Integrated frequency inverters

MU Series

Frequency inverters extend the functions of three-phase motors. With their help, the universal drive machines can be operated flexibly. The design as decentralised devices, which are mounted directly on the motor, offers further advantages. Saving space in the control cabinet or simple wiring are just two of them. KEB utilises an extensive range of integrated frequency inverters that seamlessly fit in with the modular system of geared motors and motors.

Shaft-mounted geared motor with integrated frequency inverter F23D DM90SC4 MUB10

Helical geared motor with integrated frequency inverter G23A DM80K4 MUA08

Shaft mounted F23B DM90 SC
Bevel geared motor K02D DM71 G4
Helical G23a DM80 K4 B03

Highlights

Integrated inverter in the modular geared motor system
0.37 kW - 7.5 kW
High IP protection
Inverter directly in the field → short cable lengths

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Technical data

Supply voltage	1 x 230V	3 x 400V
Power class	MUM 0.37 - 1,5kW	MUA 0.55 - 1.5kW
		MUB 2.2 - 4kW
		MUC 5.5 - 7,5kW
Peak current	1.5 x I_n	1.5 x I_n

Options

Field bus

Various bus systems are available for communication with the control system or other devices:

EtherCAT
ProfiNET
ProfiBUS

Brake handling

The inverter controls a mechanical brake installed on the motor. The parameters for this can be varied via software.

Brake chopper / Brake resistor

In some applications, regenerative energy can overload the inverter. This energy can be redirected to a braking resistor via a brake chopper.

Functional safety STO

The MU inverters can be optionally equipped with the STO safety function. This reliably prevents the drive from starting up unintentionally.

Membrane keypad / Potentiometer

The inverter can be equipped with a membrane keypad or potentiometer for simple adjustment of the motor speed in the field. This eliminates the need for a separate control unit.