ABB AC 800M Manual page 98

Installing the CEX-Bus Interconnection Unit BC810/TP857
See Figure 31
Use the configuration which coincides with the requirements for availability,
redundancy and safety of your AC 800M controller system.
Do not connect the two CEX-Bus segments, separated with BC810, to each other
with CEX-Bus extension cable TK850.
The BC810 is powered either from the processor unit via the CEX-Bus or through
its external connector for power supply. This external connector can also support the
CEX-Bus with redundant power.
If the external connector is used in a redundant configuration of BC810, there are
two valid connection possibilities:
•
•
For obtaining redundant power supply, connect the external connector to the
SS82x voting device. For details of SS82x connections, see
SS823/SS832 Voting Unit
Source
In AC 800M High Integrity Controllers it is required that the external supply
input of BC810 is connected and that the power supply is strictly configured
either according to
change the configuration by way of for instance individual circuit breakers
between modules.
98
on page 100 and
Single power source (SD8xx or SS8xx) for the processor units and the BC810s
on both the segments (say, segments A and B). See
One power source (SD8xx or SS8xx) for the processor unit on segment A and
the BC810 on segment B, and another power source (SD8xx or SS8xx) for the
processor unit on segment B and the BC810 on segment A. See
page 103.
on page 176.
Figure 33
Figure 32 on page 101 for configuration examples.
on page 136. See also
or according to Figure 34
Section 2 Installation
Figure 33 on page 102.
Figure 34
Installing the
Powering from an External
and nor is it allowed to
3BSE036351-510 A
on