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4. PORT STEERING OUTPUT
5. STBD STEERING OUTPUT
These are the two main steering outputs
from the autopilot. They are open
collector (i.e. switch to ground) and can
sink up to 3 amps of current. They can be
used directly to operate a solenoid
operated hydraulic 4-Way Valve, or as
inputs to a solid state drive box for electric
steering systems (either hydraulic or
mechanical).
Either output can be overridden with a
switched connection (such as a jog lever)
between JOG PORT or JOG STBD and
JOG COM (terminals 11, 12, and 13)
without damaging the autopilot. A pair of
diagnostic LED's, one red and one green,
are provided in the distribution box to
confirm the correct operation of these two
outputs.
6. SWITCHED POWER
The input voltage appears on this terminal
when the autopilot is in any mode except
STANDBY or OFF. It can supply up to 3
amps of current for use as the power
source for a solenoid operated 4-Way
Valve, or to activate an electric steering
system.
A yellow diagnostic LED is provided in the
distribution box to confirm the correct
operation of this output. For 12V 4-Way
Valve operation, it is recommended that
this output not be used; instead, the
common lead from the solenoids should
be connected to UNSWITCH. PWR
(terminal 3).
7. SPEED CONTROL
This is a linear signal used with variable
speed drive systems. It is centred
between +5 VOLTS and COMMON
(terminals 8 and 9) when no change of
rudder angle is required, and moves up or
down from that point by as much as 2.5
VDC for maximum rudder position
change to port or starboard respectively.
8. +5VDC
9. COMMON
+5 volts appears across these terminals
whenever the autopilot is turned on.
These terminals are used by several of
the Drive Boxes manufactured by
ComNav Marine as a reference for
SPEED CONTROL (terminal 7).
A yellow LED is provided in the
distribution box to confirm the operation of
the 5V power supply in the autopilot.
Terminal 9 must NOT be used as the
return for a motor field or the clutch or a
rotary drive or the lockup valve of a linear
actuator; JOG COMMON (Terminal 13)
or PILOT POWER (-) (Terminal 2) should
be used instead.
10. MOTOR MONITOR
This terminal is used with some of the
Drive Boxes manufactured by ComNav
Marine to monitor motor current. If the
current exceeds a maximum level, the
autopilot will sound an alarm.
11. JOG PORT
12. JOG STBD
13. JOG COMMON
If any jog levers are being used in the
system, they should be connected to
these three terminals. If the jog levers are
to be active all the time, whether the
autopilot is turned on or off, connect the
common from the solenoid valve to
UNSWITCHED POWER (terminal 3).
14. RUDDER POWER
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