Faults Related To Paralleling - Kohler 14RCA Manual

2.5.5

Faults Related to Paralleling

If the PowerSyncr Automatic Paralleling Module (APM)
is used with two 14 kw or two 20 kW generator sets,
additional faults and events related to the paralleling
system may be displayed on the controller and/or in
OnCue Plus. This section lists those faults and events.
Fault Text
Current A High Warning
Frequency High Warning
Frequency Low Warning
Reactive Power Low Warning
Real Power High Warning
Real Power Low Warning
Voltage L1-L2 High Warning
Voltage L1-L2 Low Warning
* Pressing OFF will stop the generator set.
Figure 2-4 Warning Messages (protective relay disconnect)
Fault Text Description
BusDeadLive The bus is measured to be dead when one of the
generators is supposed to be supplying voltage to the
bus (closed contactor)
BusLiveDead The bus is measured to be live when no generators
are connected to it (both contactors open).
CfgModelNum The two generators that are intended to be paralleled
have incompatible model numbers.
CfgSysVolt The system voltage of the two generators intended to
be paralleled is not the same. Because the system
does not know which voltage is correct, the generators
will not be allowed to start.
ChkngMeter This generator has paralleled to the other generator
and is verifying that the metering is connected and
establishing the connection direction.
ConCheckFail Failure to Auto-Discover APM connections.
ConChecking Performing APM connection auto-discovery.
ConNotDeterm APM connection auto-discovery is not complete. This
means that the generator does not know which
contactor is connected to it.
ContactorOk Successful auto-discovery of APM connections.
26 Section 2 Generator Set Operation
Description
Over Current
Over Frequency
Under Frequency
Loss of Field
Over Power
Reverse Power
Over Voltage
Under Voltage
See the installation instructions provided with the APM
for additional paralleling information.
Note: Contact an authorized distributor or dealer for
paralleling system
troubleshooting, or service.
When Active Warning
Delay, sec.
Paralleled 10
Paralleled 10
Paralleled 10
Paralleled 10
Paralleled 10
Paralleled 10
Paralleled 10
Paralleled 10
Possible Causes *
Bus metering V9A and V9B connections
to V9 of paralleling protection harness are
connected incorrectly.
Bus metering V9A and V9B connections
to V9 of paralleling protection harness
connected incorrectly.
Incorrect configuration of one of the
generators. Different generator types.
The paralleled generator sets must be the
same kW model. (i.e. two 14 kW or two
20 kW models.)
One of the two generators is incorrectly
configured.
Intermittent connections on RBUS network
wiring.
Status message appears the first time the
two generators are paralleled.
Wires 9A and 9B crossed between the
generators.
Wires 9A or 9B not connected
This generator has started in RUN, the
other generator is in OFF.
Generators not yet started in RUN with
other generator in OFF. See the APM
instruction sheet for instructions to
perform the auto-discovery procedure.
Auto-discovery was activated by placing
other generator in OFF and this generator
in RUN.
installation, startup,
Display Cleared On
Press AUTO or OFF *
Press AUTO or OFF *
Press AUTO or OFF *
Press AUTO or OFF *
Press AUTO or OFF *
Press AUTO or OFF *
Press AUTO or OFF *
Press AUTO or OFF *
TP-7092 8/18