Lenze EVS9322-ESV004 0.75kW 9300 Series Servo Inverter
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Product Information
The Lenze EVS9322-ESV004 is a 0.75 kW servo inverter from the Lenze 9300 Series, identified by model designation EVS9322-ES V004. Designed for dynamic motion control, this drive utilizes field-oriented vector control to regulate both synchronous and asynchronous servo motors with high precision. It operates across a 3-phase AC supply voltage ranging from 320 V AC to 528 V AC, providing a continuous output current of 2.5 A and a peak overload capacity of 3.75 A for up to 60 seconds. Featuring an IP20 protection rating, the unit is engineered for installation inside control cabinets operating at an 8 kHz switching frequency across an output frequency spectrum of 0 Hz to 600 Hz.
Interfacing with external control systems and feedback devices is made possible through onboard terminal connections and pluggable expansion slots. Motor feedback is routed through a 9-pin Sub-D connector at terminal X7 for resolver evaluation, complemented by master frequency and incremental encoder input and output options. For network integration, an integrated CANbus interface supports system-bus communication up to 500 kbit/s, while an Automation Interface slot accommodates optional fieldbus cards such as the EMF2133IB PROFIBUS-DP, EMF2111IB INTERBUS, or LECOM communication modules. Commissioning a replacement unit requires configuring parameters via Lenze Global Drive Control (GDC) software version 4.0 or higher, EASY Starter software, or an EMZ9371BC pluggable diagnostic keypad. Because parameters are saved across four switchable internal EEPROM memory sets, a replacement unit must have its parameter set uploaded or transferred prior to operation. ABC Industrial Parts can assist in sourcing and preparing spare units to ensure seamless parameter migration.
System status and operational readiness are monitored via front-panel status LEDs and internal diagnostic memory. A green LED indicates ready or normal operating state, while a red LED signals active warnings or a TRIP fault state that disables drive output. Detailed fault diagnostics can be evaluated using TRIP memory inspection registers C0161 through C0164 or fieldbus communication registers. Common trip events range from overvoltage (OU), undervoltage (LU), and overcurrent (OC1) to feedback loss (Sd2) and communication errors (CE0, CE1). When internal hardware faults like code H05 or unrecoverable memory errors (EER) occur, internal repair or unit replacement is necessary, as component-level board faults cannot be serviced in the field. In such instances, ABC Industrial Parts provides tested exchange units and repair options to restore machine operation.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVS9322-ESV004 |
| Model / Type | EVS9322-ES V004 |
| Product Family | 9300 Series |
| Component Type | Servo Inverter |
| Rated Power Output | 0.75 kW |
| Supply Voltage Range | 320 V AC to 528 V AC |
| Continuous Output Current | 2.5 A |
| Peak Output Current | 3.75 A |
| Output Frequency Range | 0 Hz to 600 Hz |
| Switching Frequency | 8 kHz |
| Ingress Protection Rating | IP20 |
| Digital Inputs | 4 |
| Digital Outputs | 2 |
| Analog Inputs | 2 |
| Analog Outputs | 2 |
Programming and Configuration
The Lenze EVS9322-ESV004 servo controller relies on structured software tools and non-volatile memory management for drive setup, tuning, and parameter transfer. Commissioning and engineering tasks are primarily executed through Lenze Global Drive Control (GDC) software version 4.0 or above, or using Lenze EASY Starter software. For local parameter adjustments without a PC, the optional EMZ9371BC pluggable keypad module can be connected directly to the Automation Interface slot.
Internal parameter management is powered by an onboard EEPROM capable of storing up to four independent parameter sets. This capability allows machines to hold multi-recipe configurations locally on the drive. When replacing a damaged controller, the parameter file must be downloaded from a backed-up GDC project file or transferred from the original drive using the diagnostic keypad or communication software to ensure identical operational behavior.
Communication and System Integration
System integration with the Lenze EVS9322-ESV004 is accomplished through both built-in communication interfaces and modular expansion options. The controller features an integrated CANbus interface supporting CANopen protocols at transmission speeds up to 500 kbit/s. This enables direct peer-to-peer network connections, master-slave frequency synchronization, and electronic gearing applications across multiple drives without requiring additional bus hardware.
For broader fieldbus connectivity, the unit includes an Automation Interface (AIF) slot on the front panel. This slot accommodates plug-in communication modules such as the EMF2133IB for PROFIBUS-DP integration, the EMF2111IB for INTERBUS networks, or LECOM serial interface modules. Additionally, the drive provides integrated control wiring terminals consisting of 4 digital inputs, 2 digital outputs, 2 analog inputs, and 2 analog outputs for direct PLC signal interfacing.
Diagnostics and Status Indication
The Lenze 9300 series servo inverter provides comprehensive visual and software-based diagnostic capabilities to simplify maintenance and fault localization. The front panel features two primary LED indicators for immediate status determination. A green LED indicates controller readiness and normal running state, while a red LED illuminates to signal an active warning or a TRIP state that safely disables the drive's power stage.
For deeper troubleshooting, the controller maintains an internal TRIP memory accessible through diagnostic registers C0161 to C0164. These registers record historical fault events, allowing technicians to inspect error codes via the GDC engineering software, EASY Starter, an attached EMZ9371BC keypad, or fieldbus diagnostic registers.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Ready / Green LED | Green - Blinking / Solid | Blinking green: Controller ready / operation enabled; Solid green: Drive operating normally |
| Fault / Red LED | Red - Blinking / Solid | Blinking red: Warning condition active; Solid red: TRIP / Fault state active (drive disabled) |
Replacement and Spare Part Considerations
When replacing an existing Lenze EVS9322-ESV004 servo inverter, matching physical specifications and power ratings is essential. The replacement drive must match the 0.75 kW power rating, 2.5 A continuous output current, and 320V to 528V AC 3-phase supply voltage profile. Ensure the IP20 enclosure rating and cooling requirements inside the electrical cabinet are maintained.
Before putting a replacement unit into service, verify that all external communication modules installed in the Automation Interface slot—such as PROFIBUS-DP or INTERBUS modules—are transferred from the old drive to the new unit. The replacement drive will not operate identically out of the box; parameter sets stored in the EEPROM must be transferred using GDC software or the EMZ9371BC keypad, and fieldbus node addresses and baud rates must be verified prior to restarting production.
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 ground fault detected on motor terminals U, V, W. | Short circuit in motor cable, motor winding fault, ground fault, or damaged power stage. | Check motor and power wiring for insulation failure; test motor windings. If problem persists with motor disconnected, internal power stage failure requires unit repair. |
| OC5 | I2t Overload | Drive dynamic overload threshold exceeded (continuous current too high). | Excessive mechanical load, motor undersized, duty cycle too high. | Check mechanical drive train for binding; reduce load or adjust acceleration/deceleration ramps. |
| OU | Overvoltage in DC Bus | DC bus voltage exceeded maximum allowable threshold. | Excessive regenerative energy during deceleration, brake chopper resistor missing or damaged, supply mains voltage too high. | Extend deceleration time, check braking resistor connection and resistance value, measure mains supply voltage. |
| LU | Undervoltage in DC Bus | DC bus voltage dropped below minimum threshold. | Main power supply failure, phase loss, supply line impedance too high. | Check input voltage supply, fuses, line contactor, and power cabling. |
| OH | Heatsink Overtemperature | Drive heatsink temperature exceeded maximum limit. | Inadequate control cabinet cooling, fan failure, clogged ventilation slots, ambient temperature too high. | Clean heatsink cooling fins, verify cabinet ventilation and internal fan operation, lower ambient temperature. |
| OH4 | Motor Overtemperature | Motor temperature sensor (PTC/Klixon) triggered overtemperature error. | Motor thermal overload, cooling fan failure on motor, thermistor cable broken or disconnected. | Allow motor to cool, verify thermal sensor cable wiring, check motor loading and ventilation. |
| OH7 | Interior Overtemperature | Internal ambient temperature inside the controller housing exceeded limit. | Excessive cabinet temperature, clogged internal fan filter. | Improve cooling inside control cabinet. |
| CE0 | AIF Communication Error | Communication failure between controller and module plugged into AIF slot. | AIF module defective, improper seating of module, fieldbus connection failure. | Re-seat communication module, check fieldbus cable connection and terminating resistors. |
| CE1 | CANbus Communication Error 1 | Receive buffer overflow or interruption on system bus. | Incorrect baud rate settings, missing terminating resistors (120 Ohm), damaged CAN cable. | Check CAN cabling, shield grounding, baud rate configuration, and terminating resistors. |
| H05 | Internal Hardware Error | Control board hardware fault or internal component failure detected during self-test. | Internal memory corruption or hardware component failure. | Unserviceable hardware fault — power cycle drive; if fault persists, replace unit or return for factory repair. |
| NMAX | Overspeed | Motor actual speed exceeded maximum limit (parameter C0025). | Speed loop instability, inverted encoder signals, excessive external driving torque. | Check speed controller tuning parameters, encoder channel connections, and mechanical loads. |
| EER | EEPROM Read/Write Error | Non-volatile memory failure or parameter checksum error. | Power failure during parameter write operation or EEPROM hardware degradation. | Reload factory default settings (C0002) and re-download parameter file. If error recurs, control board memory is defective and unit requires repair/replacement. |
| LP1 | Mains Phase Failure | Phase loss detected on AC power input supply lines. | Blown main fuse, loose power terminal connection, unstable utility power. | Check input line voltages on L1, L2, L3 terminals and examine line contactors. |
| Sd2 | Resolver Fault | Loss or interruption of feedback signal from resolver (X7 terminal). | Broken resolver cable, loose connector pin, defective resolver sensor in motor. | Check Sub-D 9-pin connector at X7, verify feedback cable integrity and shielding. |
Frequently Asked Questions
What software is required to configure the Lenze EVS9322-ESV004?
Lenze Global Drive Control (GDC) software version 4.0 or higher, or Lenze EASY Starter software can be used for parameterization. Alternatively, parameter adjustments can be made locally using the optional EMZ9371BC keypad module.
What are the electrical input and output specifications of the EVS9322-ESV004?
The drive operates on a 3-phase supply voltage between 320 V AC and 528 V AC. It provides a rated power output of 0.75 kW, a continuous output current of 2.5 A, and a peak output current of 3.75 A for up to 60 seconds.
How are parameter configurations stored and transferred during a unit replacement?
The controller contains non-volatile EEPROM memory holding up to four independent parameter sets. Parameters can be backed up and uploaded to a replacement drive using GDC software, EASY Starter, or copied via the EMZ9371BC pluggable keypad.
What do the front-panel status LEDs indicate on the drive?
The green LED indicates controller readiness when blinking and normal operation when solid. The red LED indicates an active warning condition when blinking and a TRIP fault state (drive output disabled) when solid.
What does fault code H05 indicate and how is it resolved?
Fault code H05 indicates an internal control board hardware error or component failure detected during self-test. If power cycling the drive does not clear the fault, the internal hardware is unserviceable in the field and the drive must be repaired or replaced.
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