Insert the UPS Network Management Card into the slot. Secure the panel bytightening the two screws.Installation requirementsRecommended protective devices and cable cross-sections1. Recommended upstream protectionTable 1. Recommended upstream protectionUPS modelNormal and bypassAC inputs notseparateSeparate normal and bypass AC inputsNormal AC input Normal AC input Bypass AC input5594-8PX(8k VA 3Phase)D curve – 50A D curve – 20A D curve – 50A5594-9PX(11k VA 3Phase)D curve – 63A D curve – 32A D curve – 63A5594-8KX(8k VA 1Phase)D curve – 50A D curve – 50A D curve – 50A5594-9KX(11k VA 1Phase)D curve – 63/70A D curve – 63/70A D curve – 63/70A2. RISK OF VOLTAGE BACKFEED. The system has its own power source (thebattery). Isolate the UPS and check for hazardous voltage upstream anddownstream during lockout-tagout operation. Terminal blocks might beenergized even if the system is disconnected from the AC power source.3. Although the UPS does not contain anti-backfeed (ABF) relays, some backfeedprotection is provided. For example, if some components are damaged inbattery mode, the output voltage may feed back to the input. In this case, acurrent transformer (CT) is used to detect the bypass current feedback voltage.If a current backfeed fault condition is detected, the UPS will terminate theinverter output to avoid personal injury.4. Recommended cable cross-sectionsChapter 3. Installation 25