Lenze 13188648 ESMD371X2SFA smd Frequency Inverter 0.37kW
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Product Information
The Lenze 13188648 ESMD371X2SFA is a sub-micro frequency inverter from the Lenze smd series, engineered for speed control of three-phase AC induction motors rated up to 0.37 kW (0.5 HP). Operating on a single-phase 230 V AC supply ranging from 180 V to 264 V AC at 48 to 62 Hz, this drive delivers a three-phase 0 to 230 V AC output with a continuous current capacity of 2.4 A at an 8 kHz carrier frequency. Featuring linear and quadratic V/f characteristic control up to an output frequency of 500 Hz, the unit is built in a compact IP20 enclosure suitable for high packing density inside electrical enclosures. An integrated Class A EMC filter suppresses electromagnetic interference, eliminating external filter components across automated packaging machinery, conveyor drives, centrifugal pumps, and ventilation fans.
Control interfacing relies on three programmable digital inputs, one selectable analog input supporting 0 to 10 V DC or 0/4 to 20 mA signals, and one programmable relay output rated for 250 V AC at 3 A. Commissioning and transferring configurations between drives is handled via the front-mounted Electronic Programmable Module (EPM), a removable blue EEPROM memory chip storing all drive parameters. During replacement, maintenance personnel can transfer the EPM chip from a original inverter directly into a spare unit or duplicate settings using an optional handheld EPM programmer. This hardware-based parameter transfer allows instant parameter replication without demanding complex software setups, supported by ABC Industrial Parts for sourcing fully tested replacement units and hardware spares.
System status and operating conditions are displayed on an integrated front keypad featuring a 3-digit LED display that presents output frequency, parameter values, and active error codes. Initial diagnostic checks involve verifying the main AC supply voltage, checking motor wiring integrity, and confirming that the EPM module is seated correctly in its slot. The inverter actively indicates faults ranging from input undervoltage (F03) and motor overload (F04) to EPM read faults (F08). While parameter adjustments and external safety trip wiring can be managed in the field, internal hardware failures such as control board faults (F09) or CPU errors (CF) cannot be serviced on site, making drive replacement or tested exchange units from ABC Industrial Parts the fastest route back to production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 13188648 |
| Model / Type | ESMD371X2SFA |
| Product Family | Lenze smd |
| Component Type | Frequency Inverter |
| Rated Power Output | 0.37 kW |
| Horsepower Rating | 0.5 HP |
| Supply Voltage | 230 V AC (1-Phase) |
| Supply Voltage Range | 180 - 264 V AC (48 - 62 Hz) |
| Output Voltage Range | 0 - 230 V AC (3-Phase) |
| Continuous Output Current | 2.4 A |
| Output Frequency Range | 0 - 500 Hz |
| Switching Frequency | 8 kHz |
| Control Method | V/f Characteristic Control (Linear / Quadratic) |
| Digital Inputs | 3 Programmable |
| Analog Inputs | 1 Selectable (0-10 V DC, 0/4-20 mA) |
| Relay Outputs | 1 Programmable Relay (250 V AC, 3 A) |
| EMC Filter | Integrated Class A |
| Protection Rating | IP20 |
Programming and Configuration
Programming the Lenze ESMD371X2SFA frequency inverter centers on the plug-in Electronic Programmable Module (EPM) located on the front panel. All operational drive parameters, including acceleration ramps (parameter C01) and deceleration ramps (parameter C02), are retained in non-volatile memory on this blue EEPROM chip. Operating parameters can be modified directly using the built-in 3-digit LED keypad display or programmed offline using an optional Lenze handheld EPM programmer.
The drive provides configurable linear and quadratic V/f characteristic curves, adapting motor performance for constant torque applications like material handling conveyors or variable torque loads like centrifugal fans and pumps up to 500 Hz. If drive parameters become corrupted or need to be reset to factory default configuration, setting parameter C02 to 01 restores the factory parameter set stored in the drive.
Communication and System Integration
The Lenze 13188648 ESMD371X2SFA interfaces with automation systems using dedicated physical I/O terminals and option card fieldbus links. Standard control integration includes three programmable digital inputs for start, stop, or external trip commands, alongside one selectable analog input accepting 0 to 10 V DC or 0/4 to 20 mA signals for setpoint speed reference.
System signaling is managed via one programmable digital relay output rated up to 250 V AC at 3 A. When operating with an optional fieldbus communication module or serial connection, the drive monitors link health and generates a communication time-out fault (F10) if the signal connection to the master controller is interrupted.
Diagnostics and Status Indication
Diagnostic tracking for the ESMD371X2SFA drive is delivered through the front keypad 3-digit LED display. The display provides live operational data including output frequency, parameter indexes, and fault codes ranging from F01 through F12 as well as CPU control faults (CF). Technicians can review parameter history logs and inspect terminal logic states directly via monitoring parameters to verify drive response and control input signal levels.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| 3-digit LED Display | Red/Green - Active | Displays output frequency, parameter codes, parameter values, or fault error codes (F01–F12, CF) |
Replacement and Spare Part Considerations
When swapping a Lenze 13188648 ESMD371X2SFA frequency inverter, physical installation and electrical rating alignment are critical. Ensure the replacement drive matches the single-phase 230 V AC input specification, 0.37 kW (0.5 HP) output rating, and integrated Class A EMC filter designation. Because complete parameter profiles are stored directly on the blue EPM chip, moving the existing EPM module into the replacement drive transfers all parameters instantly without manual programming.
The Lenze smd series has reached phase-out status, making exact direct-replacement units important for maintaining existing panel layouts and control wiring. For facilities undergoing full equipment modernizations or upgrading control platforms, Lenze recommends migrating to the Lenze i510 or i550 cabinet frequency inverter series as current successor lines.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| F01 | Overcurrent | Drive output current exceeds maximum allowable threshold. | Short circuit or ground fault at motor output; acceleration ramp time too short; motor mechanically jammed. | Check motor wiring and insulation; increase acceleration time (parameter C01); check motor load. |
| F02 | Overvoltage | DC bus voltage exceeds upper limit during operation or deceleration. | Deceleration time too short (regenerative energy feedback from motor); input mains voltage too high. | Increase deceleration time (parameter C02); check mains voltage. |
| F03 | Undervoltage | DC bus voltage dropped below minimum operating limit. | Mains supply failure; supply voltage transient dip; phase loss on main power input. | Check main AC input power supply voltage and wiring connections. |
| F04 | Motor Overload | Integrated thermal motor overload protection (I x t calculation) triggered. | Motor operated at high load for extended duration at low speed. | Check motor sizing and mechanical load; verify motor thermal parameters in drive. |
| F05 | Inverter Overload / Over-temperature | Drive heatsink temperature exceeded allowable operating limit. | Insufficient ventilation; ambient temperature too high; continuous overload; cooling fins clogged. | Clean heat sink fins; ensure adequate enclosure ventilation; reduce switching frequency or load. |
| F06 | Motor Temperature Sensor Trip | Motor PTC / thermal contact activated. | Motor overheating. | Allow motor to cool down; inspect motor cooling fan and operating conditions. |
| F07 | External Fault | External fault signal triggered via assigned digital input. | Digital input configured for TRIP function opened or activated. | Inspect external safety circuit / trip wiring connected to the digital input. |
| F08 | EPM Error | Electronic Programmable Module memory fault or read error. | EPM chip missing, improperly seated, corrupted, or incompatible firmware version. | Power off drive, re-seat blue EPM module in slot, power on. If error persists, re-program EPM or replace chip. |
| F09 | Internal Hardware Fault | Control board hardware or internal power supply failure detected. | Internal component failure or board-level malfunction. | Internal hardware fault — non-field serviceable; return unit for repair or replace inverter. |
| F10 | Communication Time-Out | Communication failure with optional fieldbus module or serial link. | Bus cable disconnected, incorrect baud rate, or master controller timeout. | Check communication cable, baud rate settings, and bus master controller operation. |
| F12 | Parameter Fault | Invalid parameter combination or corrupted parameter set. | Parameter transferred with out-of-range values. | Reset parameters to factory defaults (parameter C02 = 01) and reconfigure. |
| CF | Control Board CPU Fault | CPU microcontroller execution error or board memory failure. | Severe internal electronics failure or extreme electrical disturbance. | Cycle main input power. Internal hardware failure — if fault persists, unit must be replaced. |
Frequently Asked Questions
How do I transfer parameters to a replacement Lenze ESMD371X2SFA inverter?
You can transfer parameters by powering down the drive, removing the blue Electronic Programmable Module (EPM) chip from the front panel of the original inverter, and inserting it into the replacement drive slot. You can also duplicate parameters offline using the optional Lenze handheld EPM programmer.
What causes fault code F08 on the Lenze smd drive display?
Fault code F08 indicates an EPM memory error caused by a missing, loose, corrupted, or incompatible EPM chip. Power off the drive, ensure the blue EPM module is fully seated in its slot, and reapply power.
Does the Lenze ESMD371X2SFA inverter require an external EMC filter?
No, this model features an integrated Class A EMC filter (denoted by the 'F' suffix in the model number), allowing it to comply with industrial noise emission standards without external filtering components.
What action should be taken if the drive displays fault F09 or CF?
Fault codes F09 (Internal Hardware Fault) and CF (Control Board CPU Fault) indicate internal hardware or control board failures that are non-field serviceable. Try cycling main power; if the code persists, the inverter unit must be repaired or replaced.
Can the ESMD371X2SFA run on single-phase 230V AC mains power?
Yes, this inverter accepts a single-phase 230 V AC supply (operating safely between 180 V and 264 V AC at 48 to 62 Hz) and outputs three-phase 0 to 230 V AC power up to 2.4 A for 3-phase induction motors.
Which Lenze series is recommended as a migration successor for the smd drive family?
Lenze recommends transitioning to the Lenze i510 or i550 cabinet frequency inverter series for system modernizations and successor replacement projects.
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