Derivative Gain - To stabilize some machine control appli-
cations, it is necessary for the control box to know not only
whether the machine is at the desired slope or not, but how
fast the slope is changing and in what direction. This is known
variously as velocity or derivative (dv/dt) feedback. The control
box can vary the amount of velocity feedback added; choose
among: “High” “Medium” “Low” or “Off” This setting is to be left
at medium for 99% of all installations.
Auto Return - Is the time duration that it takes for the valve
to return the blade to the on-grade range after being manually
driven away from the laser light using the toggle switch. The
options available are in increments of 0.5 seconds with a range
from 0 (off) to 7.5 seconds. After the set time is expired, the
unit will move toward the last laser hit that it received. To dis-
able this feature set the time to 0.
Tilt Sensing On/Off - This is were you turn slope sensing on If
your system has the optional slope sensor feature. If Tilt Sens-
ing is set to Off the next menu will be Factory Settings.
Sensor Forward - To add exibility to the sensor mounting we
have added a forward axis selection to orient the sensor after
mounting. The label on top of the sensor shows a number
for each quadrant, enter the number that is facing the forward
direction of travel, this will orient the sensor axis. In the bottom
left corner the real-time slope is displayed, this will help in me-
chanically adjusting the sensor to zero (level) after making sure
the control surface is level before calibrating.
Filtering - Changing the ltering rate mathematically changes
the sensors viscosity. The slower the ltering setting the thicker
the sensor uid will appear. Depending on the machine and
the type of work, there will be a need to speed up or slow down
the sensor.
Factory Settings: All of the EG Series variables can be re-
stored to their default values with this window displayed. The
defaults are restored by pushing the Restore button. The val-
ues saved will be:
Filtering --I---
On-grade dead band 10mm
Horn Off
Height Adjustment -On-
Units of Measurement mm
Valve type P.T.
Minimum PW 100ms
Valve Cycle time 250ms
Valve Gain 50%
Derivative Gain medium
Auto Return OFF
Language English
Medium Next
Change Next
Change Next
1.2% Next
Derivative gain
Auto Return Off
Tilt Sensing On
Sensor 3 Forward
Filtering Next
Restore Next
FAST - - I - - - Slow
Factory settings
Page 9
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