text: <s>[INST] PowerFlex 4M & PowerFlex523 4-20mA Input Hi Guys, I have 4 drives on the site: VSD 1, 3, 4 - PowerFlex4M VSD 2 - PowerFlex523 I'm having some issues with reading analog input (4-20mA) from my PowerFlex 4M 2.2kW drives. These analog signals comes from PLC analog output and I have confirmed with multimeter on the PLC output points that they are giving out correct mA. For eg: At 16mA, VSD 1,3,4 - Parameter d021 is reading around 80%, instead of 75%. t213 - 0, t214 - 100 VSD2 - Parameter d361 is reading around 75% as it should. Since all PowerFlex 4M are doing the same behaviour, I might be missing out on some settings? Any advice would be appreciated. Thank You. Reference: 22F-UM001D-EN-E PowerFlex 4M Adjustable Frequency AC Drive FRN 1.xx - 2.xx User Manual (rockwellautomation.com) 520-UM001I-EN-E PowerFlex 520-Series Adjustable Frequency AC Drive User Manual (rexel-cdn.com) [/INST] Hello Maung, It seems the scaling is slightly off. I think in the 4M the scaling is based off the min and max frequency parameters P104 and P105 if I am not mistaken. These parameters may need some slight adjustments to align your VSD speed control with the PF525. Hope this helps. \\n </s>