Step 1. Remove the connector panel blank ( ), which is secured by two screws.Step 2. Insert the UPS Network Management Card into the slot.Secure the panel by tightening the twoscrews.Installation requirementsRecommended protective devices and cable cross-sections1. Recommended upstream protectionTable 1. Recommended upstream protectionNormal and bypass ACinputs not separate Separate normal and bypass AC inputsUPS modelNormal 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 (the battery). Isolate the UPSand check for hazardous voltage upstream and downstream during lockout-tagout operation. Terminalblocks might be energized even if the system is disconnected from the AC power source.3. Although the UPS does not contain anti-backfeed (ABF) relays, some backfeed protection is provided.For example, if some components are damaged in battery mode, the output voltage may feed backto the input. In this case, a current transformer (CT) is used to detect the bypass current feedbackvoltage. If a current backfeed fault condition is detected, the UPS will terminate the inverter output toavoid personal injury.4. Recommended cable cross-sectionsChapter 3. Installation 25
