Lenze EVF9330-EH 9300 Vector Frequency Inverter 75 kW 145 A
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Product Information
The Lenze EVF9330-EH is a 75 kW vector frequency inverter from the 9300 Vector series, engineered to control speed and torque in heavy-duty three-phase AC motor applications. Operating across an AC supply range of 320 V to 528 V AC with a continuous output current rating of 145 A, this AC drive delivers adaptable motor control using sensorless vector control, closed-loop vector control, or V/f characteristic curves up to a maximum output frequency of 480 Hz. The -EH designation indicates an integrated radio interference suppression filter, which provides high EMC compliance without requiring separate external RFI filtering accessories in the cabinet panel layout.
Integrating a replacement EVF9330-EH unit into an existing machine requires matching communication setups and transferring stored drive configurations. The inverter features six digital inputs, four digital outputs, two analog inputs, and two analog outputs alongside an onboard CANopen system bus interface accessed via terminal X4. Optional fieldbus expansion modules—such as the EMF2133IB or EMF2131IB PROFIBUS-DP and EMF2173IB DeviceNet interfaces—can be swapped directly into the automation slot. Commissioning a replacement drive requires reloading the exact application parameters using either the pluggable EMZ9371BC keypad operating module or Lenze Global Drive Control (GDC) software. ABC Industrial Parts can support maintenance teams requiring tested spare units or assistance with parameter extraction from damaged non-volatile EEPROM memory.
Diagnostic conditions on the EVF9330-EH are identified via onboard status LEDs for RUN, TRIP, and Warning conditions, as well as diagnostic code readings on the EMZ9371BC keypad and parameter logs C0161 through C0170 in GDC software. Common application trips, such as overcurrent (OC1, OC2), DC bus overvoltage (OU), or motor overtemperature (OH3, OH7), often point to external issues like ground faults, tight acceleration ramps, or loose thermistor wiring on terminal X10. However, internal hardware errors such as H05 or internal power stage failures designated by PINT indicate hardware damage within the gate driver or control board that cannot be serviced in the field. Under these circumstances, replacing the unit or dispatching it for qualified hardware repair through ABC Industrial Parts is the fastest route to restoring production.
Technical Specifications
| Rated Power Output | 75 kW |
| Minimum Supply Voltage | 320 V AC |
| Maximum Supply Voltage | 528 V AC |
| Rated Mains Current | 145 A |
| Continuous Output Current | 145 A |
| Minimum Output Frequency | 0 Hz |
| Maximum Output Frequency | 480 Hz |
| Switching Frequency | 8 kHz |
| Control Method | Vector control / V/f characteristic control |
| Digital Inputs | 6 |
| Digital Outputs | 4 |
| Analog Inputs | 2 |
| Analog Outputs | 2 |
| Integrated System Bus | CANopen (CAN) |
| Radio Interference Suppression | Integrated RFI Filter (-EH) |
Programming and Configuration
Parameter management and drive commissioning on the Lenze EVF9330-EH are handled using Lenze Global Drive Control (GDC) software or the detachable EMZ9371BC keypad operating module. All operating parameters are stored in non-volatile internal EEPROM memory. The drive architecture supports four independent internal parameter sets, allowing operators to switch between pre-configured operational profiles during product changeovers without full re-commissioning.
When installing a replacement unit, drive parameter settings must be transferred to preserve precise motor control limits, I/O assignments, and fieldbus profiles. Parameters can be copied directly using the EMZ9371BC keypad memory function or downloaded via GDC software. If parameter data becomes corrupted or inconsistent, setting code C0002 to 1 resets the drive to factory default settings, allowing a clean upload of saved application files. Mismatched parameter sets or incomplete EEPROM writes trigger errors such as PR1 or EE, which require parameter re-loading before operation.
Communication and System Integration
The EVF9330-EH features an onboard CANopen system bus interface wired through terminal block X4. This integrated CAN interface allows high-speed system bus communication and cross-drive interlinking. To ensure reliable data transmission across the CAN bus network, terminal lines must be fitted with 120 ohm terminating resistors at both physical ends of the network loop.
For integration into broader industrial automation architecture, the inverter includes a modular expansion slot that accepts 2100 series communication modules. Compatible optional fieldbus hardware includes the EMF2133IB and EMF2131IB PROFIBUS-DP modules, the EMF2173IB DeviceNet module, and INTERBUS interface cards. Communication interruptions on these slots trigger specific diagnostics, such as CE0 for CANbus errors or CE1 for automation slot process data channel faults.
Diagnostics and Status Indication
Real-time operational feedback on the Lenze EVF9330-EH is provided through three status LEDs on the control board: RUN (Green), TRIP (Red), and Warning (Yellow). These LEDs indicate normal running states, active trip conditions, or operational limits such as current or torque boundaries. Comprehensive diagnostic monitoring is also accessible by plugging the EMZ9371BC keypad into the front interface or connecting GDC software to inspect system bus telegrams.
The drive maintains an internal history log spanning parameter codes C0161 through C0170. This fault memory records historical trip conditions to assist technicians in identifying intermittent application issues. Diagnostic views display detailed codes for overvoltage, ground leakage, motor overtemperature, and network timeout conditions.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| RUN | Green - Solid / Flashing | Drive in normal operation mode |
| TRIP | Red - Solid / Flashing | Drive fault or trip condition detected |
| Warning | Yellow - Solid / Flashing | Drive operating near current or torque limit |
Replacement and Spare Part Considerations
When swapping a damaged drive for a replacement Lenze EVF9330-EH, confirm that the replacement matching part number contains the -EH suffix. The -EH designation indicates an integrated radio interference suppression filter; substituting a standard variant without internal filtering may lead to EMC non-compliance or require installing additional external panel filters.
Before applying power to the replacement drive, transfer any installed fieldbus cards (such as PROFIBUS EMF2133IB/EMF2131IB or DeviceNet EMF2173IB) into the expansion slot. Ensure motor PTC thermistor wiring is securely landed on terminal block X10 to prevent false OH3 or OH7 trip conditions, and verify that CANbus termination resistors are installed if terminal X4 is used.
Once physical installation is complete, load the matching parameter file from a backup copy via Global Drive Control (GDC) software or use the EMZ9371BC keypad to copy the parameter set. If an internal hardware error like H05 or PINT caused the original failure, repair of internal power boards or gate drivers is required as these faults cannot be cleared through parameter resets.
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 / Overcurrent | Instantaneous overcurrent in the output power stage | Short circuit between motor phases or earth fault, extremely fast acceleration ramp, damaged motor insulation | Check motor and motor cable for short circuit or earth fault; check acceleration time settings. |
| OC2 | Earth fault / Overcurrent during acceleration | Earth fault or current threshold exceeded during motor acceleration | Ground leak in motor winding or cable, acceleration time too short | Check motor insulation resistance, check wiring to ground, extend acceleration ramp. |
| OC5 | Drive overload (I x t) | I x t overload threshold of the inverter reached | Continuous motor overload, drive underdimensioned for application | Reduce load on motor, check drive sizing, check mechanical binding. |
| OU | DC bus overvoltage | Intermediate circuit DC voltage exceeds maximum threshold limit | Braking energy feedback too high during deceleration, deceleration ramp too short, mains supply voltage too high | Extend deceleration time, install brake chopper and braking resistor, check supply AC voltage. |
| LU | DC bus undervoltage | Intermediate circuit DC voltage dropped below lower threshold limit | Mains voltage failure, input phase missing, mains supply voltage too low | Check AC mains supply voltage, check fuses and main contactor. |
| OH | Heat sink overtemperature | Heat sink temperature exceeded 90 °C limit | Cooling fan failed, air vents blocked, ambient temperature too high, heavy continuous overload | Clean heat sink fins, replace internal fan if stopped, check cabinet ventilation. |
| OH3 | Motor overtemperature | Motor temperature sensor or PTC thermistor triggered overheat condition | Motor thermal overload, cooling fan on motor failed, PTC sensor cable broken | Allow motor to cool, verify thermal sensor wiring on terminal X10, check motor load. |
| OH4 | Inverter interior overtemperature | Internal cabinet / control board temperature inside inverter too high | Enclosure ventilation insufficient, internal fan failure | Improve enclosure cooling, inspect internal cabinet airflow. |
| OH7 | Motor temperature sensor open circuit | Wire break in motor temperature evaluation input | Broken cable or loose terminal connection at thermistor input | Check wiring to thermistor / thermal sensor on terminals. |
| NMAX | Overspeed / Maximum speed exceeded | Actual motor speed exceeded configured maximum limit | Encoder fault, gain settings incorrect in speed controller, overhauling load | Check speed feedback sensor/encoder, verify PID speed controller parameters. |
| CE0 | System bus communication error (CAN) | Interruption in communication over internal/external CAN system bus | Bus wiring fault, bus termination missing, node offline or address conflict | Check CANbus connection terminals X4, verify 120 ohm terminating resistors, check baud rate. |
| CE1 | Process data input error 1 | Communication failure on automation module slot process data channel 1 | Fieldbus master stopped, communication cable broken, fieldbus module fault | Check fieldbus module connection, check master PLC status and cabling. |
| EE | EEPROM memory error | Internal checksum error or memory corrupted during reading/writing parameter set | Power failure during write cycle, corrupt EEPROM chip, internal hardware failure | Reload factory default settings (C0002 = 1); if fault persists, hardware repair or unit replacement required. |
| H05 | Internal hardware error | Power section or control board failure detected during internal diagnostic check | Internal board component failure, gate driver fault, internal supply error | Internal hardware fault — unit is not field-serviceable, return unit to Lenze for service or replace. |
| LP1 | Mains phase failure | Failure of one line phase in the 3-phase AC input | Blown mains fuse, loose phase connection, heavy supply voltage imbalance | Check input fuses and mains phase voltages under load. |
| PINT | Power section internal error | Communication fault or internal trip signal between power board and control board | Internal ribbon cable fault, defective power board or driver stage | Internal hardware fault — board replacement or unit return required. |
| PR1 | Parameter set error | Parameter set stored in EEPROM is invalid or inconsistent | Incomplete transfer or mismatch between firmware versions | Restore factory default settings and re-commission drive. |
Frequently Asked Questions
What software and accessories are used to configure the Lenze EVF9330-EH?
The EVF9330-EH is configured using Lenze Global Drive Control (GDC) software or directly via the pluggable EMZ9371BC keypad operating module, which allows parameter uploads, downloads, and status monitoring.
What does the -EH suffix mean on the EVF9330-EH inverter?
The -EH suffix indicates that the drive contains an integrated radio interference suppression (RFI) filter. This internal filter provides high EMC compliance without requiring external line filtering components.
How do I clear an EE or PR1 fault code on the EVF9330-EH?
EE and PR1 indicate EEPROM parameter corruption or invalid parameter sets. Reset the inverter to factory defaults by setting parameter code C0002 = 1, then reload the saved application parameter set using GDC software or the EMZ9371BC keypad.
Which fieldbus modules are compatible with the EVF9330-EH expansion slot?
The expansion slot supports 2100 series automation modules, including EMF2133IB and EMF2131IB PROFIBUS-DP cards, EMF2173IB DeviceNet modules, and INTERBUS fieldbus interfaces.
Can an H05 or PINT internal hardware fault be repaired in the field?
No. Fault codes H05 and PINT indicate internal control board, ribbon cable, or power stage component failures. These faults are not field-serviceable and require board-level hardware repair or complete drive replacement.
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