Lenze 338115 8301 A.1G.23 – 8300 Series 0.37kW Frequency Inverter
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Product Information
The Lenze 338115, model designation 8301 A.1G.23, is a compact frequency inverter within the Lenze 8300 series designed for precise speed control of standard three-phase AC induction motors. Delivering a rated power output of 0.37 kW with a continuous current rating of 2.4 A and a maximum peak current of 3.6 A (providing 150% overload capacity for up to 60 seconds), this IP20-rated drive operates across an input supply range from 180 V AC to 264 V AC. It supports single-phase 1x 230 V AC or three-phase 3x 230 V AC supply connections, generating a 3-phase output voltage from 0 to 230 V AC across a frequency range of 0 to 480 Hz utilizing V/f characteristic control with an 8 kHz switching frequency.
Field connection to the drive is made via screw terminals for main supply and control lines, supplemented by four programmable digital inputs, one multi-range analog input, one analog output, and a configurable TRIP relay contact output. An integrated LECOM interface slot accepts plug-in communication modules such as the LECOM-A 2102IB / 8251 RS232 module or LECOM-B 2102IB / 8252 RS485 module for system integration. Putting a replacement drive into service requires parameter transfer, as operational configuration is retained in non-volatile internal EEPROM memory. Parameters can be copied from an existing drive or loaded using an optional Lenze 8201BB operating keypad or Global Drive Control (GDC) PC software, with assistance available from ABC Industrial Parts for parameter transfer and replacement preparation.
Status indication and diagnostic monitoring are handled directly via front-panel LEDs, including a red TRIP LED indicating active fault conditions and a green Ready LED that remains solid during normal operation and flashes during controller inhibition or initialization. Specific error codes such as OH (heatsink overtemperature), OC1/OC2/OC5 (overcurrent or short circuit), OU/LU (DC bus voltage faults), and EE (EEPROM failure) can be read via the 8201BB keypad display or through GDC software parameter queries C003 and C0161. First-line troubleshooting should verify supply voltage stability, output motor insulation, cooling path clearance, and control wiring. When internal EEPROM corruption or hardware failure occurs, component-level defects cannot be serviced in the field, making an exchange unit or repair service through ABC Industrial Parts the recommended solution.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 338115 |
| Model Designation | 8301 A.1G.23 |
| Product Series | 8300 Series |
| Component Type | Frequency Inverter |
| Rated Power | 0.37 kW |
| Rated Output Current | 2.4 A |
| Maximum Output Current | 3.6 A (150% for 60 s) |
| Supply Voltage Range | 1x 230 V AC / 3x 230 V AC (180 - 264 V AC) |
| Output Voltage | 3x 0 - 230 V AC |
| Output Frequency Range | 0 - 480 Hz |
| Switching Frequency | 8 kHz |
| Control Method | V/f Characteristic Control |
| Digital Inputs | 4 |
| Analog Inputs | 1 |
| Analog Outputs | 1 |
| Enclosure Rating | IP20 |
Programming and Configuration
Parameter settings on the Lenze 338115 frequency inverter are retained inside non-volatile EEPROM memory, securing configuration datasets such as motor acceleration/deceleration ramps, speed limits, and input terminal functions against main power loss. Direct parameter adjustments and local control can be performed using the optional Lenze 8201BB operating module keypad plugged into the front of the unit.
For PC-based setup and commissioning, the drive connects to the Lenze Global Drive Control (GDC) software suite via an installed LECOM communication module. GDC allows real-time diagnostics, parameter backup, offline file editing, and parameter transfer. Cloned datasets can be saved to a computer drive and reloaded directly into replacement units to maintain consistent operational behavior.
Communication and System Integration
The Lenze 8301 A.1G.23 includes a hardware communication slot designed for LECOM expansion modules. Compatible options include the LECOM-A 2102IB / 8251 module for RS232 point-to-point connections, the LECOM-B 2102IB / 8252 module for RS485 multi-drop network integration, and fiber optic interface modules.
In addition to optional serial networking modules, hardwired control features four digital inputs, one multi-range analog input, and one analog output. A configurable TRIP relay output contact is included to signal drive status directly to external control circuits, safety chains, or supervisory PLCs.
Diagnostics and Status Indication
Visual status indication is provided by two LEDs located on the front panel. The green Ready LED remains illuminated during normal power-on operation and blinks when the drive controller is inhibited or completing initialization. The red TRIP LED illuminates solid or blinks whenever an active fault condition causes a drive shutdown.
Detailed fault diagnostics are accessible via the LED screen of the optional 8201BB keypad or within the diagnostic monitoring tools of Global Drive Control (GDC) software. Parameter codes C003 and C0161 allow users to query active fault conditions and inspect saved fault history logs.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| TRIP / Fault Indicator | Red - Solid or Flashing | Fault or trip condition is active on the drive |
| Ready / Operation Indicator | Green - Solid or Flashing | Solid during normal operation and power-on; flashing when controller is inhibited or initializing |
Replacement and Spare Part Considerations
When replacing an existing drive with a Lenze 338115 (8301 A.1G.23), confirm that the supply configuration matches the site requirements (single-phase or three-phase 230 V AC across 180 V AC to 264 V AC) and that the motor rating does not exceed 0.37 kW / 2.4 A continuous output current.
Commissioning a replacement drive requires reloading the original parameter set into internal EEPROM memory. This can be accomplished by copying settings using an 8201BB operating keypad or by writing a stored project file via Global Drive Control (GDC) PC software over a LECOM connection.
Ensure that any plug-in expansion modules, such as the LECOM-A 2102IB / 8251 RS232 or LECOM-B 2102IB / 8252 RS485 module, are securely transferred from the old inverter to the replacement unit prior to applying power.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| OH | Overtemperature Heatsink | Heatsink temperature exceeds maximum allowable threshold (>90 °C). | Inadequate cooling, fan failure, ambient temperature too high, heavy overload. | Check ambient cooling, clear heatsink dust/blockages, verify fan operation, reduce load. |
| OH4 | Motor Overtemperature | Motor thermal sensor / PTC thermistor triggered or motor thermal model limit exceeded. | Motor overloaded, thermal sensor open circuit or tripped due to overheating. | Allow motor to cool down, inspect motor ventilation, check PTC sensor wiring. |
| OC1 | Overcurrent Acceleration | Output current exceeded peak limit during motor acceleration. | Acceleration time too short, motor mechanically blocked, short circuit in output cable. | Increase acceleration ramp time, inspect motor and wiring for short circuits, check motor sizing. |
| OC2 | Overcurrent Deceleration | Output current exceeded peak limit during motor deceleration. | Deceleration ramp time too short, high inertia load. | Increase deceleration time, install braking resistor if enabled. |
| OC5 | Overcurrent Constant Operation / Short Circuit | Short circuit or extreme sudden overload during steady-state operation. | Short circuit in motor winding or motor cable, earth fault, abrupt mechanical jam. | Disconnect motor cables and test motor insulation/phase resistance; check for output earth fault. |
| OU | Overvoltage DC Bus | DC bus voltage exceeded upper limit (> 400 V DC). | Generative energy returned from motor during deceleration; deceleration ramp too steep. | Increase deceleration ramp time; check mains voltage level; connect or verify external brake chopper / resistor. |
| LU | Undervoltage DC Bus | DC bus voltage dropped below minimum threshold (< 215 V DC). | Mains supply failure, supply voltage drop, phase failure, mains fuse blown. | Verify mains supply input voltage, check line fuses and supply wiring. |
| EE | EEPROM Fault | Internal EEPROM checksum or memory read/write failure. | Internal memory corrupt or hardware damage. | Internal hardware fault — reset power and attempt parameter reload. If persistent, return unit for repair or replace unit. |
| LP1 | Motor Phase Failure | Output motor phase loss detected. | Broken motor cable, loose terminal connection, motor winding open circuit. | Inspect motor cables, connections, and motor winding resistance across all phases. |
| CE0 | Communication Error LECOM | Communication interruption between inverter and LECOM module/host system. | Loose module, damaged cable, incorrect baud rate or timeout parameter setting. | Check serial connection cable, parameter settings, and module seating. |
| Pr | Parameter Data Error | Parameter data invalid or corrupted during load/transfer. | Incomplete parameter transfer or incompatible firmware dataset. | Re-download valid parameter dataset or perform factory reset and re-commission. |
Frequently Asked Questions
What electrical power supply does the Lenze 338115 frequency inverter require?
The Lenze 338115 (8301 A.1G.23) operates on either single-phase 1x 230 V AC or three-phase 3x 230 V AC input power, within an allowable voltage range of 180 V AC to 264 V AC.
How are parameter settings backed up and transferred to a replacement drive?
Parameters are saved in internal EEPROM memory. They can be backed up and reloaded into a spare unit using the optional 8201BB operating keypad or via Lenze Global Drive Control (GDC) PC software connected through a LECOM module.
Which communication modules can be installed in the LECOM interface slot?
The integrated slot supports LECOM interface modules, including the LECOM-A 2102IB / 8251 RS232 module, the LECOM-B 2102IB / 8252 RS485 module, and compatible fiber optic interface adapters.
What do the status LEDs on the front panel indicate?
The green Ready LED stays solid during normal power-on operation and flashes when the drive is inhibited or initializing. The red TRIP LED illuminates solid or flashes when an active trip or fault condition is present.
What does an EE fault code indicate on this drive?
An EE code signifies an internal EEPROM memory checksum or read/write error. If cycling input power and attempting a parameter reload does not clear the fault, an internal hardware failure is present requiring repair or replacement.
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