Lenze 13127094 E82EV751_4C 8200 Vector Frequency Inverter
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Product Information
The Lenze 13127094 (Model E82EV751_4C) is a 0.75 kW frequency inverter from the Lenze 8200 vector series designed for speed and torque control of three-phase AC motors. Operating on a 3-phase mains supply voltage range of 320 V AC to 550 V AC, this compact drive provides a rated output current of 2.5 A with a maximum output current capability of 3.8 A and an output frequency range of 0 to 480 Hz. Housed in a Design C thermal enclosure rated IP20 for control cabinet panel mounting, the unit supports Sensorless Vector Control (SLVC) alongside linear and quadratic V/f control curves. An integrated braking chopper comes standard for handling dynamic braking requirements in conveyor, packaging, pump, and fan applications.
Connecting the drive into an automated system is accomplished through its modular interface slot, which accepts interchangeable plug-in function modules such as the Lenze E82ZAFCC CANopen module or the Lenze E82ZAFPC PROFIBUS-DP module, as well as System Bus CAN and AS-Interface options. When replacing an existing drive, a replacement unit is rarely plug-and-run because drive parameters, motor settings, and control configurations must match the specific machine installation. The E82EV751_4C supports four switchable internal parameter sets, allowing multi-mode machine operation. Parameter transfer from a failed inverter to a replacement spare can be performed using the pluggable Lenze E82ZBC XT Keypad or software tools such as Global Drive Control (GDC) and EASY Starter, with technical support available from ABC Industrial Parts for pre-commissioning and parameter recovery.
System status and operating conditions are indicated by two front-mounted status LEDs—a green LED indicating operation and ready status, and a red LED signaling fault or error conditions. Detailed diagnostics are available via the XT Keypad status display (showing indications like IMP and Active Code), software monitoring, or by reviewing the internal fault code history buffer which records the last four fault events in parameters C0161 through C0164. First-line troubleshooting for fault conditions like overvoltage (OU), undervoltage (LU), earth fault (OC2), or short circuit (OC1) should include inspecting input supply voltages, motor leads, and cooling airflow. Unresolvable memory errors (EER) or internal hardware errors (H05) indicate internal control board failure, in which case returning the unit for repair or sourcing a tested exchange module through ABC Industrial Parts provides a fast route back to full operation.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 13127094 |
| Model / Type | E82EV751_4C |
| Product Family | 8200 vector |
| Component Type | Frequency Inverter |
| Rated Power | 0.75 kW |
| Supply Voltage Range | 320 - 550 V AC (3-phase) |
| Rated Output Current | 2.5 A |
| Maximum Output Current | 3.8 A |
| Output Voltage Range | 0 - 400 V AC |
| Output Frequency Range | 0 - 480 Hz |
| Switching Frequency | 8 kHz |
| Control Modes | Sensorless Vector Control (SLVC), V/f linear, V/f quadratic |
| Protection Rating | IP20 |
| Mounting Style | Control cabinet panel mount (Design C) |
| Integrated Braking Chopper | Built-in standard |
| Fieldbus Communication Options | Optional via plug-in module (CANopen, PROFIBUS-DP, AS-Interface, System Bus CAN) |
Programming and Configuration
Engineering and parameter management for the Lenze 13127094 E82EV751_4C frequency inverter are conducted using Lenze Global Drive Control (GDC) or EASY Starter software tools. The inverter maintains up to four internal parameter sets that can be independently stored and switched during operation. This multi-parameter feature allows fast reconfiguration for machines operating with variable product runs or multiple function profiles.
Local parameter adjustments and status monitoring can be performed directly at the cabinet without a PC by attaching the pluggable Lenze E82ZBC XT Keypad into the front slot. Essential maintenance procedures include restoring factory default parameters via parameter C0002 and setting maximum speed thresholds in parameter C0011. When commissioning a spare drive, parameter sets can be copied directly from the original unit via the XT Keypad or uploaded from saved software project files.
Communication and System Integration
The Lenze 8200 vector series features a modular communication interface system. The E82EV751_4C drive incorporates a dedicated plug-in module slot on the front fascia, allowing fieldbus integration without altering the underlying power section or base drive wiring.
Supported communication protocols include CANopen via the Lenze E82ZAFCC function module and PROFIBUS-DP via the Lenze E82ZAFPC function module, alongside System Bus CAN and AS-Interface options. Network node addresses, baud rates, and protocol parameters are set either through the inverter parameter structure or via switches located directly on the installed fieldbus module.
Diagnostics and Status Indication
Visual status monitoring on the Lenze E82EV751_4C is provided by two front panel LEDs that show operational readiness and error states. Diagnostic tracking is supported by an internal fault memory buffer that records the last four fault events in parameters C0161 through C0164.
Technicians can inspect active operating status codes (such as IMP) and historical error logs using the plug-in E82ZBC XT Keypad or via live software monitoring inside Global Drive Control and EASY Starter.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Red LED | Red - Solid/Flashing | Fault / Error condition |
| Green LED | Green - Solid/Flashing | Operation / Ready status |
Replacement and Spare Part Considerations
When replacing a Lenze 13127094 E82EV751_4C frequency inverter, confirm that the replacement drive shares the exact part number and model designation to ensure match for the 3-phase 320–550 V AC supply voltage and 0.75 kW power rating. Because network communications rely on modular plug-in cards, the original function module (such as Lenze E82ZAFCC or E82ZAFPC) must be transferred to the replacement unit's interface slot.
Before operating the replacement drive with a motor load, drive parameters must be loaded from a saved software project or copied from the original inverter using the Lenze E82ZBC XT Keypad. Verify motor nameplate values, control method selection (SLVC vs V/f), acceleration/deceleration ramp times, and fieldbus node configurations. If the original inverter suffered EEPROM corruption (EER) or control board failure (H05), parameter sets must be re-loaded from software backups or machine parameter archives.
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 at the output terminals or excessive capacitive motor lead current | Short circuit in motor cable or motor winding; motor cable length exceeds permissible limit; acceleration time too short | Check motor cable and motor for short circuits; reduce cable length or use motor filter; increase acceleration time |
| OC2 | Earth fault | Earth / ground fault detected at output terminals | Ground fault in motor lead or motor insulation | Check motor cables and motor winding insulation against protective earth |
| OC5 | I x t Overload | Continuous overload requirement (>150% output current limit exceeded) | Frequent or prolonged overload; drive undersized for dynamic load requirements; mechanical blockage | Check drive dimensioning; check mechanical load for stiffness/blockage; reduce overload duration |
| OU | Overvoltage DC bus | DC bus voltage exceeds maximum upper threshold | Regenerative energy from motor during deceleration is too high; braking resistor defective or missing; deceleration ramp too short | Extend deceleration time (ramp down time); verify function of external braking resistor and brake chopper |
| LU | Undervoltage DC bus | DC bus voltage dropped below minimum operating limit | Mains supply voltage too low; phase failure on AC input; power outage | Check mains input voltage and power supply wiring/fuses |
| OH | Heatsink overtemperature | Heat sink temperature exceeded maximum allowed limit | Inadequate cooling airflow; ambient temperature too high; dirty heat sink fins; cooling fan defective | Clean heatsink fins; improve cabinet ventilation/cooling; replace defective internal cooling fan |
| OH4 | Motor thermal overload (PTC) | Motor temperature sensor trip triggered (terminals T1/T2) | Motor thermal overload; PTC thermistor tripped; thermistor cable broken or disconnected | Allow motor to cool down; check mechanical load; check motor PTC thermistor wiring |
| OH7 | Interior overtemperature | Enclosure interior temperature exceeded limit threshold | Excessive internal cabinet temperature | Improve cooling inside control cabinet |
| CE0 | Communication error | Communication failure on function module interface | Function module loose or defective; interference on communication line | Verify function module seating and connection; inspect shielding and grounding |
| CE1 | System bus CAN fault (CAN-In1) | Time-out during system bus / CANopen communication | Bus line interrupted; master controller offline; incorrect node address or baud rate | Check CAN bus cable, termination resistors, and parameter settings |
| EER | EEPROM memory error | EEPROM memory failure or parameter data corruption | Internal power interruption during write operation; internal non-volatile memory fault | Reload factory default settings (C0002); internal hardware fault - return unit for repair if error persists |
| H05 | Internal hardware fault | Internal hardware or control board error | Defective internal control board or power section components | Internal hardware fault - return unit for repair or replace inverter |
| NMAX | Maximum speed exceeded | Motor speed exceeded parameter maximum limit threshold | Overhauling load; incorrect motor parameter setup | Check speed controller tuning, load mechanics, and parameter C0011 |
| LP1 | Mains phase failure | Phase failure detected on input supply mains | Missing phase on supply line; input fuse blown | Check mains line supply voltages and input line fuses |
Frequently Asked Questions
What software is used to configure parameters on the Lenze E82EV751_4C?
Configuration, parameter backup, and diagnostics are performed using Lenze Global Drive Control (GDC) or EASY Starter software. Parameters can also be backed up and transferred using the pluggable Lenze E82ZBC XT Keypad.
Can the Lenze 13127094 inverter connect to CANopen or PROFIBUS networks?
Yes. The inverter features a modular interface slot that accepts plug-in function modules, including the Lenze E82ZAFCC for CANopen and the Lenze E82ZAFPC for PROFIBUS-DP, as well as AS-Interface and System Bus CAN modules.
How do I clear a DC bus overvoltage (OU) fault during deceleration?
An OU fault occurs when regenerative energy from the motor raises the DC bus voltage beyond its upper limit. Extend the deceleration ramp time, check the operation of the integrated braking chopper, and verify that the external braking resistor is properly wired and functional.
What does fault code H05 mean on the Lenze E82EV751_4C drive?
Fault code H05 indicates an internal hardware fault within the control board or power section components. Internal hardware faults cannot be serviced in the field and require returning the unit for repair or replacing the inverter.
Is a replacement Lenze E82EV751_4C inverter plug-and-play?
No. A replacement inverter requires parameter transfer to match your motor characteristics, control parameters, and fieldbus settings. Parameter sets must be loaded via the XT Keypad or Lenze software before putting the drive into service.
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