---------------------------------------------------------- Avionics-List Digest Archive --- Total Messages Posted Mon 09/08/08: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 11:22 AM - FW: Autopilot Problem (Mike Lord) 2. 01:18 PM - Re: FW: Autopilot Problem (Ralph E. Capen) 3. 02:17 PM - Re: FW: Autopilot Problem (Noel Loveys) 4. 03:51 PM - Re: FW: Autopilot Problem (Eric Tiethoff (HCCNet)) 5. 06:20 PM - Re: FW: Autopilot Problem (Noel Loveys) 6. 06:23 PM - Re: FW: Autopilot Problem (Noel Loveys) 7. 06:26 PM - Re: FW: Autopilot Problem (Noel Loveys) ________________________________ Message 1 _____________________________________ Time: 11:22:42 AM PST US From: Mike Lord Subject: Avionics-List: FW: Autopilot Problem I am looking for advice on how to troubleshoot the following problem with m y autopilot. My setup is as follows. I have a King KCS-55A Compass system with the KI-525A HSI indicator. This is coupled to an STEC 60-2 autopilot . Also connected to the HSI is a King KX-165 and Northstar M3 Approach GPS .. The problem=2C which happened during my last flight is=3B when the autopilo t in set to the heading mode=2C it will not track to the bug setting=2C it will either roll to the left or right all the way to the aileron stops. Th e closer it is the bug setting the slower the roll and just about stops at the bug. The same thing appears to happen in the NAV mode when driven by t he VOR or GPS. I have checked and reseated all connections on the turn coordinator=2C auto pilot controller=2C roll computer and HSI with no luck. Thanks for the advice. Mike N1193D AG5B Tiger ________________________________ Message 2 _____________________________________ Time: 01:18:30 PM PST US From: "Ralph E. Capen" Subject: Re: Avionics-List: FW: Autopilot Problem Mike, Same issue as what I'm having with my S-Tec System 30 except it is only to the left. S-Tec told me to check the outputs of my HSI (Century NSD1000) to match +- 5VDC depending on which side of the bug you're on. Haven't been able to do that as my GPSS module crapped out and I had to sent it in for repairs - it's back and I haven't had time to test it again..... I need to test that and the alt hold module - in case I need to reverse pins 3 and 4..... Check with S-Tec about what the specs should be for your King HSI... Let me know what you come up with... Ralph -----Original Message----- >From: Mike Lord >Sent: Sep 8, 2008 2:21 PM >To: avionics-list@matronics.com >Subject: Avionics-List: FW: Autopilot Problem > > > >I am looking for advice on how to troubleshoot the following problem with my autopilot. My setup is as follows. I have a King KCS-55A Compass system with the KI-525A HSI indicator. This is coupled to an STEC 60-2 autopilot. Also connected to the HSI is a King KX-165 and Northstar M3 Approach GPS. > >The problem, which happened during my last flight is; when the autopilot in set to the heading mode, it will not track to the bug setting, it will either roll to the left or right all the way to the aileron stops. The closer it is the bug setting the slower the roll and just about stops at the bug. The same thing appears to happen in the NAV mode when driven by the VOR or GPS. > >I have checked and reseated all connections on the turn coordinator, autopilot controller, roll computer and HSI with no luck. > >Thanks for the advice. > >Mike >N1193D AG5B Tiger > > ________________________________ Message 3 _____________________________________ Time: 02:17:39 PM PST US From: "Noel Loveys" Subject: RE: Avionics-List: FW: Autopilot Problem That sounds like a polarity reverse. Rather than going through all the block connections why not just reverse the polarity of the aileron actuator motor... Be sure to mark this change on your block interconnect diagram if you made one. Noel Sigtaturea Noel Loveys Campbellton, NL, Canada CDN AME intern, PP-Rec C-FINB, Kitfox III-A Aerocet 1100 floats noelloveys@yahoo.ca From: owner-avionics-list-server@matronics.com [mailto:owner-avionics-list-server@matronics.com] On Behalf Of Mike Lord Sent: Monday, September 08, 2008 3:52 PM Subject: Avionics-List: FW: Autopilot Problem I am looking for advice on how to troubleshoot the following problem with my autopilot. My setup is as follows. I have a King KCS-55A Compass system with the KI-525A HSI indicator. This is coupled to an STEC 60-2 autopilot. Also connected to the HSI is a King KX-165 and Northstar M3 Approach GPS. The problem, which happened during my last flight is; when the autopilot in set to the heading mode, it will not track to the bug setting, it will either roll to the left or right all the way to the aileron stops. The closer it is the bug setting the slower the roll and just about stops at the bug. The same thing appears to happen in the NAV mode when driven by the VOR or GPS. I have checked and reseated all connections on the turn coordinator, autopilot controller, roll computer and HSI with no luck. Thanks for the advice. Mike N1193D AG5B Tiger ________________________________ Message 4 _____________________________________ Time: 03:51:32 PM PST US From: "Eric Tiethoff (HCCNet)" Subject: Re: Avionics-List: FW: Autopilot Problem Are your baudrates correct ? Look in your manual fot the correct settings. From: Mike Lord Sent: Monday, September 08, 2008 8:21 PM Subject: Avionics-List: FW: Autopilot Problem I am looking for advice on how to troubleshoot the following problem with my autopilot. My setup is as follows. I have a King KCS-55A Compass system with the KI-525A HSI indicator. This is coupled to an STEC 60-2 autopilot. Also connected to the HSI is a King KX-165 and Northstar M3 Approach GPS. The problem, which happened during my last flight is; when the autopilot in set to the heading mode, it will not track to the bug setting, it will either roll to the left or right all the way to the aileron stops. The closer it is the bug setting the slower the roll and just about stops at the bug. The same thing appears to happen in the NAV mode when driven by the VOR or GPS. I have checked and reseated all connections on the turn coordinator, autopilot controller, roll computer and HSI with no luck. Thanks for the advice. Mike N1193D AG5B Tiger ________________________________ Message 5 _____________________________________ Time: 06:20:34 PM PST US From: "Noel Loveys" Subject: RE: Avionics-List: FW: Autopilot Problem The further you are off course the more deviation goes to the controller and the more power is fed to the aileron actuator. The problem is your aileron actuator is going the wrong way this can only be because either the inputs to the controller from the HSI are reversed or the power wires to the aileron actuator are reversed. One, not both, of these things are the problem. I recommended reversing the power wires to the actuator forgetting that most of the planes on this list are certified. For a certified plane triple check the polarity of the controller inputs from the HSI to the autopilot controller. If that is perfect, then reverse the polarity of the two wires going into the aileron actuator. Do not change any other wiring ( assuming everything else works properly). Sigtaturea Noel Loveys Campbellton, NL, Canada CDN AME intern, PP-Rec C-FINB, Kitfox III-A Aerocet 1100 floats noelloveys@yahoo.ca From: owner-avionics-list-server@matronics.com [mailto:owner-avionics-list-server@matronics.com] On Behalf Of Eric Tiethoff (HCCNet) Sent: Monday, September 08, 2008 8:20 PM Subject: Re: Avionics-List: FW: Autopilot Problem Are your baudrates correct ? Look in your manual fot the correct settings. From: Mike Lord Sent: Monday, September 08, 2008 8:21 PM Subject: Avionics-List: FW: Autopilot Problem I am looking for advice on how to troubleshoot the following problem with my autopilot. My setup is as follows. I have a King KCS-55A Compass system with the KI-525A HSI indicator. This is coupled to an STEC 60-2 autopilot. Also connected to the HSI is a King KX-165 and Northstar M3 Approach GPS. The problem, which happened during my last flight is; when the autopilot in set to the heading mode, it will not track to the bug setting, it will either roll to the left or right all the way to the aileron stops. The closer it is the bug setting the slower the roll and just about stops at the bug. The same thing appears to happen in the NAV mode when driven by the VOR or GPS. I have checked and reseated all connections on the turn coordinator, autopilot controller, roll computer and HSI with no luck. Thanks for the advice. Mike N1193D AG5B Tiger href="http://www.matronics.com/Navigator?Avionics-List">http://www.matronics .com/Navigator?Avionics-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c ________________________________ Message 6 _____________________________________ Time: 06:23:35 PM PST US From: "Noel Loveys" Subject: RE: Avionics-List: FW: Autopilot Problem Woops.... if this only happens ONLY when the heading hold is selected then the output from the HSI to the autopilot controller must be reversed. If the auto pilot always reverses the correct input then the actuator wires are reversed. Sigtaturea Noel Loveys Campbellton, NL, Canada CDN AME intern, PP-Rec C-FINB, Kitfox III-A Aerocet 1100 floats noelloveys@yahoo.ca From: owner-avionics-list-server@matronics.com [mailto:owner-avionics-list-server@matronics.com] On Behalf Of Eric Tiethoff (HCCNet) Sent: Monday, September 08, 2008 8:20 PM Subject: Re: Avionics-List: FW: Autopilot Problem Are your baudrates correct ? Look in your manual fot the correct settings. From: Mike Lord Sent: Monday, September 08, 2008 8:21 PM Subject: Avionics-List: FW: Autopilot Problem I am looking for advice on how to troubleshoot the following problem with my autopilot. My setup is as follows. I have a King KCS-55A Compass system with the KI-525A HSI indicator. This is coupled to an STEC 60-2 autopilot. Also connected to the HSI is a King KX-165 and Northstar M3 Approach GPS. The problem, which happened during my last flight is; when the autopilot in set to the heading mode, it will not track to the bug setting, it will either roll to the left or right all the way to the aileron stops. The closer it is the bug setting the slower the roll and just about stops at the bug. The same thing appears to happen in the NAV mode when driven by the VOR or GPS. I have checked and reseated all connections on the turn coordinator, autopilot controller, roll computer and HSI with no luck. Thanks for the advice. Mike N1193D AG5B Tiger href="http://www.matronics.com/Navigator?Avionics-List">http://www.matronics .com/Navigator?Avionics-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c ________________________________ Message 7 _____________________________________ Time: 06:26:55 PM PST US From: "Noel Loveys" Subject: RE: Avionics-List: FW: Autopilot Problem BTW did you draw up an interconnect diagram and can you scan it so we can see what/how you have your system installed. Noel From: owner-avionics-list-server@matronics.com [mailto:owner-avionics-list-server@matronics.com] On Behalf Of Eric Tiethoff (HCCNet) Sent: Monday, September 08, 2008 8:20 PM Subject: Re: Avionics-List: FW: Autopilot Problem Are your baudrates correct ? Look in your manual fot the correct settings. From: Mike Lord Sent: Monday, September 08, 2008 8:21 PM Subject: Avionics-List: FW: Autopilot Problem I am looking for advice on how to troubleshoot the following problem with my autopilot. My setup is as follows. I have a King KCS-55A Compass system with the KI-525A HSI indicator. This is coupled to an STEC 60-2 autopilot. Also connected to the HSI is a King KX-165 and Northstar M3 Approach GPS. The problem, which happened during my last flight is; when the autopilot in set to the heading mode, it will not track to the bug setting, it will either roll to the left or right all the way to the aileron stops. The closer it is the bug setting the slower the roll and just about stops at the bug. The same thing appears to happen in the NAV mode when driven by the VOR or GPS. I have checked and reseated all connections on the turn coordinator, autopilot controller, roll computer and HSI with no luck. Thanks for the advice. Mike N1193D AG5B Tiger href="http://www.matronics.com/Navigator?Avionics-List">http://www.matronics .com/Navigator?Avionics-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message avionics-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Avionics-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/avionics-list Browse Digests http://www.matronics.com/digest/avionics-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.