Instruction manual

Instruction manual
23
E04596
Due to differing requirements from vessel to vessel, Simrad rec-
ommends that the appropriate cable is sourced to meet the ves-
sel’s specific layout. The recommended power cable sizes are
given in Fig 5.11.
The junction box is supplied with the SimNet cable pre-wired.
All other cables should be routed through the grommets in the
junction box and wired as shown (Fig 5.12). For information on
wiring see the colour-coded inlay within the junction box.
5.2 Electrical installation
The Wheelpilot operates from a 12v DC supply. The cable fitted
to the Wheelpilot is used to supply the power, SimNet and
NMEAdata via the junction box supplied (Fig 5.10) -
Length of
cable run
Under 4m
(13ft)
4-8m
(27ft)
Cross
section
1.5mm
2
2.5mm
2
Conductor
type
30/0.25
50/0.25
AWG
16
14
Fig 5.11 - Power cable
selection table
WP32
WP32
NMEA0183 In
12v DC
SimNet
Fig 5.10 - Wheelpilot junction box wiring
Junction box
Fig 5.12 - Junction box wiring
EXTERNAL
INPUTS
From WP32
Large Red (+12v) & Black (0v) wires
NOTE The large Red and Black wires from the WP32 must be con-
nected to +12v and 0v, respectively (see Fig 5.12).
IMPORTANT If the vessel has more than one separate battery bank, when
connecting the Wheelpilot to the power supply always ensure
that the pilot and all interfaced equipment – whether SimNet
or NMEA – are connected to the same battery bank, even if
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.