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Idiomas disponibles
Idiomas disponibles
UPS Enterprise Parallelism Procedure
5.5 PARALLEL CONNECTION OF THE INVERTERS
From the execution and verification of the procedures described on the previous pages, it is
possible to switch the system in parallel and connect the load following the next steps:
Close the reserve switch DJER.
Figure 5.17: Position of switch-disconnectors when the reserve line switch-disconnector closed
Repeat the operation above for all the other units of the system.
Close the output DJS.
Figure 5.18: Position of switch-disconnectors when the reserve line and output switch-disconnector closed
Repeat the operation above for all the other units of the system. Wait for around 30 seconds
before continuing the procedure.
Close the main input DJE.
Figure 5.19: Position of switch-disconnectors when the mains line, reserve line and output switch-disconnector closed
Repeat the operation above for all the other units of the system.
Turn on the inverters using the control panels. The UPS in which the inverter is turned on first
becomes MASTER.
Wait for at least 20 seconds for the automatic load transfer to the inverter from the reserve
input. (Green LED lights up on the LCD display).
Turn off the battery bank.
46 | Enterprise
Mains line
Reserve
OFF
ON
Mains line
Reserve
OFF
ON
Mains line
Reserve
ON
ON
M-Bypass
Output
OFF
OFF
M-Bypass
Output
OFF
ON
M-Bypass
Output
OFF
ON
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