Okay, that sounds more like what I think of as "3-wire control", where you have a maintained "Not Stop" input and a momentary "Start" input.
I think what's going on is that the HIM module is asserting a direction command.
Try setting up the drive for one of the Input modes described as "Three Wire Control with Multi-Source Reversing"; an illustration of those options is on page 2-29 of the User Manual.
Another approach would be to assert the "Local Control" input when you turn on a direction input from the discrete I/O. It's called "Local" because of the location of the terminal blocks, rather than the location of the device that's sending the commands.
Regarding exact nomenclature, I had a discussion that went roughly like this yesterday.
Engineer 1: "Are those hinges mounted left and right, or fore and aft ?"
Engineer 2: "Um, they're left and right. When you're looking at it in this drawing".
Engineer 1: "I mean, are they left and right ? Which direction does it rotate ?"
Engineer 2: "Up and down. I mean, forward and backward".
Engineer 3, piping up: "They're transverse. It goes fore and aft"
Engineer 4, shaking her head: "No, that's port and starboard."
Engineer 3: "Port and starboard ? But we're ascending".
Engineer 4: "We always use the direction of travel opposite the engine thrust".
Engineer 1: "But this mechanism goes both up and down."