Kohler EKOZD Series Service page 231

Start Percentage
The Percentage of Rated Capacity on the paralleling
system (the generators that are running and are active
in Generator Management) above which a generator is
considered for starting.
Only a generator which is available, not running and is
enabled for Generator Management can be started by
Generator Management.
Generator Management uses the start percentage to
calculate the Start kW for this generator.
The Start Percentage should be set so that the
generator system starts enough generators that any
transient loading can be supported by the running
generators, or to keep an additional generator running
for redundancy. The default (80%) works for most
applications, but applications with large switching loads
may require a lower setting for the Start Percentage.
The Start Percentage should always be at least 10%
higher than the stop percentage.
Range: 0.00% - 100.00%
Default: 80.00%
Stop Percentage
The Percentage of Rated Capacity on the other
generators in the paralleling system (the other
generators that are running and are active in Generator
Management) below which a generator is considered
for stopping.
Only a generator which is running (in auto) and is
enabled for Generator Management can be stopped by
Generator Management. Generators running in RUN
(pressing the run button on the front panel) are not
considered for Generator Management (their capacity is
not counted toward supplying the load and they are not
stopped when not needed).
Generator Management uses the stop percentage to
calculate the Stop kW for this generator.
Note: The calculation is based on the capacity of the
other generators on the paralleling bus, as this
generator will not be providing power after it
stops.
TP-6953 7/19
The Stop Percentage should be set so that the
generator system keeps enough generators online to
supply any transient loading that the application may
demand (such as large chillers, air conditioners, pumps,
or bow thrusters), while allowing unneeded generators
to stop.
The Stop Percentage should always be at least 10%
lower than the start percentage.
Range: 0.00% - 100.00%
Default: 60.00%
Start Delay
A time factor that represents the time that Generator
Management will wait to start this generator if the load
on the running generators exceeds the Start
Percentage of this generator by 10% and all available
lower-order generators are running.
The Start Delay should be configured to ensure that
reasonable load spikes are handled without starting an
additional generator, while allowing a generator to start
if the increased load persists.
Range: 1 sec - 600 sec
Default: 30 sec
Stop Delay
A time factor that represents the time that Generator
Management will wait to stop a generator if the load on
the lower-order running generators drops below the
Stop Percentage of this generator by 10% and all
higher-order generators are already stopped.
The Stop Delay should be configured to allow
generators to stop quickly if they will not be needed, but
to prevent generators from stopping during a
short-duration light load on the paralleling system.
Range: 0 sec - 7200 sec
Default: 300 sec
Section 12 Paralleling System Information 231