If you can enable/disable but cannot jog from the Point-to-Point (PTP) screen in the Drive Support Tool software, check that the Start input is low.
The Start input initializes the Indexer function for the Pseries drive to constantly scan the IO for its pre-defined functionality.
This needs to be low or off for the PTP screen to work:
If the input is already on and you cannot easily change it, you can switch the polarity by clicking Low to switch to High, then allowing DST control:
Or the input function can be changed by selecting Start and changing it to Unassigned.
(This would only be retained after cycling power if Save to Memory was clicked. It'll revert if you don't save after cycling power.)