Lenze 00451557 EVD4905-E Servo Positioning Controller
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Product Information
The Lenze 00451557 EVD4905-E is a digital servo positioning controller and drive unit from the EV&D 4900 family, engineered for closed-loop position and speed control of AC brushless servo motors up to 5.5 kW. Operating on a 3-phase AC input range of 320 V to 528 V AC with a nominal rating of 400 V AC, the drive delivers a continuous output current of 12 A and dynamic peak output capability of 24 A for 5 seconds to handle demanding acceleration cycles. Featuring an 8 kHz switching frequency and a maximum output frequency of 480 Hz, this controller provides dynamic torque performance suitable for automated indexing, point-to-point positioning, and multi-axis synchronised drive systems.
For system interface and feedback, the unit is equipped with an integrated 500 kbit/s CAN system bus for master-slave drive coordination, a female 9-pin Sub-D resolver interface (X7), and a modular expansion slot supporting optional communication adapters like the PROFIBUS-DP EMF2133IB card or LECOM-A RS232 EMF2102IBV001 module. Putting a spare unit into service requires parameter alignment, as the controller relies on internal EEPROM memory to store up to two operating datasets. Parameter transfer can be completed directly using the Operating Module Keypad XT (EMF2102IBC) or uploaded via Lenze Global Drive Control (GDC) software versions 4.x or 5.x. Technical support teams at ABC Industrial Parts can assist with pre-tested replacement units and parameter preparation to minimize downtime during installation.
Drive operational status is indicated visually on the front housing by a green power LED for operational readiness and a red TRIP LED for fault conditions. Real-time diagnostics, error logs, and parameter monitoring are accessible through the Keypad XT display, GDC software online monitoring, or CAN system bus diagnostic status outputs. Internal protection monitors detect conditions such as overcurrent (OC1, OC2, OC3), DC bus overvoltage or undervoltage (OU, LU), heatsink and cabinet overheating (OH, OH4, OH5), resolver signal errors (Sd3), positioning errors (PR), or CANbus communication failure (H05). Persistent memory faults like EE or hardware power stage failure indicate internal defects that cannot be serviced in the field, making drive repair or unit replacement through ABC Industrial Parts the most efficient path back to full production.
Technical Specifications
| Supply Voltage | 400 V AC |
| Supply Voltage Range | 320 - 528 V AC |
| Continuous Rated Current | 12 A |
| Peak Output Current | 24 A |
| Rated Power Output | 5.5 kW |
| Switching Frequency | 8 kHz |
| Maximum Output Frequency | 480 Hz |
| System Bus Communication Rate | 500 kbit/s |
| Position Feedback Interface | Resolver (Sub-D 9-pin female) |
Programming and Configuration
The Lenze EVD4905-E servo positioning controller utilizes internal non-volatile EEPROM memory to store up to two complete parameter sets. Drive configuration, positioning profiles, axis scaling, and motor speed control parameters are managed using Lenze Global Drive Control (GDC) software version 4.x or 5.x. Connection to a PC for software commissioning is established through a LECOM serial adapter or supported fieldbus module.
For rapid field replacement without a laptop on the factory floor, parameter duplication can be performed directly using the Lenze Keypad XT (EMF2102IBC). The Keypad XT attaches directly to the front interface slot of the drive, enabling maintenance technicians to upload parameter sets from an operational unit and transfer them into a replacement drive. This parameter transfer preserves motor alignment data, application limits, and control loop configurations.
Communication and System Integration
Network integration for the EVD4905-E is centered on its onboard CAN system bus interface operating at 500 kbit/s. Supporting CANopen-compatible communication, the system bus handles multi-axis motion synchronization, real-time control commands, and cross-axis data exchange between master controllers and slave drives without requiring auxiliary motion control cards.
For integration into fieldbus networks, the drive features a modular expansion slot. Installing optional interface modules such as the PROFIBUS-DP communication module (EMF2133IB) or the LECOM-A RS232 adapter (EMF2102IBV001) allows seamless integration with centralized PLC control architecture. Motor position feedback is routed through the standard female 9-pin Sub-D connector on interface X7 for resolver-equipped AC servo motors.
Diagnostics and Status Indication
Visual status monitoring on the Lenze EVD4905-E controller is provided by two front-panel LED indicators. A solid green LED indicates active line power and operational readiness. A solid or flashing red LED alerts operators to an active TRIP status or unacknowledged fault condition that has halted drive execution.
Detailed diagnostics are accessible via the Keypad XT (EMF2102IBC) error menu, which logs trip events and displays active fault codes. Additionally, drive parameters, fault history, and dynamic operating variables can be monitored online through Global Drive Control (GDC) engineering software or over the CAN system bus interface.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Green LED | Green - Solid | Ready for operation / Power ON |
| Red LED | Red - Solid/Flashing | TRIP active / Fault condition present |
Replacement and Spare Part Considerations
When replacing a Lenze EVD4905-E servo controller (part number 00451557), verify that the replacement drive matches the required electrical specifications: 5.5 kW power rating, 12 A continuous output current, and 320–528 V AC operating voltage range. Replacement units cannot operate out-of-the-box without transferring the internal parameter set configured for the target machine.
Parameter sets must be copied from the original drive to the replacement unit using either a Keypad XT (EMF2102IBC) or Global Drive Control (GDC) software V4.x/V5.x. Before restarting production, verify that CAN system bus node addresses match network documentation, confirm that 120 Ohm termination resistors are installed at both ends of the CAN bus line, and check that resolver cabling on connector X7 has intact shielding.
In situations where an old drive displays an unrecoverable EEPROM memory failure (fault EE) or immediate short-circuit trips (fault OC1) with the motor disconnected, internal hardware damage has occurred. Board-level repair or swapping in a fully tested spare unit allows fast restoration of system operation without re-engineering the application controls.
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 / Earth Fault | Short circuit at motor terminals or earth fault in motor wiring. | Short circuit in motor cable, motor winding fault, ground fault. | Check motor wiring and insulation test motor. If fault occurs immediately with motor disconnected, power stage hardware fault requires service. |
| OC2 | Earth Fault During Operation | Ground fault current detected during drive execution. | Damaged motor insulation or water in motor junction box. | Inspect cable shielding and motor ground connections. |
| OC3 | Overcurrent Acceleration | Motor current limit exceeded during dynamic acceleration. | Acceleration time too short, mechanical block or overload. | Increase acceleration ramp time, reduce motor load, verify motor parameters. |
| OU | DC Bus Overvoltage | DC bus voltage exceeded upper limit (>770 V DC). | Braking energy too high, deceleration ramp too short, brake chopper/resistor missing or defective. | Increase deceleration ramp, connect or check external brake resistor. |
| LU | DC Bus Undervoltage | DC bus voltage dropped below minimum limit (<400 V DC). | Mains supply failure, supply phase missing, main contactor open. | Check mains voltage supply and input fuses. |
| OH | Drive Overheating | Heatsink temperature exceeded allowable threshold. | Inadequate cabinet cooling, dirty heatsink, internal fan failure. | Clean heatsink, check fan operation and ambient temperature. |
| OH4 | Cabinet Overheating | Drive interior / ambient temperature high limit exceeded. | Ambient temperature in control cabinet too high. | Improve enclosure ventilation or air conditioning. |
| OH5 | Motor Overheating | Motor thermal contact / PTC sensor triggered overload. | Continuous motor overload, blocked cooling air on motor. | Allow motor to cool, reduce mechanical load, verify thermal sensor cable connection. |
| Sd3 | Resolver Feedback Error | Signal loss or broken cable on resolver interface X7. | Resolver cable disconnected, damaged cable shield, defective resolver. | Inspect resolver wiring and connector X7, check shielding and grounding. |
| EE | EEPROM Fault | Internal EEPROM read/write memory fault. | Corrupted non-volatile memory or hardware defect. | Reload factory default settings. If fault persists, internal hardware defect - return unit for repair or replace unit. |
| H05 | System Bus (CAN) Communication Fault | CANbus message timeout or bus-off state. | Incorrect baud rate, missing bus termination resistor (120 Ohm), damaged CAN cable. | Check CANbus cable, termination resistors, and node address settings. |
| PR | Program / Positioning Error | Target position out of range or positioning profile fault. | Software limit switch reached, invalid target position received. | Verify position profile settings and target values in GDC software. |
Frequently Asked Questions
How do I transfer parameters to a replacement Lenze EVD4905-E controller?
Parameters can be transferred using the Keypad XT module (EMF2102IBC) by copying parameter sets directly from drive memory without a PC. Alternatively, configuration files can be uploaded and restored via Global Drive Control (GDC) software versions 4.x or 5.x over a serial or fieldbus connection.
What engineering software is required to configure the EVD4905-E drive?
The EVD4905-E is configured using Lenze Global Drive Control (GDC) software versions 4.x or 5.x. The software provides tools for parameter management, positioning profile setup, dynamic tuning, and fault log analysis.
What motor feedback interface is built into the EVD4905-E?
The controller features a dedicated 9-pin female Sub-D connector on interface X7 designed to interface with standard AC brushless servo motors equipped with resolver position feedback.
What causes fault code OC1 on the Lenze EVD4905-E?
Fault code OC1 indicates a short circuit or ground fault in the motor cabling or windings. If fault OC1 occurs immediately upon powering up with the motor cable disconnected from the drive, an internal power stage hardware fault is present.
How is the built-in CAN system bus interface configured?
The integrated CAN system bus operates at 500 kbit/s for multi-axis synchronization. Correct network performance requires setting matching node addresses, verifying cable wiring, and fitting 120 Ohm termination resistors at both physical ends of the CAN bus line.
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