Kohler EKOZD Series Service page 244

Note: The generator order in the examples above
matches the generator numbers for simplicity, but
it is not required or even customary for the
Start/Stop order of managed generators to match
their generator numbers.
13.2.2 Control Approach
The Decision-Makerr 3500 controller uses Individual
Generator Management. This means that each
generator controller manages only the generator that it
controls. Individual Generator Management allows for
improved scalability, more seamless redundancy, and
Figure 13-10 Comparison of Generator Management Topologies
The two systems operate very similarly, but the
individual approach has no single point of failure for the
system. The centralized system relies on the Generator
Management Controller to issue the start signal to each
generator—hence, a
Management Controller could prevent the system from
244 Section 13 Generator Management Information
failure in the Generator
more comprehensive fault handling than centralized
Generator Management.
Individual Generator Management controls each
generator without need
routing—the communication between the generators is
required for load sharing and first-on logic. Centralized
Generator Management requires connection of Start
and Unload signals to the generator controllers,
interruption of the external start signal, and an additional
module.
Figure 13-10 outlines the differences between these
two types of Generator Management.
responding to a start signal. The individual approach will
only lose one generator if a controller fails.
for additional signal
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