Operator`s manual

2 UPS Operations
Powerware Plus 18 Operator'sManual(LTM-1336B)11
To transfer the load back to the UPS:
. Close(I)theinput breaker and battery breaker.
. Turn the Maintenance Bypass switch from on to off.
. Press the UPS On button and wait until the Normal indicator illuminates
indicating that the UPS is operating in Normal mode.
Local/Remote Emergency Power-Off
The Emergency PowerĆOff (EPO) feature disconnects the protected equipment from all
power sources by opening (O) the UPS battery breaker and the output breaker. The
EPO does not disconnect the UPS from the input AC power source.
To operate, press the Emergency PowerĆOff button located on the front panel of the
UPS (see Figure 3 on page 13).
 After the EPO button is pressed, the internal logic power supply is on if AC
power is present at the UPS input.
With the Emergency PowerĆOff feature, a Remote Emergency PowerĆOff (REPO) switch
can be wired to the UPS. This allows a normally open, pushbutton switch to be wired to
the UPS. This REPO switch can perform the same functions as the EPO pushbutton
located on the UPS front panel. See Electrical Installation" on page 43 for information
regarding its electrical ratings and installation.
After the EPO or REPO switch has turned off the UPS, you can restart the unit by first
opening (O) all the circuit breakers (input, output, and battery) and proceeding with the
system startup defined in System Startup" on page 24.