Re: Raymarine EV-100 Wheel autopilot install
Posted: Tue Nov 17, 2015 8:19 am
Installing a Raymarine EV-100 wheel drive autopilot on my 2002X was definitely my second most valuable modification (the first was a solar powered 100l/3.5 cubic feet fridge). It keeps way better course than I can with manual steering. It’s also perfect when I want to turn the boat up to 30°. But when I want to turn 90° (e.g. tack) it usually overshoots and trying to compensate it makes bigger and bigger S-curves until it gives it up with error alarm.
I had no time on my vacation to try the different parameter combinations, currently they are set:
Pilotresponse: Cruise
Vessel Hull Type: Sail
Rudder Limit: 33°
Hard Over Time: 30.0s
Maybe the hull type “Sail (slow turn)” could help or the hard-over time could be a good candidate to adjust. I set the hard-over time to 30, because I experienced the slow turning behavior in dockside described by Matt in a previous post, and also because the Raymarine MFD manual says the measured value should be doubled. I asked the Raymarine technical support about the difference between the P70 and MFD documentation, and the answer was:
“The instructions for the hardover time measurement sound odd, but are correct, the hardover time is measured with the pilot operating at full speed, whereas most of the time the pilot drives the rudder slower and so this is why the time is doubled.”
Did you experience this behavior? Did you try different parameter combinations? Sharing of your experience/opinion would be appreciated even if most of you have 26M which may respond in a different way than 26X.
Istvan
I had no time on my vacation to try the different parameter combinations, currently they are set:
Pilotresponse: Cruise
Vessel Hull Type: Sail
Rudder Limit: 33°
Hard Over Time: 30.0s
Maybe the hull type “Sail (slow turn)” could help or the hard-over time could be a good candidate to adjust. I set the hard-over time to 30, because I experienced the slow turning behavior in dockside described by Matt in a previous post, and also because the Raymarine MFD manual says the measured value should be doubled. I asked the Raymarine technical support about the difference between the P70 and MFD documentation, and the answer was:
“The instructions for the hardover time measurement sound odd, but are correct, the hardover time is measured with the pilot operating at full speed, whereas most of the time the pilot drives the rudder slower and so this is why the time is doubled.”
Did you experience this behavior? Did you try different parameter combinations? Sharing of your experience/opinion would be appreciated even if most of you have 26M which may respond in a different way than 26X.
Istvan


