7i77 TTL encoder

Thank you for reply MR.Tommy , MR.PCW
Now Encoder done .
I use solution slow JOG and check real moving distance and compare encoder now done.

I config , setup , Tunning for Analog  to Servo DELTA A2 (I use analog from 7i77)  2days   I can't smooth tunning Servo motor (I check with Hall scope with signal x-vel fb , y-vel fb) 
I read  tunning from MR.Tommy 
forum.linuxcnc.org/10-advanced-configura...mple-mesa-7i77#88210

and see picture ,He can P = 20 but me  1 - 1.5  only .
when P = 2 my servo super vibration and cut .
Servo DELTA  A2 other config or setup ? can advice me ?

FYI:
- Sorry this is new topic but I don't know must open new post or inside this post better.
- X axis DELTA B2
-Y axis DELTA A2
- attach picture is DELTA A2 only

Thank you ,
Asis