NT888G MK2 AUTOPILOT OPERATING MANUAL
2.29 (iii) To calibrate Adaptive Autopilot Steering vs Speed (Continued):-
(f)
Enter controls menu by pressing
CONTROLS
key and ensure ADAPT
value box is highlighted. Exit the Adaptive calibration mode by
simultaneous 5 second operation of the
CONTROLS
and
LIMITS
keys
confirmed by normal operating display presentation.
(g) Use
the
‘CONTROLS’
key to display the CONTROLS menu and use
the rotary illumination (±) control to set the highlighted
ADAPT
box
condition to
‘ON’
.
The Autopilot system is now calibrated and set to work in the Adaptive mode but it
should be noted that entry to the ‘CONTROLS’ menu (
CONTROLS
key operation) will
permit manual intervention/update of any current control parameters (RUDDER,
COUNTER, YAW etc.) at any time if required.
2.30 Calibration of Adaptive Steering Performance vs Draft.
Adaptive mode calibration will normally have been completed based on an assumed
fully laden condition (per section 2.29 (iii)). The availability of Draft Input data permits
MINIMUM
draft (unladen state) characteristics also to be ‘captured’ for adaptive mode
use:-
(a)
Engage the Autopilot system (
ON
key) and manually adjust the PID
controls for optimum steering performance (sections 2.19 – 2.25 refer)
at the lowest realistic working speed likely for Autopilot control. Enter
the Controls Menu by pressing the
CONTROLS
key.
(b) Simultaneously
press
CONTROLS
and
LIMITS
keys for a period of 5
seconds to enter the Adaptive calibration mode confirmed by
ADAPT
followed by a highlighted
CAL1
message.
(c)
Use the rotary illumination (±) control to step through to calibration
parameter
CAL7
. (FIG 2.30 refers)
(d)
With the vessel at minimum operating speed and the Autopilot steering
performance optimised (sections 2.19 – 2.25) use the
CONTROLS
key
for 5 seconds to ‘capture’ the Autopilot control parameters/speed
correlation commensurate with this speed.
(e)
Repeat (c) and (d) at normal working and maximum speeds in the
unladen condition to calibrate
CAL8
and
CAL9
requirements
respectively.
(f)
Enter controls menu by pressing
CONTROLS
key and ensure ADAPT
value box is highlighted. Exit the Adaptive calibration mode by
simultaneous 5 second operation of the
CONTROLS
and
LIMITS
key
confirmed by normal operating display presentation.
(g) Use
the
‘CONTROLS’
key to display the CONTROLS menu and use
the rotary illumination (±) control to set the highlighted
ADAPT
box
condition to
‘ON’
.
The Autopilot system is now calibrated and set to operate in the Adaptive mode
taking account of Speed and Laden state (draft) input data.
