We noted in our data that the amperage in flight was bouncing around a lot from + to - in about a 10 amp range (+7 to -3). After some searching online I called Vans. Gus said their RV-12 gives the same readings and the shunt is inline between master and load to produce the +60/-60 range limits that Dynon indicates in their install manual.
Searching the dynon forums and rotax forums it appears the output from the stator/regulator-rectifier combo on the rotax is pretty wild and wacky.
A call to dynon confirmed that they are seeing problems with this configuration and have tried some software things to smooth it out but there is no update on the way. In the meantime I'm assuming that some + amp readings, combined with about a 13.5 or better voltage, indicate the battery is charging.
-Neil
Searching the dynon forums and rotax forums it appears the output from the stator/regulator-rectifier combo on the rotax is pretty wild and wacky.
A call to dynon confirmed that they are seeing problems with this configuration and have tried some software things to smooth it out but there is no update on the way. In the meantime I'm assuming that some + amp readings, combined with about a 13.5 or better voltage, indicate the battery is charging.
-Neil