text: <s>[INST] Powerflex 755 Summary: Unbalance current inputI'm using powerflex 755 FRN 1.010 at body maker machine from stolle machinery. Now when i measure the current input R-19 amp, S-50 amp and T-50 amp with a balance voltage input R-S-T 390VAC. after changing input power cable from R to S, the current reading change R-50, S-19 and T-50. The current output and voltage was balance. But the strange thing was, when i change with another powerflex 755 in that panel, the current reading was OK. Any idea what should i check or do? Thanks. [/INST] Are you saying the current measurements on the second drive are balanced (50 amps each on R, S, and T)? Is the second drive also at firmware version 1.01? Are the two drives EXACTLY the same in all respects? \\n </s>