Lenze ESMD371L4TXA Single-Axis Drive Overview
Industrial motor control demands precision, reliability, and seamless integration. The Lenze ESMD371L4TXA delivers these qualities in a compact, NEMA-housed unit designed for single-axis applications. With a rated power of 0.37 kW (0.5 HP) and an electrical supply of 1~ 230 V AC, this drive suits light-to-medium duty machinery where space and efficiency matter.
Built with a NEMA housing, the ESMD371L4TXA protects internal components from dust and incidental contact, aligning with its IP20 degree of protection. This enclosure rating means the unit is best installed in clean, dry control cabinets—not exposed to moisture or heavy contaminants. The drive carries CE, cULus, and C-Tick approvals, confirming compliance with international safety and electromagnetic compatibility standards.

Technical Specifications Breakdown
Key parameters for the ESMD371L4TXA are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Omron |
| Product Line | Other |
| Part Number | ESMD371L4TXA |
| Enclosure Type | NEMA Housing |
| Electrical Supply | 1~ 230 V AC |
| Rated Power | 0.37 kW (0.5 HP) |
| Input Phase | 1(3)/N/PE AC |
| Output Frequency Range | 0 - 500 Hz |
| Rated Output Current | 2.2 A |
| Motor Output | Single axis |
| Degree of Protection | IP20 |
| Supply Concept | Single-axis (mains supply) |
| Network Protocol | Modbus, LECOM |
| Approval | CE, cULus, C-Tick |
Industry Applications
Conveyor Systems
In packaging and assembly lines, the ESMD371L4TXA provides precise speed control for conveyor belts. Its 0-500 Hz output frequency range allows fine-tuned adjustments to match production rates, while the 2.2 A continuous current handles typical small-geared motors.
Pump and Fan Control
For HVAC or light industrial pumps, this drive offers reliable variable-speed operation. The single-axis supply concept simplifies wiring, and the Modbus protocol enables remote monitoring via PLC or SCADA systems—reducing energy consumption and extending equipment life.
Material Handling Equipment
Lift tables, diverters, and small hoists benefit from the drive's compact size and robust NEMA housing. The IP20 rating ensures safe operation inside control panels, while LECOM protocol support allows integration with legacy Lenze networks.

Installation & Setup Guidance
Mount the ESMD371L4TXA in a clean, dry enclosure with adequate ventilation. Maintain clearance around the unit for airflow, as IP20 does not seal against dust ingress. Connect the input phase according to the 1(3)/N/PE AC configuration, ensuring the supply voltage matches 1~ 230 V AC. Use appropriate fusing and disconnects per local electrical codes.
For motor wiring, verify that the motor's rated current does not exceed 2.2 A. Set the output frequency parameters within the 0-500 Hz range to suit the motor's speed-torque curve. When using Modbus or LECOM, terminate the network properly and set unique node addresses to avoid communication conflicts.
Maintenance & Reliability
Periodically inspect the drive for dust accumulation on heatsinks and connectors. Because the IP20 enclosure offers limited protection, keep the surrounding environment free of conductive debris. Check all terminal connections for tightness every six months, especially after initial commissioning.
Monitor operating temperatures; if the drive frequently trips on overcurrent, verify that the motor and load are within specifications. The ESMD371L4TXA has no user-serviceable internal parts—do not open the housing. For any internal issues, contact a qualified service technician.
Compatibility & Integration
The ESMD371L4TXA supports both Modbus and LECOM protocols, making it versatile for new installations and retrofits. Modbus RTU over RS-485 is common in modern PLC environments, while LECOM is a Lenze proprietary protocol often found in existing systems. This dual-protocol capability reduces the need for protocol converters, simplifying integration.
As a single-axis drive, it pairs directly with one motor. The supply concept (mains supply) means it can be powered directly from the AC line without a separate DC bus. This simplifies panel design and reduces component count.
Selection Guide & Purchasing Advice
When selecting a drive, confirm that the rated power (0.37 kW) matches your motor's full-load rating. Check the input voltage availability at your facility—1~ 230 V AC is standard in many regions. Verify that the output current (2.2 A) is sufficient for your motor's starting and running current.
If you need a replacement or a new unit, AutoDCSTech offers the ESMD371L4TXA with fast shipping. Our team can help verify compatibility with your existing system. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Troubleshooting & Common Issues
If the drive does not power up, check the input supply voltage and fuses. Ensure that the phase configuration matches 1(3)/N/PE AC. If the motor runs erratically, verify that the frequency setpoint is within 0-500 Hz and that the motor is properly connected.
Communication errors often stem from incorrect wiring or address settings. Double-check the Modbus/LECOM connections and parameter settings. If the drive trips on overcurrent, inspect the motor and load for mechanical binding or short circuits. Always follow safe lockout/tagout procedures before inspecting wiring.
Availability & Condition at AutoDCSTech
| Part Number | ESMD371L4TXA |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | Germany |
