Frequency Inverters M-Max™

The universal for mechanical engineering



The M-Max™ series frequency inverters allow drives to be adapted easily to customer requirements. With a compact design for assigned motor ratings from 0.25 kW to 7.5 kW, M-Max™ can offer maximum flexibility.

M-Max™ also demonstrates how a high level of functionality can be implemented in a simple and user-friendly design. The small and compact book format design also allows a space saving installation. M-Max™ is provided with an integrated RFI filter (EMC) and a flexible interface for solving important machine building requirements, for example, the optimization of production and manufacturing processes. It reliably ensures the required motion sequences of the drive motor and thus contributes to operational safety.

System features

  • Quick to commission with quick start assistants using preset application parameters
  • Comprehensive diagnostic display
  • Integrated RFI filter (EMC: C2 and C3 compliant to IEC/EN61800-3)
  • Dynamic motor control with sensorless vector control or V/f control (switchable)
  • Integrated display and operating unit
  • Electronic setpoint potentiometer
  • Fixed frequencies
  • PI controller
  • PID controller
  • Integrated braking unit (on the MMX34 in the sizes FS2 and FS3)
  • 6 digital control inputs (24 V DC, adjustable logic)
  • 1 digital output (transistor, 24 V DC, 50 mA)
  • 2 analog inputs (0…10 V DC / 0/4…20 mA, adjustable)
  • 1 analog output (0…10 V)
  • 2 relays (1 x N/O, 1 x C/O, 230 V AC, 2 A)
  • Thermistor input
  • Serial interface (RS485 / Modbus RTU)
  • Optional fieldbusses
  • International standards (CE, UL, cUL, c-Tick).

Rating range

Mains connection
1~ (208 … 240 V, +10/-15 %) 0.25 … 2.2 kW 1 x 230 V, 50/60 Hz
3~ (380 … 480 V, +10/-15 %) 0.37 … 7.5 kW 3 x 400 V, 50/60 Hz

How to choose ...

A complete selection guide with all types and accessories of the "Frequency Inverters" can be found in our Industrial Automation Product Overview: Solutions for Motor Applications and Power Distribution or in the Selection aid: frequency inverter.