Lenze 00460576 ESMD5524TMF AC Tech SMD Frequency Inverter 5.5kW
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Product Information
The Lenze 00460576 (Model ESMD5524TMF) is a 5.5 kW (7.5 HP) 3-phase variable frequency drive belonging to the Lenze AC Tech SMD drive family. Designed for precise motor speed control, this sub-micro frequency inverter operates with a rated supply voltage of 400 V AC across a wide input tolerance range of 320 to 528 V AC, delivering up to 13 A continuous output current. The MF model designation indicates an integrated EMC filter, which minimizes high-frequency electrical noise while conserving space inside the control cabinet. The drive utilizes a V/f control method supporting both linear and quadratic torque applications, such as conveyors, industrial fans, pumps, mixers, and packaging equipment.
System connectivity and commissioning are managed through onboard control interfaces and physical memory hardware. The ESMD5524TMF features 4 programmable digital inputs, 1 relay output, 1 configurable analog input supporting 0-10V, 0-20mA, or 4-20mA signals, and an RS-485 serial port supporting Modbus RTU and Lenze LECOM protocols. At the center of parameter management is a pluggable blue Electronic Programmable Module (EPM), an EEPROM chip that holds full drive parameters. Setting up a spare unit rarely requires live commissioning from scratch; instead, drive parameters can be pre-programmed off-line or duplicated from an existing unit using the Lenze EEPM1RA EPM Handheld Programmer or Global Drive Control (GDC) software. ABC Industrial Parts can support technical teams in sourcing compatible replacement drives and managing parameter transfer workflows.
Comprehensive diagnostic tools and status indications are accessible directly from the unit's front interface. An integrated 3-digit LED display and keypad allow real-time monitoring of output frequency, motor voltage, DC bus voltage, and output current, while also displaying active fault codes ranging from F01 to F12 and memory errors such as cF. Initial field troubleshooting should focus on line power consistency, motor wiring integrity, cable grounding, and serial communication timeout settings. When internal hardware errors like F08 or F12 occur, internal circuit components are not field-serviceable; replacing the unit or sourcing a fully tested exchange drive through ABC Industrial Parts provides a reliable solution to resume production quickly.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 00460576 |
| Model / Type | ESMD5524TMF |
| Component Type | Frequency Inverter |
| Product Family | AC Tech SMD |
| Rated Power | 5.5 kW (7.5 HP) |
| Nominal Supply Voltage | 400 V AC |
| Supply Voltage Range | 320 - 528 V AC |
| Continuous Output Current | 13 A |
| Rated Input Current | 14.2 A |
| Output Frequency Range | 0 - 500 Hz |
| Switching Frequency | 10 kHz |
| Control Method | V/f Control (Linear / Quadratic) |
| Integrated EMC Filter | Yes |
| Digital Inputs | 4 |
| Digital Relay Outputs | 1 |
| Analog Inputs | 1 (0-10V, 0-20mA, 4-20mA) |
| Communication Protocols | RS-485 (Modbus RTU / Lenze LECOM) |
Programming and Configuration
Parameter management for the Lenze ESMD5524TMF revolves around the Electronic Programmable Module (EPM), a removable EEPROM memory chip accessible on the front panel. All drive settings, acceleration/deceleration ramps, and control profiles are written directly to this chip. Using the dedicated Lenze EEPM1RA EPM Handheld Programmer, maintenance personnel can clone parameter sets between drive modules or program blank chips off-line without applying main power to the inverter.
Local drive parameterization and monitoring can also be performed through the integrated 3-digit LED control panel. Essential parameters, such as acceleration ramp time (P104), deceleration ramp time (P105), motor current protection thresholds (P108), and diagnostic readout parameters in the P100 series, are easily adjusted via the keypad. For centralized engineering, parameters can be transferred via RS-485 using Lenze Global Drive Control (GDC) software.
Communication and System Integration
The Lenze 00460576 drive is equipped with an integrated RS-485 serial interface designed for network integration with PLCs and higher-level control systems. The interface natively supports Modbus RTU and Lenze LECOM serial communication protocols, allowing real-time speed referencing, drive status polling, and remote control over a single twisted-pair network line.
Physical control connections are established through onboard input/output terminals. The unit provides 4 programmable digital inputs for start/stop, direction, and trip functions, 1 relay output for status signaling, and 1 configurable analog input capable of operating with 0-10V voltage signals or 0-20mA / 4-20mA current loops. These interfaces allow direct integration into conveyor systems, packaging machinery, HVAC fan controls, and pumping stations.
Diagnostics and Status Indication
Real-time drive state and fault monitoring are provided via the front-panel 3-digit LED display. During standard operation, the display presents active operating parameters such as output frequency, output current, motor voltage, and DC bus voltage, mapped through the P100 status parameter group. When a protective shutdown occurs, the display holds the corresponding fault code to simplify fault isolation.
Remote diagnostics can be conducted over the RS-485 interface using Lenze Global Drive Control (GDC) software, which allows technicians to read fault history registers, monitor dynamic variable trends, and evaluate hardware status without opening control cabinets.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| DISPLAY | Active | 3-digit LED displays current operating frequency, parameter value, or fault code |
Replacement and Spare Part Considerations
When replacing an existing Lenze ESMD5524TMF frequency inverter, verify that the replacement part number matches 00460576 and contains the 'MF' designation. The integrated EMC filter ensures compliance with high-frequency noise standards without requiring extra mounting space for external filters. Confirming that the rated power (5.5 kW / 7.5 HP) and continuous output current (13 A) align with the installed motor nameplate prevents nuisance tripping.
Commissioning a replacement drive is straightforward when retaining the original unit's EPM module. By powering off the inverter and swapping the blue EEPROM chip into the replacement unit, all application settings, ramp times, and fieldbus parameters are instantly duplicated without requiring mains power or re-entry via the keypad. If a complete system modernization or retrofit is planned, Lenze recommends migrating to the modern i510 or i550 cabinet inverter series.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| F01 | Overcurrent | Output current exceeded instantaneous peak limit threshold. | Short circuit on output motor lead, acceleration time too short, motor stuck or overloaded. | Check motor and wiring for short circuit or earth fault; increase acceleration ramp time (P104); reduce motor load. |
| F02 | Earth Fault | Ground fault detected on output motor phases. | Motor cable insulation breakdown, ground fault in motor winding. | Check motor cable and motor windings for insulation resistance to ground. |
| F03 | Overvoltage | DC bus voltage exceeded maximum limit threshold. | Mains supply voltage too high, deceleration ramp time too short (regenerative energy). | Check input supply voltage; extend deceleration time (P105); install braking module/resistor if applicable. |
| F04 | Undervoltage | DC bus voltage fell below lower operating limit. | Mains supply voltage failure, supply voltage drop under load, missing input phase. | Check input mains voltage and supply fuses; verify line wiring. |
| F05 | Motor Overload (I2t) | Thermal motor protection (I²t monitoring) timed out due to sustained overload. | Motor operated at continuous high current or sustained low speed without external cooling. | Check mechanical load; check motor current settings (P108); allow motor to cool. |
| F06 | Inverter Overload | Frequency inverter thermal load limit exceeded. | Drive operated above continuous rated current for too long. | Reduce drive load; increase acceleration/deceleration times; check drive sizing. |
| F07 | Overtemperature | Drive heatsink temperature exceeded safe limit threshold. | Inadequate enclosure cooling, clogged heatsink, ambient temperature too high, fan failure. | Clean heatsink cooling fins; improve cabinet ventilation; verify ambient temperature is within limits. |
| F08 | Internal Hardware Error | Internal control board or hardware malfunction detected. | Internal circuit failure or severe electromagnetic interference. | Internal hardware fault — power cycle drive; if fault persists, return unit for repair or replace drive. |
| F09 | Motor Phase Failure | Missing output phase detected between drive and motor. | Disconnected motor cable, blown motor fuse, open circuit in motor winding. | Check connections and wiring between drive output terminals and motor terminals. |
| F10 | Serial Communication Fault | Communication failure over RS-485 / Modbus connection. | Baud rate mismatch, cable broken, interference, message timeout. | Check RS-485 serial communication wiring, shield grounding, and timeout settings. |
| F11 | External Trip | External fault condition triggered via digital input. | External trip signal assigned to digital input opened/activated. | Inspect external fault circuit connected to digital input. |
| F12 | Calibration Fault | Internal current sensing or voltage calibration error. | Internal measurement hardware failure. | Internal hardware fault — contact manufacturer service or replace unit. |
| cF | EPM Fault / Invalid Memory Data | EPM module missing, improperly inserted, corrupt, or unprogrammed. | Missing EPM chip, dirty contacts, blank EPM, or corrupted data during power off. | Power down drive, check EPM chip seating in socket; re-program or swap with valid EPM module. |
Frequently Asked Questions
How do I transfer parameters from a failed Lenze ESMD5524TMF to a replacement unit?
Parameters can be transferred instantly by powering down main supply power and swapping the blue Electronic Programmable Module (EPM) chip from the original drive into the replacement inverter. Alternatively, parameters can be loaded using the EEPM1RA handheld programmer or Lenze Global Drive Control (GDC) software via RS-485.
What does the 'MF' suffix mean on the ESMD5524TMF inverter?
The MF designation indicates that the drive features an integrated EMC filter. This filter reduces high-frequency electrical emissions without requiring additional external filter components or panel space.
What digital and analog I/O connections are available on the ESMD5524TMF?
The drive includes 4 programmable digital inputs, 1 digital relay output, and 1 configurable analog input that accepts 0-10V voltage signals or 0-20mA / 4-20mA current loops.
What does fault code cF mean on the display, and how can it be fixed?
Fault code cF indicates an EPM fault or invalid memory data. It occurs if the EPM module is missing, loose, blank, or corrupted. To fix it, isolate power, check that the EPM module is securely seated in its socket, and re-program or swap it with a valid EPM module if needed.
What action is required if fault code F08 or F12 is displayed?
Fault codes F08 (Internal Hardware Error) and F12 (Calibration Fault) indicate internal hardware failures. Power cycle the drive to see if the condition clears. If the code persists, internal components are not field-serviceable, and the drive must be repaired or replaced.
Which drive series is recommended for replacing or upgrading the legacy AC Tech SMD series?
For modern retrofits or upgrade paths, Lenze recommends transitioning to the i510 or i550 cabinet inverter series.
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