UPS SYSTEM INSTALLATIONEATON Power Xpert 9395 UPS (1000–1100 kVA) Installation and Operation Manual 164201764 Rev 3 www.eaton.com/powerquality 4-274.9 Installing Interface ConnectionsW A R N I N GHazardous voltages are present near the user interface terminal area if the UPS is not totally disconnected.Use the procedures in the following paragraphs to connect the TB1, TB1 Battery,TB2, and TB3 interface connections.4.9.1 TB1, TB2, and TB3 Connections (Other than TB1 Battery InterfaceConnections)NOTE When installing interface wiring for TB1, TB2, and TB3 connections, conduit must be installedbetween each device and the UPS cabinet.NOTE Interface wiring must be installed from the top of the UPS cabinet.To install wiring to connections:1. Verify the UPS system is turned off and all power sources are removed. SeeChapter 7, “UPS Operating Instructions,” for shutdown instructions.2. If not already opened, unfasten the front door latch and swing the door open (seeFigure 4‐1 on page 4-2).3. If not already removed, remove the door. Remove the retaining screw locatedinside the door at the bottom hinge pivot point, then lift the door off. Retain thehardware for later use.4. Terminal block TB3 is accessible on the left side of the X-Slot communicationbay. To gain access to terminal block TB1, TB2, and the left interface entryconduit landing plates, remove the screws securing the top internal safety shieldpanel and remove the panel. Retain the hardware for later use (see Figure 4‐22on page 4-28).5. Remove the interface entry conduit landing plates to drill or punch holes (seeFigure 4‐16 on page 4-19).6. Reinstall the interface entry plates and install the conduit.W A R N I N GDo not directly connect relay contacts to the mains related circuits. Reinforced insulation to the mains isrequired.7. To locate the appropriate terminals and review the wiring and terminationrequirements, see paragraph 3.2.3 on page 3-22, Table 4‐1 on page 4-29, andFigure 4‐22 through Figure 4‐25.8. Route and connect the wiring.9. If wiring TB1 battery interface connections, proceed to paragraph 4.9.2; if wiringthe X-Slot connections only, proceed to paragraph 4.9.3; otherwise, proceed toStep 10.10. Reinstall the top internal safety shield panel and secure with the retainedhardware.
