Lenze 345145 8605_E.2E.20 5.5kW Servo Drive Controller
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Product Information
The Lenze 345145 (model 8605_E.2E.20) is a 5.5 kW positioning servo drive controller from the Lenze 8600 Series, designed for dynamic multi-axis positioning, speed control, and torque management in automated industrial machinery. Powered by a 3-phase line supply from 320 V AC to 528 V AC, this drive delivers a continuous output current of 13 A and supports a 19.5 A peak current output for 60-second heavy overload periods during rapid acceleration cycles. Featuring integrated .2E positioning firmware, the unit is constructed to meet the exact dynamic motion demands of indexing tables, gantry systems, packaging lines, and logistics handling equipment.
For field communication and system integration, the 8605_E.2E.20 provides an onboard CANopen system bus on its control terminals, along with a plug-in expansion slot for optional fieldbus interface modules such as the EMF2133IB PROFIBUS-DP adapter or EMF2102IB LECOM modules for RS232, RS485, or fiber-optic connections. Motor feedback is handled through 9-pin D-sub connectors supporting both resolver sensors and RS422 TTL incremental encoders. Commissioning a replacement unit requires restoring parameter sets stored in non-volatile internal EEPROM memory, which can be accomplished via the plug-in EMZ2102IB keypad module or Lenze Global Drive Control (GDC) software. Proper parameter and firmware alignment is critical when putting a replacement unit into service, with ABC Industrial Parts providing tested replacement hardware to help maintain machine readiness.
Drive operation and diagnostic status are indicated by front-panel LEDs and the optional LCD keypad display. A solid green LED indicates standard operating status, a flashing green LED signifies drive enabled or controller inhibit, and a solid red LED indicates an active TRIP or fault state. Technicians can analyze real-time and historical fault codes by reading parameter C0168 or inspecting physical fault contact relay outputs. If parameter memory errors such as EE persist after reloading factory defaults via parameter C0002, internal hardware failure is indicated, making an exchange unit from ABC Industrial Parts the fastest path to restoring production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 345145 |
| Model / Type | 8605_E.2E.20 |
| Component Type | Servo Drive Controller |
| Product Family | 8600 Series |
| Rated Power | 5.5 kW |
| Supply Voltage Range | 320 - 528 V AC (3-Phase) |
| Continuous Output Current | 13 A |
| Peak Output Current | 19.5 A (150% for 60 s) |
| Maximum Output Frequency | 480 Hz |
| Switching Frequency | 8 kHz |
| Digital Inputs | 8 |
| Digital Outputs | 4 |
| Analog Inputs | 2 |
| Analog Outputs | 2 |
| Onboard Fieldbus | CANopen |
Programming and Configuration
The Lenze 8605_E.2E.20 positioning drive relies on Lenze Global Drive Control (GDC) commissioning software or the EMZ2102IB keypad module for initial parameter setup, motion profiling, and system diagnostics. All drive configuration parameters are saved directly into non-volatile internal EEPROM memory, ensuring data retention across total power outages. Keypad cloning allows parameter sets to be uploaded from a operational unit and directly downloaded to a spare device without requiring a PC connection.
Configuring the .2E firmware variant includes defining positioning targets, acceleration ramps, motor control parameters, and assigning local digital I/O functions across the drive's 8 digital inputs and 4 digital outputs. If parameter memory corruption occurs, factory default parameter sets can be reloaded by writing to parameter C0002, after which machine-specific configuration files must be re-applied.
Communication and System Integration
Network communication on the Lenze 345145 servo drive is supported natively by an onboard CANopen system bus located on the control terminals, facilitating fast peer-to-peer data interchange between multiple drives or system controllers. For higher-level industrial automation networks, the controller features a communication slot designed for plug-in fieldbus adapters, including the EMF2133IB PROFIBUS-DP module and the EMF2102IB LECOM module for RS232, RS485, or fiber-optic connections.
Motor feedback interface functionality is centralized around native 9-pin D-sub connectors, including connector X6. The dual feedback channel accepts signals from standard resolvers as well as RS422 TTL incremental encoders and frequency inputs, allowing precision closed-loop control when paired with Lenze 8600 Series servo motors.
Diagnostics and Status Indication
System status monitoring on the 8605_E.2E.20 drive is provided via front status LEDs and the optional EMZ2102IB LCD keypad display. The green LED indicates operational status when solid and controller inhibit or drive enabled when flashing. A solid red LED signals an active TRIP fault state. Detailed diagnostic history and active fault codes can be retrieved directly from parameter C0168 using GDC software or the keypad display, while external signaling is supported by physical fault contact relay outputs.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Operating state / Ready | Green - Solid / Flashing | Solid Green indicates operational status; Flashing Green indicates drive enabled / controller inhibit. |
| Fault / TRIP state | Red - Solid | Solid Red indicates an active drive trip or fault state. |
| Keypad Display | Active | Displays active fault codes and parameter configuration values. |
Replacement and Spare Part Considerations
When selecting a replacement for a faulty unit, verify that both the part number 345145 and model designation 8605_E.2E.20 match the existing hardware. The .2E suffix designates dedicated positioning firmware necessary to execute multi-axis positioning sequences; replacing this unit with a standard speed-control variant without positioning capabilities will prevent system execution.
Before applying power to a replacement unit, all parameter settings from the original drive must be transferred. This can be performed by cloning the parameters via an EMZ2102IB keypad module or transferring saved configuration files via Global Drive Control software. Ensure that any installed option cards, such as PROFIBUS-DP or LECOM modules, and feedback wiring on connector X6 are fully transferred and secured.
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 | Drive output peak current threshold exceeded during motor acceleration phase. | Short circuit in motor wiring or windings, acceleration ramp set too short, motor overload. | Inspect motor cabling for shorts or earth faults, increase acceleration time setting, verify motor sizing. |
| OC2 | Short Circuit / Overcurrent during Deceleration | Output current threshold exceeded during motor deceleration. | Deceleration ramp set too short, high load inertia, motor ground fault. | Increase deceleration time, check braking resistor configuration, check motor cable for insulation breakdown. |
| OC5 | Overcurrent during Constant Speed | Output current exceeded trip limit during steady-state operation. | Sudden mechanical load peak, mechanical binding, insulation fault. | Check mechanical assembly for jam/binding, verify motor parameters and current limits. |
| OU | DC Bus Overvoltage | DC bus voltage exceeded safe maximum limit (~770 V DC). | Excessive regenerative energy during deceleration, missing or defective braking resistor, high mains voltage. | Check braking resistor resistance and connection, verify mains line voltage, extend deceleration ramp. |
| LU | DC Bus Undervoltage | DC bus voltage fell below minimum operating threshold (~400 V DC). | Mains voltage failure, input phase missing, line fuse blown, power supply drop. | Measure line input voltage on L1, L2, L3; check mains fuses and supply contactor. |
| OH | Drive Heatsink Overtemperature | Heatsink temperature exceeded thermal safety limit (>85 °C). | Insufficient cabinet ventilation, cooling fan failure, dirty heatsink fins, high ambient temperature. | Clean heatsink, verify fan operation, check enclosure ventilation and ambient air temperature. |
| OH4 | Motor Overtemperature (PTC) | Motor thermistor/PTC sensor triggered overtemperature threshold. | Motor thermal overload, cooling fan failure on motor, defective PTC cable. | Allow motor to cool, reduce mechanical load, verify motor fan operation and PTC connection. |
| EE | EEPROM Checksum / Parameter Error | Corrupted parameter memory detected inside internal EEPROM. | Power interruption during parameter write, hardware memory corruption. | Reload factory default parameters (C0002) and reconfigure drive. Internal hardware fault if persistent — return unit for repair. |
| r0 | Resolver Feedback Fault | Loss or disruption of signal from motor resolver encoder. | Disconnected or damaged resolver cable, defective resolver sensor, shielding fault. | Inspect resolver wiring and connector X6, check cable shielding and motor ground connection. |
| LP1 | Mains Phase Failure | Missing phase detected on 3-phase input line. | Blown input line fuse, loose power wire on L1/L2/L3. | Check line supply fuses and supply terminals. |
Frequently Asked Questions
How are parameters transferred to a replacement Lenze 345145 drive?
Parameters can be cloned directly using the plug-in EMZ2102IB keypad module or transferred via PC using Lenze Global Drive Control (GDC) software by backing up EEPROM memory settings from the original drive and writing them to the replacement unit.
What does fault code EE mean on the Lenze 8605_E.2E.20?
Fault code EE indicates a checksum or parameter corruption error in the internal EEPROM. To clear it, reload factory default parameters by setting parameter C0002 and reconfigure the unit. Persistent EE errors indicate an internal hardware failure.
Why is the .2E suffix critical when replacing this servo drive?
The .2E suffix identifies the unit as possessing positioning controller firmware. Replacing it with a standard drive lacking this firmware variant will result in incompatible command handling and positioning failure.
Which motor feedback types are compatible with connector X6?
Connector X6 supports 9-pin D-sub feedback connections for resolvers as well as RS422 TTL incremental encoders and frequency inputs.
What causes an OU trip code on the 8605_E.2E.20 controller?
An OU fault code indicates DC bus overvoltage exceeding approximately 770 V DC, typically caused by rapid deceleration, excessive regenerative energy, an unassigned or defective braking resistor, or high supply mains voltage.
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Specific firmware and hardware versions
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Disclaimer:
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