Kohler 20RESC Інструкція з монтажу та експлуатації - Сторінка 21
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5.3.2 Order of Operation
There are two methods for selection of the generator set
order of operation: runtime hours selection mode and
manual selection mode.
Runtime Hours Selection Mode
Pressing the Auto and Run buttons simultaneously will
place the generators in Runtime Hours selection mode.
In Runtime Hours mode:
The generator that has the fewest hours when the
D
start signal is received continues to run.
If the runtime on the running generator becomes at
D
least 12 hours greater than the runtime on the
stopped generator, they will switch roles.
The running generator will automatically cycle every
D
24 hours (by nature of the above).
Manual Selection Mode
Pressing the Auto and Off buttons simultaneously will
place the generators in Manual Selection mode. In
Manual Selection mode:
One generator always stops first. Press Auto-Off on
D
the generator that should always stop first. The other
generator set controller becomes the primary
controller.
If the load is too large for one generator, the other will
D
run as well.
If one generator fails, the other will start.
D
See
Auto-Off
Functionality,
D
information.
TT-1596
8/22
below,
for
more
Auto-Off Functionality
Pressing the Auto and Off buttons simultaneously will
cause the generator to attempt to unload and
disconnect from the bus. The generators go into manual
selection mode.
If the load is too high, the generator will wait until the
D
load decreases to stop the generator.
If the generator goes into unloading state, the
D
controller display indicates "Genset State Unloading".
After the generator has unloaded, the contactor for
D
that generator opens and the generator will either go
into cooldown or stop immediately, depending on the
engine temperature.
After the contactor for this generator is open (during
D
the stopping state) the other controller becomes the
primary controller. The primary controller does not
change until the acting primary disconnects from the
paralleling bus.
The ATS status lights blink off momentarily to indicate
D
that the primary controller has transferred (no
interruption in power will occur).
Pressing Auto and Off simultaneously is also used to
remove one generator set from operation for
maintenance or service, as described in the next
section.
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