Simrad ROBERTSON AP45 manual Robertson AP45 Autopilot Installation

Fig. 5-5

CD109 Course detector - Mounting

Robertson AP45 Autopilot	Page 5-5
Installation

The course detector is mounted on the ship's

magnetic compass to transmit a heading

signal to the control unit. The mounting

method will depend upon the compass design. The distance between the course

detector and the compass card depends upon the magnetic momentum of the

compass card magnets. A distance

of 70-90 mm for a magnetic moment of 1500-2000 cgs is therefore

recommended. For

adjustment of signal level, see “Course Detector Alignment”

page 6-2. If a non- Robertson supplied magnetic compass is

used, it is advisable to consult a qualified compass adjuster for mounting of the CD109.

For mounting instructions refer to Fig. 5-5. The course detector can be attached to the compass either by a 6 mm screw to the bottom of the compass bowl or by use of the tri-pod holder supplied with the course detector.

The course detector is also supplied with cable (1m) feed and plug. Socket and connector with bracket for extension cable are in the standard scope of supply. The extension cable is optional equipment.

The compass should be checked for free movement in the gimbals without stressing the detector cable.

The CD109 Course Detector is connected to J2 on the Control Unit, and the connection is shown on the Wiring Diagram (Fig. 5-23).

If the Course Detector is mounted up-side down on top of the compass, the sine/cosine signal on J2 pin 10 and 11 must be interchanged.

Simrad Robertson AS

Egersund - Norway