Lenze EVF9322-EVV004 9300 Vector Frequency Inverter 0.75kW
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Product Information
The Lenze EVF9322-EVV004 is a 0.75 kW frequency inverter from the 9300 Vector series, engineered for speed and torque regulation of three-phase AC asynchronous motors. Operating on a 400 V AC three-phase supply within an input range of 320 to 528 V AC, this compact drive delivers a continuous output current of 2.5 A and supports a 150% overload capability for up to 60 seconds. The unit accommodates sensorless vector control, closed-loop flux vector control, and programmable V/f characteristics to suit demanding acceleration, dynamic braking, and continuous processing applications. Designated as a V004 specification, this inverter is built without an integrated radio interference suppression filter, enabling custom external EMC filter configurations based on cabinet design requirements.
Connecting and commissioning the Lenze EVF9322-EVV004 requires aligning control parameters and option card configurations to match the original installation. Communication is established via an onboard CANopen system bus integrated directly into terminal connections, while an Automation Interface slot supports plug-in fieldbus modules such as the EMF2133IB PROFIBUS-DP adapter, DeviceNet, INTERBUS, or LECOM interfaces. Local parameterization is performed using the EMZ9371BC Keypad XT module, while full project management is handled through Lenze Global Drive Control software. The drive contains four internal parameter sets, allowing multi-product machine configurations. When replacing an existing unit, parameter sets must be backed up from the original drive memory and transferred to the spare, or extracted prior to swap-out with assistance from ABC Industrial Parts.
Diagnostic information is provided through three front-panel LEDs indicating drive readiness, error status, and system bus communication state. Detailed fault diagnosis is accessible via the EMZ9371BC keypad display or the Global Drive Control software diagnostic monitor, which records the last four fault events in parameters C0161 through C0164. First-line troubleshooting should include verifying the 400 V AC mains supply, inspecting motor power cabling and earthing, and verifying 120 Ohm termination resistors on the CAN bus. Hardware or internal control board failures, indicated by fault codes such as H05, cannot be repaired in the field; sourcing a tested exchange drive or sending the faulty unit to ABC Industrial Parts for component-level repair offers a fast route to restoring production.
Technical Specifications
| Rated Power | 0.75 kW |
| Supply Voltage | 400 V AC |
| Supply Voltage Range | 320 - 528 V AC |
| Rated Input Current | 2.3 A |
| Continuous Output Current | 2.5 A |
| Maximum Output Current | 3.75 A |
| Output Frequency Range | 0 - 600 Hz |
| Switching Frequency | 8 kHz |
| Power Loss | 45 W |
| Control Method | Sensorless Vector / Flux Vector / V/f Characteristic |
| Digital Inputs | 5 |
| Digital Outputs | 2 |
| Analog Inputs | 2 |
| Analog Outputs | 2 |
| Relay Outputs | 1 |
Programming and Configuration
Drive parameterization and configuration for the Lenze EVF9322-EVV004 are conducted using Lenze Global Drive Control (GDC) software or directly via the EMZ9371BC Keypad XT module. The drive architecture supports storing up to four complete parameter sets onboard, allowing machinery to switch between distinct operating profiles without reloading external files. Key motor control settings, such as acceleration time parameter C0012 and deceleration time parameter C0013, allow precise tuning of acceleration and dynamic braking behavior.
During drive replacement or commissioning, parameter integrity is critical. A parameter fault condition (code PI) occurs if parameter data becomes corrupted or interrupted during power-up or transfer. In such instances, restoring the drive to factory default settings via parameter C0002=1 allows a clean baseline configuration before reloading saved drive profiles from Global Drive Control software or keypad memory.
Communication and System Integration
The EVF9322-EVV004 features an onboard CANopen system bus interface directly on its terminal strip, facilitating high-speed drive-to-drive synchronisation and data exchange without additional hardware. The system bus requires proper 120 Ohm termination resistors at both ends of the network line, correct shield grounding, and aligned baud rate settings across all connected nodes to prevent communication interrupts.
For broader fieldbus integration, the integrated Automation Interface (AIF) slot accepts modular communication adapters, including the EMF2133IB PROFIBUS-DP module, as well as DeviceNet, INTERBUS, and LECOM RS232/RS485 interface cards. The physical terminal arrangement includes five digital inputs, two digital outputs, two bipolar analog inputs, two analog outputs, and a hardware relay output for hardware fault signaling and safety interlocking.
Diagnostics and Status Indication
System state monitoring is accomplished through front-panel status LEDs and dedicated software diagnostic channels. Operational state, active fault state, and CAN bus activity are immediately visible via the DRIVE READY, DRIVE ERROR, and BUS STATUS LED indicators. Hardware TRIP conditions automatically toggle the onboard fault relay output to alert main controller safety circuits.
Advanced diagnostic feedback is available through the EMZ9371BC keypad or Global Drive Control software monitor. The inverter maintains a parameter history buffer spanning holding locations C0161 to C0164, which stores the four most recent fault occurrences for post-fault analysis and preventive maintenance.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| DRIVE READY | Green - Solid / Flashing | Indicates active operation status or operational readiness |
| DRIVE ERROR | Red - Solid / Flashing | Indicates drive fault condition or active TRIP state |
| BUS STATUS | Yellow / Green - Solid / Flashing | Indicates active system bus (CAN) communication status |
Replacement and Spare Part Considerations
When swapping out a failed drive, ensure the replacement unit matches the exact EVF9322-EVV004 designation. The V004 specification signifies an unfiltered drive unit; installing a unit with integrated filtering in a machine designed for external filtering may affect system grounding and EMC performance. Confirm that physical terminal wiring, brake chopper connections, and external braking resistors are reconnected securely.
Prior to powering up the spare unit, transfer the four parameter sets and fieldbus configuration settings from the original drive using Global Drive Control software or an EMZ9371BC keypad module. If fieldbus options such as the EMF2133IB PROFIBUS-DP card are present, remove the module from the host slot of the defective drive and insert it firmly into the replacement unit's Automation Interface slot. For obsolete installations transitioning to current drive technology, the Lenze i550 cabinet frequency inverter series represents the designated modern replacement path.
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 at the motor output terminals | Short circuit in motor winding or cable; excessive acceleration rate; motor cable length exceeded | Check motor cable and motor for short circuit/earth fault; increase acceleration time parameter C0012 |
| OC2 | Earth Fault | Earth fault / ground fault detected at output | Ground contact in motor winding or cable; capacitive leakage current too high | Check motor cable and motor insulation to earth; check motor cable length |
| OC5 | I2t Overload Motor | Inverter thermal overload threshold reached | Continuous overload current; motor undersized; operation below nominal speed without forced cooling | Reduce motor load; check duty cycle; adjust I2t monitoring settings |
| OU | Overvoltage DC Bus | DC bus voltage exceeds maximum limit | Regenerative energy from motor during deceleration too high; deceleration ramp too short; braking chopper not connected or brake resistor failed | Increase deceleration ramp time parameter C0013; connect brake chopper/resistor; check mains voltage |
| LU | Undervoltage DC Bus | DC bus voltage dropped below minimum threshold | Mains supply failure; supply phase missing; mains voltage too low | Check mains voltage input; check input fuses and line reactor |
| OH | Heatsink Overtemperature | Heatsink temperature exceeds maximum allowable threshold | Inadequate cooling; ambient temperature too high; cooling fan clogged or defective | Clean heatsink cooling fins; check fan operation; ensure proper cabinet ventilation |
| OH4 | Motor Overtemperature | Motor temperature sensor (PTC/TK) triggered | Motor thermal overload; motor fan defective; PTC wire broken | Allow motor to cool; reduce drive load; check PTC/TK connection on terminals T1/T2 |
| OH7 | Inside Temperature High | Internal temperature inside inverter enclosure too high | Control cabinet temperature too high; internal fan failed | Improve cabinet cooling; check internal drive fan |
| LP1 | Motor Phase Failure | One or more motor output phases interrupted | Motor cable disconnected; loose motor terminal; contactor opened on output side | Check motor power wiring, terminal connections, and contactors |
| CE0 | CAN Communication Error | System bus (CAN) communication fault | CAN bus line interrupted; bus termination missing; improper baud rate setting | Check CAN wiring, shield grounding, termination resistors (120 Ohm), and baud rate configuration |
| CE1 | AIF Communication Error | Communication failure between inverter and AIF plug-in module | AIF module disconnected; defective module interface; module inserted improperly | Reseat module in AIF slot; check module connection and status LEDs |
| EEr | External Fault | External fault condition triggered via digital input | Signal at digital input configured as External Fault set to active state | Check external field devices connected to configured TRIP input |
| H05 | Internal Hardware Fault | Internal control board or power section failure | Internal electronic defect; hardware failure on power circuit board | Internal hardware fault — power cycle unit; if persistent, replace unit or contact Lenze service |
| PI | Parameter Fault | Parameter data invalid or corrupted during transfer/power up | Power supply failure during parameter save operation; incompatible parameter set loaded | Reload factory default parameters (C0002=1) and re-commission drive |
| NMAX | Speed Limit Exceeded | Motor actual speed exceeded maximum speed setting C0011 by 1.25 times | Speed controller unstable; field weakening setting incorrect; overhauling load | Check speed controller gains, encoder feedback, and drive braking configuration |
Frequently Asked Questions
What software is used to configure the Lenze EVF9322-EVV004 inverter?
The inverter is configured using Lenze Global Drive Control (GDC) software or locally via the optional EMZ9371BC Keypad XT module.
What does the V004 suffix indicate on the EVF9322-EVV004 model?
The V004 suffix specifies that the inverter is built without an internal radio interference suppression filter, allowing custom external EMC filter integration in control cabinets.
How do I clear a parameter fault (PI) on the Lenze EVF9322-EVV004?
A PI fault indicates corrupted or invalid parameter data. To resolve it, reload factory default parameters by setting parameter C0002 to 1, then transfer a known valid parameter set using GDC software or the keypad.
What does the H05 fault code mean on this drive?
Fault code H05 indicates an internal hardware fault within the control board or power circuit section. This fault cannot be cleared by parameter changes and typically requires power cycling or replacing the unit.
Can the EVF9322-EVV004 connect to a PROFIBUS network?
Yes, PROFIBUS-DP communication is supported by installing an optional EMF2133IB communication module into the drive's Automation Interface (AIF) slot.
How many fault events are recorded in the drive's memory buffer?
The drive records the last four fault events in parameter holding locations C0161 through C0164, accessible via the keypad display or GDC software.
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