Voltage Connections - Kohler 8.5RES Service Manual

1
2
Controller Box Top View
1. Controller box location
2. Line circuit breaker
3. Load connection terminal L0
Figure 5-9 Circuit Breaker and L0 Terminal Location
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 5-10 by adjusting the engine governor
speed (parameter 4P) through the ADC controller.
See 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
engine speed to the operating frequency (50 or
46 Section 5 Component Testing and Adjustment
3
GM29253A-F
60 Hz) by adjusting the engine governor speed
(parameter 4P) through the ADC controller.
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 controller will revert to the previous
settings at the next startup if the changes
are not saved.
12. Stop the generator set.
Frequency Cut-In Frequency
60 Hz 57.5 Hz
50 Hz 47.5 Hz
Figure 5-10 Cut-In Frequencies
5.7.3

Voltage Connections

Generator sets are available from the factory connected
for 110/220 Volt 50 Hz or 120/240 Volt 60 Hz. See
Figure 5-11 for the factory connections.
8.5/12RES generator sets are not reconnectable.
LO (Neutral)
Ground
Load
Side
Line
Side
4 3 2 1
Stator Leads
60 Hz
L0-L1 120 volt
L0-L2
120 volt
L1-L2
240 volt
Figure 5-11 110/220 and 120/240 Volt, 3-Wire
Configurations
Readjust the voltage
Refer to Section 4.5 for
Model
LO
GRD
L2
L1
Factory two-pole
circuit breaker
50 Hz
110 volt
110 volt
220 volt
TP-5867
TP-6196 5/04