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Page 5-6 Robertson AP45 Autopilot
Installation
Simrad Robertson AS
Egersund - Norway
FWD
The RFC35NS (part no. 22083596) substitutes the Robertson RFC250 Fluxgate
compass. It comes with a “pigtail” cable that matches the Viking connector on the
RFC250 (extension) Cable part no. 20183554. The internal connection of the
“pigtail” cable is shown on Fig. 5-7. Heading output is on sine/cosine and
NMEA0183 formats.
Note!
On new installations together with AP45 you need the standard RFC250 Cable
part no. 20183554. Cut off the Viking connector at one end and replace it with the
AP45 AMP type connector (J2) as per Fig. 5-6.
An extra cable gland is supplied for a separate NMEA cable connection if required.
Disconnect the brown and blue wires to J1-2 and J1-1 and connect the separate
cable instead. See Fig. 5-7.
The RFC35NS contains a magnetic fluxgate sensor and great care should be taken
when deciding the mounting location.
To minimize the effect of heeling errors, installation on the fly bridge or in the
mast is not recommended.
Select a location that provides a solid
mounting place free from vibration and as
close to the vessel's centre of roll and pitch as
possible, i.e. close to the water line. It should
be as far as
possible from
disturbing
magnetic
influences such
as engines (min.
2 meters),
ignition cables,
other large metal
objects and
particularly the
autopilot drive
unit.
The RFC35NS compass must be mounted with the cable gland pointing aft.
Note!
The compass should be deck mounted to allow for mechanical alignment. The
compass face plate on the RFC35NS is the TOP. Never mount it upside down! Level
the sensor as close to horizontal as possible.
Use the supplied mounting kit and drill holes through the centre of the slots.
RFC35NS Fluxgate
Compass
Mounting