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The WP30 is linked to the ATC600 external compass
via a connecting lead CMC-TP (not supplied), which
is wired to the WheelpilotÕs Green & White wires
and plugged into the Compass.
The CMC-TP is used purely to supply Corus data to
the WP30, and does not carry any power supply.
The ATC600 must always have itÕs own 12v power
supplied via a CPC02 or CPC05 Corus Power Cable.
5.3 Interfacing Via NMEA
The WP30 WheelpilotÕs state-of-the-art electronics
include a built-in NMEA processor, which means
that NMEA0183 compatible equipment can be con-
nected directly to the Wheelpilot, without any need
for a separate interface unit (Fig 5.13).
Due to the vast number of different manufacturers
and models of navigational equipment, Simrad can-
not guarantee correct operation and installation of
this equipment. Therefore, before connecting any
equipment to the Wheelpilot it is important that the
unitÕs manual is referred to with regard to interfacing
via NMEA.
When connecting to the WheelpilotÕs NMEA inter-
face, two wires are used - a DATA wire and a COM-
MON (Com) wire. These should be linked to the
Wheelpilot cable as follows:
It should be noted that some manufacturerÕs equip-
ment does not have a dedicated Common connec-
tion. In this case, the DATA connection will usually
be labelled NMEA OUT, and the NMEA Common
connection on the Wheelpilot (Blue) should be con-
nected directly to 0v (Black). If in any doubt, refer to
the manufacturer, or SimradÕs Product Support
department for advice.
If a navigational receiver (GPS etc) is connected to
the Wheelpilot, it can extract the NMEA sentences
necessary for the NavLock function to operate.
Other functions such as Sail To Wind may also be
available if NMEA0183 compatible equipment trans-
mitting the correct NMEA sentences is interfaced.
Fig 5.10 - Wiring connections - WP30
5.2 Electrical Installation
The Wheelpilot WP30 operates from a 12v DC sup-
ply. It is designed to be permanently wired into the
vesselÕs 12v supply using a six core cable which
also allows connection to NMEA and other data
sources. If required, a six-pin waterproof plug and
socket kit is available as a separate accessory (part
code SKT300).
The WP30 should be wired to the 12v power sup-
ply, NMEA data (where appropriate) in accordance
with Fig 5.10. A terminal strip is supplied with the
pilot for this purpose.
Important - If the vessel has more than one sepa-
rate battery bank, when connecting the WP30 to
the power supply always ensure that the
Wheelpilot and all interfaced equipment are con-
nected to the same battery bank, even though
they each have independent connections to the
switch panel. This is to avoid a possible voltage
drop between the interfaced equipment which
would render the equipment inoperative.
* Run the cable through the pedestal using a suit-
able grommet. If running the cable through the
deck use a good quality cable gland to prevent
water ingress (Fig 5.11).
* Use a suitable gauge cable if an additional cable
run is required to link the pilot to the power supply
(see Fig 5.12).
* Connect to the vesselÕs switch panel via a 10 Amp
fuse or breaker.
* Do not fit other electronic or electrical equipment
to this cable, or Òtap intoÓ the supply from a near-
by cable - always wire each piece of equipment to
its own breaker in the switch panel.
* Ensure all wire ends are tinned, and any connec-
tions are well made. Poor contact will result in loss
of torque from the Wheelpilot and slower speed of
response.
* If in any doubt, employ a qualified engineer to
install the equipment.
Fig 5.12 - Cable selection table
Core. Wired To
Red +12v DC
Black 0v
Blue NMEA Common
Yellow NMEA Data
(Green Corus)
(White Corus)
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