Lenze 00400051 EVF8244-E 8200 Vector Frequency Inverter 45 kW
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Product Information
The Lenze 00400051 EVF8244-E is a 45 kW frequency inverter from the Lenze 8200 vector drive family, engineered for precise velocity and torque regulation of three-phase AC induction motors. Operating across a supply voltage range of 320 to 550 V AC, this unit delivers up to 89 A of continuous output current, with a high overload rating of 133.5 A for up to 60 seconds to accommodate heavy acceleration duty cycles. Built for control cabinet installation, the drive operates with an 8 kHz switching frequency and output frequencies up to 480 Hz. Motor control options encompass V/f characteristic control, sensorless vector control, and optional closed-loop vector control when configured with encoder feedback.
Field connection and signal handling on the EVF8244-E are managed through plug-in terminal blocks providing six digital inputs, two digital outputs, two analog inputs, and two analog outputs. Network connectivity is established via an interchangeable module slot supporting PROFIBUS-DP, CANopen, System Bus CAN, Interbus, or LECOM RS-232/RS-485 interfaces. Commissioning a spare drive requires transferring parameter profiles stored in the internal EEPROM, which holds up to four switchable parameter sets. Parameter adjustments and profile migration are performed using the XT Keypad (E82ZBC), the Operating Module (EMZ8201BB), or Lenze Global Drive Control software. Technical assistance from ABC Industrial Parts can assist maintenance teams with parameter extraction and profile configuration.
Diagnostic reporting on the EVF8244-E is accessible via front-mounted status LEDs, handheld keypads, and software interfaces. Two LED indicators report operational status and active trip conditions. Numerical trip codes such as OC1 (short circuit), OU (DC bus overvoltage), LU (DC bus undervoltage), and EE (EEPROM error) pinpoint specific operational faults. Basic troubleshooting includes checking three-phase mains supply line balance, motor insulation, output wiring, and fieldbus module seating. When internal electronic failures or precharge hardware faults occur, component-level field servicing is unfeasible, making drive reconditioning or exchange through ABC Industrial Parts the most practical path to restore system operation.
Technical Specifications
| Rated Power | 45 kW |
| Supply Voltage Range | 320 - 550 V AC |
| Rated Output Current | 89 A |
| Maximum Output Current (60s) | 133.5 A |
| Output Frequency Range | 0 - 480 Hz |
| Switching Frequency | 8 kHz |
| Control Method | V/f characteristic control, sensorless vector control, closed-loop vector control |
| Digital Inputs | 6 |
| Digital Outputs | 2 |
| Analog Inputs | 2 |
| Analog Outputs | 2 |
Programming and Configuration
Parameter setting and software management for the Lenze 00400051 EVF8244-E frequency inverter are conducted using Lenze Global Drive Control (GDC) software or modular hardware interfaces including the XT Keypad (E82ZBC) and Operating Module (EMZ8201BB). The drive integrates non-volatile EEPROM memory engineered to store four independent parameter sets. This multi-profile feature allows machines to switch operational routines internally without requiring manual re-parameterization.
When installing a replacement drive, parameter files from the original unit must be reloaded onto the spare inverter. Parameter transfer can be accomplished by saving data into the XT Keypad memory and copying it directly into the new unit, or by uploading and downloading project files via GDC software. Matching drive software parameters ensures that acceleration ramps, current limits, V/f curves, and I/O assignments match system requirements.
Communication and System Integration
The EVF8244-E provides both hardwired interface terminals and network fieldbus capabilities. Direct wiring terminals accommodate six digital inputs, two digital outputs, two analog inputs, and two analog outputs for local control switches, speed reference signals, and status feedback to standard control panels.
To connect into centralized PLC automation networks, the inverter features a dedicated function module slot. Depending on application requirements, plug-in communication options include PROFIBUS-DP (E82ZAFPC), CANopen (E82ZAFAC), System Bus CAN (E82ZAFCC), Interbus, or LECOM RS-232/RS-485 modules. Swapping communication cards between drives allows simple physical integration without modifying fieldbus cabling.
Diagnostics and Status Indication
Operational diagnostics for the Lenze EVF8244-E inverter rely on two status LEDs located on the unit interface, combined with alpha-numeric error codes shown on attached keypad displays or inside Lenze Global Drive Control (GDC) software. The green LED indicates drive readiness and operational activity, while the red LED signals trip conditions and operational faults.
Detailed internal metrics, such as DC bus voltage levels, actual output frequency, heatsink temperature, and motor thermal load integrals (I²t), can be monitored live using GDC software or keypad diagnostic menus to assist in predictive troubleshooting and fault identification.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Red (Fault/Error) | Red - Solid / Flashing | Indicates active inverter fault or trip condition |
| Green (Ready/Operation) | Green - Solid / Flashing | Indicates unit ready or active drive operation status |
Replacement and Spare Part Considerations
When replacing a unit in an existing installation, match both the part number 00400051 and model code EVF8244-E. Verify that the AC mains supply aligns with the 320 to 550 V AC specification and that the control cabinet layout supports the drive dimensions and thermal cooling requirements.
To commission a replacement drive, remove the communication function module (e.g., PROFIBUS-DP or CANopen) from the damaged unit and transfer it into the spare inverter slot. Load the backup parameter profile into the drive using the XT Keypad or Lenze Global Drive Control software to configure motor parameters, fieldbus addresses, and I/O options prior to enabling drive output power.
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 or earth fault on motor output terminals. | Short circuit in motor cable, short circuit in motor windings, motor cable capacitance too high, or defective internal output power stage. | Check motor wiring and isolation, check motor windings, verify cable length. If fault persists with motor disconnected, internal power stage failure requires unit repair/replacement. |
| OC2 | Overcurrent during Acceleration | Motor current exceeded threshold during acceleration ramp. | Acceleration ramp time set too short, motor mechanical overload, incorrect motor parameter settings, or improper V/f curve adjustment. | Increase acceleration time, check mechanical load for binding, verify motor parameters. |
| OC3 | Overcurrent during Deceleration | Motor current exceeded threshold during deceleration ramp. | Deceleration ramp time set too short, high load inertia without brake chopper/resistor. | Increase deceleration time, install or check brake module and brake resistor. |
| OC4 | Overcurrent at Constant Speed | Motor current exceeded threshold during steady-state operation. | Sudden load impulse, motor stall, mechanical jam. | Check driven mechanics for obstructions or severe dynamic load increases. |
| OC5 | Overcurrent during Load Change | Motor current surge during rapid load fluctuations. | Sudden load variation exceeding dynamic inverter response. | Check mechanical application, optimize drive control parameters. |
| OU | DC Bus Overvoltage | Voltage in the DC intermediate circuit exceeded maximum allowed limit. | Excessive regenerative energy during deceleration, deceleration time too short, brake resistor fault, or high mains input voltage. | Extend deceleration time, check braking chopper and resistor, verify AC supply voltage. |
| LU | DC Bus Undervoltage | Voltage in the DC intermediate circuit dropped below minimum operating limit. | Mains supply failure, voltage dip, blown line fuse, loose main power terminal connection. | Check AC mains supply voltage, fuses, and power wiring. |
| OH | Heatsink Overtemperature | Inverter heatsink temperature exceeded safe limit. | Inadequate cabinet ventilation, clogged heatsink cooling fins, internal cooling fan failure, ambient temperature too high. | Clean heatsink, check enclosure cooling fans and airflow, reduce continuous load if operating above rating. |
| OH4 | Motor Overtemperature (PTC) | Motor thermal sensor / PTC thermistor triggered overtemperature fault. | Motor thermal overload, low motor cooling speed at low frequency, broken thermistor cable. | Allow motor to cool down, inspect forced cooling fan on motor, check PTC sensor connection. |
| OH7 | Interior Overtemperature | Inverter internal ambient temperature too high. | Cabinet ambient temperature too high, internal fan failure. | Improve control cabinet ventilation and ambient cooling. |
| OH8 | Motor Overload (I²t) | Calculated motor load integral (I²t) exceeded thermal protection limit. | Motor running at continuous overload current. | Check mechanical load, verify motor nominal current parameter setting. |
| OL | Inverter Overload (I²t) | Inverter continuous overload threshold exceeded. | Drive operated above continuous rated current for extended duration. | Reduce mechanical load or upgrade to higher power inverter model. |
| EE | EEPROM Memory Error | Fault detected during parameter read or write to internal EEPROM memory. | Power failure during parameter save, non-volatile memory corruption, or hardware board fault. | Reload factory default parameters and restore parameter backup. If fault persists, internal memory failure requires board repair or replacement. |
| CE0 | Communication Error | Interruption in communication between inverter control board and function/keypad module. | Loose module contact, bad connection, or electromagnetic interference. | Reseat communication/keypad module, check shielding and grounding. |
| CE1 | Fieldbus Communication Fault 1 | Timeout or framing error on fieldbus network connection. | Bus cable disconnected, master PLC stopped, incorrect node address or baud rate. | Check fieldbus cabling, bus termination resistors, and fieldbus master status. |
| P12 | Precharge Fault | DC bus pre-charging circuit did not complete successfully. | Mains supply too low, internal precharge resistor damaged, or defective precharge relay/contactor. | Verify line input voltage. If supply voltage is normal, internal pre-charge circuit fault requires return for repair. |
| EEr | External Fault | Trip command triggered via digital input assigned to external fault function. | External safety circuit, motor protection device, or line fault monitor tripped. | Check connected external fault sensors/contacts and reset external cause. |
| H05 | Internal Hardware Error | Internal self-test failed during power-up or runtime. | Internal electronic component or control board failure. | Internal hardware fault — return unit to manufacturer or authorized service center for repair. |
| LP1 | Mains Phase Failure | Failure or severe imbalance detected in input AC power phases. | Phase loss, blown supply fuse, loose line terminal. | Check 3-phase mains voltage at input terminals L1, L2, L3 and line fuses. |
| NMAX | Speed Limit Exceeded | Motor speed/frequency exceeded absolute maximum threshold. | Incorrect speed controller tuning, external driving load driving motor. | Check load mechanics, check feedback encoder and speed controller gains. |
Frequently Asked Questions
Which software tool is used to program the Lenze 00400051 EVF8244-E drive?
The EVF8244-E frequency inverter is programmed and parameterized using Lenze Global Drive Control (GDC) software. Configuration and diagnostic adjustments can also be made using hardware accessories such as the XT Keypad (E82ZBC) or Operating Module (EMZ8201BB).
How many parameter configurations can be stored on the EVF8244-E drive?
The onboard EEPROM memory holds up to four independent, switchable parameter sets. This feature allows different machine profiles to be stored directly on the drive and selected as needed.
What optional fieldbus modules can be installed on this drive?
The unit features a modular slot that accepts option cards including PROFIBUS-DP (E82ZAFPC), CANopen (E82ZAFAC), System Bus CAN (E82ZAFCC), Interbus, and LECOM RS-232/RS-485 interfaces.
What does fault code OC1 indicate on the display?
Fault code OC1 signals a short circuit or earth fault on the motor output terminals. Troubleshooting involves inspecting motor cabling insulation, motor windings, and checking for internal power stage failures.
What steps are required to substitute a faulty drive with a spare EVF8244-E?
Installation requires verifying the power rating (45 kW) and supply voltage (320–550 V AC), physically mounting the unit, transferring the plug-in communication module, and reloading the parameter backup using the XT Keypad or GDC software.
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