Other Operations With Tokyo Keiki Pr-6000; Adjusting Method For Auto Steering (Auto Mode); Rate Of Turn (Rate); Rudder Angle Ratio (Rudder) - Furuno FEA-2107-BB Operator's Manual

30. Steering With TOKYO KEIKI Autopilot PR-6000
30.5

Other Operations with TOKYO KEIKI PR-6000

30.5.1

Adjusting method for Auto steering (Auto mode)

For the PID, the auto steering adjusting control knobs are weather control (AUTO/0-10), rudder ratio (1-9), rate of
turn (1-9), pilot watch (5-15) and rudder angle limit (5-35).
Selection between automatic ADPT or manual PID steering control is made by setting ADPT course keeping mode
(OPN/CNF). Lights ADPT and CNF/OPN are turned on.
If you select WEATHER PID control (0-10) you have manual PID control in use. Light PID is turned on.
30.5.2

Rate of Turn (RATE)

The optimum value of the rate of turn changes depending on the loading condition.
30.5.3

Rudder angle ratio (RUDDER)

The optimum value of the rudder ratio changes depending on the ship's speed.
30.5.4

Weather adjustment (WEATHER)

The weather adjustment becomes necessary when weather or sea state changes. It is a desirable condition that the
ship goes straight with a rudder angle as small as possible (a lower angle than 5 degrees is desirable) and few rudder
operations (less than 6 times a minute is desirable).
30.5.5

Course keeping mode selection (CNF-OPN)

Open sea (OPN) when economic condition is preferred. Course is kept with the least necessary steering, permitting a
little meandering such as when sailing on the open sea.
Confined (CNF) keeps the ship straight on course. Large rudder may be necessary.
30.5.6

Pilot watch (PILOT WATCH)

During auto steering, when the course deviation exceeds the value set as the pilot watch, this alarm rings.
30.5.7

Rudder angle limit (RUDDER LIMIT)

This is the adjustment to limit the rudder motion to the least necessary rudder angle during mode:AUTO steering.
30-20