Lenze EVF9330-EV 9300 Vector Frequency Inverter 45 kW
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Product Information
The Lenze EVF9330-EV is a 45 kW vector-controlled frequency inverter belonging to the Lenze 9300 Vector series. Delivering up to 89 A of continuous output current, this 3-phase AC drive operates across an input mains supply voltage range of 320 V AC to 528 V AC (rated 3x 400/480 V AC). It provides motor speed and torque regulation using either sensorless vector control or configurable V/f control modes across an output frequency range of 0 Hz to 480 Hz. This specific EVF9330-EV variant is built without an integrated RFI interference filter, making it suitable for cabinet installations configured with centralized external line filtering architectures.
Control wiring and automation integration are supported through 4 digital inputs, 2 digital outputs, 2 analog inputs, and 2 analog outputs, alongside an integrated 500 kbps CAN system bus interface. For fieldbus expansion, the unit features Automation Interface Slot B, accepting option cards such as the EMF2133IB or EMF2131IB PROFIBUS modules, as well as DeviceNet or INTERBUS cards. Commissioning a replacement unit requires transferring operational settings, as four internal parameter sets (PAR1 through PAR4) are retained in non-volatile EEPROM. Parameters can be extracted and restored using Lenze Global Drive Control (GDC) PC software or an EMZ9371BC Keypad XT operating module, where technical support from ABC Industrial Parts can assist in securing backup configurations for minimal machine downtime.
Status monitoring and diagnostic analysis are available directly on the drive. Front-panel Ready (Green) and Fault (Red) LEDs provide instant optical status for drive operational readiness, active motor operation, warning conditions, and trip states. Detailed fault logs are recorded internally across parameters C0168/1 through C0168/8, and live status codes can be monitored via the Keypad XT module or GDC software interface. While conditions such as overtemperature, supply voltage issues, or external short circuits can be resolved in the field by checking cooling, fuses, or motor wiring, internal hardware failures like power stage damage or control board faults require component-level repair. In these situations, ABC Industrial Parts offers tested replacement units and repair services to quickly restore production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVF9330-EV |
| Model / Type | EVF9330-EV |
| Product Family | 9300 Vector |
| Component Type | Frequency Inverter |
| Rated Power | 45 kW |
| Continuous Output Current | 89 A |
| Supply Voltage | 3x 400/480 V AC |
| Supply Voltage Range | 320 - 528 V AC |
| Output Voltage Range | 0 - 3x U_mains V AC |
| Output Frequency Range | 0 - 480 Hz |
| Switching Frequency | 4 kHz |
| Control Mode | Vector Control / V/f Control |
| Integrated RFI Filter | No (Without Interference Filter) |
| Onboard Fieldbus | CAN System Bus (500 kbps) |
| Fieldbus Expansion Slot | Automation Interface Slot B (PROFIBUS, DeviceNet, INTERBUS) |
| Digital I/O Channels | 4 Digital Inputs / 2 Digital Outputs |
| Analog I/O Channels | 2 Analog Inputs / 2 Analog Outputs |
Programming and Configuration
Parameter management on the Lenze EVF9330-EV frequency inverter relies on four internal parameter sets (PAR1 through PAR4) stored within non-volatile EEPROM. These sets retain motor ratings, acceleration and deceleration time ramps, maximum speed boundaries, and terminal I/O assignments. Engineers can program and adjust parameters using Lenze Global Drive Control (GDC) PC software over the CAN interface or directly at the machine using an optional EMZ9371BC Keypad XT operating module.
When commissioning a replacement drive, copying the application-specific parameter set from the original unit is necessary to ensure matching performance. If a parameter mismatch or transfer error occurs (indicated by fault code PR0), or if non-volatile memory corruption occurs (fault code EER), restoring factory default parameters prior to reloading the saved project file using GDC or the Keypad XT re-establishes valid operation.
Communication and System Integration
The EVF9330-EV features an onboard CAN system bus operating at transfer rates up to 500 kbps. This integrated communication channel enables direct networking between multiple Lenze 9300 Vector drives and higher-level controllers without complex point-to-point hardwiring. Proper bus topology requires 120-ohm terminating resistors at both ends of the CAN physical network line.
To connect to higher-level PLC industrial networks, the inverter includes a dedicated Automation Interface Slot (Slot B). This expansion port accommodates interchangeable communication cards, such as the EMF2133IB or EMF2131IB PROFIBUS-DP cards, as well as optional DeviceNet and INTERBUS modules. System integrators can configure network node addresses and fieldbus protocols directly through GDC software or keypad parameters.
Diagnostics and Status Indication
Drive diagnostic tracking on the Lenze EVF9330-EV is conducted via front-panel LED status indicators and parameter-based event logs. The internal diagnostic buffer records the last eight trip conditions in parameters C0168/1 through C0168/8, allowing maintenance technicians to evaluate fault sequences. A configurable internal relay output can also be assigned to signal Trip status to master control circuits.
Optical diagnostic indicators on the front panel provide real-time status feedback during operation and troubleshooting:
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Ready (Green) | Green - Solid / Flashing | Solid indicates drive is operational and ready; Flashing indicates controller active and motor operating. |
| Fault (Red) | Red - Solid / Flashing | Flashing indicates warning condition; Solid indicates active trip fault with controller inhibited. Continuous illumination after reboot indicates internal hardware error. |
Replacement and Spare Part Considerations
When replacing a Lenze EVF9330-EV, ensure the replacement unit matches the required power rating of 45 kW and current rating of 89 A. Verification of the model suffix is important: because the EVF9330-EV is built without an internal RFI filter, installing it into control cabinets configured with external central line filters maintains proper system noise mitigation and grounding characteristics.
Before applying power to operate a machine, transfer the stored parameter set (PAR1 through PAR4) from the original drive or backup file to the replacement unit using Lenze Global Drive Control software or an EMZ9371BC Keypad XT module. Additionally, verify that any fieldbus communication option cards in Slot B (such as PROFIBUS EMF2133IB or EMF2131IB) are correctly seated and configured with matching node address settings. For long-term system modernization, Lenze recommends the i550 cabinet frequency inverter series as the migration path.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| OH | Overtemperature Heatsink | Drive heatsink temperature exceeded maximum threshold. | Inadequate ventilation, dirty heatsink cooling fins, cabinet fan failure, or high ambient temperature. | Check cabinet cooling and clean heatsink fins. Allow drive to cool down before resetting TRIP. |
| OH4 | Overtemperature Interior | Internal air temperature inside the frequency inverter exceeded safety limit. | Enclosure cooling failure or excessive internal power dissipation. | Improve enclosure ventilation and inspect internal drive fan operation. |
| OC1 | Short Circuit | Instantaneous motor current peak exceeded maximum hardware threshold. | Short circuit in motor windings, short circuit in output cables, or extreme acceleration ramp. | Check motor cabling and motor insulation. Extend acceleration time ramps if cause is dynamic overload. |
| OC2 | Earth Fault | Ground fault detected in motor output phase or motor frame. | Ground insulation failure in motor cable, moisture in motor junction box, or damaged motor winding. | Test motor phase-to-ground resistance using insulation tester. Check output cable integrity. |
| OC5 | I*t Overload | Continuous current overload exceeded thermal capacity limit of inverter (150% overload for > 60s). | Mechanical blockage, undersized drive for current load, motor overload. | Check load mechanics for binding or excessive torque demand. Reduce continuous load current. |
| OU | Overvoltage DC Bus | DC bus voltage exceeded maximum limit (approx. 770 V DC). | Excessive generative power during motor deceleration; braking chopper or braking resistor not connected/defective. | Extend deceleration time ramps (decel time) or install external braking chopper module and resistor. |
| LU | Undervoltage DC Bus | DC bus voltage dropped below minimum operating limit. | Mains supply brownout, missing phase, main contactor dropped out, or supply line impedance too high. | Check input mains line voltage and phase balance. |
| LP1 | Mains Phase Failure | Failure or high ripple detected on incoming 3-phase AC power input. | Blown mains input fuse, disconnected line phase, loose supply wiring. | Inspect input power line fuses, wiring connections, and phase voltage symmetry. |
| NMAX | Max Speed Exceeded | Motor actual speed exceeded maximum speed setting C0032. | Overhauling load, incorrect speed controller tuning, motor encoder slip. | Check mechanical load dynamics and parameter C0032 limit setting. |
| EER | EEPROM Fault | Checksum fault or read/write error during internal EEPROM access. | Corrupted non-volatile memory or internal hardware circuit failure. | Power cycle unit. Reload factory default parameter set. If error persists, internal hardware fault — return unit for repair. |
| H05 | Internal Hardware Error | Internal control board self-test failure. | Component failure on main control board or microprocessor circuit fault. | Internal hardware fault — not field serviceable. Return unit for repair or replace inverter. |
| H10 | Power Stage Hardware Fault | Failure detected in internal IGBT output power driver stage. | Damaged output driver, failed gate drive board, or shorted IGBT module. | Internal hardware fault — return unit for repair or replace inverter. |
| H11 | Internal Supply Failure | Internal 24 V DC control voltage or internal power supply out of tolerance. | Defective internal power supply subassembly or short on external 24V supply terminals. | Disconnect external 24V wiring to check for external short. If trip persists, internal hardware fault — return unit for repair. |
| CE0 | System Bus Fault Slot A | Communication interruption or bus off state on integrated CAN system bus. | Broken CAN bus cable, missing terminating resistors (120 Ohm), incorrect baud rate. | Check CAN bus wiring, shield grounding, terminating resistors, and baud rate settings. |
| CE1 | Automation Module Fault Slot B | Communication timeout or module error on fieldbus interface in Slot B. | Loose fieldbus option card, network cable disconnected, master PLC communication failure. | Check seating of option card in Slot B, network connection, and master fieldbus status. |
| PR0 | Parameter Set Error | Selected parameter set contains invalid data or checksum mismatch. | Interrupted parameter transfer or incomplete initialization. | Re-download valid parameter set using GDC or Keypad XT. |
Frequently Asked Questions
What software and keypad module are compatible with the Lenze EVF9330-EV?
The EVF9330-EV frequency inverter is configured using Lenze Global Drive Control (GDC) PC software via the CAN interface or locally using the Lenze EMZ9371BC Keypad XT operating module.
Does the EVF9330-EV inverter include an integrated RFI filter?
No, the EVF9330-EV model is designed without an internal RFI filter, making it suitable for cabinet installations that utilize centralized external line filters.
How are parameters transferred to a replacement EVF9330-EV drive?
Parameters stored across the four non-volatile internal parameter sets (PAR1–PAR4) can be uploaded using GDC software or saved to an EMZ9371BC Keypad XT module and then downloaded directly into the replacement inverter.
Which fieldbus modules can be used with the EVF9330-EV?
In addition to the built-in 500 kbps CAN system bus, Automation Interface Slot B accepts pluggable fieldbus modules including PROFIBUS-DP (EMF2133IB / EMF2131IB), DeviceNet, and INTERBUS cards.
What actions should be taken if fault code H05 or H10 appears?
Fault codes H05 (internal control board failure) and H10 (IGBT power stage hardware fault) indicate internal circuit failures that are not field-serviceable. The inverter must be returned for repair or replaced.
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