Lenze E82EV251-2C 8200 Vector Frequency Inverter 0.25 kW
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Product Information
The Lenze E82EV251-2C is a compact frequency inverter from the 8200 Vector series, engineered for precise variable speed regulation of three-phase AC motors in industrial machinery. Designed to operate on a 230 V AC single-phase or three-phase input supply with an acceptable voltage range of 180 to 264 V AC, this drive delivers a rated power output of 0.25 kW with a continuous output current of 1.7 A and a 3.4 A rated input current. It supports multiple motor control methods, including linear V/f characteristics, frequency control (VFC), and advanced sensorless vector control to maintain dynamic speed stability and low-end torque across an output frequency range of 0 to 480 Hz. Featuring a 150% maximum overload capability for 60 seconds (up to 2.55 A peak overload current) and selectable switching frequencies between 2 kHz and 16 kHz with an 8 kHz default, it provides quiet and reliable operation for conveyor drives, packaging material feeds, ventilation fans, and small pumps.
The drive utilizes a modular hardware design that separates the base power unit from plug-in operating keypads and network communication modules. Integrating a replacement unit into a production line requires matching physical option slots and transferring unit configuration. Commissioning and parameterization are performed using Lenze Global Drive Control (GDC) software version 4.0 or higher, or through optional pluggable keypads such as the EMZ8201BB standard panel or the EMZ8211BB XT keypad module. The inverter houses internal EEPROM memory supporting up to four independently selectable parameter sets, allowing multiple machine operating profiles to be saved locally. When replacing a failed unit, stored parameter sets must be uploaded from the original unit or downloaded from a software backup to ensure identical control settings. ABC Industrial Parts supports engineering teams with replacement hardware and parameter extraction strategies to streamline installation.
Real-time drive status is indicated by front-panel LEDs and diagnostic parameter readouts. A solid green LED confirms normal operating status with the inverter enabled, slow green flashing at 1 Hz indicates an inverter inhibit state, and fast green flashing at 2 Hz signifies quick stop or zero setpoint selection. A solid red LED signals an active TRIP fault, slow red flashing indicates a warning, and fast red flashing points to an active fault with automatic restart pending; if both LEDs are unlit, line power is disconnected or an internal power supply issue exists. Active faults and fault history are logged under parameter C0168, while operating parameters such as output frequency, DC bus voltage, and motor current are monitored in parameters C005x. First-line troubleshooting should verify input mains voltage, check motor insulation, and inspect fieldbus connections. When internal gate driver circuits or micro-controller memory failures occur, ABC Industrial Parts offers tested exchange units and professional repair services to reduce equipment downtime.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | E82EV251-2C |
| Model / Series | 8200 Vector |
| Component Type | Frequency Inverter |
| Rated Power | 0.25 kW |
| Supply Voltage | 230 V AC |
| Supply Voltage Range | 180 - 264 V AC |
| Rated Input Current | 3.4 A |
| Continuous Output Current | 1.7 A |
| Maximum Overload Current | 2.55 A (150% for 60 s) |
| Output Voltage Range | 0 - 230 V AC |
| Output Frequency Range | 0 - 480 Hz |
| Switching Frequency | 8 kHz (Selectable 2 - 16 kHz) |
| Control Methods | V/f, VFC, Sensorless Vector Control |
Programming and Configuration
Parameterization and commissioning of the Lenze E82EV251-2C frequency inverter are conducted using Lenze Global Drive Control (GDC) software version 4.0 or higher, or via direct keypad interaction. The drive includes non-volatile EEPROM memory engineered to store up to four complete, independently selectable parameter sets, enabling rapid transition between different production recipes without reconfiguring individual motor parameters.
Operator control and cloning are managed using optional plug-in interfaces. The EMZ8201BB Standard Operating Keypad provides basic display and parameter editing, while the EMZ8211BB XT Keypad Module features onboard memory for uploading, storing, and downloading drive configurations directly between units without a PC. In cases of corrupted parameters or EEPROM checksum errors (faults PR0 or C003), a factory reset can be executed using parameter C002 before reloading saved parameter sets.
Communication and System Integration
The modular construction of the 8200 Vector series allows the E82EV251-2C to adapt to various fieldbus systems and I/O requirements via plug-in function modules. Standard terminal interface functions for analog and digital control signals are provided by installing the E82ZAFSC010 Standard I/O Function Module into the drive's option slot.
For integrated network operation, the drive supports network modules including the E82ZAFCC010 CANopen Communication Module and the E82ZAFPC001 PROFIBUS-DP Communication Module, as well as System Bus (CAN) and LECOM serial interfaces (RS232/RS485). Communication timeouts, invalid parameter telegrams, or bus interruptions trigger dedicated diagnostic fault codes CE0 through CE4, requiring verification of cable shielding, 120-ohm bus termination resistors, node IDs, and master controller communication states.
Diagnostics and Status Indication
The E82EV251-2C provides comprehensive visual and software diagnostics to identify operating conditions and system faults. The front-panel green and red LEDs reflect drive status, quick stop conditions, TRIP errors, and pending restarts. Advanced diagnostics can be conducted via the EMZ8201BB or EMZ8211BB keypads or through the GDC software diagnostic suite.
Active drive parameters can be interrogated in real time under parameter group C005x, which monitors key variables including output frequency, DC bus voltage, motor current, and internal status flags. Active TRIP faults and historical error logs are stored in parameter C0168 for fast fault analysis.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Green LED (Operation) | Green - Solid / Flashing | Lit continuously: Inverter enabled, operating normally. Flashing slowly (1 Hz): Inverter inhibited (CINH / IMP). Flashing rapidly (2 Hz): Quick stop active or setpoint 0 selected. |
| Red LED (Fault / Warning) | Red - Solid / Flashing | Lit continuously: TRIP fault active. Flashing slowly (1 Hz): Warning active. Flashing rapidly (2 Hz): Fault active with automatic restart pending. |
| Both LEDs Off | None - Off | Mains supply voltage missing, DC bus unpowered, or internal power supply hardware failure present. |
Replacement and Spare Part Considerations
When swapping a damaged or failed Lenze E82EV251-2C inverter, plant engineers must confirm that the replacement matches the exact part number to guarantee identical voltage ratings (230 V AC), power output (0.25 kW), and continuous output current capability (1.7 A). Because the drive stores operating parameters locally, installing a replacement unit requires restoring the parameter configuration from an EMZ8211BB XT keypad module or downloading a saved project via Global Drive Control (GDC) software.
For facilities planning comprehensive machine modernizations, Lenze recommends the i550 Cabinet Inverter series as a modern migration path. However, replacing an existing drive with a direct-fit E82EV251-2C unit avoids cabinet wiring modifications, panel layout redesigns, and controller reprogramming, allowing rapid restoration of operational machinery.
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 on motor phase output or overcurrent during acceleration | Short circuit in motor cable or motor winding, acceleration time too short, motor improperly dimensioned | Check motor and output wiring for short circuits, increase acceleration time, check motor parameters |
| OC2 | Earth Fault | Earth/ground fault on output terminals | Earth fault in motor cable or motor winding, capacitive leakage currents in excessive motor cable length | Check motor cable and motor for insulation breakdown to ground, reduce motor cable length or fit output filter |
| OC5 | Ixt Overload | Inverter overload / thermal utilization fault | Continuous current demand exceeding rated inverter current for longer than allowable limit | Check drive sizing, reduce mechanical load, increase acceleration/deceleration times |
| OU | Overvoltage | DC bus overvoltage threshold exceeded (> 400 V DC for 230 V unit) | Excessive regenerative energy during deceleration, deceleration ramp time too short, mains voltage too high | Increase deceleration time, install brake resistor / brake unit, check mains supply voltage |
| LU | Undervoltage | DC bus undervoltage limit reached (< 215 V DC for 230 V unit) | Mains supply voltage too low, mains phase failure, power interruption | Check input mains voltage and fuses, verify mains connection and line supply stability |
| OH | Heatsink Overtemperature | Heatsink temperature threshold exceeded (> 90 °C) | Inadequate cooling, fan failure, ambient temperature too high, dirty heatsink | Clean heatsink, ensure adequate cabinet ventilation, check cabinet fan operation |
| OH4 | Motor Overtemperature | Motor thermal contact or PTC sensor tripped | Motor thermal overload, insufficient motor cooling, PTC trip triggered at terminals T1/T2 | Allow motor to cool down, check motor load and forced ventilation, verify PTC wiring |
| OH7 | Heatsink Temperature Warning Level | Heatsink temperature near maximum threshold | High ambient temperature, high continuous load | Improve cooling airflow in control cabinet |
| OH8 | Motor I2t Overload | Motor calculated thermal load limit reached | Continuous operation at low speed with high motor current | Check motor current limits, enable forced cooling for motor or resize motor/drive |
| OCF | Fast Current Cut-off | Instantaneous peak current limit exceeded | Severe mechanical shock load, short circuit, fast setpoint changes with loose motor connection | Check mechanical load for jam or binding, inspect motor connections and wiring |
| P13 | Power Unit Fault | Fault detected in internal power section / gate driver circuit | Internal hardware failure on inverter power driver board or IGBT module | Internal hardware fault — power down unit, if fault persists upon restart, return unit for repair or replace inverter |
| PER | Program Memory Error | Internal microprocessor memory error / program execution failure | Internal micro-controller hardware failure or damaged internal firmware EEPROM | Internal hardware fault — perform power cycle, if fault reoccurs, replace the inverter |
| H05 | Heatsink Sensor Fault | Internal heatsink temperature sensor circuit failure | Defective internal temperature sensor hardware or broken internal connection | Internal hardware failure — return unit for service or replacement |
| EEr | External Fault | External trip condition triggered via digital input signal | External monitoring device (e.g. external safety circuit or switch) opened | Check external circuit connected to the digital input programmed for external TRIP |
| NMAX | Max Speed Exceeded | Actual motor speed exceeded maximum speed setting threshold | Overhauling load, improper encoder feedback, improper motor parameter settings | Check motor control parameters, encoder connection, and braking resistor operation |
| NSOLL | Setpoint Speed Fault | Setpoint signal wire break or missing reference signal | Analog input wire break (< 2 mA / 2 V threshold), lost setpoint source | Check analog setpoint signal wiring and voltage/current levels |
| CE0 | Communication Fault 0 | Communication failure on fieldbus interface module slot | Interrupted fieldbus cable, loose module, fieldbus master stopped | Check fieldbus wiring, module connection, and fieldbus master status |
| CE1 | Communication Fault 1 | Process data transfer timeout on fieldbus interface | Bus error, master offline, bad shielding/grounding on bus lines | Check fieldbus line termination, shield connection, and master transmission state |
| CE2 | Communication Fault 2 | Parameter data transfer fault on fieldbus interface | Invalid parameter request sent via fieldbus | Check fieldbus master configuration and parameter telegram format |
| CE3 | Communication Fault 3 | System Bus (CAN) communication error | CAN bus line error, wrong baud rate, missing bus termination resistor | Check CAN bus wiring, 120 ohm line termination, and node IDs |
| CE4 | LECOM Communication Time-out | Time-out error on RS232/RS485 LECOM interface | PC connection cable disconnected, baud rate mismatch, parameterization software closed unexpectedly | Verify cable connection, serial port settings, and software communication state |
| Sd1 | Speed Sensor Fault | Fault detected in encoder / tachometer signal path | Encoder wire break, incorrect channel phase assignment, encoder power supply fault | Inspect encoder wiring, shield, supply voltage, and feedback option module |
| Sd6 | Motor Stall Fault | Motor locked or stalled under heavy load | Mechanical blockage, load inertia too high, acceleration time too short | Check motor mechanism for mechanical obstruction, review torque limits |
| PR0 | Parameter Set Invalid | Selected parameter set corrupted or empty | Power lost during parameter saving process, incompatible memory content | Reload parameter set from GDC backup or reset drive to factory defaults (C0002) |
| C003 | EEPROM Memory Fault | Internal EEPROM checksum error on parameter load | Data corruption in non-volatile memory | Perform factory parameter reset via parameter C0002; if fault persists, replace unit |
| C013 | Parameter Set Transfer Fault | Error during parameter copy between keypad and drive EEPROM | Keypad disconnected during transfer, incompatible parameter structure | Re-try transfer procedure, verify target drive firmware and power class match |
Frequently Asked Questions
How do I transfer parameters to a new Lenze E82EV251-2C drive?
Parameter sets can be copied using the EMZ8211BB XT keypad module, which stores settings in onboard memory for direct transfer to another inverter. Alternatively, parameters can be saved and restored using Lenze Global Drive Control (GDC) software version 4.0 or higher connected via a serial interface.
What do the front-panel LEDs indicate on the E82EV251-2C?
A solid green LED indicates normal enabled operation. Slow green flashing (1 Hz) signifies an inverter inhibit condition, and rapid green flashing (2 Hz) indicates quick stop or setpoint zero mode. A solid red LED signals an active TRIP fault, slow red flashing indicates a warning, and rapid red flashing indicates an active fault with auto-restart pending. If both LEDs are off, input line power is missing or an internal power supply issue exists.
Which fieldbus modules are compatible with the E82EV251-2C?
The E82EV251-2C accepts plug-in modules into its option slot, including the E82ZAFCC010 CANopen module, the E82ZAFPC001 PROFIBUS-DP module, and the E82ZAFSC010 Standard I/O module. It also supports System Bus (CAN) and LECOM serial communications.
How do I clear a PR0 or C003 memory fault?
Parameter corruption errors can be cleared by performing a factory reset using parameter C002 via keypad or GDC software. After resetting the drive, a valid parameter set must be reloaded from a software backup or cloned from an EMZ8211BB XT keypad module.
What is the official successor series for the Lenze 8200 Vector drives?
Lenze recommends the i550 Cabinet Inverter series as the modern migration successor for 8200 Vector drives during system upgrades.
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