Lenze MDXMA1M090-32 m500 IE3 Three-Phase AC Motor
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Product Information
The Lenze MDXMA1M090-32 is a 4-pole three-phase AC motor belonging to the m500 series of high-efficiency industrial drives. Operating as an IE3 Premium Efficiency motor, it provides a rated power output of 1.5 kW and delivers 9.9 Nm of torque at a nominal speed of 1445 rpm on a standard 50 Hz power supply. Built into an IEC frame size 090 housing with an IP55 protection rating, this motor is designed to withstand dust and low-pressure water ingress while achieving an efficiency level of 85.3% and a power factor of 0.81.
Connecting and installing the MDXMA1M090-32 involves wiring through a rugged terminal box equipped with M20 and M25 cable gland entries. The motor accommodates dual-voltage supply configurations of 230 V in Delta mode or 400 V in Star mode at a rated current of 3.3 A, enabling direct mains operation or speed control via frequency inverters such as the Lenze i550 or 8400 series. When integrated with variable frequency drives in an 87 Hz field-weakening setup, the motor output scales up to 2.2 kW for higher performance requirements. Putting a spare motor into operation requires setting up drive motor parameters using software tools like Lenze EASY Starter or EASY Product Finder to match the application profile, with ABC Industrial Parts supplying tested replacements to maintain process continuity.
Thermal monitoring is handled through integrated PTC thermistor contacts within the motor windings, which report overtemperature conditions directly to external drive controllers or safety relays. Diagnostic feedback and operational status can be monitored electronically when connected to Lenze inverters via EASY Starter or PLC Designer tools. First-line troubleshooting for suspected motor faults should include checking mains supply balance, verifying terminal box bridge jumpering for Star or Delta wiring, confirming thermal sensor contact continuity, and inspecting external cable connections. If internal winding breakdown or mechanical bearing failure occurs, internal repairs are not field-serviceable, making unit replacement or professional overhaul by ABC Industrial Parts the most efficient path back to full production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | MDXMA1M090-32 |
| Model / Type | MDXMA1M090-32 |
| Component Type | AC Motor |
| Product Family | m500 Three-Phase AC Motors |
| Rated Power | 1.5 kW |
| Rated Torque | 9.9 Nm |
| Rated Speed | 1445 rpm |
| Supply Voltage | 230/400 V AC |
| Rated Current | 3.3 A |
| Supply Frequency | 50 Hz |
| Number of Poles | 4 |
| Efficiency Class | IE3 |
| Efficiency | 85.3 % |
| Power Factor | 0.81 |
| Frame Size | IEC 090 |
| Ingress Protection | IP55 |
Programming and Configuration
Configuring the Lenze MDXMA1M090-32 motor for inverter operation is streamlined through Lenze EASY Starter and EASY Product Finder software packages. When operating with drive controllers such as the Lenze i550 or 8400 series, the software supports automated parameter identification routines that establish proper motor model characteristics, stator resistance, and thermal thresholds within the drive memory.
For advanced automated control systems programmed via PLC Designer, drive parameters can be tuned to optimize dynamic response and thermal tracking. Setting the correct voltage ratio and enabling thermal PTC contact evaluation within the drive setup ensures precise speed regulation while preventing winding damage during continuous-duty operational cycles.
Communication and System Integration
The MDXMA1M090-32 provides versatile electrical integration into standard three-phase industrial networks, operating on 230/400 V AC at 50 Hz. Its standard terminal arrangement allows fast wiring transition between Delta configuration for 230 V operation and Star configuration for 400 V operation. Heavy-duty M20 and M25 cable gland ports provide secure cable entry for power lines and thermal monitoring signals.
When connected to variable frequency drives like the Lenze i550 or 8400 series, the motor supports 87 Hz field weakening mode. This configuration allows the unit to run at elevated frequency and voltage levels to deliver up to 2.2 kW output power without increasing physical motor frame dimensions, making it suitable for compact industrial drive systems, conveyor drives, pump installations, and ventilation blowers.
Diagnostics and Status Indication
Thermal diagnostic monitoring for the MDXMA1M090-32 is provided by built-in PTC thermistors embedded within the motor windings. These sensors signal overtemperature states to connected frequency inverters or safety relays to trip power before heat damage occurs. Detailed operational diagnostics, drive current draw, and speed performance can be evaluated using Lenze EASY Starter or PLC Designer software connected to the controlling drive.
Replacement and Spare Part Considerations
When substituting an existing unit with a replacement MDXMA1M090-32, maintenance personnel must confirm physical alignment with IEC frame size 090 mounting dimensions and verify that mechanical load couplings match the shaft geometry. Ensure that terminal box jumpers are correctly positioned for either 230 V Delta or 400 V Star operation according to the line supply or drive configuration.
It is critical to wire the integrated PTC thermal contacts to the frequency inverter or protective relay thermal input prior to energizing the unit. If replacing a motor used in an 87 Hz field-weakening setup, ensure the replacement motor parameter profile in the drive is verified using Lenze EASY Starter to match the 2.2 kW power setting and maintain system calibration.
Frequently Asked Questions
What are the key power and speed specifications of the Lenze MDXMA1M090-32?
The motor delivers 1.5 kW rated output power with 9.9 Nm torque at 1445 rpm on a 50 Hz supply, featuring an IE3 efficiency rating of 85.3% and a 4-pole configuration.
What voltage configurations does the MDXMA1M090-32 support?
It supports dual-voltage AC operation at 230 V in Delta connection and 400 V in Star connection, with a rated current of 3.3 A at 50 Hz.
Can the Lenze MDXMA1M090-32 be operated with a frequency inverter?
Yes, it is fully compatible with frequency inverters such as the Lenze i550 and 8400 series. When operated in 87 Hz field-weakening mode via an inverter, its output power increases to 2.2 kW.
How is thermal protection implemented on this motor?
The motor incorporates built-in PTC thermal winding contacts in the terminal box that connect to external drive controllers or safety relays to signal overtemperature conditions.
Which software tools are used to commission this motor with Lenze drives?
Commissioning, parameter identification, and diagnostic monitoring are supported using Lenze EASY Starter, EASY Product Finder, and PLC Designer software tools.
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