Eaton Power Xpert 9395 UPS, Installation And Operation Manual

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UPS System Installation
Power Xpert
TM
9395 UPS (450–825 kVA) Installation and Operation Manual 164201725—Rev 10 www.eaton.com/powerquality 4-39
5. To gain access to terminal block TB1 and the interface entry conduit landing plate, remove the screws
securing the top internal safety shield panel and remove the panel. Retain the hardware for later use (see
Figure 4-24).
6. Remove the left interface entry conduit landing plate to drill or punch holes (see Figure 4-19).
7. Reinstall the interface entry plate and install conduit.
8. To locate the appropriate terminals and review the wiring and termination requirements, see
paragraph 3.2.3, Table 4-1, and Figure 4-24 through Figure 4-27.
9. Route and connect the wiring as shown in Table 4-2 and Figure 4-32.
10. If the normally-closed REPO TB1 connection in the UPS is not used, connect a jumper wire between
pins 1 and 2 on TB1.
11. If you are installing multiple REPO switches, wire additional switches in parallel with the first REPO.
Figure 4-32. Normally-Open REPO Switch Wiring
12. If required, install wiring from the REPO switch to the trip circuitry of the upstream protective devices. A
second contact block is provided on the REPO switch for this function (see Figure 4-31). The REPO switch
wiring must be in accordance with NEC Article 725 Class 2 requirements.
13. Reinstall the top internal safety shield panel and secure with the retained hardware.
14. Reinstall the front door removed in Step 4 and secure with the retained hardware.
15. Close the door and secure the latch.
Figure 4-33 shows the wiring connections if the normally-closed REPO contacts are used, and Figure 4-34
shows alternative methods of connecting a REPO switch if using another manufacturer's switch.
Table 4-2. REPO Wire Terminations
From REPO Station(s)
Switch Contact Block
(Either Block)
To Customer Interface
Terminal Board TB1 in UPS
Cabinet Wire Size Tightening Torque
3 NO TB1

3 Twisted Wires (2)
14

22 AWG
(0.75

4.0 mm 2 )
7 lb in
(0.8 Nm)
4 NO TB1

4
3 (NO)
UPS TB1
REPO
Switch
(NO)
Twisted
Wires
1 (NC)
NOTE REPO switch rating is 24 Vdc, 1A minimum.
NOTE T he REPO switch must be a latching-type switch not tied to any other circuits.
NOTE REPO normally-open and normally-closed return terminals are separated on the terminal board but are electrically in common.
2 (Return)
4 (Return)
3
4