Lenze EVD4906-E 4900 Series DC Drive Converter 84kW 200A
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Product Information
The Lenze EVD4906-E is an 84 kW DC drive converter from the Lenze 4900 series, designed for speed and torque regulation of industrial DC motors. Operating from a 3-phase 400 V AC mains supply, this power unit provides a regulated 460 V DC nominal armature voltage with a rated direct current of 200 A. Built with an IP00 open chassis construction for installation within protected control cabinets, the unit delivers high power density for demanding applications such as extruders, web handling systems, paper converting, and material handling conveyors.
For system control and integration, the EVD4906-E features terminal strip connections for analog setpoint signals, tachometer voltage feedback, and digital control commands including run, stop, and direction. Communication capabilities can be expanded using optional Lenze LECOM option modules, such as the 2102 LI, supporting RS232, RS485, or fiber optic serial links. When installing a replacement drive, parameter configuration must be established prior to operation. System parameters are preserved in non-volatile EEPROM memory, allowing parameter extraction from a donor unit or software backup, and simple restoration using an optional pluggable keypad or Lenze Global Drive Control (GDC) software. ABC Industrial Parts can assist maintenance teams with pre-configured replacement units and parameter transfer solutions to reduce downtime during drive swap-outs.
Real-time operational status is displayed directly on the front panel through four LED indicators: MAINS / POWER ON, READY, TRIP / FAULT, and I-MAX / CURRENT LIMIT. Detailed diagnostics and fault codes are accessible via the pluggable keypad display or read out through LECOM diagnostic registers in GDC software. First-line troubleshooting should include verifying input phase voltages, checking cooling airflow across the heatsink, and inspecting tachometer and armature cable connections. If an overcurrent fault (OC) persists even when the motor cables are disconnected, or if unrecoverable EEPROM parameter errors (PE / EE) occur, internal hardware damage is indicated. In these cases, field maintenance is limited, and exchanging the damaged converter for a fully tested unit or utilizing professional repair through ABC Industrial Parts provides the fastest route back to full production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVD4906-E |
| Model / Type | EVD4906-E |
| Product Family | 4900 |
| Component Type | DC Drive Converter |
| Supply Voltage | 400 V AC |
| Output Voltage | 460 V DC |
| Rated Armature Output Current | 200 A |
| Rated Power Output | 84 kW |
| Ingress Protection Rating | IP00 |
Programming and Configuration
The Lenze EVD4906-E DC drive converter relies on non-volatile EEPROM memory to store all operating parameters, including current limits, acceleration profiles, and control loop gain settings. This solid-state parameter storage ensures configuration retention even during extended power outages. Drive parameterization can be performed directly through an optional pluggable keypad unit or via a computer running Lenze Global Drive Control (GDC) software connected through a LECOM serial interface.
Commissioning a spare unit or replacing a failed converter requires copying the parameter dataset from the existing installation to the new hardware. Using GDC software or the pluggable keypad, technicians can extract the parameter profile from an operational drive or backup file and download it to the replacement unit. Ensuring identical parameter alignment guarantees that motor current limits, tachometer feedback scaling, and field acceleration parameters match the mechanical requirements of the machine.
Communication and System Integration
The EVD4906-E offers comprehensive hardwired I/O options via built-in terminal strip connections. These terminals accommodate analog setpoint inputs, tachometer voltage feedback for precise closed-loop speed regulation, and digital inputs for run, stop, and rotation direction commands. These physical connections allow direct replacement within existing legacy DC control panels.
Network and fieldbus communication can be achieved by installing optional Lenze LECOM modules, such as the 2102 LI option module. Depending on the installed module, the drive supports serial communication over RS232, RS485, or noise-immune fiber optic links. Through LECOM interfaces, host controllers or PC diagnostic tools can read drive status registers, transmit setpoints, and monitor operating conditions remotely.
Diagnostics and Status Indication
The front panel of the Lenze EVD4906-E includes four status LEDs that provide visual feedback for system operators. These indicators monitor mains AC power presence, drive readiness, trip/fault conditions, and current limit status. In addition to visual LED indicators, diagnostic details can be retrieved via fault code readouts on the pluggable keypad or by querying LECOM diagnostic registers through Lenze Global Drive Control software.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| READY | Indicates drive readiness for operation | |
| TRIP / FAULT | Drive trip or fault condition detected | |
| I-MAX / CURRENT LIMIT | Current limit reached or maximum armature current threshold exceeded | |
| MAINS / POWER ON | Mains AC supply voltage connected and active |
Replacement and Spare Part Considerations
When replacing an existing Lenze 4900 series drive converter with the EVD4906-E, maintenance teams must confirm that the power rating (84 kW) and continuous armature current capacity (200 A) match the requirements of the connected DC motor. Because this unit features an IP00 protection rating, it must be mounted inside a ventilated control cabinet that protects internal power components against environmental contaminants.
Before putting a replacement EVD4906-E into service, all operating parameters must be transferred to the new drive to match the specific motor characteristics and control logic of the machine. Swapping a unit without downloading the saved EEPROM configuration or restoring the dataset via Global Drive Control (GDC) software can result in incorrect current limits or improper tachometer scaling, leading to drive trips or unpredictable motor operation.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| OH | Overtemperature Drive / Heatsink | Heatsink temperature exceeds permitted limit. | Inadequate ventilation, fan failure, ambient temperature too high, heavy continuous overload. | Clean heatsink, verify cabinet cooling, check fan operation, reduce load. |
| OC | Overcurrent / Short Circuit | Armature current exceeded peak safety limit. | Short circuit in armature circuit, motor earth fault, damaged power semiconductors, sudden stall. | Check motor insulation, armature cables, check thyristor power section. If fault persists with motor disconnected, internal hardware fault requires unit repair. |
| OU | Overvoltage Mains / DC Link | Supply AC mains or internal DC voltage exceeded upper voltage limit. | Mains supply transient, regeneration without proper braking unit / 4Q operation, overvoltage supply line. | Measure supply mains voltage, check line supply quality and braking circuit. |
| LU | Undervoltage Mains | Mains supply voltage dropped below minimum threshold. | Mains phase loss, severe sag, blown input fuse, main contactor dropped out during run. | Check input fuses, supply line voltages, and main contactor circuit. |
| PE / EE | Parameter Error / Memory Fault | EEPROM parameter checksum failure or internal memory corruption. | Corrupted non-volatile memory, power loss during save operation, internal controller board failure. | Reload default parameters and download saved configuration. If fault cannot be cleared, replace control board/unit. |
| Ce0 / CE | Communication Error | LECOM / Serial communications timeout or framing error. | Interrupted serial connection cable, incorrect baud rate, disconnected option module. | Check serial cable connection, shielding, grounding, and serial port parameter setup. |
Frequently Asked Questions
What software is used to configure and program the Lenze EVD4906-E DC drive?
The Lenze EVD4906-E is configured using Lenze Global Drive Control (GDC) software connected via a LECOM serial module, or directly using an optional pluggable keypad unit.
What are the primary electrical specifications of the EVD4906-E?
The drive operates on a 3-phase 400 V AC mains supply and provides a regulated 460 V DC output voltage, delivering up to 200 A rated armature current with a power output capacity of 84 kW.
How are drive parameters transferred during replacement?
Parameters are saved in internal EEPROM memory. During drive replacement, configuration parameters can be downloaded from a saved file using Lenze Global Drive Control (GDC) software or transferred using the pluggable keypad unit.
What does an OC fault code indicate on the Lenze EVD4906-E?
An OC fault code indicates an overcurrent or short-circuit condition where peak safety limits were exceeded. If this fault persists after disconnecting motor armature cables, an internal power section fault is present that requires unit repair or replacement.
Can the Lenze EVD4906-E integrate into fieldbus networks?
Yes, serial communication capabilities can be added using optional Lenze LECOM modules, such as the 2102 LI option module, supporting RS232, RS485, or fiber optic connections.
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