Help with 7i77 Fwd & Reverse Pulse Train

PCW wrote: It looks like you need to ground the drives pin 5 to pin 10 to enable the drive
so for axis 0 7I77 TB5 pin 1 should got to drive pin 10 (SG)
and 7I77 TB5 pin 2 should go to drive pin 5 (SON)

Sure enough, this did the trick! One last question for today. I can't seem to get any encoder signal going to the 7i77. Is there a way to troubleshoot no encoder signal being received?

For differential signals the best way is to measure across the signal pair (from A to /A or B to /B ) and make sure you have
at least 2V and -2V depending on state (wiggle the motor shaft to check all the states)

Also look at the raw counts, if they only change by one count it usually means either A or B is missing

Okay, with my multimeter connected (positive to the wire that goes to TB3 pin 1 and negative to TB3 pin 2. It measures -3.9v. If I turn the handle I can see the voltage change within .1v.

Do you get +3.9V at some positions?
if you ever get any close to 0V across the A and /A or B and /B you have a wrong connection

Okay, with the Hal Meter here is what I am getting:

hm2_5i25.0.encoder.00.input-index - alternates between TRUE & FALSE
hm2_5i25.0.encoder.00.velocity - changes to a very small negative number -.00xxxxxxxxxx

Everything else on that encoder remains unchanged when I turn the handle.

PCW wrote: Do you get +3.9V at some positions?
if you ever get any close to 0V across the A and /A or B and /B you have a wrong connection

No, it stayed negative the entire time and only went between -3.9v and -3.75 but not more or less. Is my polarity wrong? Should it be +3.9?