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Old 06-08-2020, 04:41   #1
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Location: Dartmouth, England
Boat: Boreal 52
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NMEA 2K link for Volvo....question:

Question re: Volvo Penta NMEA2000 gateway.

System: We have the Volvo NMEA2K gateway connected to our new D2-75 engine. Our engine start battery is shared by the windlass. Controlled by a relay, the windlass only operates when the engine is running. All good, so far.....

The problem is when hauling up the anchor, with the engine idling slowly forward, the way we typically do it, the NMEA Gateway transmits a "low start battery voltage" sentence to the NMEA backbone. This in turn sounds the alarm on our Furuno MFD. Very annoying! If I put the engine in neutral and goose the alternator revs, the alarm stops, but then, of course, I'm in neutral, and not using the engine to move forward to the anchor.

Is there any way to disable this sentence of the VP NMEA 2K Gateway? (I have plenty of redundant battery monitoring systems on the boat).

Thanks.
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Old 07-08-2020, 08:20   #2
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Re: NMEA 2K link for Volvo....question:

The low voltage alarm is being generated by the MDI system on the engine, and transmitted to your MFD via the NMEA gateway.

Within the VP system there are two parts to the alarm: the visual indication that you see within the tach LED window, and the audible alarm that you hear. I donít know if you can disable the alarm or not, but you can acknowledge the alarm and that will turn off the audible portion so the noise from the VP alarm wonít bother you. To acknowledge the alarm, press the multifunction button ( lower left) on the engine button panel.

Whether or not this will also control the audible alarm coming from the MFD, I donít know.....worth a try. Perhaps that can be controlled in the MFD setup menu.

Or I guess you could drive the windless from the house battery bank...
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