Lenze EVF9328-EVV004 9300 Series 22kW Vector Frequency Inverter
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Product Information
The Lenze EVF9328-EVV004 is a 22 kW vector-controlled frequency inverter belonging to the Lenze 9300 Series drive family. Designed to operate on a 3-phase input voltage between 320 V AC and 528 V AC at 45 to 65 Hz, this IP20-rated unit delivers controlled power to three-phase AC motors with an output voltage range from 0 to 400 V AC and output frequencies up to 480 Hz. At its default 8 kHz switching frequency, it yields a 47 A rated output current with a 150% overload capability for 60 seconds (70.5 A peak), while operating at a reduced 4 kHz switching frequency permits an increased output rating up to 30 kW (59 A). As a V004 specification variant, the drive is constructed without an internal RFI radio interference filter, making it suited for installations equipped with external central line filtering.
Integrating the inverter into an existing installation requires matching physical wiring and functional parameter setups. The drive incorporates an onboard CAN-based Lenze System Bus interface running at 500 kbit/s for controller and drive-to-drive synchronization, along with modular expansion slots including an Automation Interface (AIF) and a Function Interface (FIF). Commissioning a replacement unit requires restoring the parameter set stored in the original drive, which can be accomplished using the EMZ9371BC keypad module or Lenze Global Drive Control (GDC) software via EMF2173IB or EMF2177IB PC system bus adapters. A replacement inverter is rarely plug-and-run; parameters such as motor data, ramp times, fieldbus addresses, and control modes must be aligned to prevent operational mismatches. When original parameter files cannot be accessed directly from a non-responsive unit, ABC Industrial Parts can assist with parameter extraction and data transfer to prepare the spare drive for service.
System status and fault conditions are indicated directly on the front panel by dual status LEDs and monitored through internal parameter registers C0161 to C0164. A green READY LED signals operational status or active pulse inhibit when blinking and normal enabled operation when solid. A red IMP/TRIP LED indicates a warning when blinking, a tripped fault state when solid, or an internal hardware fault when fast-blinking. Troubleshooting steps include verifying mains power across incoming terminals L1, L2, and L3, inspecting motor wiring for ground leakage or short circuits, checking DC bus voltage under parameter C0006, and reviewing specific fault codes such as OC1 overcurrent or OU overvoltage. Internal board failures, such as EE0 EEPROM errors or H05 auxiliary power supply faults, indicate hardware issues that are not field-serviceable, where tested exchange units or repair through ABC Industrial Parts provide a direct path back to production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVF9328-EVV004 |
| Model / Type | EVF9328-EV V004 |
| Product Family | 9300 Series |
| Component Type | Frequency Inverter |
| Supply Voltage Range | 320 - 528 V AC |
| Supply Frequency | 45 - 65 Hz |
| Rated Power (Standard) | 22 kW |
| Rated Power (Increased Output) | 30 kW |
| Rated Output Current (8 kHz) | 47 A |
| Output Current (4 kHz) | 59 A |
| Maximum Output Current (Peak) | 70.5 A |
| Output Voltage | 0 - 400 V AC |
| Output Frequency Range | 0 - 480 Hz |
| Power Dissipation | 620 W |
| Control Method | Sensorless vector control, flux-oriented vector control, V/f control |
| Integrated RFI Filter | No (V004 Variant) |
| Default Switching Frequency | 8 kHz |
| Protection Rating | IP20 |
| Integrated Fieldbus | CANopen / Lenze System Bus |
Programming and Configuration
Parameterization and setup of the Lenze EVF9328-EVV004 inverter are executed using either the optional plug-in EMZ9371BC operating module (XT Keypad) or the Lenze Global Drive Control (GDC) PC software. The drive supports flexible control structures, including sensorless vector control, flux-oriented vector control, and standard V/f characteristic control. Essential operating parameters—such as acceleration time (C0012), deceleration time (C0013), and V/f voltage boost (C0016)—allow engineers to match the drive response precisely to the mechanical requirements of the load.
Configuration data can be managed and restored systematically across maintenance events. If configuration memory becomes invalid or uncoordinated, setting parameter C0002 to 1 restores all parameters to their factory default settings. Internal monitoring parameters provide diagnostic visibility during commissioning, including live DC bus voltage (C0006), motor current (C0054), and power stage heatsink temperature (C0061).
Communication and System Integration
The inverter comes standard with an onboard CANopen / Lenze System Bus interface accessible at terminal block X4. Operating at a transmission speed of 500 kbit/s, this network interface facilitates rapid drive-to-drive interlinking, multi-axis synchronization, and centralized master control. Network integrity on the CAN bus requires proper insertion of 120-ohm bus termination resistors at the physical ends of the line.
For integration into broader industrial networks, the unit features an Automation Interface (AIF) slot that accepts option modules such as the EMF2131IB or EMF2133IB PROFIBUS-DP interfaces, INTERBUS modules, and RS232/RS485 LECOM modules. PC communication for engineering software is established using system bus adapters such as the EMF2173IB or EMF2177IB. A Function Interface (FIF) slot is also integrated to accommodate application-specific extension hardware.
Diagnostics and Status Indication
Visual operational status is provided by two LEDs located on the front of the inverter. The green READY LED reflects general drive state and pulse inhibit, while the red IMP/TRIP LED signals warnings, trip states, or internal faults. Operational trip conditions are automatically logged in memory parameters C0161 (most recent trip) through C0164, allowing maintenance personnel to review historical fault data.
In addition to LED indications, real-time diagnostic parameters can be evaluated using the EMZ9371BC keypad or GDC software. Key runtime metrics include DC bus voltage in parameter C0006, actual output motor current in C0054, and power component temperature in C0061.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| READY / Operating state (Green LED) | Green - Blinking / Solid | Blinking green: Inverter ready for operation / pulse inhibit active. Solid green: Inverter enabled and operating normally. |
| IMP / TRIP / Fault (Red LED) | Red - Blinking / Solid / Fast Blinking | Blinking red: Warning condition active. Solid red: Fault active (TRIP state, inverter disabled/tripped). Fast blinking red: Hardware / internal fault detected. |
Replacement and Spare Part Considerations
When selecting a replacement for an existing EVF9328-EV unit, the specific V004 suffix must be verified. The V004 designator indicates that the inverter does not contain an internal RFI interference filter. If replacing a standard drive model that included internal line filtering, external central mains filters must be present in the electrical cabinet to ensure EMC compliance.
A spare unit cannot be commissioned directly out of the box without parameter synchronization. Before energizing the motor, the exact parameter dataset from the original drive must be loaded into the spare unit using either an EMZ9371BC keypad module or Global Drive Control software. Additionally, fieldbus communication modules installed in the AIF slot of the original unit must be physically transferred to the replacement drive.
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 / Instantaneous Overcurrent | Output power stage peak current limit exceeded or short circuit on output terminals. | Short circuit in motor winding or motor cable; excessive load surge; ground fault. | Check motor and motor cable for short circuits or ground faults. Verify motor parameters and acceleration times. |
| OC2 | Overcurrent during Acceleration | Inverter output current exceeded maximum overload threshold during ramp-up. | Acceleration time ramp set too short; motor locked or mechanical overload; motor size too large for drive. | Increase acceleration time (C0012). Check motor sizing and mechanical load for binding. |
| OC3 | Overcurrent during Deceleration | Inverter output current exceeded limit during deceleration ramp. | Deceleration time ramp set too short; high load inertia. | Increase deceleration time (C0013) or connect braking module/resistor. |
| OC4 | Continuous Overcurrent | Inverter output current continuously exceeded rated motor current threshold. | Permanent mechanical overload; motor blocked; incorrect V/f curve boost setting. | Check mechanical drive train for overload or jam. Verify V/f voltage boost (C0016). |
| OC5 | Earth Fault / Ground Fault | Earth fault current detected on motor output phases. | Insulation failure in motor cable or motor winding; ground leakage current. | Check insulation resistance of motor wiring and motor with a megohmmeter. |
| OU | Overvoltage DC Bus | DC bus voltage exceeded upper cutoff threshold (approx. 770 V DC / 800 V DC). | Regenerative energy from motor during braking too high; deceleration ramp too steep; missing or defective brake resistor. | Extend deceleration time (C0013), fit external brake chopper / brake resistor, or enable DC-bus voltage controller. |
| LU | Undervoltage DC Bus | DC bus voltage dropped below minimum threshold (approx. 285 V DC / 430 V DC). | Mains supply voltage drop or failure; phase failure on incoming AC mains; mains input fuse blown. | Check supply voltage, input fuses, and mains contactor. Inspect incoming power wiring. |
| OH | Heatsink Over-Temperature | Heat sink temperature exceeded maximum allowed limit (> 90°C). | Internal cooling fan defective or clogged; cabinet ventilation insufficient; ambient temperature too high; continuous overload. | Clean cooling fins and fan grill. Check cabinet cooling and heat sink fan operation. |
| OH3 | Motor Over-Temperature (I²t) | Calculated motor thermal load (I²t monitoring) exceeded maximum threshold. | Continuous motor operation at low speed with high torque; motor overloaded. | Reduce motor load or fit external motor cooling fan. Adjust motor thermal limit settings. |
| OH4 | Inverter Internal Over-Temperature | Internal cabinet / control board temperature inside drive exceeded 70°C. | Excessive enclosure temperature; internal air recirculation blocked. | Improve cooling inside control cabinet. |
| OH7 | Motor Temperature Sensor Over-Temperature | Motor PTC or thermal contact input (T1, T2) tripped. | Motor overheated; thermal switch open or high PTC resistance; open sensor wire. | Allow motor to cool down. Check motor temperature sensor connections. |
| CE0 | AIF Communication Error | Communication failure between inverter control board and Automation Interface (AIF) module. | Communication module improperly inserted; module defect; fieldbus connection fault. | Re-seat AIF fieldbus module. Check fieldbus wiring and termination resistors. |
| CE1 | System Bus (CAN) Time-Out | System bus CAN node time-out or communication loss. | CAN bus cable disconnected; wrong baud rate; missing CAN termination resistors. | Check CAN wiring on terminal X4, baud rate settings, and 120 ohm bus termination. |
| EE0 | EEPROM Memory Error | Internal EEPROM checksum error or corrupted configuration memory. | Internal EEPROM failure or corrupted flash during parameter write. | Internal hardware fault — reset parameters to factory defaults (C0002 = 1). If error persists, internal control board is defective; return unit for repair. |
| H05 | Internal Power Supply Failure | Internal 24V or gate-drive auxiliary power supply error. | Internal power supply board defect or internal short circuit. | Internal hardware failure — non-field serviceable. Return unit for repair or replace inverter. |
| H10 | Internal Heat Sink Fan Fault | Heat sink cooling fan failure or fan speed feedback error. | Cooling fan mechanically blocked or fan motor defective. | Check heat sink fan for blockage or replace cooling fan assembly. |
| LP1 | Mains Phase Failure | Missing phase on 3-phase AC input supply lines. | Unbalanced line voltage; blown line fuse on one phase; faulty input contactor. | Check AC mains supply voltages across terminals L1, L2, L3 and verify input fuses. |
| Pr | Parameter Data Invalid | Parameter data invalid or corrupted during load. | Incomplete parameter transfer or incompatible firmware file. | Reload valid parameter set or restore factory settings. |
| rE0 | Resolver Signal Fault | Feedback failure from resolver or speed encoder input. | Resolver cable disconnected, shield broken, or resolver failure. | Check resolver connection cable X7 and shield grounding. |
Frequently Asked Questions
What does the V004 suffix signify on the EVF9328-EVV004 inverter?
The V004 suffix indicates that the inverter is manufactured without an integrated RFI (radio frequency interference) filter, making it suitable for electrical installations that utilize external central line filtering.
What are the power and current ratings for the EVF9328-EVV004 drive?
At a standard 8 kHz switching frequency, the drive provides a rated power of 22 kW with a 47 A output current. At a reduced switching frequency of 4 kHz, it supports an increased output rating up to 30 kW with a 59 A current. Peak current capability reaches 70.5 A (150% overload) for up to 60 seconds.
How are parameters transferred to a replacement EVF9328-EVV004 unit?
Parameters are transferred using either the EMZ9371BC operating module (XT Keypad) or Lenze Global Drive Control (GDC) PC software via an EMF2173IB or EMF2177IB PC system bus adapter.
What communication interfaces are supported on this unit?
The inverter includes an integrated CAN System Bus interface on terminal X4 operating at 500 kbit/s. Optional fieldbus modules, including PROFIBUS-DP (EMF2131IB/EMF2133IB), INTERBUS, and LECOM RS232/RS485, can be installed into the Automation Interface (AIF) slot.
What do the green and red status LEDs on the front panel indicate?
The green READY LED indicates standby or pulse inhibit when blinking and normal operation when solid. The red IMP/TRIP LED indicates a warning when blinking, an active fault trip when solid, and an internal hardware failure when fast-blinking.
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