32 TP-6842 9/21
1.13 Checking Generator Parameters
Note:
Changing these settings can damage your generator set and batteries. Always refer to the information provided by the battery
bank manufacturer for the correct voltage and charge current limits for your batteries. Contact an authorized Kohler distributor
or dealer for assistance if the settings need to be changed.
1.13.1 System Voltage
This should be set for the required output voltage to properly support the load and charge the battery. Refer to battery
manufacturer to correctly set the value. This value should not be confused with the voltage designation of the battery bank (four
12-volt batteries wired in series results in a 48V battery bank but the output voltage needed to charge the battery bank is 54V).
Faults and warnings related to voltage are based off this value. For example, for a 6VSG-48V, setting this value to 54V will result
in an output of the VSG to be 54V. This value relates to the recommended charging voltage specified by the battery manufacturer.
The output of a 6VSG-48V set at 54V will have an output of 6 kW; however, as you increase the system voltage, the output
drops below 6 kW due to the fixed rpm range.
Note:
Setting the system voltage to a higher value than the factory default setting will decrease the power output of the generator set.
A 6VSG set at the default system voltage will have an output of 6 kW. If the system voltage is set to a higher value, the output
current decreases. The available power output also decreases below 6 kW due to the limits on the engine speed. The graphs in
Figure 24 illustrate the effect of changing the system voltage.
Figure 24 Effect of Changing the System Voltage Setting
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