Lenze 00355570 33.8106-E 8100 Series 4.0kW Frequency Inverter
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Product Information
The Lenze 00355570 model 33.8106-E is a 4.0 kW AC frequency inverter from the Lenze 8100 series, engineered for speed regulation of standard 3-phase AC induction motors. Operating on a nominal 400 V AC line supply with an acceptable voltage range of 342 V AC to 528 V AC, this unit delivers up to 9.5 A of continuous output current and an adjustable output frequency from 0 Hz to 480 Hz. Control methods include linear and quadratic V/f characteristic curves as well as sensorless vector control (VFC) for high dynamic performance and low-speed torque stability. Designed for panel mounting, the drive incorporates non-volatile EEPROM memory capable of storing two complete parameter profiles directly on the device.
Interfacing the Lenze 33.8106-E with supervisory controllers is achieved via a front-facing modular expansion slot. The slot accommodates plug-in communication adapters including LECOM-A (2102IB), LECOM-B, PROFIBUS-DP (2131IB / 2133IB), and CANopen (2172IB) modules. Commissioning a replacement unit requires configuring parameter settings to match the driven motor and application load, as a spare drive will not run correctly out of the box without active parameter transfer. Parameters can be backed up, modified, and restored using Lenze Global Drive Control (GDC) software or an Operating Module Keypad 2102IB / 33.8100. Support from ABC Industrial Parts can assist maintenance teams with parameter extraction from existing units or preparing pre-configured replacement drives.
Front panel visual diagnostics feature three dedicated status LEDs: READY (solid green indicating operational readiness), TRIP (solid red indicating an active fault condition), and IMP (flashing yellow indicating active pulse inhibit). Detailed diagnostic tracking is available via 7-segment fault display on the plug-in keypad or through the LECOM diagnostic status register readout. Common trip conditions such as OC1 (acceleration overcurrent), OU (DC bus overvoltage), LU (DC bus undervoltage), or OH (heatsink overtemperature) can be resolved by checking incoming line voltages, motor cabling, fieldbus module seating, and cooling air flow. When persistent hardware faults like EER memory corruption or H05 internal errors occur, internal board-level components are generally non-serviceable in the field, making a tested replacement or exchange drive through ABC Industrial Parts the standard route back to production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 00355570 |
| Model / Type | 33.8106-E |
| Product Family | 8100 Series |
| Component Type | Frequency Inverter |
| Rated Power | 4 kW |
| Supply Voltage | 400 V AC |
| Supply Voltage Range | 342 V AC – 528 V AC |
| Continuous Output Current | 9.5 A |
| Output Voltage | 400 V AC |
| Output Frequency Range | 0 Hz – 480 Hz |
| Switching Frequency | 8 kHz |
| Control Method | V/f characteristic control and sensorless vector control (VFC) |
Programming and Configuration
The Lenze 33.8106-E frequency inverter offers flexible programming capabilities through Lenze Global Drive Control (GDC) engineering software or via the plug-in Operating Module Keypad 2102IB / 33.8100. Parameterization options allow precise setting of motor thermal curves, acceleration and deceleration ramps, switching frequencies up to 8 kHz, and control mode selection between linear V/f, quadratic V/f, or sensorless vector control (VFC).
To safeguard application settings, the inverter incorporates an internal non-volatile EEPROM storage architecture capable of retaining up to two complete parameter sets. This capability simplifies routine backup, allowing maintenance personnel to restore customized parameter configurations or revert to default factory settings following component servicing.
Communication and System Integration
System integration into automated machinery is facilitated through a dedicated front expansion interface slot on the Lenze 33.8106-E. The slot supports point-to-point serial communication using LECOM-A (2102IB) and LECOM-B RS232/RS485 adapters for direct PC connection and local PLC control.
For integration into broader industrial fieldbus networks, optional communication modules including PROFIBUS-DP (2131IB / 2133IB) and CANopen (2172IB) can be installed. These interface cards enable high-speed data transmission of command signals, operating parameters, and real-time status registers to central control PLCs.
Diagnostics and Status Indication
Visual status indication on the front panel of the drive provides immediate verification of operating states. Three primary status LEDs indicate ready status, trip errors, and pulse inhibit activation.
For comprehensive fault analysis, error codes are output to the 7-segment display of the optional keypad module or read remotely via the LECOM interface diagnostic registers, enabling systematic fault identification.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| READY | Green - Solid | Operational state indicator. Green continuous light indicates inverter is ready for operation. |
| TRIP | Red - Solid | Fault state indicator. Red light indicates active TRIP fault message. |
| IMP | Yellow - Flashing | Pulse inhibit active indicator. Pulses to power stage are inhibited. |
Replacement and Spare Part Considerations
When selecting a spare or replacement unit for a Lenze 00355570 (33.8106-E) drive, verify that electrical power specifications match the existing installation. The inverter requires a 400 V AC 3-phase supply line and delivers 9.5 A of continuous output current for 4.0 kW induction motor ratings.
Before installing a spare unit, existing parameters must be backed up from the original drive using Lenze GDC software or saved to a plug-in Operating Module Keypad 2102IB / 33.8100. Installing an unconfigured replacement will result in motor control faults or improper operation.
For long-term control cabinet upgrades or modernization projects where 8100 series drives are being replaced, recommended modern successor models include the Lenze 8200 Vector series or the Lenze i550 series frequency inverters.
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 / Overcurrent During Acceleration | Output current exceeds threshold level during acceleration ramp. | Short circuit on motor cables, ground fault, acceleration time set too short, or motor size mismatched. | Check motor wiring for short circuit or earth fault, increase acceleration time, check motor size. |
| OC2 | Overcurrent During Deceleration | Output current exceeds threshold level during deceleration ramp. | Deceleration time set too short, dynamic braking module missing or undersized. | Increase deceleration time, install or check braking resistor. |
| OC5 | Overcurrent at Constant Speed | Output current exceeds threshold level during steady-state operation. | Sudden load surge, mechanical blockage, or severe motor overload. | Inspect mechanical system for jams, reduce load, check motor current rating. |
| OU | DC Bus Overvoltage | DC bus voltage exceeded safe limit. | Excessive regenerative energy during deceleration, mains supply voltage too high, braking chopper defective. | Increase deceleration time, check braking resistor, measure line voltage. |
| LU | DC Bus Undervoltage | DC bus voltage dropped below minimum threshold level. | Mains supply failure, transient voltage drop, blown input fuse, or phase loss. | Check line supply voltage, fuses, and incoming power lines. |
| OH | Heatsink Overtemperature | Heatsink temperature exceeds permitted limit. | Cooling fan failed, heatsink dirty, ambient temperature around enclosure too high, insufficient cabinet ventilation. | Clean heatsink fins, verify operation of cooling fan, improve control cabinet ventilation. |
| OH4 | Motor Overtemperature | Motor temperature switch or thermistor triggered. | Motor thermal overload, cooling fan failure on motor, thermistor wiring issue. | Allow motor to cool down, inspect motor load and thermal sensor connection. |
| LP1 | Mains Phase Failure | Missing input phase detected on incoming 3-phase line supply. | Line fuse blown, severe phase unbalance, single-phase supply connected. | Check line input supply wiring and fuses across all three phases. |
| EER | EEPROM Memory Fault | Checksum fault or error in internal non-volatile EEPROM memory. | Data corruption during write operation, internal board hardware fault. | Reload factory default settings and reprogram parameter set. If fault persists, internal hardware error present — return unit for repair. |
| CE0 | Communication Error LECOM / Fieldbus | Communication breakdown between inverter and master/keypad. | Loose module connector, broken communication cable, bus master timeout, baud rate mismatch. | Check communication interface cable, fieldbus connections, and interface module seating. |
| H05 | Internal Hardware Error | Internal control board or power section failure detected during self-test. | Internal component failure, corrupted internal microprocessor state. | Internal hardware fault — power cycle unit. If fault recurs, replace unit or contact service for board repair. |
| NMAX | Maximum Speed Exceeded | Actual motor speed exceeded configured maximum limit. | Incorrect speed controller tuning, overspeed due to overhauling load. | Adjust speed controller parameters and maximum frequency limits. |
Frequently Asked Questions
What software is used to program the Lenze 00355570 frequency inverter?
The drive is configured using Lenze Global Drive Control (GDC) software via a LECOM adapter, or directly through an Operating Module Keypad 2102IB / 33.8100.
How do I transfer parameters from a failed 33.8106-E drive to a replacement unit?
Parameters can be extracted using Lenze GDC software or copied into the non-volatile memory of a Keypad 2102IB / 33.8100, then uploaded directly to the replacement unit.
Which fieldbus communication modules fit the Lenze 33.8106-E expansion slot?
The drive supports Lenze LECOM-A (2102IB), LECOM-B, PROFIBUS-DP (2131IB / 2133IB), and CANopen (2172IB) communication modules.
What does a solid red TRIP LED indicate on the front panel?
A solid red TRIP light indicates an active fault condition. The specific error code can be read using a plug-in keypad display or via the LECOM status register.
How should an EER fault code be addressed on this drive?
An EER error indicates an EEPROM checksum fault. Reload the factory default settings and reprogram the drive parameters. If the error persists, an internal board fault is present.
What modern Lenze models are recommended to replace the 8100 series 33.8106-E?
Recommended modern migration models include frequency inverters from the Lenze 8200 Vector series and Lenze i550 series.
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