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Close the output switch DJS.
Figure 5.37: Position of only the main input switch-disconnectors open
Repeat the operation above for all the other units of the system.
Close the main input DJE.
Repeat the operation above for all the other units of the system.
Open the manual Bypass switch DJBP.
Figure 5.39: Position of only manual bypass switch-disconnector open
Repeat the operation above for all the other units of the system.
Mechanically lock the manual Bypass switch DJBP of all devices.
Turn the inverter on using the control panel. The first device turned on will become the MASTER.
Repeat the operation above for all the other units of the system.
Wait for about 20 seconds for the automatic transfer of the load from the reserve line to the
inverter (green LED lights up on the LCD panel). After the load is switched to the inverter, turn
on the battery bank.
From this moment the system is in full operation.
5.11 REMOVING ONE OR MORE UNITS FROM THE PARALLEL SYSTEM
In order to remove one or more units from the parallel system without interrupting the supply
of the load, proceed as follows:
Transfer the Parallel System by the Manual Bypass, as indicated in
THE PARALLEL SYSTEM BY THE MANUAL BYPASS on page
cables from the units you wish to remove from the parallel system. Disconnect the optical fibers
from the units to be removed from the parallel system and perform the reconnection so as to
maintain the correct communication loop between the other units.
Mains line
Reserve
OFF
ON
Mains line
Reserve
ON
ON
Figure 5.38: Position of all switch disconnectors closed
Mains line
Reserve
ON
ON
UPS Enterprise Parallelism Procedure
M-Bypass
Output
ON
ON
M-Bypass
Output
ON
ON
M-Bypass
Output
OFF
ON
Section 5.8 TRANSFER OF
48. Disconnect the power
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