Onan MGKBC Series, Руководство по установке

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19
Changing Frequency and Adjusting Voltage
CHANGING FREQUENCY
Model MGKBC gensets may be configured to oper-
ate at 60 Hz or 50 Hz. To change the operating fre-
quency, remove the front access door and find wir-
ing harness connectors
P5 , P6 and P7 (Page 21),
which are located just behind the ignition coil. Con-
nect
P5 to P6 for 60 HZ or P5 to P7 for 50 HZ .
Note 1: When changing genset operating frequency,
make sure the line circuit breakers are suitable for
the new output. Replace them if necessary with ones
of appropriate rating.
Note 2: Check and adjust voltage as necessary after
frequency has been changed.
ADJUSTING VOLTAGE
WARNING
HAZARDOUS VOLTAGE! Touching
uninsulated live parts inside the genset or con-
nected equipment can result in severe personal
injury or death. For your protection, stand on a
dry wooden platform or rubber insulating mat,
make sure your clothing and shoes are dry, re-
move jewelry from your hands and use tools
with insulated handles.
Before adjusting voltage, make sure that proper
fuel, exhaust, raw water and battery connections
have been made and that the engine has the proper
levels of oil and coolant. See the Operator’s Manu-
al. Complete
Installation Checks and Startup
(Page 20) as far as possible. Disconnect all genera-
tor loads and connect accurate meters to measure
AC voltage and frequency.
Using Start Switch
1. Start the genset and let voltage and frequency
stabilize for 5 to 10 seconds.
2. Rapidly press START 6 times during the first
minute after startup to put the genset controller
into voltage adjust mode . The amber status
light will begin blinking about once every sec-
ond to indicate the change to voltage adjust
mode. The green status light will remain on.
3. To adjust voltage up , press and quickly re-
lease START . Voltage will increase approxi-
mately 0.6 volts each press and release.
4. To adjust voltage down , press and hold
START for about 1 second. Voltage will de-
crease approximately 0.6 volts each press and
release.
5. When satisfied with the adjustment, wait about
20 seconds for the amber light to stop blinking
and then press
STOP to save the adjustment.
6. Restart the genset and check voltage.
Using e-Series Digital Display
See the Operator’s Manual for details regarding the
e-Series Digital Display .
1. Start the genset and let voltage and frequency
stabilize for 5 to 10 seconds.
2. Rapidly press START 6 times during the first
minute after startup to put the genset controller
into voltage adjust mode . The green status light
will begin blinking about once every second
and the Display will indicate a Status change
from
Running to Volt Adj (Figure 7).
3. To adjust voltage up , press and quickly re-
lease START . Voltage will increase approxi-
mately 0.6 volts each press and release.
4. To adjust voltage down , press and hold
START for about 1 second. Voltage will de-
crease approximately 0.6 volts each press and
release.
5. When satisfied with the adjustment, wait about
20 seconds for the Display to indicate a Status
change from
Volt Adj to Running and then
press STOP to save the adjustment.
6. Restart the genset and check voltage.
Volt Adj
FIGURE 7. VOLTAGE ADJUSTMENT SCREEN
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