35
ENGLISH
MASTERYS
BC 60-80 kVA - Ref.: IOMMASBCXX06-EN 06
ENGLISH
9. ELECTRICAL OPTIONS
9.6. PROTECTION ON MAINS SUPPLY AND ON AUXILIARY MAINS SUPPLY
Activating UPS protection on the mimic panel:
access the
SERVICE
menu on the mimic panel (see the
SERVICE
menu sec-
tion) and set the
SET BACKFEED
parameter to
2.BYPASS-INPUT Alone
.
Cable and trunk schematic
9.6-1
UPS 3/3 with separate auxiliary supply
A
UPS
L11
Q2
L21
L31
N1
T2
B
M2
L11
L21
L31
N1
XB1
XB2
BKF card
L1
Q1
L2
L3
N
T1
B
M1
L1
L2
L3
N
Key
A
Distribution
panel
B
Remote coil switch
L1-L2-L3-N
Input power source
L11-L21-L31-N1
Backup power source
M1
Input power terminal board
M2
Backup power terminal board
T1
Remote
switch
1
T2
Remote
switch
1
Q1
Input power switch
Q2
Backup power switch
XB1
Connector on BKF PCB
XB2
Connector on BKF PCB
1
Remote switches - rated current
Model
T1
T2
60 3/3
125 A AC1
125 A AC1
80 3/3
140 A AC1
140 A AC1
9.7. PROTECTION ON A UPS WITHOUT AUXILIARY MAINS SUPPLY
Activating UPS protection on the mimic panel: access the
SERVICE
menu on the mimic panel (see the
SERVICE
menu section) and
set the
SET BACKFEED
parameter to
3.BYPASS-INPUT Common
.
Cable and trunk schematic
9.7-1
UPS 3/3 without separate auxiliary supply
A
UPS
L1
Q1
L2
L3
N
T1
B
M1
L1
L2
L3
N
XB1
BKF card
Key
A
Distribution
panel
B
Remote coil switch
L1-L2-L3-N
Input power source
M1
Input power terminal board
Q1
Input power switch
T1
Remote switch
1
XB1
Connector on BKF PCB
1
Remote switches - rated current
Model
T1
60 3/3
125 A AC1
80 3/3
140 A AC1
WARNING
The neutral connections on the UPS input or output are identical. Consequently there is no risk of high potential
when the input power supply is absent.
However, depending on the type of system connected to the output or in some failure conditions (earth leakage,
significant phase dispersion or in the case of non-insulated neutral systems), high potential can be detected. It
would therefore be necessary to install either adequate neutral switching or a protection system.
