34001813EN/AE - Page 27
2. Installation
UPS units with separate normal and Bypass AC inputs
To access the connection terminal blocks,
see section 1.2.
1 - The earthing conductors must be
connected to the earthing plate of each UPS.
2 - Connect the three phases of the Normal
AC source to terminal block (16) in each UPS
unit.
3 - Connect the four conductors of the Bypass
AC source to terminal (61) in the bypass
cabinet.
4 - Connect terminal blocks (15) in each UPS
unit to terminal (60) in the bypass cabinet,
using cables with identical lengths and sizes.
5 - Connect the four load conductors to
terminal (62) in the bypass cabinet.
6 - Connect terminal blocks (14) in each UPS
unit to terminal (63) in the bypass cabinet,
using cables with identical lengths and sizes.
7 - Tie the cables down to the frames of the
UPS cabinets and the bypass cabinet.
8 - Put the covers back in place (see section
1.2).
The cables marked A must be identical,
i.e. same size and length.
Similarly, the cables marked B must be
identical, i.e. same size and length.
To avoid errors, it is advised to remove the handle on switch Q3BP (10) in each UPS.
N L1 L2 L3N L1 L2 L3L1 L2 L3
370 mm
N L1 L2 L3N L1 L2 L3L1 L2 L3
370 mm
N L1 L2 L3N L1 L2 L3L1 L2 L3
370 mm
N L1 L2 L3N L1 L2 L3L1 L2 L3
370 mm
14
16
15
14
16
15
Q4S
Q3BP
Q5N
L1
L2
L3
N
L1
L2
L3
N
L1
L2
L3
N
L1
L2
L3
N
60
61
62
63
14
16
15
14
16
15
17
18
17
18
17
18
17
18
AB AB
A
B
A
B
To
Normal
AC
source
To bypass AC source
To normal AC
bypass AC
To normal AC
bypass AC
To normal AC
bypass AC
To Normal AC
source
To Normal AC
source
To
Normal
AC
source
UPS 1
UPS 2
Bypass
UPS 3
UPS 4
To load
