Technical Information
Adjusting Crank Termination
(ESD-5556 only)
To protect the engine from harm the
CRANK TERMINATION
adjustment is factory set at full
CCW
[Lowest Setting]. To adjust
CRANK TERMINATION
speed setting, rotate the
CRANK
adjustment to full
CW.
Crank the engine and simultaneously turn the
CRANK
adjustment slowly
CCW
until the proper crank termination speed is reached. In operation, when the cranking
termination set point is reached, the green
CRANK LED
will illuminate. (Cranking has
terminated).
The
ESD-5556
is set for manual reset. To reinstate engine cranking, battery power must be
removed and then reapplied which will recycle the control.
Adjusting Overspeed
When the engine is running at the desired speed, push and hold the
TEST
button. Rotate the
OVERSPEED
adjustment
CCW
until the red
OVERSPEED LED
lights and the relay energizes. Current
to the actuator will be removed and the engine will shut off.
Release the
TEST
button. After the engine stops, press the
RESET
button or remove battery
power. Restart the engine and it will return to the original speed setting. The overspeed function is
now set to approximately 10% above the requested speed.
If a different value of overspeed setting is required, raise the engine speed to the desired
overspeed value, i.e. 115%. Rotate the
OVERSPEED
adjustment
CCW
until the red
OVERSPEED
LED
lights and the relay enginerizes.
WARNING
Always use the relay contacts provided to shut down the system by a means other than the governor or
actuator. It is recommended that an overspeed protection system be routinely tested and verified during the
scheduled service of equipment.
Governor Speed Setting
The governed speed set point is increased by a
CW
rotation of the
SPEED
adjustment control.
Remote speed adjustment can be obtained with an optional
5K Speed Trim Control.
(See
Diagram 1.)
Governor Performance
Once the engine is at operating speed and at no load, the following governor performance
adjustment can be made.
A.
Rotate the
GAIN
adjustment
CW
until instability develops. Gradually move the adjustment
CCW
until stability returns. Move the adjustment one division further
CCW
to insure stable
performance.
B.
Rotate the
STABILITY
adjustment clockwise until instability develops. Gradually move the
adjustment counterclockwise until stability returns. Move the adjustment one division
further to insure stable performance (270° pot).
