M-Max Series OverviewM-Max Series Adjustable Frequency Drive MN04020003E—October 2013 www.eaton.com 3M-Max Series OverviewThis manual provides a description of the M-Max seriesfrequency inverters. It provides special information requiredfor project planning, installation, and for the operation of theMMX frequency inverter. All information applies to thespecified hardware and software versions.Please read the manual thoroughly before you install andoperate the frequency inverter.We assume that you have a good knowledge of engineeringfundamentals and that you are familiar with handlingelectrical systems and machines, as well as with readingtechnical drawings.Notes on the Second MMX UpgradeThis second edition of the manual describes theextended functionality of the MMX. This applies toM-Max series frequency inverters from production date12W10 S/N 91275113, see nameplate.Essential features of this upgrade:● New control circuit board with a more powerfulmicroprocessor● Side mounted interface for fieldbus connections [1]● Two additional control buttons [2]● Extended functionality for digital and analog inputs andoutputs [3]M-Max Frequency ConverterControl Signal Terminals and Microswitches312IOKBACKRESET LOCREM1 2 3 6 7 8 9 10 25 244 5 13 14 15 16 18 20 22 23 26AI2 DO-GND DI4 DI5 DI6 AO DO+ R13 R14 – R24+10V AI1 GND 24V DI-C DI1 DI2 DI3 A B R21 R22LOGIC– +AI 1V mAAI 2V mARS 485– Term.