[TG] EV-100 / Low battery

[Tom - Raymarine - Moderator]

Hi Andreas,

When you press Auto, the pilot 'locks' the heading that you were on at time, but won't start to make course corrections until there's a difference between the current and locked heading values. It sounds to me as if the delay you're seeing is when the pilot is not making a course correction, but once it does, the current peaks, dips the supply voltage at some point in the system and then you get the alarm.

The thing to disconnect is the wheeldrive, not rudder position sensor. I'd disconnect the two wires at the Motor terminals on the ACU100, to see whether/how that changes the symptom. Of course that's not going to fix the pilot, but if the alarm goes away (and is replaced by a Drive Stopped, Motor Stalled or Off Course alarm instead), then that suggests that the trigger for the Low Battery alarm really is the load drawn by the drive. Leaving the wheeldrive connected to the motor terminals on the ACU100 but leaving the wheeldrive's clutch disengaged would be another, subsequent test I'd do.

Regards,
Tom