Note: that either the “Stop” button, or the Power button
will turn off the valve drive, and return you to the Minimum
PW window. Also, the valve will shut off automatically
after 20 seconds without any buttons being pushed.
Valve Cycle Time - This screen will only be displayed as
part of the Proportional Time valve setup. This menu function
sets how often the valve pulses are sent to the hydraulic valve
called, hits per second. The range is 1 - 15 hits per second
and unit is in milliseconds, to calculate the hits per second
divide 1 by the milliseconds. eg.1 / 0.250 = 4 hits per-second.
The lower the number the more hits per-second, for most
hydraulic system starting at 100ms or 10 hits per second is
a good place to start. The faster you can hit the valve the
smoother it will seem to respond, the valve response will differ
for valve to valve, playing with this setting will show you your
valves limitations.
Proportional Current and Danfoss Valve Settings:
Proportional Time users proceed to the Valve Gain screen.
Minimum DC Pulse Width - This screen changes slightly
when the Proportional Current and Danfoss valves are select-
ed. It’s functions and procedures are exactly the same as the
Proportional Time routine except the units is in percent.
Note that either the “Stop” button, or the Power button will
turn off the valve drive, and return you to the Minimum PW
window. Also, the valve will shut off automatically after 20
seconds without any buttons being pushed.
All Valves Types:
Valve Gain - The span of error between the onset of valve op-
eration and the point at which the valve is fully on is determined
by the valve gain setting. In this case, the units displayed (per-
centage) are arbitrary, but higher numbers suggest more vigor-
ous valve action. With the gain set to 100%, the slightest error
will fully open the appropriate valve. This setting should be left
at 50% until after the Minimum Pulse width has been set and
the hydraulics tested to see in which direction you would like to
adjust this setting. The higher the number the more aggressive
the hydraulic system. Conversely the lower the number the
less aggressive the hydraulic system will be.
Test Next
Chg Dir Stop
Chg Dir Stop
50% Next
250ms Next
Minimum DC 35%
Down PlsDC 20%
Up PulseDC 35%
Valve 1 gain
Valve cycle time
Page 8
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