Mismatch after AutoMatch

[Robert]

Those instructions (in blue on page 36 of the manual) are only for when using servos that have a failsafe when the signal stops.    Only follow instructions on that page if you have servos that have a failsafe that can not be disabled.  Otherwise, follow the instructions starting on page 37.  You stated you are using Futaba servos, so do NOT follow those instructions on page 36 as those do not apply to you.

You should retry the AutoMatch (following the instructions starting on page 37), leaving the servos plugged in.  Make sure you make no adjustments to the EPA in the X24 or your transmitter afterwards.

You could try u plugging the slave servo and looking at the max current and then doing the same with just the slave servo.  Maybe there is a mechanical binding issue at some point during the throw.

Copy that Jim. I will do as you suggest. I will report back shortly.....

Well, you definitely found the problem.  It sounds like you have the center of this servo really far off from dead center (1500us).  If you drive a servo beyond it's pulse limits (less than 800us or greater than 2200us) the servo will just free wheel, and the AutoMatch would go through.  However, during normal use at the end they could definitely fight.

Are you using the servo reverse option for the slave channel?  What is the CENTER value for the master and slave servos?  They both should be very close to 1500us.  What servo group number are you using?  What are the endpoint values you are you using for the master?

Again, do NOT follow the instructions on page 36 - they do not apply to you.  Follow the instructions on page 37 and later.

You are the only person ever have a problem with the AutoMatch feature (that wasn't a mechanical binding issue at the very end of the AutoMatch).  We have not had anyone report what you are seeing, so we are a bit stumped.  Other than a pulse limit, the only thing that might cause this would be a defective X24.  The AutoMatch table is stored in the flash memory.  If you changed which group was used for that match (like trying it on the other aileron group that works) and you see the same issue then it would rule out a faulty X24.

The center on the master is -159. I did reverse the master and slave using the servo reverse option on the X24. Servo group is group #2. Master endpoints are 83.6 and 108.8.

With regards to the pulse limit, I noticed that when it asked to move the stick to the max in both directions (just prior to starting the automatch process), that those numbers were definitely less than 2200us and greater than 800us. They were 1924 and 944 respectively.

So I will start again from scratch by resetting all geometry mechanically first (for both master and slave) ensuring that center for my master and slave is close to zero as I can get it. Then I will re-do the automatch. And, I will follow the instructions on page 37 and later.

I will report back.