UPS System InstallationEaton 93PM UPS (20–100 kW, 480V – 100 kW Frame) Installation and Operation Manual P-164000227—Rev 6 www.eaton.com/powerquality 4-17Figure 4-14. Relay Contact Terminal Block Connector Assignments4.11.2 Installing Battery Detect Interface ConnectionsTo install wiring:1. Verify the UPS system is turned off and all power sources are removed. See Chapter 6, “UPS OperatingInstructions,“ for shutdown instructions.2. If not already opened, open the front door by lifting the latch from the bottom and turning to the right(counterclockwise) and swing the door open.3. If wiring the battery detect connections using the inter-cabinet wiring access pass-through(line-up-and-match configurations), proceed to Step 4; if wiring the battery interface connections usingbottom entry access, proceed to Step 6; if wiring the battery interface connections using top entryaccess, proceed to Step 12.4. Pass-through Wiring. Route the battery detect wiring from the battery cabinet through the top UPSinter-cabinet wiring access pass-through to the UPS building alarm terminals. See Figure 4-6 for UPSwiring access information, and Figure 4-9 and Figure 4-10 for UPS terminal locations. Refer to the Eaton93PM Integrated Battery Cabinet Installation Manual – Large and Large High Rate, the Eaton 93PMUniversal Integrated Battery Cabinet Installation Manual-Large and Large High Rate, the Eaton 93PMIntegrated Battery Cabinet Installation Manual-Small, or the Eaton 93PM Integrated Battery Cabinet-SmallWelded IBC-SW (432V and 480V) Installation Manual, listed in paragraph 1.8, for battery cabinet wiringaccess information and instructions.Table 4-2. Relay Contact Connections and Wire TerminationsTerminal Name DescriptionRecommendedWire SizeSize of PressureTermination Tightening Torque1 Relay Contact NC Output: General purpose normally-closed (NC)relay contactTwisted Pair Wires#18 AWG #1430 AWG 2 lb in(0.22-0.25 Nm)3 Relay Contact Common2 Relay Contact NO Output: General purpose normally-open (NO)relay contactTwisted Pair Wires#18 AWG #1430 AWG 2 lb in(0.22-0.25 Nm)3 Relay Contact CommonNOTE 1 The UPS battery detect signal uses an UPS building alarm input to indicate an openbattery breaker.NOTE 2 Any pair of unused building alarm terminals may be used for the battery detectconnections.NOTE 3 Program the battery detect building alarm to read battery open and for normallyopen contacts.NOTE 4 If installing interface wiring connections between standalone cabinets, conduitmust be installed between cabinets.NOTE 5 Disconnect terminal block plugs from terminal blocks to wire plugs.UPS Relay Output1 2 3NO_OutNC_OutCom
