That is good news. Putting an encoder on the spindle side looks to be easier than putting it on the servo motor.
I decided to take another look at using the encoder outputs on the Maxsine EP1 servo drive, despite those encoder outputs being too high of a resolution, after reading this post over at the UCCNC forum.
forum.cncdrive.com • View topic - spindle encoder
But when I took a closer look at the servo encoder outputs located on the X1 DB25 connector of the servo drive, I found this.
Attachment 490494
Attachment 490490
Attachment 490492
It wasn’t clear which inputs or outputs that Novakon was using on the X1 connector with their special adapter board. Maybe Novakon had already grabbed the encoder outputs and made my life simpler!?!
So I rang out which which DB25 pins were connected to which RJ25 (6P6C phone jack). I found out that five of the six DB25 pins were connected as follows:
14 Digital Input 1
17 Digital Output 2
19 Position Command Direction +
20 Position Command Pulse +
23 Encoder Signal /A
But the sixth RJ25 phone jack wire was connected to multiple DB25 pins. This doesn’t make any sense to me having all these connectors together, especially the Digital Input Power Supply connected to the Encoder Signal Ground.
1 Digital Input Power Supply (COM+)
6 Position Command Direction -
7 Position Command Pulse -
10 Encoder Signal Ground
18 Digital Output Common
So the bottom line is that 1) Novakon did not provide access the encoder outputs for me, and 2) the DB25 adapter board makes it harder to access the encoder outputs, especially since I don’t understand why the adapter board is wired the way it is.
All of the above is mainly for me to document what I found. Next step is to uncover the spindle pulley and see what it will take to mount something like a CUI Devices AMT102 encoder.
https://cdn.automationdirect.com/sta...0datasheet.pdf