7
CONSOLE INTERFACE PANEL
(continued)
toggle changes the setpoint for machine position when
automatic control is established. In manual mode, it
functions as a jog switch. The toggle switch is also used
as an increase or decrease switch for all control settings
and displays.
NULL SETPOINT SWITCH
Pressing the null setpoint switch selects the sensor’s
current position as its new setpoint position. It is also
used with the display offset switch to change the setpoint/
actual display reference position.
SETUP SWITCH
This switch is used to assist in adjusting the grade or
slope sensor to the desired machine position and to
reestablish setpoint/actual display reference values.
DISPLAY OFFSET SWITCH
Pressing the display offset switch while using the toggle
switch adjusts the setpoint/actual value being displayed
to any desired value, shifting the effective reference
point. Both setpoint and actual displays are changed
simultaneously. Holding this switch and pushing the null
setpoint switch will alternately zero the display offset or
zero the displayed setpoint.
SENSITIVITY SWITCH
Pressing the sensitivity switch while using the toggle
switch adjusts the controller’s sensitivity. Adjusting the
sensitivity changes the amount of machine position error
to get full valve drive but doesn’t change the valve drive
deadband.
AAAAAAA
AAAAAAA
NULL
SETPNT
7
SENSOR
GRADE/SLOPE
SET PNT/ACT
AUTO/MANUAL
STATUS
INDICATOR
SETTING AND
MESSAGE
DISPLAY
UP/DOWN
TOGGLE
SWITCH
PUSH
SWITCHES
FOR
CONTROL
SETTING
FUNCTION
SELECT
LED
CONTROL
MODE
SETUP
DISPLAY
OFFSET
SENSI-
TIVITY
DISPLAY
MODE
PUSH
SWITCHES
FOR
FUNCTION
SELECT
2 . 0 5 %
OPERATOR CONSOLE PANEL DIAGRAM
SETTING/MESSAGE DISPLAY DIAGRAM
SETPNT/ACT
7
SETPNT/ACT
SETPNT/ACT
£
SENSITIVITY
S:
1
Slope Setpoint 2.05%, No Display Offset
Actual Grade 22.52 in., No Display Offset
Grade Setpoint 3.00 in., Display is Offset
Control Sensitivity Value 6.7
1958
1959
