Futtura EconoGrade EG1, Инструкция по эксплуатации

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Page 12
Test Next
Chg Dir Stop
Chg Dir Stop
Minimum PW 80ms
Up PlsWdth 35ms
Down PW 25ms
CAUTION:
THE FOLLOWING ITEMS WILL OPERATE THE
ACTUATOR DRIVE. BE CAREFUL WITH THEIR USE! MAKE
SURE YOUR AREA IS CLEAR.
Minimum Pulse Width - EG Series needs information about
the actuator system on your machine, as all actuator systems
are not the same. Here we are telling the system the signal
needed to move the actuator at its slowest speed. Pressing
the Menu (Test) button will enter you in to this routine. Your ac-
tuator will begin to move, use the Up/Dwn Buttons to increase
or decrease the signal to the actuator until you get a blade
movement of approximately 0.25 inches per second (1 inch in 4
Seconds). Press the menu button to change the direction, then
adjust the actuator speed for the opposite direction. When the
actuator speed is OK then press the menu soft key (Stop) and
these values will be stored. There may be a need to enter dif-
ferent values for up and down to balance the over all minimum
speed. This is due to gravity helping in the downward direction.
Valve Gain - The span of error between the onset of actuator
operation and the point at which the actuator is fully on is deter-
mined by the valve gain setting. In this case, the units dis-
played (percentage) are arbitrary, but higher numbers suggest
more vigorous actuator action. With the gain set to 100%, the
slightest error will fully open the actuator. This setting should
be left at 50% until after the Minimum Pulse width has been set
and the actuator is tested to see in which direction you would
like to adjust this setting. The higher the number the more ag-
gressive the actuator system. Conversely the lower the num-
ber the less aggressive the actuator system will be.
Balancing Servo Motor - These three settings as well as
Valve Gain are important in balancing the actuator servo. The
most important of the three is the valve dead-band, it must be
set to a realistic value that your machine’s geometry can han-
dle. The next in importance is the Minimum PW, this sets the
actuator systems slowest speed, if too fast the servo will never
have the ability to balance and control grade. The last setting,
Valve Cycle Time sets the over all actuator speed. If set too
high the actuator movements will be too large and the servo
will never be able to balance. Conversely set too low the actu-
ator movements will be too small, a balance servo will not be
achieved. A balance in these three settings while the machine
is working under it’s normal load should give you good hydrau-
lic control.
Note: Pressing the “Stop” soft key will turn off the valve
drive, and return you to the Minimum PW window. Also,
the valve will shut off automatically after 20 seconds with-
out any buttons being pushed.
35% Next
Valve gain
125ms Next
Valve cycle time
Test Next
Minimum PW 80ms
0.5” grade Next
Valve deadband