Lenze 00386354 EVF8105-A Frequency Inverter
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Product Information
The Lenze 00386354 EVF8105-A is a 3.0 kW panel-mount AC frequency inverter from the Lenze 8100 Series, engineered for precise variable speed control of standard asynchronous three-phase motors. Powered by a three-phase supply ranging from 320 V AC to 550 V AC (400/480 V AC nominal), this drive delivers a continuous output current of 7.3 A across an output frequency spectrum of 0 to 480 Hz. Operating with customizable V/f characteristic control and an adjustable switching frequency up to 8 kHz, the drive regulates motor speed efficiently in processing machinery, conveyor lines, industrial fans, and pumps.
Connecting the EVF8105-A to machinery control systems is handled via an onboard control terminal strip featuring four programmable digital inputs, one open-collector digital output, and dual analog channels supporting 0 to 10 V DC or 0/4 to 20 mA signals. The unit includes a dedicated automation interface slot that accommodates optional plug-in modules, such as the 8101BC or 8102BC operating keypads and LECOM-A (2102IB) RS232, LECOM-B RS485, or fiber-optic communication interfaces. Commissioning a replacement unit requires transferring application parameters, which can be configured via Global Drive Control (GDC) software or loaded directly from an existing unit using non-volatile EEPROM memory. Technical guidance from ABC Industrial Parts can assist during parameter profile extraction and configuration transfer to prepare a replacement drive for service.
Diagnostic monitoring on the front panel utilizes dual LED indicators to report real-time operating conditions. A green Ready LED remains solid during normal operation and blinks during soft start or inhibitor states, while a red Fault LED illuminates or flashes during trip conditions. Detailed diagnostic codes can be retrieved via keypad parameters C003 and C0161, or via parameter C0003 trip history over LECOM. When confronting trips such as short circuit OC1, DC bus overvoltage OU, or thermal overload, initial field checks should confirm motor wiring integrity, supply voltage stability, cooling fan function, and acceleration ramps. Internal power stage faults or persistent board errors cannot be serviced in the field, where securing a tested exchange unit or repair through ABC Industrial Parts provides a fast resolution to restore system operation.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 00386354 |
| Model / Type | EVF8105-A |
| Product Family | 8100 Series |
| Component Type | Frequency Inverter |
| Rated Power | 3.0 kW |
| Supply Voltage | 3x 400 / 480 V AC |
| Supply Voltage Range | 320 - 550 V AC |
| Output Voltage | 3x 0 - Uin V AC |
| Rated Output Current | 7.3 A |
| Output Frequency Range | 0 - 480 Hz |
| Switching Frequency | 8 kHz |
| Control Method | V/f Characteristic Control |
| Digital Inputs | 4 |
| Digital Outputs | 1 (Open-Collector) |
| Analog Inputs | 1 (0-10V DC or 0/4-20mA) |
| Analog Outputs | 1 (0-10V DC) |
| Mounting Type | Panel Mount |
Programming and Configuration
Parameterization of the Lenze EVF8105-A is performed using either an attached 8101BC or 8102BC operating keypad module or through Lenze Global Drive Control (GDC) software over a serial communication link. Internal parameters define key operating variables, including V/f boost curves, current thresholds, acceleration ramp times via parameter C0012, deceleration ramp times via parameter C0013, and digital input functionality.
The inverter incorporates non-volatile EEPROM memory to hold parameter sets securely without battery backup. When preparing a replacement inverter for operation, settings can be cloned from the original unit using GDC commissioning software or copied via the removable keypad module. If parameter corruption occurs (indicated by code Pr), factory default settings can be reloaded by setting parameter C0002 to 1 prior to entering system parameters.
Communication and System Integration
System networking and communication with higher-level control systems are facilitated by the front-facing automation slot on the EVF8105-A drive. This interface slot accepts modular option cards, including the LECOM-A (2102IB) RS232 module, the LECOM-B RS485 module, or fiber-optic interface modules for serial protocol integration.
Hardwired field connections connect to the integrated control terminal strip, providing four digital inputs, one digital open-collector output, one analog input for frequency setpoints (0-10 V DC or 0/4-20 mA), and one analog output (0-10 V DC). Through LECOM communication modules, supervisory systems can monitor operational metrics, execute remote parameter changes, and interrogate trip history records.
Diagnostics and Status Indication
The EVF8105-A provides visual status indication via two LEDs on the front panel to assist maintenance staff during routine operation and troubleshooting. These indicators signal power ready states, inhibitor status, and general fault trips without requiring connected software.
For precise fault diagnostics, active error codes can be displayed on the 8101BC or 8102BC keypad module under parameters C003 and C0161. Historical fault records are stored in parameter C0003, which can be interrogated via LECOM serial interface links.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Ready (Green) | Green - Solid / Blinking | Solid green indicates drive ready / running. Blinking indicates inhibitor active or soft start. |
| Fault / Error (Red) | Red - Solid / Flashing | Flashing or lit indicates internal hardware fault or external Trip fault condition. |
Replacement and Spare Part Considerations
When selecting a replacement drive for the Lenze 00386354 (EVF8105-A), confirm that the power rating (3.0 kW), continuous current capacity (7.3 A), and 3-phase supply voltage match the existing panel installation. The EVF8105-A shares standard panel-mounting dimensions within the Lenze 8100 Series, allowing direct mechanical installation into existing cabinet footprints.
A replacement unit cannot operate correctly without transferring the application-specific parameter set. Prior to enabling power stage output, transfer the LECOM interface card or 8101BC/8102BC operating keypad from the old unit, load the backed-up parameter file using Global Drive Control software, and verify digital and analog I/O terminal functions.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| OC1 | Short Circuit / Earth Fault | Short circuit at motor terminals or ground fault in motor cable. | Short circuit in motor cable, motor winding insulation failure, ground fault. | Check motor wiring and insulation resistence; check motor for interturn short circuit; if fault persists with motor disconnected, internal power stage is damaged (return for repair). |
| OC2 | Earth Fault during Acceleration | Ground fault or overcurrent trip during motor acceleration phase. | Acceleration time set too short, motor wire ground fault, motor undersized. | Increase acceleration time (C0012); verify insulation resistance of motor and cabling. |
| OC3 | Overcurrent during Constant Speed | Overcurrent trip while motor running at steady operating frequency. | Sudden mechanical load surge, motor stalling, current limit set too low. | Check mechanical drive system for blockage; adjust V/f boost setting or current limit. |
| OC5 | Overcurrent during Deceleration | Overcurrent trip during motor deceleration phase. | Deceleration time set too short, generatoric energy surge. | Increase deceleration time (C0013); connect dynamic braking resistor if required. |
| OU | Overvoltage DC Bus | DC bus voltage exceeds maximum threshold (approx. 770 V DC). | Excessive regenerative energy during deceleration, deceleration ramp too fast, supply mains voltage spike. | Increase deceleration time (C0013); install braking module / braking resistor; check mains supply voltage. |
| LU | Undervoltage DC Bus | DC bus voltage dropped below minimum operating limit. | Mains supply voltage drop, phase failure, power outage, weak mains transformer. | Check mains voltage supply lines and fuses; inspect power supply connections. |
| OH | Heatsink Overtemperature | Inverter heatsink temperature exceeds maximum allowable threshold. | Ambient temperature too high, cooling fan blocked or failed, insufficient clearance around drive, excessive continuous load. | Clean heatsink cooling fins, check operation of cooling fan, improve cabinet ventilation, reduce carrier frequency. |
| OH4 | Motor Overtemperature (PTC) | Motor thermistor/PTC sensor triggered high motor temperature trip. | Motor thermal overload, low motor cooling airflow at reduced speed, sensor line broken. | Allow motor to cool; inspect motor cooling fan and airflow; verify PTC wiring; reduce load. |
| OH7 | Inverter I x t Overload | Thermal overload threshold of inverter power section reached. | Continuous operation above rated inverter output current. | Reduce mechanical load, increase inverter size if necessary. |
| OH8 | Motor I2t Overload | Calculated motor thermal overload limit reached. | Motor operated at high load at low speeds without forced ventilation. | Check motor sizing; adjust I2t monitoring parameters (C0075); install external motor cooling fan. |
| CE0 | Communication Error LECOM | Data transmission failure on LECOM interface. | Faulty communication cable, loose interface module, baud rate mismatch, host timeout. | Check LECOM cable seating and wiring; verify interface module connection and baud rate settings. |
| EEr | EEPROM Memory Error | Internal parameter memory read/write failure or checksum fault. | Power failure during parameter store process, memory chip corrupt. | Re-load factory default settings (C0002 = 1); re-enter configuration parameters; if persistent, internal board error requires unit repair/replacement. |
| H05 | Internal Hardware Error | Inverter internal hardware defect detected during self-test. | Internal control board fault, internal power supply failure. | Internal hardware fault — return unit for repair or replace inverter. |
| LP1 | Input Phase Failure | One of the AC power input supply phases is missing. | Blown supply fuse, loose power supply phase wire, asymmetric supply network. | Check incoming 3-phase supply voltage on terminals L1, L2, L3 and check upstream protective fuses. |
| Pr | Parameter Error | Incompatible or out-of-range parameter combination detected. | Invalid parameter modification, corrupted parameter set transferred. | Perform factory reset (C0002) and re-commission parameters. |
Frequently Asked Questions
What software is used to program the Lenze EVF8105-A frequency inverter?
The EVF8105-A is programmed and commissioned using Lenze Global Drive Control (GDC) software via a LECOM communication module, or directly via an optional 8101BC or 8102BC keypad module.
How do I transfer parameters to a replacement 00386354 drive?
Parameters can be transferred by saving the parameter profile using Global Drive Control (GDC) software over a LECOM RS232/RS485 link, or by using a plug-in 8101BC/8102BC keypad module to copy settings stored in the drive's non-volatile EEPROM.
What does a blinking red fault LED indicate on the EVF8105-A?
A solid or flashing red Fault LED indicates an active trip condition, such as an overcurrent, overvoltage, or thermal trip, or an internal hardware failure. Specific trip codes can be read using parameters C003 or C0161 on a keypad module.
How can I resolve an EEr fault code on the EVF8105-A?
An EEr fault indicates an EEPROM memory read/write error. Re-load factory default settings by setting parameter C0002 to 1, then re-enter configuration parameters. If the code persists, an internal memory chip or control board defect requires repair or replacement.
What communication interfaces are supported by the EVF8105-A automation slot?
The automation slot supports LECOM-A (2102IB) RS232 modules, LECOM-B RS485 modules, fiber-optic communication cards, and 8101BC/8102BC operating keypad modules.
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