Motor-integrated frequency converters of the DMC series
The motor-integrated frequency converters of the DMC series are compact frequency converters for axial installation in the motor housing. Applied customer-specifically, they can be integrated into every motor. Both the signal connections and the power connections can be adapted to your application.
Due to the implementation of various algorithms, they are able to control permanent magnet synchronous motors, asynchronous motors, BLDC motors and switched reluctance motors, for example. These motors can be operated with the help of an encoder or sensorless.
The motor-integrated frequency converters of the DMC series cover a wide range of performance classes.
The compact frequency converter series DMC is e.g. suitable for fans in stationary and mobile applications, compressors and pumps.
Advantages of the motor-integrated frequency converters from EAAT
Due to their compact design, the motor-integrated frequency converters from EAAT can be installed in a wide variety of motor types. Our solutions are characterized by their application to customer-specific motor solutions. Our products cover a power range from 1 to 7.5 kW.
Our converters combine modern power electronics and control technology with flexibility and individuality.
Technical Data
Hardware
| Mains input voltage | 3 x 400 V ±10 %, 50/60 Hz (more on request) One-phase networks in implementation |
| Output power | 1,0 kW 2,0 kW 3,5 kW bis 7,5 kW in implementation |
| Nominal output current (at 3 x 400 V-mains input voltage) |
1,0 kW: 1,7 A (effektiv) 2,0 kW: 3,4 A (effektiv) |
| Output voltage | Up to approx. 82% of mains input voltage |
| Output frequency | 0 ... 320 Hz |
| Overload | 1,2x for 10 s within 10 min |
| PWM frequency | 8 ... 15 kHz |
Interfaces
| Position encoder | 1 Hall sensor or sensorless |
| Temperature sensor of motor | PTC |
| Interface | 1x analog setpoint (0-10 VDC or PWM with f > 1kHz) 10 V-Output (max. 6 mA) for connecting a setpoint potentiometer 1x Status relay (change-over contact) Configuration via USB interface adapter Optional: 3x digital Inputs (e.g. for separate enable / reset) RS485 or Modbus RTU (Library file DLL available) additional analog input quasi-analog PWM output |
| Motor contacting | Insulation displacement connectors or connectors |
Environmental conditions
| Working temperature range | 0 ... 40 °C |
| Relative humidityt | up to 90 %, without condensation |
| Working height | up to 1000 m above sea level |
| Degree of pollution (without housing) | 1 |
| Degree of protection (with housing) | IP54 |
Software
| Commutation | Field-oriented control PWM via space vector control sinusoidal commutation |
| Motor types | permanent magnet synchronous machines BLDC motors Asynchronous machines more on request |
| Possible operating modes | Voltage control Speed control Pressure control current control Speed control with subordinate current control Pressure control with subordinate current control |
| Monitoring function | Short circuit protection (output) Overcurrent Overvoltage (DC-link) Undervoltage (DC-link) Phase failure Overtemperature (motor, electronics) Blocking protection |
| Improved error analysis | Max hold functions of temperatures, voltages, power and current Error memory for the last 4 errors, beyond group error in addition, collective errors |