Modifications reserved
Page 42/103
OPM_LPS_33E_60K_M12_2GB_V010.doc
Operating Manual
LP 33 Series 60-80-100-120 kVA / S2
5.8.4
LP 33 Series - 60 kVA
- Power connection with separate input mains (option)
NOTE !
Neutral of
rectifier
input and neutral of
bypass
input must be coming from the
same input bar. Inside the UPS, neutrals
N1
and
N
are connected together
.
Load
X3
L1
L2
L3
N2
LPS33_0
60_S2_C
onnection
common
_01
Mains 1
X4
Battery
X1
L1
-1
L2
-1
L3
-1
N1
PE
-
0
+
PE
PE
Mains 2
X2
L1
-2
L2
-2
L3
-2
N
PE
Fig. 5.8.4-1 Terminals for separated input mains
X1 Mains 1
Rectifier input mains connection
L1-1
= Rectifier Phase L1
L2-1
= Rectifier Phase L2
L3-1
= Rectifier Phase L3
N1
= Neutral of Rectifier Mains
PE
=
Main
Ground
X2 Mains 2
Bypass input mains connection
L1-2
= Bypass Phase L1
L2-2
= Bypass Phase L2
L3-2
= Bypass Phase L3
N
= Neutral of Bypass Mains
X3 Load
Load output connection
L1
=
Load
Phase
L1
L2
=
Load
Phase
L2
L3
=
Load
Phase
L3
N2
=
Load
Neutral
PE
=
Load
Ground
NOTE !
Max. rating
X1 – X2 - X3 - X4
terminals
:
50mm
2
.
Input/output terminals must be tightened with a
proper screwdriver applying torsion force 2.5 Nm
.
LPS33_040-120_Connection battery_01
+
0
-
+
0
-
X4
PE
Fig. 5.8.4-2 External battery connection
X4 Battery
External battery connection
-
= Negative pole of the battery
0
= Central point of battery blocks
+
= Positive pole of the battery
PE
= Battery cabinet ground
WARNING !
Before closing the
“external battery fuses”
, verify for correct polarity of the battery
connection
.
NOTE !
To meet standards concerning electromagnetic compliance, the connection
between the UPS and external
Battery
must be done by using a shielded cable or
suitable shielded (metal) conduit!
This UPS is only designed to operate in a wye-configured electrical system with a
solidly grounded neutral.
If the UPS is equipped with an input transformer, the secondary of the
transformer must be wye-configured with neutral solidly grounded.