CONFIGURATION AND CALIBRATION –Software Config.
Page 62 of 80
FFU Slow Speed Off Delay will cause the directional valve to remain
energized for a period of time after the controller has determined that
rudder has reached its final position. This value should be kept very low in
order to avoid inducing an overshoot of the desired position.
NFU Fast Speed On Delay is used to ensure that when NFU commands
are given the system will be allowed to first step through the slow rudder
movement before the high speed solenoid is energized. This setting is
similar to the FFU Fast Speed On Delay setting described above.
NFU Slow Speed Off Delay will ensure that the rudder is given time to
step down through slow rudder movement before stopping. When the
NFU input device is released the high speed solenoid will be turned off
immediately and the directional valve solenoid will be held on for this
amount of time. This setting should be long enough to allow for the step
down procedure but not long enough to cause excessive overshooting of
the desired rudder position under NFU control.
Enter the appropriate values in the Data Entry Blocks. When finished,
click the SET button before clicking the CLOSE button.
Autopilot Configuration Window
The Autopilot Configuration
Window consists of five drop
down lists. The first drop
down list allows for the
selection of Analog or On-Off
type autopilot interface types.
Review the available interface
types for the autopilot installed
and choose the appropriate
setting from the list. When
analog interfacing is used the
polarity of the autopilot’s
analog command signals can
be selected using the second
drop down list. When analog
interfacing is used the
sensitivity of the autopilot’s analog command signal can be adjusted using
the Analog Command Sensitivity list. If the autopilot commands a 20
degree rudder position and the rudder moves to 30 degrees then you will
want to increase the number of volts per degree so that the rudder will
stop at the commanded 20 degree angle. If the NFU Dodge function is
enabled then operation of a NFU input device that is connected to the
MCP will cause the rudder to move away from the autopilot’s commanded
position while in Autopilot Control mode. One the NFU device is released,
Doc No.: MAN01504, 20-02-06 DSC 100 & MCP 100 Manual
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