7i96 & 7i77 Configuration for Drill Line

I've been working on retrofitting a Soltera TDD1000 CNC drilling machine with a Mesa 7i96 and 7i77, but I’m running into an issue where the servos only move in one direction, regardless of the direction I command in LinuxCNC.

I connected Encoder 0 on the 7i96 to the Minas A5B (MDDKT3530E) servo driver via the X4 connector. Here's my current wiring setup:

    Mesa ENC0 Step- → Minas PULSH2 (Pin 45)
    Mesa ENC0 Step+ → Minas PULSH1 (Pin 44)
    Mesa ENC0 Dir- → Minas SIGNH2 (Pin 47)
    Mesa ENC0 Dir+ → Minas SIGNH1 (Pin 46)
    Minas Pin 7 (COM+) → 24V power supply
    Minas Pin 41 (COM0) → 0V (power supply ground)
    Minas Pin 29 is jumpered to Pin 41 (0V)

I attempted adjusting some parameters on the Minas A5B (P0.01, P0.05, P0.06, & P0.07) but none of these changes resolved the issue. (I’ve attached the current parameter set from the driver.)

I also tried swapping the DIR+ and DIR- lines on the Mesa board to see if the motor would reverse direction, but it still only moved in the same direction.

Using Panaterm to connect to the servo over USB, I confirmed in Test mode that the motor can move in both directions, so I suspect the issue lies somewhere in either the LinuxCNC configuration, or the servo driver wiring/configuration.

Has anyone worked with these Minas A5B servo drivers before? Any guidance on how to troubleshoot or resolve this issue would be greatly appreciated.

Attached are the current Minas Paramters, The Linuxcnc Configuration, and a PDF of the original wiring on the drill line.

Looks like the drives were originally setup  for up/down
(Pulse F, Pulse R in the drawing) mode so you might try
setting the 7I96 stepgens into that mode. 

(step_type = 1)