ComNav 1500 / 1510 Autopilot - 10 -
2.2.1 Distribution Unit Connections
Distribution Unit connections should be according to the System Wiring Diagram
provided and in addition, the following points:
2.2.2 Safety Switch
Important! An external safety switch or circuit breaker (not supplied) should be
installed in line with power input. Make sure it is rated greater than or equal to 25
Amps.
This switch will serve as your Autopilot ultimate safety OFF switch.
2.2.3 DIP Switches
The main circuit board has 2 DIP Switches, which must be pre-set during
installation to suit the installed configuration.
Important! With power turned off to the system, do the following:
a)
Locate DIP Switch for 12 or 24/32 VDC voltage and make sure it is set to the
voltage supply connected.
b) Locate DIP Switch for ”Solenoid Valve” or ”Pumpset” and make sure it is
set to
the type of drive you have installed.
2.2.4 Trim Potentiometers
If an external Rudder Angle Indicator is fitted to a 1500 Distribution Unit, it can be
calibrated with the 2 trim potentiometers as indicated on drawing. Adjust VR3
labeled offset, for rudder center and VR2 labeled gain, for maximum deflection.
Note that this is just to calibrate an external Rudder Angle Indicator Instrument. The
NX2 instruments must be calibrated by changing the rudder angle transmitter arm
length.
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