AEG PROTECT 1 Series Operating Instructions Manual page 58

19. Now actuate the mains input miniature circuit breakers
(no. 2, p. 27/28) on each UPS one after the other. Move
them to the "ON" position.
20. Move the "maintenance switch" manual bypass
switches (no. 3, p. 27/28) on the back of each UPS
to the "UPS" position. Finally, fasten the covers on
each UPS again using the 4 respective screws that
were previously removed.
The voltage supply of the parallel operation
i
busbar now takes place via the integrated
electronic bypass switches of the UPS systems
used. Check this operating state on the display
panel of each UPS = Bypass (chapter 6.1.3).
21. Now actuate your central external manual bypass:
Switch from the "Bypass" position to "UPS operation",
i.e. connect your load busbar to the UPS parallel
operation busbar.
This is done using a manual bypass switch with
i
overlapping switching contacts without any
interruption in the load voltage, i.e. completely
interruption-free.
22. Now switch on the inverters of the UPS systems. To
do this, press the ON pushbutton of each UPS for
approx. 2 seconds one after the other.
After switching on, each UPS carries out a self-
i
test and synchronizes itself with the parallel
operation busbar, while the LED's for load and
battery state switch on and off consecutively in
increasing
synchronization of all inverters, the Inverter LED
on each UPS lights up a few seconds later,
whereby the UPS systems now work in parallel
normal operating mode and supply the parallel
operation / load busbar with UPS voltage.
The central external manual bypass switch must
be protected against accidental actuation. Never
actuate it when the UPS systems are in inverter
mode.
order. After
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the successful