Briggs & Stratton 40336 Manual Del Operador página 24

Electronic Governor
The engine electronic governor system allows for
improved control and increased generator performance
compared to mechanically governed systems. The
result is smooth steady-state operation without the
"hunting" common to some mechanical governors.
The system also reduces speed variations under
engine loading and unloading and significantly reduces
frequency fluctuation experienced when the engine is
under higher loads.
The electronic governor system is composed of a
stepper motor (B), stepper motor throttle control
linkages (C), and throttle side linkages (A). The control
board contains a digital controller that processes
engine speed information and sends appropriate
commands to the stepper motor to control the position
of the engine throttle.
Since the electronic governing system controls the
engine throttle demand based upon generator load,
the following service codes and/or conditions may be
related to an electronic governing system issue:
• Engine Does Not Start
• Over Speed
• Under Frequency
• Unstable No Load Engine Control
While trouble shooting any of these conditions, a
verification of the electronic governor system can be
initiated through the control panel – advanced menu
options – Electronic Governor Check. Refer to the
Installation Manual for Advanced Menu Operation.
Electronic Governing Check:
The generator has an electronic governing check
feature that will turn on the stepper motor and move the
throttle linkage clockwise and counterclockwise within
the throttle limits. The test will rotate the stepper motor
and move the throttle arm between the wide open
throttle and dead idle limits 4 times with a 2 second
delay between each throttle sweep. This will allow
visual verification that the stepper motor is functioning
properly and the control linkages are connected. The
engine will not attempt to start during this test. If the
stepper motor does not move, or if a linkage binds,
then service may be required.
NOTICE If stepper motor does not move, please make
sure the stepper motor connector is attached.
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A
C
B