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suitable isolating facility outside the power supply unit, via which can be switched to idle. Danger of
fatal Injury!
•
WARNING - Residual voltage. Wait for 10 seconds before to operate on the device CBI2420A and
CBI485A.
5 CONNECTION
5.1 CONNECTION TERMINAL AND WIRING
The following cable cross-sections may be used:
Solid
(mm
2
)
Stranded
(mm
2
)
AWG
Torque (Nm)
Stripping Length
All In One
(Size)
In:
0.2 – 2.5
0.2 – 2.5
24 – 14
0.5 – 0.6 Nm
7 mm
Size 1 and 2
4.0
6.0
30 – 10
0.8 – 1.0 Nm
7 mm
Size 3 and 4
Out:
0.2 – 2.5
0.2 – 2.5
24 – 14
0.5 – 0.6 Nm
7 mm
Size 1 and 2
4.0
6.0
30 – 10
0.8 – 1.0 Nm
7 mm
Size 3 and 4
Signal:
0.2 – 2.5
0.2 – 2.5
24 – 14
0.5 – 0.6 Nm
7 mm
All types
Connection by the screw, type 2.5 mm2 or 4.0 mm2 terminal blocks. Wiring terminal shall be marked
to indicate the proper connection for the power supply. Use copper cables only, for supply connections,
use wires suitable for at least 75°C.
5.2 INPUT LINE SYSTEM
5.3 OUTPUT POWER CONNECTIONS: LOAD AND BATTERY
5.3.1 Normal connection
Typical application for All In One device, one output
for Load “DC Bus”, one Input / Output for connection
to the battery.
N°1 battery (12 Vdc) for CBI 12xx;
N°2 battery (12 Vdc) connected in Series for CBI
24xx;
N°4 battery (12 Vdc) connected in Series for CBI
48xx;
5.3.2 Parallel connection “Redundancy”
Parallel connection “Redundancy”
Power supplies can be paralleled in case of
redundancy concept, to obtain a higher system
reliability. Redundant systems may support N+1
redundancy to safeguard against single-point failures,
or to enable hot-swapping of a failed supply without
system impact. The simplest way is to put two CBI in
parallel. In case one power supply unit fails, the other
one is automatically able to support the load current
without any interruption. To separate completely the
hypothetical device fail, it is necessary add the
decoupling diodes which are included in the Redundancy Module MR220. Recommendations for building
redundant power systems: a) Use separate input fuses for each CBI. b) Monitor the individual CBI units
by three LED. Each unit has two relays: Mains or backup and Low Battery or Battery Replacement (faulty
situation). This feature reports a faulty unit; see Relay Contact Rating for any technical detail. c) When
possible, connect each power supply to different phases or circuits
