Lenze EVF9329-EH 9300 Vector Frequency Inverter 45kW 89A
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Product Information
The Lenze EVF9329-EH is a 45 kW vector-controlled frequency inverter belonging to the Lenze 9300 Vector series. Engineered for demanding motor management in industrial automation, this 3-phase drive operates on a supply voltage range of 320 V AC to 528 V AC at 400/480 V and provides a continuous output current of 89 A. Housed in an IP20 panel-mount enclosure for control cabinet installation, the unit delivers precise motor speed and torque regulation across an output frequency range of 0 to 480 Hz with an 8 kHz switching frequency. The drive supports V/f characteristic control, sensorless vector control, and closed-loop vector control utilizing feedback from an encoder input.
Integrating the EVF9329-EH into an automated system relies on a versatile array of control terminals and modular expansion interfaces. Physical control connectivity includes 8 digital inputs, 4 digital outputs, 2 analog inputs, 2 analog outputs, and an encoder feedback terminal at X6. An onboard CAN system bus operating up to 500 kbit/s enables rapid communication and synchronization between multiple drives without supplementary hardware, while the modular Automation Interface (AIF) slot accepts optional fieldbus cards such as PROFIBUS-DP or CANopen modules. Commissioning a replacement unit requires transferring application parameter sets, as configuration is retained within the inverter rather than the host PLC. Parameters can be backed up and restored via Lenze Global Drive Control (GDC) PC software or cloned using a plug-in Keypad XT module. The drive's internal non-volatile EEPROM stores up to four independent parameter sets, and ABC Industrial Parts can support maintenance teams with verified spare units to minimize operational downtime.
Diagnostic monitoring for the EVF9329-EH is available through hardware status indications and dedicated parameter registers. A front-panel status LED displays operational state, flashing green when the drive is ready or operational and switching to blinking or solid red when a trip condition occurs. Detailed diagnostic data—including fault history in parameter C0168, software version in C0183, motor current in C0054, and motor speed in C0052—can be accessed using the Keypad XT or GDC monitoring windows. First-line troubleshooting for reported trips should include checking line voltages on terminals L1, L2, and L3, inspecting motor cables for short circuits, checking encoder connections on terminal X6, and verifying 120-ohm termination on the CAN bus. Internal memory corruption or unresolvable control hardware faults, indicated by codes like EER or H05, are not field-serviceable; replacing the drive or opting for a tested unit through ABC Industrial Parts provides a rapid path back to production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVF9329-EH |
| Model / Type | 9300 Vector Frequency Inverter |
| Component Type | Frequency Inverter |
| Product Family | 9300 |
| Rated Power | 45 kW |
| Rated Output Current | 89 A |
| Supply Voltage Range | 320 to 528 V AC (3-phase 400/480 V) |
| Output Frequency Range | 0 to 480 Hz |
| Switching Frequency | 8 kHz |
| Control Method | V/f, Sensorless Vector, Closed-Loop Vector |
| Digital Inputs / Outputs | 8 Inputs / 4 Outputs |
| Analog Inputs / Outputs | 2 Inputs / 2 Outputs |
| Onboard Fieldbus | CAN System Bus (up to 500 kbit/s) |
| Expansion Slot | Automation Interface (AIF) Slot |
| Protection Rating | IP20 |
| Mounting Type | Control Cabinet / Panel |
Programming and Configuration
Configuration of the Lenze EVF9329-EH frequency inverter is performed through Lenze Global Drive Control (GDC) PC software or directly via a plug-in Keypad XT module (EMF2102IB). Parameter settings govern all motor operating data, speed control loops, acceleration/deceleration ramps, and I/O assignments. The drive's internal non-volatile EEPROM memory holds up to four independent parameter sets, enabling multi-profile configuration storage on a single unit.
When commissioning a replacement inverter, parameter configurations must be loaded into the replacement drive to match machine settings. Using GDC software or the Keypad XT, parameter sets can be read from a backup file or donor unit and transferred directly into memory. If parameter resetting is necessary, setting parameter C0002 to 1 restores the drive to factory default settings. Key operational variables can be monitored live during setup, including actual motor current (C0054), motor speed (C0052), and drive software version (C0183).
Communication and System Integration
The EVF9329-EH provides built-in system bus communication through an integrated CAN interface capable of data transmission rates up to 500 kbit/s. Direct wiring on terminals X4 and X5 facilitates multi-drive intercommunication and cross-synchronization without external bus modules. Proper network topology requires installing 120-ohm termination resistors across both physical ends of the CAN system bus line.
Higher-level fieldbus integration is accomplished via the drive's Automation Interface (AIF) slot. This expansion slot supports modular interface adapters, including PROFIBUS-DP modules (EMF2133IB / EMF2131IB), CANopen modules (EMF2171IB / EMF2172IB), LECOM modules, and INTERBUS units. Equipping the appropriate AIF card enables seamless exchange of cyclic control words, speed setpoints, and trip status flags with host programmable logic controllers.
Diagnostics and Status Indication
Diagnostic monitoring on the Lenze EVF9329-EH combines hardware visual status indication with software parameter tracking. Front-panel LEDs provide immediate visual feedback regarding drive readiness and trip conditions, while parameter registers allow detailed monitoring of operating states.
In-depth fault analysis is supported by parameter C0168, which serves as a history buffer and fault memory for active and historical trip events. Technicians can read C0168 via the Keypad XT display status menu or through the GDC diagnostic monitoring window. Additional parameters provide real-time runtime feedback, such as motor current (C0054), motor speed (C0052), and software version (C0183).
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| DRIVE READY / DRIVE ERROR | Green / Red - Solid / Flashing | Green flashing = Drive operational / ready; Red blinking / solid = Fault condition (TRIP active); Both off = No control voltage |
Replacement and Spare Part Considerations
Replacing an EVF9329-EH frequency inverter in an automated control cabinet requires matching electrical ratings, physical slot space, and software parameters. The donor or replacement unit must match the 45 kW power rating and 89 A continuous output current to prevent thermal overload or line fuse tripping during heavy acceleration cycles.
Before putting a replacement drive into service, transfer any installed Automation Interface (AIF) module—such as a PROFIBUS or CANopen interface—from the original unit to the replacement drive's AIF slot. Ensure the module is firmly seated to prevent AIF communication errors (CE0). Restore application parameter sets using Global Drive Control software or by transferring parameter files via the Keypad XT module.
Prior to powering up the replacement inverter, verify wiring integrity across key terminal blocks. Confirm 3-phase AC input supply connections on L1, L2, and L3, check encoder feedback wiring at terminal X6, and verify motor thermal sensor leads at terminals T1 and T2. If the drive communicates via the CAN system bus on terminals X4/X5, verify that 120-ohm termination resistors are correctly placed at both ends of the bus.
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 or ground fault at output terminals | Short circuit in motor cable or motor; ground fault; acceleration time too short | Check motor cable for short circuit or ground connection; check motor insulation; extend acceleration time C0012. |
| OC5 | Overload / Overcurrent during Acceleration | Output current exceeded maximum limit during acceleration | Excessive motor load; acceleration time too fast; improper motor parameter setting | Increase acceleration time C0012; check motor load and mechanical binding; verify motor data settings. |
| OU | Overvoltage in DC Bus | DC bus voltage exceeded upper limit threshold | Regenerative energy from motor during deceleration; deceleration time too short; brake resistor missing or open circuit | Extend deceleration time C0013; connect dynamic braking module / brake resistor; verify mains voltage. |
| LU | Undervoltage in DC Bus | DC bus voltage fell below lower limit threshold | Mains supply failure; phase loss; input supply voltage too low | Check mains voltage input terminals L1, L2, L3; check fuses and power wiring. |
| OH | Heatsink Overtemperature | Inverter heatsink temperature exceeded maximum limit | Ambient temperature too high; cabinet fan failure; inadequate ventilation space or clogged heatsink fins | Clean heatsink fins; ensure cabinet cooling and airflow; reduce ambient temperature. |
| OH4 | Motor Overtemperature | Motor temperature sensor trip (PTC or thermal contact at terminals T1, T2) | Motor overloaded; motor cooling fan failure; incorrect PTC connection | Allow motor to cool; check mechanical load; verify motor thermal protection wiring at T1/T2. |
| LP1 | Mains Phase Failure | Loss of one or more incoming AC supply phases | Unbalanced line voltage; blown line fuse; loose line conductor connection | Check incoming line voltages under load; inspect fuses and terminal tightener. |
| P12 | Encoder Fault | Loss of speed feedback signal from encoder on terminal X6 | Encoder cable broken or disconnected; incorrect encoder supply voltage setting; faulty encoder | Check encoder cable and connectors at X6; verify encoder supply setting in parameters; test encoder function. |
| EER | EEPROM Error | Internal non-volatile memory read/write error | Internal hardware failure or memory corruption due to severe power glitch | Internal hardware fault — reset parameters to factory default (C0002 = 1). If fault persists, return unit for repair. |
| H05 | Internal Hardware Error | Inverter control board internal hardware self-test failure | Failed internal board hardware or corrupted internal firmware state | Internal hardware fault — perform power cycle. If fault persists, return unit for repair or replace inverter. |
| CE0 | AIF Communication Error | Communication failure between inverter and AIF fieldbus module | AIF module loose, improperly seated, or missing; fieldbus cable break | Check seating of module in AIF slot; inspect fieldbus cable and bus termination. |
| CE1 | System Bus (CAN) Communication Error | Communication failure on integrated CAN system bus | CAN bus wire short/open circuit; incorrect baud rate setting; missing termination resistors (120 Ohm) | Check CAN wiring on terminals X4/X5; verify termination resistors at both line ends; verify baud rate setting. |
Frequently Asked Questions
How are parameter settings transferred to a replacement Lenze EVF9329-EH drive?
Parameter settings are transferred using Lenze Global Drive Control (GDC) PC software via a PC interface cable or by copying parameter sets directly between units using a plug-in Keypad XT module (EMF2102IB).
What motor control methods does the EVF9329-EH inverter support?
The EVF9329-EH supports V/f characteristic control, sensorless vector control, and closed-loop vector control using speed feedback from an encoder connected to terminal X6.
Which fieldbus communication modules can be used with the EVF9329-EH?
The inverter's Automation Interface (AIF) slot supports fieldbus modules including PROFIBUS-DP (EMF2133IB / EMF2131IB), CANopen (EMF2171IB / EMF2172IB), LECOM, and INTERBUS interfaces.
What does a red status LED indicate on the front panel of the EVF9329-EH?
A red blinking or solid LED indicates an active fault trip condition. Specific fault codes can be reviewed in history buffer parameter C0168 via the Keypad XT or GDC software.
How do you reset the EVF9329-EH parameters to factory defaults?
Set parameter C0002 to 1 using the Keypad XT or GDC software to restore all inverter parameters to factory default settings.
What causes an OC1 fault code on the EVF9329-EH inverter?
An OC1 fault indicates a short circuit or ground fault at the output terminals. Recommended checks include testing motor and cable insulation, checking for ground faults, and extending acceleration time parameter C0012.
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