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  #1  
Old 02-17-2021, 06:01 PM
RV10Man RV10Man is online now
 
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Default G3X pitch trim indicator

I need to add the pitch trim indicator to my PFD (GDU 470 touch). When in config mode, I have green check marks in all the right boxes except "PTRIM". It just skips over this box while scrolling through the various points. It won't let me "click" on it.

I tried the search function of the online manual for all kinds of pitch trim searches. All I can see showing up is how it works.
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  #2  
Old 02-17-2021, 06:28 PM
rocketman1988 rocketman1988 is offline
 
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Default are you...

Are you using a VPX, by chance?
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  #3  
Old 02-17-2021, 10:32 PM
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Default

Did you assign the general,purpose inputs as position sensor inputs?
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  #4  
Old 02-18-2021, 05:03 AM
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Longez Longez is offline
 
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Post

Quote:
Originally Posted by RV10Man View Post
When in config mode, I have green check marks in all the right boxes except "PTRIM". It just skips over this box while scrolling through the various points. It won't let me "click" on it.
If your system has a "PTRIM" entry in the Device List on the System Information page, it means you incorrectly enabled a pitch trim GSA 28 servo in the LRU configuration.

While you might have a typical pitch trim motor in your plane, you probably are not using a separate GSA 28 servo for pitch trim.

Make sure that both roll and pitch trim servos are disabled on this page.

Click image for larger version

Name:	Autopilot LRU Page.png
Views:	17
Size:	64.1 KB
ID:	8504

Steve
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  #5  
Old 02-18-2021, 07:02 AM
RV10Man RV10Man is online now
 
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Quote:
Originally Posted by Longez View Post
If your system has a "PTRIM" entry in the Device List on the System Information page, it means you incorrectly enabled a pitch trim GSA 28 servo in the LRU configuration.

While you might have a typical pitch trim motor in your plane, you probably are not using a separate GSA 28 servo for pitch trim.

Make sure that both roll and pitch trim servos are disabled on this page.

Attachment 8504

Steve


I realize now why I didn't see this post in the "glass cockpit" sub forum. ........I put it in the wrong place. lol
Thanks Steve. I'll check it out.

Well.........that didn't fix it. I still don't have trim indicator on the PFD.
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Last edited by RV10Man : 02-18-2021 at 06:24 PM.
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  #6  
Old 02-19-2021, 10:05 AM
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bjdecker bjdecker is offline
 
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Quote:
Originally Posted by RV10Man View Post

Well.........that didn't fix it. I still don't have trim indicator on the PFD.
The trim position sensors are set up in the Engine & Airframe menu (Icon)

You will need to enable/calibrate the device that's connected to one or more of the discrete inputs to the GEA 24 or GSU 73.

See page 35-175, Section 35.4.32.16 of the installation manual.

https://static.garmin.com/pumac/190-01115-01_am.pdf

You then will need to enable the trim display on PFD/MFD --

See page 76-77 of the G3X Pilot's Guide.

https://static.garmin.com/pumac/190-01115-00_q.pdf
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Last edited by bjdecker : 02-19-2021 at 10:10 AM.
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