Lenze EVF9329-EV 9300 Vector Frequency Inverter 30kW
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Product Information
The Lenze EVF9329-EV is a 30 kW panel-mount frequency inverter from the 9300 Vector series, engineered for precise variable speed control of three-phase asynchronous motors operating on a supply voltage range of 320 V AC to 528 V AC. Delivering a continuous output current of 59 A and a maximum output current of 88.5 A, this unit supports dynamic control modes including sensorless vector control, flux-oriented vector control with encoder feedback, and standard V/f characteristic curves across an output frequency range of 0 to 600 Hz. Built with an IP20 protection rating and operating at an 8 kHz switching frequency, this specific EV variant is designed without an integrated radio frequency interference filter, allowing external EMC filtering arrangements tailored to system requirements.
For drive coordination and control integration, the EVF9329-EV includes an integrated CANbus system bus along with four digital inputs, two digital outputs, two analog inputs, and two analog outputs. Standardized modular slots accept option modules such as the EMF2102IB PROFIBUS-DP card or the EMF2133IB CANopen card for seamless master connection. Commissioning a replacement unit requires restoring parameter profiles, as the drive stores four independent parameter sets directly in internal non-volatile EEPROM memory. Configuration files are typically loaded using Lenze Global Drive Control (GDC) software or the optional EMZ9371BC operating keypad module. When existing parameter backups are unavailable, technical support from ABC Industrial Parts can assist with parameter extraction directly from donor memory circuits to transfer drive profiles to the replacement unit.
Drive operation and diagnostic events are signaled locally by status LEDs, featuring green for operational status, yellow for current or voltage limit warnings, and red for active trip states. In addition to visual indication, troubleshooting is facilitated through an internal history buffer spanning parameters C0161 to C0168, configurable READY/TRIP digital outputs, and real-time monitoring through GDC software. The unit actively monitors fault conditions including OC1 power terminal short circuits, OU DC bus overvoltage, LU line undervoltage, and OH heatsink overtemperature. Internal memory corruption signaled by EER or microcomputer hardware faults indicated by H05 represent non-serviceable control hardware issues, where installing a fully tested replacement drive or using ABC Industrial Parts for unit repair provides a quick path back to active production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVF9329-EV |
| Model / Type | 9300 Vector |
| Component Type | Frequency Inverter |
| Rated Power | 30 kW |
| Supply Voltage Range | 320 - 528 V AC |
| Continuous Output Current | 59 A |
| Maximum Output Current | 88.5 A |
| Output Frequency Range | 0 - 600 Hz |
| Switching Frequency | 8 kHz |
| Control Method | Sensorless vector control, flux-oriented vector control with feedback, V/f characteristic control |
| Protection Rating | IP20 |
| Digital Inputs | 4 |
| Digital Outputs | 2 |
| Analog Inputs | 2 |
| Analog Outputs | 2 |
Programming and Configuration
The Lenze EVF9329-EV inverter relies on non-volatile EEPROM memory to store parameters, operational thresholds, and motor characteristics without needing battery backup. Software configuration is performed using Lenze Global Drive Control (GDC) software connected through a communication interface, or locally via the pluggable EMZ9371BC LCD keypad module. Up to four separate parameter sets are maintained onboard, enabling automated selection between distinct operational recipes or multi-product operating modes.
During initial setup or drive commissioning, specific parameters dictate motor protection limits and application dynamics, such as setting motor thermal model parameters in C0075 and C0076. Parameter C0002 allows technicians to restore factory default settings when resetting corrupted parameter sets or clearing previous application profiles. Uploading complete parameter backups via GDC ensures exact replication of acceleration ramps, torque limits, and terminal assignments when replacing equipment.
Communication and System Integration
Primary system integration on the EVF9329-EV is managed through the built-in CANbus system bus interface, facilitating fast drive-to-drive networking and coordinated multi-axis movement. Discrete I/O interface connections consist of four digital inputs, two digital outputs, two analog inputs, and two analog outputs, allowing direct connection to plant sensors, run enable commands, and external status monitoring circuits.
Network connectivity can be expanded using standardized option slots that accept dedicated fieldbus communication cards. Supported fieldbus options include the EMF2102IB PROFIBUS-DP module, EMF2133IB CANopen module, INTERBUS, and LECOM RS232/RS485 modules. Correct network termination using 120-Ohm resistors across the CANbus bus line is required to ensure signal integrity across the fieldbus network.
Diagnostics and Status Indication
Visual status monitoring on the EVF9329-EV is provided by front-panel status LEDs. The green Operation LED remains illuminated when the controller enable signal is active during normal operation. The yellow Warning LED lights continuously or flashes when current or voltage limiting functions are active. A solid red TRIP LED illuminates to signal an active fault condition and complete drive shutdown.
Comprehensive diagnostic routines are accessible through diagnostic parameters C0161 to C0168, which retain a history buffer of recent fault occurrences. Digital outputs can be assigned to convey READY or TRIP status to master controllers, while real-time operational parameters can be monitored via the GDC software diagnostic window or the EMZ9371BC LCD keypad.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| TRIP | Red - Solid | Fault indication / Drive trip active |
| Operation | Green - Solid | Controller enable status / Normal operation |
| Warning | Yellow - Solid / Flashing | Warning state / Current or voltage limiting function active |
Replacement and Spare Part Considerations
When selecting a replacement frequency inverter, verify the full part number EVF9329-EV. The EV designation identifies that this model does not feature an integrated RFI filter. If replacing a unit in an installation requiring noise suppression compliance, confirm whether external EMC line filters are already installed in the cabinet line supply.
A replacement EVF9329-EV cannot operate straight out of the box without parameter configuration. All motor parameters, I/O terminal assignments, and fieldbus node settings must be uploaded to the replacement drive. This can be achieved by writing a saved parameter file via Global Drive Control (GDC) software or plugging in the EMZ9371BC keypad module containing the original drive profile.
Ensure that optional communication modules, such as the EMF2102IB PROFIBUS or EMF2133IB CANopen cards, are moved from the original unit and securely seated into the option slot of the replacement drive. Inspect all power terminal connections (3-phase 320–528 V AC input and U, V, W output) and motor temperature connections on terminal X8 before powering on the unit.
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 power terminals U, V, W. | Short circuit in motor cable; motor winding breakdown; earth fault in motor circuit; excessive capacitive line charging currents. | Check motor cable and motor windings for insulation fault or short circuit; check motor cable length and cross-section. |
| OC5 | I*t Inverter Overload | Continuous excessive overload exceeds thermal capacity of drive power semiconductors. | Drive undersized for load duty cycle; mechanical stall or friction; acceleration ramp too steep. | Check motor sizing; check mechanical drive load; increase acceleration time. |
| OC6 | Motor Overload | Calculated motor I*t thermal overload reached. | Motor operated continuously above rated current at low speeds; excessive shaft load. | Check motor load and current limits; check thermal motor model parameters in C0075/C0076. |
| OU | DC Bus Overvoltage | DC bus voltage exceeds maximum upper threshold level. | Braking energy regenerated into DC bus during deceleration; deceleration time too short; brake chopper or brake resistor defective/missing. | Increase deceleration time; install external brake chopper/braking resistor; check line voltage. |
| LU | DC Bus Undervoltage | DC bus voltage dropped below minimum operating limit. | Mains supply failure; phase loss; input line voltage too low; transient power drop. | Check line supply voltage and input fuses; check input wiring. |
| OH | Heatsink Overtemperature | Heatsink temperature exceeds maximum permitted limit. | Cooling fan defective or blocked; ambient temperature too high; insufficient clearance around unit airflow path. | Clean heatsink cooling fins; check internal fan operation; verify enclosure ventilation. |
| OH4 | Motor Overtemperature | Motor temperature sensor connected to terminal X8 triggered fault. | Motor overheated; PTC sensor activated; sensor cable broken. | Allow motor to cool; inspect motor cooling fan; check motor sensor cable connection at terminal X8. |
| OH7 | Interior Overtemperature | Internal temperature inside inverter housing exceeds safety limit. | Ambient temperature in electrical cabinet too high; cabinet cooling failed. | Improve enclosure cooling; check cabinet ventilation system. |
| CE0 | CAN Bus Communication Fault | Communication failure on integrated CANbus system bus interface. | Bus wiring fault; missing terminating resistors; bus traffic overload; incorrect node address. | Check CANbus wiring, shielding, and terminating resistors (120 Ohm); check baud rate settings. |
| CE1 | Automation Module Error 1 | Communication interrupted between inverter and optional fieldbus module. | Fieldbus module loose or defective; master controller communication lost; improper configuration. | Check fieldbus cable connections, PLC status, and seating of option module in slot. |
| EER | EEPROM Memory Error | Checksum fault or corruption detected in non-volatile parameter memory. | Internal hardware failure; power supply interruption during parameter save. | Reload factory default settings (C0002) and reconfigure unit; if fault persists, unit requires repair or replacement — internal hardware fault. |
| H05 | Internal Hardware Fault | Fatal internal error in power section or control board microcomputer. | Internal hardware failure, control board damage, or corrupted system firmware. | Power cycle unit. If fault re-occurs, internal hardware fault — replace or send unit for service repair. |
| LP1 | Mains Phase Failure | One of the incoming AC supply phases is missing. | Blown line fuse; loose wire connection at supply terminals U1/V1/W1. | Check incoming line fuses and line voltage symmetry across all three supply phases. |
| NMAX | Maximum Speed Exceeded | Actual motor speed exceeded maximum configured speed limit. | Speed controller parameters improperly tuned; overhauling load driving motor shaft. | Check gain settings of speed controller; check application mechanical braking. |
Frequently Asked Questions
How are parameters transferred to a replacement Lenze EVF9329-EV drive?
Parameters are transferred by downloading a saved configuration file using Lenze Global Drive Control (GDC) software over a serial link, or by copying parameter sets directly using the removable EMZ9371BC operating keypad module.
Does the Lenze EVF9329-EV include an internal RFI interference filter?
No, the EVF9329-EV model is designed without an integrated radio frequency interference filter. External line filtering must be provided if necessary to meet local EMC regulations.
What does a solid red TRIP LED mean on the EVF9329-EV?
A solid red TRIP LED indicates an active fault condition that has shut down drive output power. Specific fault codes can be identified using the diagnostic history buffer in parameters C0161 to C0168 or via the EMZ9371BC keypad LCD display.
How should an EER memory error or H05 fault code be resolved?
An EER fault can initially be cleared by reloading factory default parameters using parameter C0002. If EER persists, or if an H05 error occurs, an unserviceable internal hardware fault exists that requires drive repair or unit replacement.
What electrical supply ratings are required for the EVF9329-EV?
The inverter operates on a 3-phase AC input voltage range from 320 V AC to 528 V AC, providing 30 kW rated power, 59 A continuous output current, and up to 88.5 A maximum output current.
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