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Help with Raymarine Autopilot - S1g6001

Old 10-18-2006, 07:43 AM
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Default Help with Raymarine Autopilot - S1g6001

Guys: I've been playing with this Autopilot for over a year and believe I finally have it hooked up right. (Just got the computer back from Raymarine after it was screwey)

Anyway, I recently took my boat on a 147 mile Sharking trip. The A/P seems to follow a track OK, not great. When looking back at my wake, it seems to over-correct a lot. It will often come off the track line, then kinda realize, Oh $hit, and turn back to the track a little too aggresively.(serpentine wake)

My questions are this:

1. How tight a course should I expect this to hold. Any S1G owners have thiers holding a tight line on your track?

2. It seems that my heading, COG and the intended course of the A/P (# on the display) are often off, by up to 20 degrees. Is this normal?

3. What parameters can I adjust so that I hold a tighter course. (Shouldn't my wake be straight, not serpentine??)


Thanks for your help.

John
Old 10-18-2006, 08:02 AM
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Default RE: Help with Raymarine Autopilot - S1g6001

Hopefully Birdman will address your questions. He has the S1G and is very familiar with it's operation. I have a RM ST5000+ and am having the same issues.


1. How tight a course should I expect this to hold.
IMO tight


2. It seems that my heading, COG and the intended course of the A/P (# on the display) are often off, by up to 20 degrees. Is this normal?
I have found the same thing & believe that this is the cause for the poor performance


3. What parameters can I adjust so that I hold a tighter course. (Shouldn't my wake be straight, not serpentine??)
There is a paramter that adjusts overshoot & undershoot, I think it is gain (not sure) it is in the manual. I have had no luck in getting a tight course


Old 10-18-2006, 08:39 AM
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Default Re: Help with Raymarine Autopilot - S1g6001

I installed on my last boat (Wellcraft Coastal 290 w/ 225 HP Evinrudes) the S1G / 6001 control head combination, and had similar issues. I took the following steps to reduce the effects of the errors:

1. Often I realigned the compass heading by going into the sea trial mode and skipping the turning part and aligned compass heading with GPS course while at speed. I found that the compass heading would drift off, especially when in a chop. Realigning the heading took only a few moments and increased the accuracy of the track keeping.

2. When on plane, I found that the AP would over correct, sometimes way too much. When at speed, I have the response set to 3 or 4, no more. When going slower, I found that the higher settings work pretty well.

Hope this helps,

Joe
Old 10-18-2006, 09:06 AM
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Default RE: Help with Raymarine Autopilot - S1g6001

Couple things to try John.

Make sure your AP display and GPS display are both showing the same type of reading - whether it is Magnetic or True - Id' recommend putting both on Magnetic. (this shouldn't affect the performance but they will never show the same number if you don't do this and you will "think" there is a problem all the time.)

You will want to redo the compass swing and autolearn if you haven't done so. Do it anyways if things aren't "right"

Assuming you have a good regular compass on board that is verified to be correct, you should use that as a reference when going through the seatrial procedure when you do the Autopilot setup you can "Align Compass Heading" after "Swinging the compass."

What is your deviation reading after swinging the compass? Lower number is better.

When I'm running at speed I turn the gain down some - default is a 5 setting and it can go down to 1 and up to 9. Push the +1 and -1 buttons at the same time for a second and the gain screen comes up. Running I'm usually on 3 or sometimes even 2, and fishing in calm water normally on 5, but go up to 6, or 7 as the wind / waves increase when at trolling speeds. When running I normally start at a 3 setting and adjust from there. If the bow is darting around quickly and jerking around turn the gain down one number from there.

Hope this helps.

Steve
Old 10-24-2006, 04:52 PM
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Default Re: Help with Raymarine Autopilot - S1g6001

Thanks for the help guys ! I hope to work on this some more while the boat is still in the drink.

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