Kohler 20EORZD Manual page 59

1
Service-Side View
2
Generator-End View
(Shown with louvered panel removed)
1. Line circuit breaker location (unit shown with the circuit
breaker coverplate)
2. Load connection terminal LO
3. Ground connection terminal GRD
Figure 8-14 Circuit Breaker and LO Terminal
Location
TP-6359 7/08
5. Check and readjust the voltage if necessary.
6. Set the voltmeter to measure frequency. Adjust the
engine speed to the cut-in frequency shown in
Figure 8-15 by adjusting the governor as described
in Section 4.5.
7. Set the voltmeter to measure voltage. Adjust the
volts/Hz (parameter 3P) until the voltage level
measured by the voltmeter begins to drop. When
set, the generator (as load is applied) attempts to
maintain normal output until the engine speed
drops below the cut-in frequency set in step 6.
8. Set the voltmeter to measure frequency. Adjust the
3
engine speed to the operating frequency (50 or
60 Hz) by adjusting the engine governor.
9. Readjust the voltage gain (parameter 2P) until the
light flicker minimizes, if necessary.
10. Check the voltage.
(parameter 1P), if necessary.
11. Save the settings.
instructions.
Note: The ADC will revert to the previous settings
12. Stop the generator set.
GM39820-K
Frequency
60 Hz
50 Hz
Figure 8-15 Cut-In Frequencies
Readjust the voltage
Refer to Section 7.5 for
at the next startup if the changes are not
saved.
Cut-In Frequency
57.5 Hz
47.5 Hz
Section 8 Component Testing and Adjustment 59