10
OPM-128/E
The speed of the engine was carefully adjusted at the
factory so that the generator produces the proper voltage
and frequency. For normal usage, the speed setting should
not be changed. If the generator is being run continuously
on a very light load, it is often advisable to lower the
operating speed slightly.
The engine will govern itself at full speed. Intentionally
overriding the governor and operating the generator at
low voltage may damage both the generator and any load
connected to it. Running the engine at excessively high
speeds results in high voltage, which may significantly
shorten the life of light bulbs and appliances being used, as
well as possibly damaging the engine.
CAUTION: EQUIPMENT DAMAGE
SPEED ADJUSTMENTS SHOULD ONLY BE MADE BY A
QUALIFIED SERVICE TECH. Whenever making any speed
adjustments, check the YourGen meter and be sure the
voltage and speed are correct.
Output voltage should be checked periodically to ensure
continued proper operation of the generating plant and
appliances.
Hz -
This is the measured frequency of the generator set. See the
table in the RPM section for an explanation of voltage and
frequency ranges under load.
V1 -
Output voltage of Line 1 (L1 on panel) to neutral. See the
Load vs. Output table for an explanation of voltage and
frequency ranges under load.
V2 -
Output voltage of Line 2 (L2 on panel) to neutral. See the
Load vs. Output table for an explanation of voltage and
frequency ranges under load.
V1-V2 -
Output voltage of Line 1 (L1) and Line 2 (L2). See the
Load vs. Output table for an explanation of voltage and
frequency ranges under load.
Hours -
This displays the total running hours of the generator set.
When the generator is turned off, the hours will remain
displayed. The display is run on a CR2032, ten-year battery.
Once the unit is running, the battery connected to the unit
will then supply the power to the YourGen meter.
Load Bars -
These bars indicate how much load is being used on Line 1
(L1) and Line 2 (L2).
= 1-25% = 25-50%
= 50-75% = 75-100%
It is good practice to monitor the YourGen Meter when
applying load.This will ensure the generator is balanced.
Balanced Unbalanced
YOURGEN
The WINCO YourGen meter allows you to see useful
information about your generator from the front panel
by displaying RPMs, Voltage, frequency, load, hours, and
maintenance reminders. It also has the ability to display
warnings if any parameter gets outside of normal operation
range.
Cycle Button ( ) -
During normal operation, the display will toggle through
on fixed delay. If you want to see any specific item, you
can press the cycle button to move it to that setting. Once
the display is selected, the delay before it starts toggling is
approximately 5 seconds. This button is also used to reset
maintenance reminders.
RPM -
The meter will display the RPMs of the engine. This number
is calculated based upon frequency and is not directly
measured from the engine. The engine-generator must be
run at the correct speed in order to produce the proper
electrical voltage and frequency.
CAUTION: EQUIPMENT DAMAGE
The output voltage should be checked to ensure the
generator is working properly prior to connecting a load to
the generator. Failure to do so could result in damage to
equipment plugged into the unit and possible injury to the
individual.
Operating Speed
All engines have a tendency to slow down when a load
is applied. When the electrical load is connected to the
generator, the engine is more heavily loaded, and as a
result, the speed drops slightly. This slight decrease in
speed, together with the voltage drop within the generator
itself, results in a slightly lower voltage when the generator
is loaded to its full capacity than when running no load.
The slight variation in speed also affects the frequency
of the output current. This frequency variation has no
appreciable effect in the operation of motors, lights, and
most appliances. However, electronic equipment and clocks
will be affected if correct RPM is not maintained. See Load
vs. Output chart.
Although individual units and models vary slightly, the
normal voltage and frequency of the engine-generator
described in this manual are approximately as follows,
under varying loads:
LOAD vs. OUTPUT
Generator
Load
Speed
(RPM)
Frequency
(Hz)
Voltage
120V
Recpt
240V
Recpt
None
3690
61.5
125V
258V
Half
3600
60.0
120V
240V
Full
3510
58.5
115V
230V
