Eaton 93E Operation Manual

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UPS System InstallationEaton 93E UPS (300/400 kVA, 380/400/415V) Installation and Operation Manual 4-114.7 Installing a REPO SwitchBefore installing a REPO switch, verify that the UPS was installed according to theinstructions in paragraphs 4.3 through 4.6.NOTE 1A latching-type Remote Emergency Power-off (REPO) switch can be used in an emergency to shut down theUPS and remove power to the critical load from a location away from where the UPS is installed. shows aREPO switch.When installing the REPO switch, you must install conduit between the device andthe UPS cabinet for wiring the switch.NOTE 2The REPO switch must be a normally-open or normally-closed latching-type switchnot tied into any other circuits.NOTE 3This procedure is intended for installing the Eaton-supplied REPO switch. Ifinstalling another manufacturer's switch, use this procedure, and Figure 4-8 andFigure 4-9 as a guide.NOTE 4The REPO switch wiring must be in accordance with local regulations.NOTE 5To Install a REPO switch:1. Verify the UPS system is turned off and all power sources are removed. See Chapter 6, “UPS OperatingInstructions,“ for shutdown instructions.2. Securely mount the REPO switch. Recommended locations include operator's consoles or near exit doors.3. To locate the appropriate terminals and review the wiring and termination requirements, seeparagraph 3.2.3, Table 4-3, Figure 4-3, and Figure 4-7.Figure 4-7. REPO Terminal Block Connector AssignmentsTable 4-3. REPO ConnectionsREPO Terminal Description1 Input: normally-closed dry contact used to activate UPS EPO from a remote switch.23 Input: normally-open dry contact used to activate UPS EPO from a remote switch.UPS System InstallationFigure 4-19. REPO Terminal Block Connector Assignments4. Route the REPO wiring to the terminal block:a. If not already removed, remove the power terminal cover right and left sides (see Figurethe cover top and hardware for later use.b. If not already removed, remove the power terminal cover top. Retain the cover top and hlater use.c. Remove the screws securing the top rear panel (see Figure 4-10). Supporting the panel, tTable 4-3. REPO ConnectionsREPO Terminal Description1 Input: normally-closed dry contact used to activate UPS EPO from a remote switch.23 Input: normally-open dry contact used to activate UPS EPO from a remote switch.4NOTE The two upper fans are attached to the top rear panel.Normally ClosedREPO ContactsNormally OpenREPO ContactsUPSal Use OnUPSNormally ClosedREPO Contacts Normally OpenREPO Contacts4. Route the REPO wiring to the terminal block:a. Route the wiring along the interface wiring channel until the wire clears the shelf.b. Route the wire along the shelf under the interface housing to the wiring access .