Lenze 00451554 EVD4904-E Digital Servo Drive
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Product Information
The Lenze 00451554 (model EVD4904-E) is a 3.0 kW digital servo drive from the Lenze 4900 series, designed for dynamic positioning, torque, and speed control of synchronous and asynchronous AC servo motors. Operating from a 3-phase AC mains supply of 320 V AC to 528 V AC (400/480 V AC nominal), this compact drive delivers a continuous output current of 7.0 A and a peak current of 14.0 A for up to 5 seconds to handle demanding acceleration phases. The unit incorporates a built-in braking transistor for regenerative energy dissipation and requires a 24 V DC external supply for its control electronics.
Interfacing with the machine system relies on a SUB-D 9-pin connector at terminal X7 for resolver motor feedback, dual differential analog inputs (0 to ±10 V), programmable digital I/O, and an integrated Lenze System Bus (CAN) interface. Fieldbus integration can be tailored using optional plug-in modules, such as PROFIBUS-DP or INTERBUS options, or connected through a LECOM serial adapter. Commissioning a replacement unit requires transferring stored configuration data; the drive houses an internal EEPROM capable of retaining up to four distinct parameter sets. These parameter sets can be written and backed up using Lenze Global Drive Control (GDC) software or managed directly using an EMF2102IB keypad module. Parameter extraction from a faulty board or donor unit prior to swapping hardware helps ensure configured acceleration ramps, current limits, and motor feedback offsets are accurately replicated.
Status verification on the drive front panel is provided by dedicated LEDs: a green DRIVE READY light indicates output stage readiness, a red TRIP light signals active fault tripping, and a yellow IMP/Inhibit light shows active controller inhibit. Detailed diagnostic data, active fault conditions, and recent historical trips can be accessed via code C0003 using the EMF2102IB keypad or through the GDC diagnostic window. Initial troubleshooting steps should verify 3-phase mains line voltages, 24 V DC control power, CAN bus termination resistors, and resolver cable integrity at X7. If the drive displays persistent internal memory errors such as EER or control supply rail faults like H05, the internal power or memory circuitry cannot be serviced in the field, making unit repair or replacement through ABC Industrial Parts the most practical solution to minimize operational downtime.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 00451554 |
| Model / Type | EVD4904-E |
| Product Family | Digital Servo Drives 4900 |
| Component Type | Servo Drive |
| Rated Power | 3.0 kW |
| Supply Voltage Range | 320 - 528 V AC |
| Nominal Supply Voltage | 400 / 480 V AC (3-phase) |
| Rated Output Current | 7.0 A |
| Peak Output Current | 14.0 A (5 s) |
| Output Voltage | 0 - 400 V AC |
| Control Supply Voltage | 24 V DC |
| Integrated Brake Chopper | Yes |
| Integrated Fieldbus | System Bus (CAN) |
| CAN Bus Speed | Up to 500 kbit/s |
| Feedback Interface | Resolver (SUB-D 9-pin X7) |
| Parameter Storage | EEPROM (up to 4 parameter sets) |
Programming and Configuration
The Lenze EVD4904-E digital servo drive utilizes Lenze Global Drive Control (GDC) software as its primary engineering tool for parameterization, commissioning, and system analysis. Through GDC, technicians can set speed and torque control parameters, configure analog and digital I/O routing, and tune dynamic control loops for connected synchronous or asynchronous AC servo motors.
For localized or tool-free commissioning, the drive supports the plug-in EMF2102IB Keypad Operating Module. The drive's internal non-volatile EEPROM stores up to four complete parameter sets, allowing multi-recipe operation or fast configuration switching. When swapping drives, existing parameter sets can be uploaded from the operational drive or backup file and flashed into the replacement unit to preserve exact dynamic performance settings.
Communication and System Integration
For coordinated multi-axis motion control, the EVD4904-E features an integrated Lenze System Bus (CAN) interface supporting transfer rates up to 500 kbit/s. This allows peer-to-peer communication between multiple drives and master controllers for synchronized axis movements in packaging and material handling machinery.
System integration flexibility is expanded through optional fieldbus option modules installed directly into the drive's communication slot. Supported interfaces include PROFIBUS-DP via the EMF2131IB or EMF2133IB modules, INTERBUS via the EMF2111IB or EMF2113IB modules, and serial communications via the EMF2102IB LECOM RS-232/RS-485 interface adapter.
Diagnostics and Status Indication
Comprehensive operational feedback is supplied via front-panel LEDs and digital software monitoring tools. Three status LEDs give immediate visual indication of drive state: green for operational readiness, red for fault trips, and yellow/amber for active controller pulse inhibition.
Detailed error analysis is performed through the C0003 code display on the plug-in EMF2102IB keypad or using the diagnostic monitoring window in Lenze GDC software. The drive maintains an internal fault history log storing recent trip codes, aiding in systematic fault tracking across power supply, thermal, overcurrent, and feedback conditions.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| DRIVE READY | Green - Solid | Inverter operational and ready for operation; output stage enabled or ready to enable. |
| TRIP | Red - Solid or Flashing | Fault condition / TRIP present. Output stage inhibited. Requires fault reset. |
| IMP / Inhibit | Yellow / Amber - Solid | Pulse inhibit active (controller inhibit active / outputs disabled). |
Replacement and Spare Part Considerations
Replacing a Lenze EVD4904-E unit requires ensuring exact specification alignment regarding part number 00451554 and model variant EVD4904-E. Because servo drive parameterization dictates motor thermal limits, resolver alignment, and fieldbus node addresses, a replacement unit cannot be operated directly out of the box without transferring the original parameter set.
Prior to powering up a replacement drive, parameter sets should be transferred using Lenze Global Drive Control software or an EMF2102IB keypad. Technicians must verify that option modules—such as PROFIBUS-DP EMF2131IB/EMF2133IB or INTERBUS EMF2111IB/EMF2113IB—are correctly seated in the communication slot, DIP switches or node addresses match network documentation, and the resolver feedback cable is securely attached to terminal X7.
When hardware failures occur on the control board or internal power circuitry (such as fault codes EER or H05), field-level component repairs are not advisable. Sourcing a fully tested replacement drive or scheduling repair services through ABC Industrial Parts ensures swift restoration of machine functionality.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| OH | Heatsink Overtemperature | Drive heatsink temperature exceeded maximum safety threshold (>85°C). | Inadequate cooling, fan failure, ambient temperature too high, continuous overload. | Check cabinet ventilation and cooling fans; clear heatsink fins; reduce load. |
| OH4 | Motor Overtemperature | Motor temperature sensor (PTC/TK) detected excessive motor heating. | Motor overload, mechanical binding, incorrect thermal sensor wiring. | Allow motor to cool down; check mechanical load; verify motor PTC wiring on control terminal. |
| OC1 | Short Circuit / Earth Fault | Short circuit or earth fault detected on output motor terminals (U, V, W). | Short circuit in motor cable, motor winding isolation fault, earth fault. | Check motor power wiring, disconnect motor and test drive without motor, check motor winding resistance. |
| OC2 | Overcurrent during Acceleration | Motor output current exceeded peak rating during acceleration ramp. | Acceleration ramp time too short, motor mechanical block, incorrect motor control parameters. | Increase acceleration time; check motor sizing and mechanical drive train; verify current limit parameter. |
| OC5 | Overcurrent during Operation | Dynamic current limit exceeded during continuous run or acceleration peak. | Sudden load impulse, mechanical jamming, motor instability. | Check load mechanics; optimize speed/current controller gain parameters. |
| OU | DC Bus Overvoltage | DC bus voltage exceeded upper trip threshold (>770 V DC). | Excessive regenerative energy during braking, missing or undersized braking resistor, deceleration ramp too short. | Increase deceleration ramp time; connect external braking resistor; check braking chopper functionality. |
| LU | DC Bus Undervoltage | DC bus voltage dropped below minimum threshold (<420 V DC). | Mains supply phase failure, low supply voltage, line fuse blown. | Check 3-phase mains voltage input; inspect line fuses and mains contactors. |
| Pr | Parameter Set Error | Checksum fault in parameter set stored in EEPROM. | Power loss during parameter save, corrupted EEPROM data. | Reload factory default settings; restore parameter backup via GDC software. |
| EER | EEPROM Memory Hardware Error | Internal EEPROM memory read/write hardware failure. | Internal EEPROM chip defect or board failure. | Internal hardware fault — return unit for repair or replace drive unit. |
| CE0 | Communication Error / System Bus | System Bus (CAN) communication timeout or loss of bus master signal. | Broken bus cable, incorrect bus termination resistors, wrong baud rate or node ID configuration. | Check CAN bus cable, wiring connections, termination resistors, and system bus parameter settings. |
| H05 | Internal Supply Hardware Fault | Internal power supply rail voltage error on control board. | Internal control board power supply fault. | Internal board failure — power cycle drive; if persistent, replace drive unit. |
| Sd | Resolver / Feedback Error | Loss or corruption of resolver feedback signal. | Resolver cable damaged, loose connector on X7, defective resolver. | Check resolver cable shielding, connector seating at X7, and motor resolver winding integrity. |
| NMAX | Overspeed Fault | Motor actual speed exceeded max overspeed limit. | Speed controller unstable, encoder/resolver slippage, external load driving motor. | Verify speed feedback configuration and tuning parameters; check load application. |
Frequently Asked Questions
What software is required to configure the Lenze 00451554 EVD4904-E drive?
Configuration and parameter transfer are performed using Lenze Global Drive Control (GDC) software. Alternatively, basic parameter adjustments and set loading can be executed locally using the EMF2102IB keypad operating module.
Can a replacement EVD4904-E drive be installed without parameter backup?
No, the drive requires a specific parameter set matching the motor type, feedback calibration, speed/torque limits, and network settings. Parameter sets must be uploaded from a backup file or extracted from the original unit's EEPROM via GDC software or the EMF2102IB keypad before running the machine.
What optional communication modules are compatible with this drive?
The EVD4904-E features a slot for optional communication modules, including PROFIBUS-DP (EMF2131IB / EMF2133IB), INTERBUS (EMF2111IB / EMF2113IB), and LECOM RS-232/RS-485 serial adapters (EMF2102IB).
What do the front status LEDs indicate on the drive?
A solid green DRIVE READY LED indicates normal operation with the output stage enabled or ready. A solid or flashing red TRIP LED signifies an active fault with the output stage inhibited. A solid yellow/amber IMP/Inhibit LED indicates active pulse inhibit.
What actions should be taken if the drive displays fault code EER or H05?
Fault codes EER (EEPROM memory hardware failure) and H05 (internal supply rail failure) indicate internal hardware faults on the drive's control board. These conditions cannot be resolved via parameter resets in the field and require repairing or replacing the drive unit.
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