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Evolution ACU-200 Incorrect Response During "Track" mode
10-09-17, 11:47 AM
Post: #1
Evolution ACU-200 Incorrect Response During "Track" mode
This thread relates to my ACU-200 that incorrectly responds when operated in "Track" mode. When the autopilot was set to "Track" mode to navigate towards a selected waypoint that was approximately 10 nm fro current position, the autopilot steered the vessel 180 degrees from the destination waypoint, traveled approximately 0.25 nm, and signaled waypoint arrival. A second that third attempt yielded the same result.

It should be noted this autopilot performs perfectly when operated in "Auto" mode, but has not been tested in any pattern modes.
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10-09-17, 12:58 PM (This post was last modified: 10-09-17 12:58 PM by Chuck - Raymarine - Moderator.)
Post: #2
RE: Evolution ACU-200 Incorrect Response During "Track" mode
Welcome back to the Raymarine Forum Tom,

When you encountered this problem, had you commanded the MFD's Chart application to follow a route ... or had you commanded the autopilot to go to a waypoint / cursor position.
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10-10-17, 05:58 AM
Post: #3
RE: Evolution ACU-200 Incorrect Response During "Track" mode
This problem was encountered after selecting navigate / go to waypoint / selecting waypoint using a e125 MFD; not activating a route. The autopilot was then placed in Track mode by selecting "Yes (Track)" on the "Engage Pilot TRACK mode?" prompt on the MFD.
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10-10-17, 08:21 AM
Post: #4
RE: Evolution ACU-200 Incorrect Response During "Track" mode
Tom,

Was the waypoint selected included within any route?
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10-10-17, 09:23 AM
Post: #5
RE: Evolution ACU-200 Incorrect Response During "Track" mode
Chuck:
The selected waypoint has been confirmed to not have been a waypoint making up a route.
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10-10-17, 10:08 AM (This post was last modified: 10-11-17 08:01 AM by Chuck - Raymarine - Moderator.)
Post: #6
RE: Evolution ACU-200 Incorrect Response During "Track" mode
Tom,

Please verify that the autopilot has been configured into Track Mode (MENU->MODE->TRACK) rather than Pattern mode.
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10-10-17, 03:08 PM (This post was last modified: 10-11-17 08:02 AM by Chuck - Raymarine - Moderator.)
Post: #7
RE: Evolution ACU-200 Incorrect Response During "Track" mode
Chuck:

I am confident that the autopilot was set to "Track" mode as this "Track" mode was the only prompt offered by the MFD after setting the MFD to "go to waypoint."

However, this entire issue may be moot at this point based on the following.
While the boat was sitting on the trailer, a new waypoint was created approximately 1 nm straight ahead of the boat. The MFD's "go to waypoint" feature was activated resulting in the same prompt to start autopilot in "Track" mode.

Acknowledging this test is woefully deficient from a water test, the MFD showed that the autopilot would turn 2 degrees if set to "Track" mode. In contrast, the MFD during the original issue showed the autopilot would turn 180 degrees, which it did.

This being said and assuming the original issue resulted from operator error, let's assume this issue is resolved.

If anymore information is discovered or a water test reveals there really is an issue, I will provide another reply.

Once again, thanks for your assistance.
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10-22-17, 10:46 AM
Post: #8
RE: Evolution ACU-200 Incorrect Response During "Track" mode
This reply is being made to convey results of on water testing of the autopilot.

The autopilot performed flawlessly under all modes.

Issue resolved.

THANKS much!!
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10-23-17, 11:10 AM
Post: #9
RE: Evolution ACU-200 Incorrect Response During "Track" mode
You're welcome.
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