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7.7. Emergency Power Off (EPO)
UPS output can be cut off immediately by EPO connection if desired. EPO connection is normally
open (NO), i.e. when the EPO connection is closed circuit UPS output cuts off.
In case EPO connection is used in distance; a latched switch can be used as described in below
figure. When UPS operates in Online Operation; the latch switch shall be normally open (NO).
Whenever any emergency occurs you have to make the switch closed to turn the UPS off. Line OFF
will be seen on the front panel. In case you start-up UPS again you have to turn off UPS first.
EPO switch should be placed where unauthorized people can not reach it. Unauthorized use
may cause the load be deenergized.
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