Lenze 00460632 ESMD371X2SFA smd Frequency Inverter
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Product Information
The Lenze 00460632 ESMD371X2SFA is a compact frequency inverter from the Lenze smd Series designed for controlling three-phase AC motors up to 0.37 kW (0.5 HP). Powered by a single-phase 230 V AC supply spanning 180 to 264 V AC at 48 to 62 Hz, this variable frequency drive delivers a three-phase output up to 230 V AC with a continuous output current rating of 2.4 A and an output frequency range of 0 to 240 Hz. Operating via linear or quadratic V/f control profiles within an IP20 cabinet enclosure, the drive features an integrated EMC filter to ensure electromagnetic compliance in commercial packaging equipment, conveyor systems, small centrifugal fans, and pumps.
Control wiring connects through four programmable digital inputs, one programmable analog setpoint input accepting 0-10 V, 0-20 mA, or 4-20 mA signals, and one programmable relay output rated for 250 V AC at 3 A. Commissioning a replacement unit is streamlined by Lenze Electronic Programmable Module (EPM) technology. Operational parameters are held on a pluggable memory module that can be removed from a failed inverter and installed directly into a spare drive, transferring configuration without applying main power or attaching serial communication cables. For off-line configuration adjustments or cloning, the unit supports the EEPM1RA EPM programmer. Technical support from ABC Industrial Parts can assist when backup verification or parameter migration is required.
Operating conditions, output frequency, and trip states are displayed locally on an integrated 3-digit LED segment display alongside the fault relay output contact. Diagnostic indications cover system trips such as thermal overload (F2, F3, F4), overcurrent or output shorts (F5), DC bus voltage boundaries (F6, F7), and configuration memory faults (CFg, EEr). While external issues like line voltage fluctuations or mechanical binding can be cleared during initial maintenance checks, internal faults like micro-controller failure (InF) or output stage hardware breakdown (F9) are not field-serviceable. When internal board failures prevent operation, repair or a tested exchange unit from ABC Industrial Parts offers a fast path back to full production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 00460632 |
| Model / Type | ESMD371X2SFA |
| Product Family | smd Series |
| Component Type | Frequency Inverter |
| Rated Power (kW) | 0.37 kW |
| Rated Power (HP) | 0.5 HP |
| Nominal Supply Voltage | 230 V AC |
| Supply Voltage Range | 180 - 264 V AC |
| Supply Phase | 1-Phase |
| Supply Frequency | 48 - 62 Hz |
| Output Voltage Range | 0 - 230 V AC |
| Output Phase | 3-Phase |
| Continuous Output Current | 2.4 A |
| Output Frequency Range | 0 - 240 Hz |
| Switching Frequency | 4 kHz |
| Control Method | V/f Control (Linear or Quadratic) |
| Protection Rating | IP20 |
| EMC Filter | Integrated |
Programming and Configuration
Parameter structure and memory management on the Lenze ESMD371X2SFA frequency inverter depend on the removable Electronic Programmable Module (EPM). The EPM stores all application settings, motor performance curves, and digital I/O assignments in non-volatile memory. Parameters can be altered directly at the drive using the integrated 3-digit LED keypad display or modified offline using the optional EEPM1RA handheld EPM programmer.
When commissioning a spare drive, transferring the installed EPM module from the existing unit loads all configured parameters immediately without requiring external software tools or live power to the drive. If memory corruption occurs or a configuration fault (CFg) is triggered during setup, parameter reset to factory default state can be performed by setting parameter P199 to 1 prior to reprogramming.
Communication and System Integration
Physical control integration with system automation is established through discrete terminal connections. The ESMD371X2SFA provides four programmable digital inputs for start, stop, direction, and multi-step frequency control. An analog setpoint input is integrated to accept standard control signals, switchable between 0-10 V DC, 0-20 mA, or 4-20 mA current loops for dynamic speed reference adjustments.
System status signaling is facilitated through a programmable relay output contact rated for 250 V AC at 3 A. Designed for tight panel layouts, the unit incorporates an integrated EMC filter that reduces high-frequency line interference and complies with industrial noise limits without requiring additional footprint space for external filter blocks.
Diagnostics and Status Indication
Local drive status and operational monitoring are handled by the 3-digit LED segment display on the front face of the unit. The display presents operational indicators such as STOP or ready (rdy), dynamic output frequency values during operation, and active fault codes when a trip condition occurs.
In addition to visual diagnostic displays, remote fault signaling occurs via the integrated relay output contact. Off-line diagnostic inspection and parameter evaluation can also be performed through the EEPM1RA EPM programmer interface.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| 3-Digit LED Display | Red/Green LED segment display - Numerical / Text display | Displays operational status (e.g., STOP, rdy), output frequency, or current fault code. |
Replacement and Spare Part Considerations
When selecting a replacement for a Lenze 00460632 inverter, verify that the input line voltage and phase match the installation requirements. Model ESMD371X2SFA operates on single-phase 230 V AC power (180 to 264 V AC range) and supplies three-phase output current up to 2.4 A to drive fractional horsepower AC motors up to 0.37 kW (0.5 HP).
Configuration transfer during drive replacement is simplified by swapping the pluggable Electronic Programmable Module (EPM) from the original unit directly into the replacement inverter. Because parameter settings reside within the EPM, transferring the chip clones the complete control structure without necessitating software cables or laptop connection routines.
The Lenze smd series represents legacy hardware. For long-term facility planning or retrofits where legacy inventory is being upgraded, the recommended successor series is the Lenze i510 cabinet frequency inverter line, specifically model i51AE137B.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| CFg | Configuration Error | EPM contains invalid or corrupted parameter data for the installed power section. | Blank EPM installed, EPM from different power rating inserted, or corrupted parameter memory. | Check EPM insertion, load factory defaults (P199 = 1), or reprogram EPM with correct drive parameters. |
| cEr | Communication Error | Loss of communication signal on control interface. | Control wiring fault or interface noise. | Check control wiring and shielding connections. |
| cL | Current Limit Reached | Motor current has reached the programmed current limit threshold. | Mechanical overload, rapid acceleration, or incorrect motor parameters. | Reduce motor load, extend acceleration time, or check motor parameter settings. |
| dec | Deceleration Override / Overvoltage Protection Active | Inverter has extended deceleration time automatically to prevent DC bus overvoltage. | Deceleration ramp time set too short for high load inertia. | Increase deceleration time parameter. |
| EEr | EPM Read/Write Error | Failure reading from or writing to the EPM chip. | Bad electrical contact in EPM socket, damaged EPM module, or removal while powered. | Re-seat EPM module securely. If error persists, replace the EPM module. |
| F1 | External Fault | Digital input assigned to external trip function was activated. | External fault sensor or safety circuit opened. | Inspect external sensor circuit connected to digital input. |
| F2 | Motor Overload (I²t Trip) | Calculated motor thermal load exceeded maximum threshold. | Continuous motor operation at low speed under heavy load, incorrect thermal setting. | Allow motor to cool down, check motor cooling fan, verify load condition and motor current ratings. |
| F3 | Motor PTC Overtemperature | Motor thermistor input exceeded trip resistance value. | Motor overheating due to excessive load, poor cooling, or ambient heat. | Inspect motor cooling, check mechanical load, allow motor to cool before resetting trip. |
| F4 | Inverter Overtemperature | Heatsink temperature exceeded internal maximum limit. | Inadequate enclosure ventilation, clogged heatsink, cooling fan fault, high ambient temperature. | Clean drive heatsink fins, ensure adequate cabinet ventilation, verify ambient temperature. |
| F5 | Overcurrent / Output Short Circuit | Output peak current threshold exceeded. | Short circuit or ground fault at motor terminals/cable, motor winding breakdown, acceleration time too short. | Check motor wiring and insulation, verify motor winding resistance, extend acceleration time. |
| F6 | DC Bus Overvoltage | DC bus voltage exceeded internal high voltage threshold. | Excessive regenerative energy from motor during deceleration, high supply line voltage. | Increase deceleration time ramp or check AC line input voltage. |
| F7 | DC Bus Undervoltage | DC bus voltage dropped below lower operating threshold. | Line voltage drop, supply phase loss, power interruption, brownout. | Check incoming AC supply voltage and fuse integrity. |
| F8 | Internal Hardware Fault | Control board self-diagnostic failure. | Internal electronic components malfunction or failure on power/control PCB. | Internal hardware fault — power cycle drive; if persistent, return unit for repair or replace inverter. |
| F9 | Power Section Hardware Error | Failure detected in power transistor output stage or current sensing logic. | Internal power bridge failure. | Internal hardware fault — return unit for repair or replace inverter. |
| FOp | Input Phase Loss | Missing AC input line phase detected. | Loose AC line power wiring or blown main fuse. | Check AC power connections and line voltage across all input terminals. |
| InF | Internal Fault | Internal micro-controller hardware error or corrupted internal EEPROM. | Board level failure or severe electromagnetic interference. | Internal hardware fault — power cycle drive; if fault persists, return unit for repair. |
| Lu | Low Voltage Warning / Lockout | Input voltage is below minimum required threshold for drive operation. | Mains supply brownout or line voltage drop. | Verify line input voltage is within 180-264 V AC rating. |
Frequently Asked Questions
How do I transfer drive parameters when replacing a Lenze ESMD371X2SFA inverter?
Parameter configurations are transferred by removing the physical Electronic Programmable Module (EPM) chip from the original drive and inserting it into the replacement inverter socket. The EPM transfers all parameters automatically without needing live mains power.
What does the CFg fault code indicate on the ESMD371X2SFA display?
The CFg fault code indicates a configuration error where the EPM module contains corrupted data or parameters unsuited for the inverter's power rating. This can be resolved by checking EPM seating, resetting to factory defaults using parameter P199 = 1, or reprogramming the module.
What AC supply voltage range does the Lenze 00460632 drive accept?
The Lenze 00460632 operates on a single-phase AC supply voltage ranging from 180 to 264 V AC at a supply frequency of 48 to 62 Hz.
Does the Lenze ESMD371X2SFA require an external EMC noise filter?
No, the ESMD371X2SFA incorporates an integrated EMC filter that supplies required line noise suppression directly inside the compact IP20 housing.
What is the recommended modern successor for the Lenze 00460632 drive?
The recommended modern migration successor for the legacy Lenze smd 00460632 inverter is the Lenze i510 cabinet frequency inverter, model i51AE137B.
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