WEG UPS 10 kVA Serie Manual Del Usuario página 48

UPS Enterprise Parallelism Procedure
5.3 FIBER OPTICS CONNECTION AND COMMUNICATION CHECK BETWEEN
DEVICES
In order to ensure the data transfer between all the units of the system, the optical fibers
must be connected to the devices (as shown below), creating a communication loop. For
better safety and physical protection, it is recommended to physically protect the fibers (e.g.,
conduit, electrical ducts, etc.).
UPS1
Control board
RX2 TRX2 RX2
In the first interruption, the
system is not interrupted
Close the UPS1 reserve input and check that UPS1 is in the MASTER mode
page 42).
Mains Res. Mains
line line line
DJE DJE
DJER
DJBP
UPS1
Manual
Bypass
DJS
Output Output
Figure 5.7: Position of switch-disconnectors when UPS1 reserve line switch-disconnectors closed and other switch-
Close the UPS2 reserve input and check that the UPS2 is in the SLAVE mode
page 43).
Mains Res. Mains
line line line
DJER
DJE DJE
DJBP
UPS1
Manual
Bypass
DJS DJS
Output Output
Figure 5.8: Position of switch-disconnectors when reserve line switch-disconnectors closed and other switch-disconnectors
42 | Enterprise
UPS2
Control board Control board
TRX2 RX2
Fiber optic communication loop
Figure 5.6: Fiber optic connection in a parallel system
Res. Mains
line line
DJE
DJER
DJBP
UPS2 UPSn
Manual
Bypass
DJS DJS
Output
disconnectors open
Res. Mains
line line
DJER
DJE
DJBP
UPS2 UPSn
Manual
Bypass
DJS
Output
UPS3 UPS4
Control board
TRX2 RX2
In the second interruption the system
switches to the reserve line
Res.
Mains line
line
DJER
OFF
DJBP
Mains line
Manual
Bypass
OFF
Res.
Mains line
line
DJER
OFF
DJBP
Mains line
Manual
Bypass
OFF
open
UPSN
(N MAX = 6)
Control board
TRX2 RX2 TRX2
(Figure 5.7 on
UPS 1
Reserve M-Bypass Output
ON OFF OFF
UPS 2
Reserve M-Bypass Output
OFF OFF OFF
(Figure 5.9 on
UPS 1
Reserve M-Bypass Output
ON OFF OFF
UPS 2
Reserve M-Bypass Output
ON OFF OFF