M-Max Series Adjustable Frequency DriveM-Max Series Adjustable Frequency Drive MN04020003E—October 2013 www.eaton.com xiiiCAUTIONDebounced inputs may not be used in the safety circuitdiagram.Any contactors and switching devices on the power side arenot to be opened during motor operation. Inching operationusing the power switch is not permitted.Contactors and switching devices (repair and maintenanceswitches) on the motor side must never be opened while themotor is in operation when the frequency inverter is set tospeed control operating mode (P11.8 = 1).Inching operation of the motor with contactors and switchingdevices in the output of the frequency inverter is notpermitted.CAUTIONDebounced inputs may not be used in the safety circuitdiagram.Make sure that there is no danger in starting the motor.Disconnect the driven machine if there is a danger in anincorrect operational status.WARNINGIf a start signal is present, the drive is restartedautomatically, if P3.1 = 0 is set (REAF = Restart afterFAULT) and the error message has been acknowledged(Reset).WARNINGIf a start command is present at a digital input (DI1–DI6)assigned at P3.21, the sequence control also startsautomatically (without switch edge) when the powersupply is switched on (for example, after a power supplyfailure).CAUTIONA high torque at low speed causes a high thermal load on themotor. If temperatures are too high, the motor should beequipped with an external fan.CAUTIONA high torque at low speed leads to a high thermal load onthe motor.CAUTIONDebounced inputs may not be used in the safety circuitdiagram. DC braking results in additional heating of themotor. Configure the brake torque, set via braking current(P12.1) and the braking duration (P12.2 and P12.4), as low aspossible.CAUTIONDebounced inputs may not be used in the safety circuitdiagram.The motor parameters must be identical in both parametergroups (P7 and P14).CAUTIONAlthough the registers to be written are consecutive, the IDnumbers of the parameter list are not. Only the ID numbersin the process data list are consecutive.CAUTIONFuses and cables selected must always comply with theapplicable regulations at the installation site.
