[DG] [DG11] 400G AST, ST6001+ auto pilot system malfunctioning

[nscott54]

I am now in the process of installing the ACU400, ev1 and PS70S control head.

Please confirm whether:

1) the existing rudder reference transducer, as previously deployed with the to be retired 400g ast course computer, can remain and be connected to the new ACU-400, or do I need to swap that out for the new one that came with the EV-1/ACU-400/P70S kit?

2) it is sufficient to connect the ACU-400 dedicated drain conductor to the boat’s electrical bonding system, or alternatively to the negative bus at the dc panel? Or can the drain conductor just be jumped to the negative power connection, which essentially leads back to the same dc panel negative bus?

3) will it suffice to connect the EV-1/ACU-400/P70S/RS130 Seatalkng bus to the Seatalk bus via a Seatalkng/Seatalk converter connected to the nearest available Seatalk connected device?

Thanks,

Neil