Powerware 9390 UPS 100160 kVA - Manual (Page 41)

EATON Powerware ® 9390 UPS (20–80 kVA) Installation and Operation Manual S 164201603 Rev 2 www.powerware.com 5-1
Chapter 5 Installing a Remote Emergency Power-off Control
A latching-type Remote Emergency Power-off (REPO) switch can be used in an
emergency to shut down the UPS and remove power to the critical load from a
location away from where the UPS is installed. Figure 5‐1 shows an Eaton REPO
switch.
Contact Block (Back View, Faceplate Removed) REPO Switch (Front View)
Figure 5‐1. Eaton REPO Switch
5.1 REPO Installation
NOTE Before installing a REPO switch, verify that the UPS was installed according to the instructions in
Chapter 4, “Installing the UPS System.”
To install a REPO station:
1. Verify that the UPS system is turned off and all power sources are removed. See
Chapter 9, “UPS Operating Instructions,” for shutdown instructions.
2. Securely mount the REPO station. Recommended locations include operator's
consoles or near exit doors. See 164201603-10 on page A-61 for enclosure
dimensions and wiring knockouts.
3. Install wiring from the REPO station using ½” conduit through the cable entry
knockout in the top of the UPS cabinet. See Appendix A for conduit landing area,
terminal board location, and terminal wiring assignments.
4. Connect the REPO wiring as shown in Table 5‐1 and Figure 5‐2.
Table 5‐1. REPO Wire Terminations
From Customer Interface
Terminal Board CUSTTB in
UPS Output/Inverter Cabinet
To REPO Station(s)
Contact Block
(Either Block)
Wire Size Tightening Torque
CUSTTB‐4 3 NO
Twisted Wires (2)
22–14 AWG
7 lb in
(0.8 Nm)
CUSTTB‐5 4 NO
Figure