Lenze 00411956 MDFKABA090-22 Asynchronous AC Servo Motor
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Product Information
The Lenze 00411956 (MDFKABA090-22) is an asynchronous AC servo motor within the MDFK product family, engineered for continuous dynamic positioning and speed control in industrial motion applications. Built in a standard 90 mm frame size with an IP54-rated protective enclosure, this motor features active thermal management via an integrated axial cooling fan. This forced-ventilation setup enables sustained continuous output across broad speed ranges. The unit delivers a rated power output of 3.5 kW, a nominal torque of 11 Nm, and operates at rated speeds up to 3000 rpm with an 8.5 A nominal current rating.
Integrating the MDFKABA090-22 into an automated production machine requires connecting the main motor power cables, feedback wiring for the resolver or encoder, and dedicated electrical power lines for the external axial fan. The motor operates in conjunction with Lenze drive platforms, including 9300 Servo Drives, Servo Drives 9400, and i700 Servo Inverters. Replacing an existing unit involves calibrating or downloading motor parameter profiles using software tools such as Lenze EASY Starter or Global Drive Control to ensure proper feedback configuration and control response. ABC Industrial Parts can assist maintenance teams with sourcing verified replacements and supporting drive alignment during machine commissioning.
Operating parameters and motor status are monitored primarily through the connected Lenze servo drive. Initial troubleshooting on the motor can be conducted using physical field measurements, such as testing phase-to-phase winding resistance and insulation resistance across terminals U, V, and W, or checking sensor resistance across the integrated PTC thermistor and TK thermal contact terminals. Internal insulation breakdowns or stator winding damage cannot be serviced in the field, making unit replacement or overhaul the standard path to restoring operational stability. ABC Industrial Parts provides tested replacement units to support rapid turnaround for critical production lines.
Technical Specifications
| Motor Type | Asynchronous AC Servo Motor |
| Cooling Type | Forced ventilation (axial fan) |
| Frame Size | 90 mm |
| Rated Speed | 3000 rpm |
| Rated Torque | 11 Nm |
| Rated Power | 3.5 kW |
| Rated Current | 8.5 A |
| Protection Rating | IP54 |
| Thermal Protection | PTC thermistor / Thermal contact (TK) |
Programming and Configuration
Parameter setup and motor configuration for the Lenze 00411956 (MDFKABA090-22) are managed through the connected Lenze drive inverter using engineering software tools such as Lenze EASY Starter or Global Drive Control. Motor dataset profiles, current limits, rated speed, and feedback parameters are stored in the drive controller memory to align with the motor's operational design.
When commissioning a replacement motor, technicians must verify that the feedback calibration and thermal sensor evaluation parameters in the drive match the motor specs. Using EASY Starter software, commissioning engineers can test axis movement, verify speed controller response, and ensure thermal limits are properly recognized before running continuous duty cycles.
Communication and System Integration
The MDFKABA090-22 connects to the machine system through individual interface termination points for power feed, feedback signals, and fan power. Power cables connect directly to motor phase terminals U, V, W, while feedback signals pass through encoder or resolver cabling directly to the servo inverter.
Designed for system compatibility across Lenze automation architectures, the motor operates seamlessly alongside Lenze 9300 Servo Drives, Servo Drives 9400, and i700 Servo Inverters. Fieldbus network integration and motion sequences are controlled directly at the drive level, which reads motor feedback and thermal sensor signals to maintain exact speed and torque control in packaging, textile, and material handling systems.
Diagnostics and Status Indication
Diagnostic observation for the Lenze 00411956 (MDFKABA090-22) is performed using the diagnostic monitoring tools in Lenze EASY Starter or Global Drive Control connected to the drive inverter. Real-time measurements including drive output current, speed feedback, and thermal overload status allow technicians to evaluate motor performance under load.
Direct physical diagnostics on the motor involve basic electrical verification checks. Technicians can measure phase-to-phase winding resistance and insulation resistance across terminals U, V, and W, or check continuity and resistance values on the PTC thermistor and TK terminals to verify thermal protection circuit function prior to applying power.
Replacement and Spare Part Considerations
Replacing an existing Lenze 00411956 motor requires verifying mechanical and electrical compatibility. With its standard frame size 090 housing and IP54 rating, the MDFKABA090-22 serves as a direct drop-in replacement for existing machinery axes in continuous operation, such as packaging machinery, textile processing, and automated material handling lines.
During installation, technicians must ensure that the separate power connection for the axial forced-ventilation fan is properly wired and operational. Parameter sets within the connected Lenze 9300, 9400, or i700 drive inverter must also be checked or loaded using Lenze EASY Starter to prevent motor overtemperature conditions or drive fault trips upon startup.
Frequently Asked Questions
What software tools are used to commission the Lenze 00411956 motor?
Motor setup and parameter calibration are performed using Lenze EASY Starter or Global Drive Control software connected to the host drive inverter.
Which Lenze drive series are compatible with the MDFKABA090-22?
This motor is compatible with Lenze 9300 Servo Drives, Servo Drives 9400, and Lenze i700 Servo Inverters.
How is thermal protection integrated into the motor?
Thermal protection is provided by built-in PTC thermistor and thermal contact (TK) sensors wired to the drive's thermal evaluation input, paired with continuous forced ventilation from an integrated axial cooling fan.
What physical tests can be performed to check the motor condition?
Technicians can measure winding resistance and insulation resistance across phases U, V, and W, as well as test sensor resistance across the PTC and TK terminals.
Does the forced-ventilation fan require a separate connection?
Yes, the integrated axial cooling fan requires a separate power supply connection to maintain constant active cooling across all operating speeds.
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