ComNav 1500 / 1510 Autopilot - 23 -
2.15 Solenoid Valve Controlled Pumpsets
If the vessel is already fitted with a Solenoid Valve Controlled Pumpset having coils
for 12 or 24 VDC, connect the solenoid coils directly to the Distribution Unit as per
System Wiring Diagram provided. DIP Switch 1 is set in the “up” position (refer to
System Wiring Diagram).
Solenoid Valve Controlled Pumpsets should be adjusted to speeds of 14 seconds
from hardover port to hardover starboard or slower for maximum accuracy. Faster
hardover times will require increased anti-hunt settings to prevent hunting
(overshoot of the rudder).
To adjust anti-hunt setting, first complete procedures in Dockside Setup and Sea
Trails. Engage the Autopilot and with the Pumpset running, make 10 ° course
changes to port and starboard. If the rudder hunts (i.e. oscillates rapidly back and
forth during these course changes), gradually increase the anti-hunt control (i.e.
very slowly adjust VR1 trim potentiometer counterclockwise) until the rudder
remains stable. Do not increase the anti-hunt control any more than necessary as
this can begin to degrade course accuracy.
2.16 Accessories
Install any accessories as per instructions included with them and according to
wiring as shown in System Wiring Diagrams included in this manual.
When you finished the installation, perform the Dockside Testing routine.
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