Since you have not yet verified that you have the limit switches wired to the correct inputs, there is no guarantee that tripping the switch is going to reduce current to the motor in that direction.That's what limit switches are for.
For example, if your installation does NOT require direction reversal on the X axis, then you wire the X minus limit to INP1, and the X plus limit to INP2. If your installation DOES require direction reversal on the X axis, then you wire the X minus limit to INP2, and the X plus limit to INP1.
You won't know whether you require direction reversal until you get the current power/encoder mismatch sorted out.
If an axis is running away in the plus direction, and you trip open its minus-limit inhibit to the drive, it will continue running away until stopped by either the "410 ... position error" stall condition or the "411 ... full power without motion" stall condition, or you press Emergency Stop.
That is why, if you are doing this sort of test with the motor coupled to the machine, you do it starting in the middle of travel, and you do it with one hand on the jog button and the other hand on Emergency Stop.