M-Max Series Adjustable Frequency Drivexii M-Max Series Adjustable Frequency Drive MN04020003E—October 2013 www.eaton.comWARNINGThe frequency inverter outputs (U, V, W) must not beconnected to the input voltage (destruction of thedevice, risk of fire).CAUTIONDebounced inputs may not be used in the safety circuitdiagram.Switch S1 must switch only when frequency inverter T1 is atzero current.WARNINGCarry out wiring work only after the frequency inverterhas been correctly mounted and secured.WARNINGElectric shock hazard—risk of injuries!Carry out wiring work only if the unit is de-energized.CAUTIONDebounced inputs may not be used in the safety circuitdiagram.Fire hazard!Only use cables, protective switches, and contactors thatfeature the indicated permissible nominal current value.CAUTIONDebounced inputs may not be used in the safety circuitdiagram.Ground contact currents in frequency inverters are greaterthan 3.5 mA (AC). According to product standard IEC/EN61800-5-1, an additional equipment grounding conductormust be connected, or the cross-section of the equipmentgrounding conductor must be at least 0.39 in2 (10 mm2).WARNINGThe components in the frequency inverter’s powersection remain energized up to five (5) minutes after thesupply voltage has been switched off (intermediatecircuit capacitor discharging time).Pay attention to hazard warnings!WARNINGDischarge yourself on a grounded surface beforetouching the control signal terminals and the controllerPCB. This protects the device from destruction byelectrostatic discharge.WARNINGOn the control signal and the connection terminals of thefrequency inverter, no leakage resistance tests are to beperformed with an insulation tester.WARNINGWait at least 5 minutes after switching the supplyvoltage off before you disconnect a connection on theconnection terminals (L1, L2/N, L3, U/T1, V/T2, W/T3,R+, R–) of the frequency inverter.WARNINGCommissioning is only to be completed by qualifiedtechnicians.WARNINGHazardous voltage!The safety instructions on Page x must be followed.WARNINGThe components in the frequency inverter’s powersection are energized if the supply voltage (line voltage)is connected. For instance: power terminals L1, L2/N, L3,R+, R–, U/T1, V/T2, W/T3.The control signal terminals are isolated from the linepower potential.There can be a dangerous voltage on the relay terminals(22 to 26) even if the frequency inverter is not beingsupplied with line voltage (for example, integration ofrelay contacts in control systems with 230 Vac).WARNINGFollowing a shutdown (fault, line voltage off), the motorcan start automatically (when the supply voltage isswitched back on) if the automatic restart function hasbeen enabled.(See parameter “P6.13”.)DANGER5 MIN
