Lenze 33.8606_E System 8600 Frequency Inverter
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Product Information
The Lenze 33.8606E, also identified as model 8600 (Type 8606E), is a 15 kW three-phase AC frequency inverter belonging to the System 8600 product family. Designed for speed and torque regulation of asynchronous AC induction motors in industrial automated machinery, this panel-mount IP20 unit operates from a nominal supply voltage of 400 V AC across an input range of 320 V to 550 V AC. It draws a rated input current of 35 A and delivers a continuous output current of 32 A with an 8 kHz switching frequency. Motor control capabilities include both flexible V/f characteristic control and high-dynamic vector control, operating over an output frequency range of 0 to 480 Hz.
Integrating the inverter into an existing machine design relies on standard control terminals comprising 6 digital inputs, 2 transistor outputs, 2 analog inputs (0 to 10 V or 0 to 20 mA), and 1 analog output, along with an automation slot for plug-in fieldbus interfaces. Commissioning a spare unit or replacing a failed drive requires loading the correct motor parameter set and application parameters. Up to four complete parameter sets can be stored directly inside the drive internal non-volatile EEPROM memory. Parameters can be backed up and restored using either the Type 8251 plug-in operating keypad or Global Drive Control (GDC) software connected via a LECOM interface adapter. When preparing a replacement unit for quick swap-out, engineering support from ABC Industrial Parts can assist with parameter extraction or pre-configuring replacement units prior to installation.
Front-panel status LEDs provide immediate feedback on operational status: the green RUN LED indicates controller enable or ready states, the red TRIP / FAULT LED signals an output disable due to a drive fault, and the yellow IMP / LIMIT LED highlights current limit, torque limit, or impulse inhibit conditions. Real-time parameters such as output voltage, motor current, DC link voltage, and heatsink temperature can be monitored through GDC diagnostic software or the Type 8251 keypad display, while active and historical trips are stored in register C0168. Standard troubleshooting includes checking input power lines for undervoltage trips (LU), inspecting motor wiring for output short circuits (OC1) or ground faults (OC2), and verifying cabinet ventilation for heatsink overtemperature conditions (OH). Where internal memory errors (EE) or electronic board failures (H05) occur, hardware faults cannot be serviced in the field, making a tested replacement drive or specialized repair service from ABC Industrial Parts the most reliable path back to production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 33.8606_E |
| Model / Type | 8600 (Type 8606_E) |
| Product Family | System 8600 |
| Component Type | Frequency Inverter |
| Rated Power | 15 kW |
| Nominal Supply Voltage | 400 V AC |
| Supply Voltage Range | 320 - 550 V AC |
| Rated Input Current | 35 A |
| Continuous Output Current | 32 A |
| Output Frequency Range | 0 - 480 Hz |
| Switching Frequency | 8 kHz |
| Control Method | V/f characteristic control, Vector control |
| Digital Inputs | 6 |
| Digital Outputs | 2 |
| Analog Inputs | 2 |
| Analog Outputs | 1 |
| Protection Rating | IP20 |
Programming and Configuration
Parameterization of the Lenze 33.8606_E inverter is managed through Lenze Global Drive Control (GDC) engineering software or directly via the Type 8251 plug-in operating keypad module. Operating parameters control motor rated data, acceleration and deceleration ramps, programmable I/O terminal assignments, and control modes such as V/f characteristic curve or dynamic sensorless vector control.
The frequency inverter features non-volatile internal EEPROM memory capable of storing up to four independent parameter sets simultaneously. This multi-parameter architecture enables operators to store alternative operational configurations or maintain a complete backup of the primary application parameters on the drive hardware itself, preventing parameter loss during system power interruptions.
During replacement procedures, saved parameters from a donor or faulty unit can be transferred to the replacement drive using GDC software over a LECOM RS232/RS485 adapter or by mounting the Type 8251 keypad to copy saved profiles. Restoring factory default settings allows clean parameter re-initialization prior to writing machine-specific configurations.
Communication and System Integration
The System 8600 drive hardware features an integrated automation slot designed for modular fieldbus interface expansion. This plug-in module system enables simple retrofitting and network integration without modifying the core drive power section.
Compatible communication options include the Lenze 2131 and 2133 PROFIBUS-DP fieldbus modules, the 2171 and 2172 CANopen system bus modules, and LECOM RS232 or RS485 interface adapters. These modules facilitate setpoint transmission, digital and analog process data monitoring, status reporting, and remote parameter management from higher-level PLCs or industrial control systems.
Physical connections are made through dedicated module terminals or serial connectors depending on the module fitted. Configuration involves setting network node addresses and transmission speeds matching the fieldbus master configuration to maintain communication stability and prevent network timeout faults.
Diagnostics and Status Indication
Drive status monitoring is provided by three front-panel diagnostic LEDs. The green RUN LED indicates operational status or active controller enable, flashing when the drive is ready for operation or inhibited. The red TRIP / FAULT LED illuminates continuously when a fault disables the output stage. The yellow IMP / LIMIT LED turns solid when current limits, torque limits, or impulse inhibit thresholds are reached.
Detailed diagnostic information is stored in parameter C0168, which serves as a trip history register logging past fault events. Real-time parameters—including output voltage, motor current, DC link voltage, and heatsink temperature—can be observed using the Type 8251 keypad display or GDC diagnostic monitoring software connected via a LECOM interface adapter.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| RUN | Green - Solid / Flashing | Operational status / Controller Enable active. Flashing indicates ready for operation / inhibit. |
| TRIP / FAULT | Red - Solid | Drive fault trip condition present. Output power stage disabled. |
| IMP / LIMIT | Yellow - Solid | Current limit or torque limit reached / impulse inhibit. |
Replacement and Spare Part Considerations
When selecting a replacement for a Lenze 33.8606_E inverter, verify key electrical ratings: 15 kW output power, 32 A continuous output current, and 400 V AC nominal supply voltage (320 V to 550 V AC range). Any installed option modules—such as PROFIBUS-DP (2131/2133), CANopen (2171/2172), or LECOM serial cards—must be moved from the original unit's automation slot to the replacement drive.
A replacement drive cannot run a machine directly out of the box without parameter configuration. Because motor settings and terminal control logic reside in internal non-volatile memory, the parameter set must be downloaded using GDC software or copied via the Type 8251 keypad. Installing an unconfigured spare unit may cause immediate trip faults or improper motor speed regulation.
Mechanical dimensions and IP20 mounting arrangements match standard System 8600 control cabinet layouts. Prior to applying main line voltage to the spare unit, check motor insulation resistance, verify mains line fuses, inspect terminal block wiring, and ensure option modules are firmly seated in the option slot.
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 | Short circuit on motor output phases or power stage overcurrent. | Motor cable short circuit, motor winding fault, acceleration time set too short. | Check motor and motor wiring for short circuits. Increase acceleration time. |
| OC2 | Earth Fault | Ground fault detected on output phase to earth. | Ground fault in motor lead or motor winding isolation breakdown. | Check insulation resistance of motor wiring and motor windings. |
| OC5 | Ixt Overload | Continuous overload on drive power stage. | Excessive motor load, continuous operation above rated current. | Reduce mechanical load or upgrade drive size. |
| OU | DC Bus Overvoltage | DC link voltage exceeded upper safety threshold. | Excessive regenerative energy during deceleration, deceleration ramp too short, brake resistor open or missing. | Extend deceleration time or install braking module / brake resistor. |
| LU | DC Bus Undervoltage | DC link voltage fell below minimum operation threshold. | Mains supply voltage drop, phase loss, power interruption. | Verify mains input line voltage and line fuses. |
| OH | Heatsink Overtemperature | Inverter heatsink temperature limit exceeded. | Insufficient cooling airflow, dirty heatsink fins, fan failure, ambient temperature too high. | Clean heatsink, ensure adequate cabinet ventilation, inspect cooling fans. |
| OH4 | Motor Overtemperature | Motor thermistor (PTC) or thermal sensor triggered. | Motor thermal overload, low motor speed operation under heavy torque. | Check motor loading and cooling fan operation. |
| CE0 | Communication Error LECOM | Communication breakdown on LECOM interface. | Loose connector, cable interruption, noise interference. | Check serial interface cable connection and shielding. |
| EE | EEPROM Fault | Data checksum error in internal non-volatile parameter memory. | Power failure during write cycle, memory corrupt or hardware failure. | Re-initialize parameters to factory default. Internal hardware fault — if re-initialization fails, return unit for repair. |
| H05 | Hardware Fault | Internal electronic board failure detected during self-test. | Internal board component failure. | Internal hardware fault — return unit for repair or replace the drive. |
| PE | Phase Fault | Mains supply input phase loss detected. | Blown input fuse, loose line connection. | Check input power lines and fuses. |
Frequently Asked Questions
What software is used to configure the Lenze 33.8606_E frequency inverter?
The drive is configured using Lenze Global Drive Control (GDC) software via a LECOM RS232 or RS485 interface module, or manually using the Type 8251 plug-in operating keypad.
How are parameters saved and transferred on this drive?
The drive contains internal EEPROM memory capable of storing up to four complete parameter sets. Parameters can be copied and transferred to a spare unit using the Type 8251 keypad or GDC software.
Which fieldbus modules fit into the automation slot?
Compatible modules include the Lenze 2131 and 2133 PROFIBUS-DP modules, 2171 and 2172 CANopen system bus modules, and LECOM RS232/RS485 interface cards.
What causes an OC1 fault code on the Lenze 33.8606_E?
An OC1 code indicates an output short circuit or power stage overcurrent. Common causes are shorted motor leads, motor winding insulation failures, or an excessively short acceleration ramp.
What action should be taken if an H05 fault code appears?
An H05 fault indicates an internal electronic hardware failure detected during self-tests. This internal board failure cannot be fixed via parameter adjustments and requires component repair or unit replacement.
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