Lenze 00400372 EVF9325-EV 9300 Vector Frequency Inverter
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Product Information
The Lenze 00400372 EVF9325-EV is an 11 kW panel-mounted frequency inverter belonging to the 9300 Vector product family. Operating from a three-phase supply voltage range of 320 to 528 V AC, this drive delivers an output voltage of 0 to 480 V AC with a continuous rated output current of 23.5 A and a peak output current of 35.3 A. Designed for speed and torque regulation across an output frequency range of 0 to 480 Hz, it supports sensorless vector control, standard V/f characteristic control, and direct torque control. The unit includes an integrated dynamic brake chopper circuit for controlling dynamic braking during load deceleration and features a panel-mount design with an integrated heatsink for thermal dissipation.
For system connectivity, the unit is equipped with an onboard CANbus system bus interface supporting communication speeds up to 500 kbps, alongside an Automation Interface (AIF) slot for plug-in fieldbus modules such as the EMF2133IB PROFIBUS-DP adapter. Hardwired integration is supported through 6 digital inputs, 4 digital outputs, 2 analog inputs, and 2 analog outputs. Commissioning a replacement unit requires transferring parameter settings into the drive's non-volatile memory, which holds up to four distinct parameter sets. Parameter transfer can be executed using Lenze Global Drive Control (GDC) software or cloned via the plug-in EMZ9371BC operating keypad. ABC Industrial Parts can assist maintenance teams with verified replacement units and parameter backup solutions to restore drive operation rapidly.
Operational status and active drive states are indicated via dual front-panel LEDs and diagnostic screens. A solid or flashing green LED indicates ready or enabled operation, whereas a solid or flashing red LED signals an active fault condition or inverter trip. Detailed diagnostics are accessible through the EMZ9371BC keypad or GDC software diagnostic windows, reading from an internal fault history buffer. Faults such as overcurrent (OC1–OC5), DC bus overvoltage (OU), and undervoltage (LU) point toward output short circuits, improper acceleration/deceleration ramps, or supply voltage fluctuations. When internal hardware self-test errors (H05) occur or a red LED remains lit with no communication, the fault is internal to the control board and cannot be serviced in the field, making a tested replacement drive from ABC Industrial Parts the recommended path back to production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 00400372 |
| Model / Type | EVF9325-EV |
| Product Family | 9300 Vector |
| Component Type | Frequency Inverter |
| Rated Power | 11 kW |
| Supply Voltage Range | 320 - 528 V AC |
| Rated Output Current | 23.5 A |
| Peak Output Current | 35.3 A |
| Output Voltage Range | 0 - 480 V AC |
| Output Frequency Range | 0 - 480 Hz |
| Switching Frequency | 8 kHz |
| Control Modes | Sensorless Vector, V/f Control, Torque Control |
| Digital I/O | 6 Inputs / 4 Outputs |
| Analog I/O | 2 Inputs / 2 Outputs |
| Communication Interfaces | Onboard CANbus/CANopen, AIF Expansion Slot |
| Mounting Type | Panel Mount with Heatsink |
Programming and Configuration
The Lenze EVF9325-EV frequency inverter uses non-volatile internal EEPROM storage capable of retaining up to four individual parameter sets. Configuration and parameter management are performed using Lenze Global Drive Control (GDC) software connected via an appropriate PC adapter, or directly through the optional EMZ9371BC keypad operating module. When replacing a drive unit, stored parameters can be uploaded to the EMZ9371BC keypad from a donor inverter and downloaded into the spare unit without requiring a laptop.
In cases where an invalid or mismatched parameter structure is transferred—such as loading data from an inverter of a different power rating or control revision—the drive generates a PR0 parameter set error. Resolving this fault requires restoring factory default parameter sets using the keypad or GDC software, followed by re-downloading the verified application parameter file.
Communication and System Integration
System networking on the Lenze 00400372 EVF9325-EV is handled via onboard and expansion communication channels. The drive comes standard with an integrated CANbus/CANopen system bus interface operating at speeds up to 500 kbps, enabling high-speed inter-drive communication and coordinated multi-axis motion without additional interface cards.
For broader automation architectures, the integrated Automation Interface (AIF) slot accepts optional plug-in fieldbus modules, including the EMF2133IB PROFIBUS-DP module, INTERBUS, or LECOM RS232/RS485 adapters. Hardwired control integration is supported through 6 digital inputs, 4 digital outputs, 2 analog inputs, and 2 analog outputs.
Diagnostics and Status Indication
Drive diagnostics on the EVF9325-EV are provided through front-panel status LEDs, the EMZ9371BC keypad display, and Lenze Global Drive Control (GDC) software. Dual LEDs display primary operational states, while detailed operating data and fault history buffers—recording past error events with operating timestamps—can be interrogated via the keypad display or network status words.
The green LED indicates operational readiness or controller enable state, whereas the red LED illuminates during active trip conditions or errors. If the red LED remains lit continuously with communication disabled, an internal hardware failure on the control board is indicated.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Red LED | Red - Solid / Flashing | Fault active (Trip state / Inverter disabled due to error condition). If permanently lit with no communication, indicates internal board/hardware fault. |
| Green LED | Green - Solid or Flashing | Ready for operation / Controller enabled (steady green = operation enabled, blinking green = ready for operation / pulse inhibit). |
Replacement and Spare Part Considerations
When replacing an existing Lenze 00400372 EVF9325-EV inverter, matching the 11 kW output power and physical footprint allows for a direct mechanical retrofit within existing control cabinets without modifying panel mounting or heatsink cutouts.
Before commissioning a replacement drive, software configuration alignment is essential. Ensure that parameter sets are extracted from the original unit via Global Drive Control (GDC) software or copied to an EMZ9371BC keypad. Additionally, check network hardware settings on any plug-in AIF modules, such as fieldbus address switches or termination resistors on PROFIBUS (EMF2133IB) or CANbus links.
In the event of unresolvable internal memory faults (EE1) or control board self-test errors (H05), board-level repair or swapping with a tested replacement unit avoids prolonged machine downtime.
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 / Earth fault | Short circuit or earth fault on output motor terminals U, V, W. | Short circuit in motor cable or motor winding, ground fault in motor circuit, acceleration time set too short. | Check motor and power wiring for insulation failure or short circuit. Increase acceleration ramp time. If fault persists with motor disconnected, internal inverter output stage hardware failure requiring return for repair. |
| OC2 | Earth fault | Earth fault / ground fault detected at output. | Earth fault in motor cable, capacitive charging currents on long motor cables. | Check motor cable insulation and ground connections. Use output filter for long motor cables. |
| OC3 | Overcurrent during acceleration | Output current exceeds threshold limit during acceleration ramp. | Acceleration time too short, motor undersized, mechanical jam/load obstruction. | Extend acceleration time, check motor load and mechanical brake. |
| OC4 | Overcurrent during deceleration | Output current exceeds threshold limit during deceleration ramp. | Deceleration time too short, braking energy too high. | Extend deceleration time, install or check brake module / brake resistor. |
| OC5 | Overcurrent during constant operation | Overcurrent during steady-state operation. | Abrupt load change, motor stalled, drive overload. | Check mechanical load and process stability. |
| OU | Overvoltage DC bus | DC bus voltage exceeded upper safety threshold (approx. 770 V DC). | Regenerative energy from motor too high, deceleration ramp too short, missing or defective brake chopper/resistor. | Increase deceleration ramp time, check dynamic brake module and resistor value. |
| LU | Undervoltage DC bus | DC bus voltage dropped below lower threshold (approx. 430 V DC). | Mains supply voltage missing or unstable, phase failure, mains fuse blown. | Check mains voltage, supply fuses, and wiring. |
| OH | Heatsink overtemperature | Inverter heatsink temperature exceeded upper thermal limit (> 85 °C). | Ambient temperature too high, cooling fan failed or clogged, insufficient enclosure ventilation. | Clean heatsink, check fan operation, verify cabinet ventilation and ambient temperature. |
| OH4 | Motor thermal overload (I2t) | Calculated motor thermal load reached maximum capacity. | Continuous overload at low motor speed without force cooling, incorrect motor thermal parameters. | Check motor mechanical load, verify motor parameters in drive configuration, add external forced cooling fan to motor. |
| OH7 | Inside inverter overtemperature | Internal air temperature inside the inverter enclosure exceeded safe operating limit. | Cabinet ambient temperature too high, internal ventilation blocked. | Improve enclosure cooling, verify cabinet fan operation. |
| OH8 | Motor temperature sensor trip | Motor PTC or KTY temperature sensor triggered alarm. | Motor actual temperature exceeded safe limit, thermistor wiring loose/broken. | Allow motor to cool down, check thermistor wiring (terminals T1/T2), inspect motor cooling. |
| CE0 | Communication error - AIF module | Communication interruption between inverter control board and plug-in AIF module. | AIF module incorrectly seated, defective module, fieldbus network error. | Re-seat communication module, check fieldbus cabling and termination resistors. |
| CE1 | Communication error - System Bus (CAN) | System bus (CAN) communication telegram failure / timeout. | CAN bus connection interrupted, incorrect baud rate, missing bus termination (120 Ohm). | Verify CANbus wiring, shield grounding, baud rate settings, and terminating resistors. |
| EE1 | EEPROM data error | Corrupted parameter data detected in internal EEPROM memory. | Power failure during parameter saving, internal EEPROM hardware fault. | Load factory default settings and reload parameter set. Internal memory failure — replace unit if fault persists. |
| H05 | Internal hardware fault | Internal control board self-test failed. | Board hardware damage or micro-controller failure. | Internal hardware fault — non-field serviceable. Return unit for repair or replace inverter. |
| LP1 | Motor phase failure | Open circuit detected on output phase U, V, or W. | Loose motor terminal connection, cable break, open motor winding. | Check motor wiring connections and motor coil resistance. |
| PR0 | Parameter set error | Incompatible or invalid parameter set loaded. | Parameter transfer from different inverter size or firmware generation. | Re-initialize parameters to factory defaults and parameterize manually or via GDC. |
Frequently Asked Questions
How are parameters transferred to a replacement Lenze EVF9325-EV drive?
Parameter sets can be uploaded and downloaded using Lenze Global Drive Control (GDC) software, or cloned directly between drives using the plug-in EMZ9371BC operating keypad without requiring a computer.
What fieldbus interfaces are available on the Lenze 00400372?
The drive includes an onboard CANbus/CANopen system bus interface supporting up to 500 kbps and an Automation Interface (AIF) slot for plug-in modules such as the EMF2133IB PROFIBUS-DP, INTERBUS, or LECOM RS232/RS485 adapters.
What does a solid Red LED indicate on the EVF9325-EV drive?
A solid Red LED indicates an active trip state or fault condition. If the LED remains continuously lit with no fieldbus or keypad communication, an internal hardware failure on the control board is indicated.
How should an H05 fault code be resolved?
An H05 fault indicates an internal hardware self-test failure on the control board. This condition cannot be serviced in the field and requires returning the drive for repair or replacing the unit.
What causes an OC1 overcurrent fault during operation?
An OC1 fault indicates a short circuit or earth fault on motor terminals U, V, or W. It is caused by damaged motor cable insulation, motor winding failure, or an excessively short acceleration ramp.
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