OT2106A Electronic Engine Governor Speed Controller
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linkage between the actuator and the engine throttle;
(3) Signal: Speed
sensor installation space does not meet the requirements; incorrect wiring or
shielding problems;
2, If the system has been running for quite long time, the reason of malfunction is usually:
(1) Connectors loosing;
(2) Speed sensor loosing; the gap does not meet the requirements or damaged; mechanical linkage serious
wear and tear;
(3) Wire aging;
Check and confirm item above one by one, if the malfunction still exists, Please do as the following
procedure.
6.2 Typical malfunction
Typical malfunction list is shown in table 6-1.
Table 6-1 Typical malfunction and solution
Phenomena
Probable cause
Processing method
The
engine
cannot started up,
the actuator does
not move to the
start fuel supply
position
Governor power is
connected inversely or
too low.
Check whether governor power is connected inversely
or too low..
Actuators
does
not
respond on the input
signal
from
the
controller
If there is a voltage output between the terminal 9 and
terminal 10, but the actuator does not move, you should
check whether the actuator wiring is open or shorted.
Check whether the input resistance between terminal
9 and terminal 10 when the drive is not connected is about
35Ω.
Start-up fuel quantity
set value too low
Turn start-up fuel quantity potentiometer clockwise until
the engine starts
Check whether the actuator is installed correctly,
worn and well-connected.
