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5-1
EATON Powerware
®
9390 UPS (100–160 kVA) Installation and Operation Manual S 164201604 Rev B powerware.com
Chapter 5 Installing a Remote Emergency Power-off Switch
A latching-type 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 a REPO switch.
EMERGENCY OFF
UNINTERRUPTIBLE POWER SYSTEM
To UPS To Other Equipment
Figure 5-1. REPO Switch
NOTE
When installing the REPO switch, you must install conduit between the device
and the UPS cabinet for wiring the switch.
NOTE Remove the UPS cabinet top or bottom conduit landing plate to punch conduit
holes (see Drawing 164201604 -6 on page A-27).
NOTE The REPO switch must be a latching-type switch with a dedicated c ircuit.
1. Securely mount the REPO station. Recommended locations include operator’s
consoles or near exit doors. See Drawing 164201604-10 on page A-50 for
enclosure dimensions and wiring knockouts.
2. Verify the UPS system is turned off and all power sources are removed. See
Chapter 10, “UPS Operating Instructions” for shutdown instructions.
3. If not already open, unfasten the front door latch and swing the door open.
4. If not already removed, remove the doors. Remove the retaining screws located
inside each door at the top and bottom hinge pivot points, then lift the door off.
Retain the hardware for later u se.
5. Remove the screws securing the control panel door and swing the door open.
Retain the hardware for later u se.