[DG] [DG11] Type 100 Drives to STBD, not PORT

[Derek - Raymarine - Moderator]

Hi Keith,
Thanks for the feedback, it is best to go back to basics.

Disconnect the peripherals to leave the pilot with control unit, fluxgate, rudder reference unit, control unit and drive unit.

You can now carry out a simple diagnosis of the pilot, for example, in STANDBY turn the wheel to port and starboard and make sure the rudder angle indicator shows the correct indication in the correct direction. If yes, then so good so far.

Next select AUTO and try 2 x +10, the rudder should move to Starboard several degrees, stop, then after a few moments, creep slowly to Starboard in small increments. Select STANDBY, then AUTO and repeat but input 2 x -10 and the rudder should move to port in the same way as it did to starboard. if this works - again all good.

If not, if the rudder goes the wrong way, reverse the motor leads into the computer, if the drive only goes in one direction, disconnect the motor connections from the computer, then temporarily dab the motor wires onto the incoming POWER connection, the pump should spin in one direction, reverse the polarity of the motor wires and the pump should spin in the other direction, if yes, then the Computer Power Amp has likely failed.

If the computer drives the pump in both directions, then reconnect the joystick and ensure the manual mode is correctly selected in the autopilot calibration, check operation of the joystick in both BANG-BANG and PROPORTIONAL mode. If it only operates the autopilot in one direction, either the Joystick is faulty or the joystick input to the computer has failed.

I hope this helps?
Regards
Derek