Noise Problem in I Current Circuit

Your problem is with high frequency noise caused by the drive. the noise out at the motor is trying to find it's way back to the origin - the drive - in doing so it strays and causes sensitive input signals to rise up and "on" - if you can - you should put a "delay on" to your uProcessor inputs - at least 10msec.

You must used shielded motor cable (and of course seperate any low voltage signals) - be sure 85% braided copper outer shield is connected in a good way to the metal housing of the motor (metal to metal throught he J-box with metal EMC cable gland) - also be sure the shield is connected to the drive chassis or at a minimum the steel back panel directly beneath the drive - use cable clamps arond shield that are VERY tight and all the way around the shield - no pig tails

Make sure the motor and the elec cabient backpanel and elec enclosure are all connected to the same machine chassis in a good way - either a good metal to metal bond or you have to run seperate 3/4" wide flat braided copper braid tot he frame of the machine - remove all paint under connections and use Serrated washer A3.2 DIN 6798 - alias "steel EMC washers" to dig into to metal at each connection - see Newark for best prices and quick delivery of all these materials.