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Installing a Remote Emergency Power-Off Control
6. Remove the screws securing the internal panel covering the TB1 and TB2 terminal
7. If installing interface wiring from the bottom of the cabinet, proceed to Step 8;
8. Remove the screws securing the top internal safety shield panel and open the
9. Remove the screws securing the bottom internal safety shield panel and remove
10. To locate appropriate terminals and to review the wiring and termination
11. Route and connect the wiring as shown in Table 5-1 and Table 5-2.
12. If the normally-closed EPO contact is not used, connect the jumper wire between
Table 5-1. REPO Wire Terminations
From REPO Station(s)
Table 5-2. REPO
REPO switch rating is 24 Vdc. 1A minimum if supplied by user.
NOTE This switch must be a dedicated switch not tied into any other circuits.
5-2
blocks at the top of the UPS cabinet (see Drawing 164201535-8 starting on
page A-33).
otherwise, proceed to Step 10.
panel to gain access to the bottom wiring entry.
the panel to gain access to the bottom conduit landing plate.
requirements (see Figure 5-1 and Drawing 164201535-8 starting on page A-33).
pins 8 and 9 on TB1.
Terminal Board TB1 in UPS Cabinet
TB1-4
TB1-5
REPO
Switch
(NO)
Powerware
9390 UPS (40–80 kVA) Installation and Operation Manual S 164201535 Rev C
®
To Customer Interface
TB-7
TB-9
7 (NO)
Twisted
UPS TB1
Wires
9 (RTN)
8 (NC)
Remarks
Twisted Wires (2)
Twisted Wires (2)
14–22 AWG
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