Simrad ROBERTSON AP45 manual CD109 Course Detector

Page 7-2	Robertson AP45 Autopilot
	Trouble shooting

NAVDATA NOT REC.

CHANGE MODE

Check that the nav. receiver is turned on and set up properly (see manual).

POOR NAVDATA

CHANGE MODE

Poor reception conditions or improper set-up of nav. receiver.

WRONG DATAFORMAT

NAVRECEIVER

Wrong NMEA-format selected on autopilot or transmitted by nav. receiver.

All three messages indicate problems with reading the signals from the navigation receiver. If you are unable to cure the problem, after having checked all connections and the nav. receiver and autopilot set-up, consult the factory or main distributor.

MAGN.COMP. FAIL

SELECT SENS.TYPE

FLUXGATE FAIL

SELECT SENS.TYPE

GYROCOMPASS FAIL

SELECT SENS.TYPE

These alarms will be given when the autopilot is unable to detect a proper signal from the selected heading sensor. The reason can be a faulty sensor or wrong selection of sensor (See “Type of Heading Sensor”, page 6-4).

The alarm will also occur if no heading sensor is connected.

CD109 COURSE DETECTOR

a.Enter the DEBUG-mode (see page 7-5)and verify that the compass sine, cosine and reference signals are correct. If not, proceed to "b".

b.Check the cable and connector for open or intermittent connection. If found OK, proceed to "c".

c.Try a new CD109.

FLUXGATE COMPASS

a.Enter the DEBUG-mode (see page 7-5)and verify that the sine and cosine signals varies with the heading between approx. 0.5 and 4.5 volts. If not, proceed to "b".

b.Check all connections between the compass and the control unit. Check the cable for a possible brake in one of the wires. If found OK, proceed to "c".

c.Try another fluxgate compass.

FI100-40 FLUXGATE INTERFACE

a.Make sure the fluxgate compass is working properly by observing it’s repeater (if installed). If OK, proceed to "b".

Simrad Robertson AS

Egersund - Norway