Lenze 13431693 EVS9323-EP 9300 Servo Inverter Drive 1.5kW
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Product Information
The Lenze 13431693 EVS9323-EP is a 1.5 kW positioning servo inverter drive belonging to the Lenze 9300 Servo family. Built for precise control of both synchronous and asynchronous AC servo motors, this drive combines flexible vector control with integrated motion positioning capabilities. It operates across a 3-phase mains voltage input ranging from 320 V AC to 528 V AC, delivering a continuous output current of 3.9 A at an 8 kHz switching frequency. To accommodate heavy acceleration ramps and high dynamic load demands, the unit features a 150% peak overload capacity capable of outputting 5.9 A for up to 60 seconds while dissipating 90 W under full rated load.
Network integration and feedback handling are built directly into the hardware architecture of the EVS9323-EP. The unit includes a galvanically isolated CAN/CANopen system bus interface for direct inter-drive communication across multi-axis networks. Dedicated 9-pin Sub-D connectors support resolver input on terminal X7, incremental encoder or master frequency signals on terminal X8, and encoder simulation output on terminal X9. An integrated Automation Interface slot X3 allows fieldbus expansion via plug-in modules such as PROFIBUS-DP or Ethernet. Commissioning and operational parameters are managed using Lenze Global Drive Control software or the removable EMZ9371BC XT Keypad. Non-volatile internal EEPROM memory stores up to four complete parameter sets, allowing ABC Industrial Parts to support technicians with spare unit preparation and configuration transfers prior to installation.
System diagnostic evaluation is provided through dual LED status indicators alongside digital software monitoring. The green DRIVE READY LED signals controller activation or inhibition status, while the red DRIVE FAULT LED indicates active warnings or fault trips that trigger drive shut-off. Detailed operational history and active fault codes are logged within parameter C0168. Routine field diagnostics include checking mains supply voltages across terminals, verifying motor thermal sensors at terminal X10, and inspecting resolver or encoder cabling. When internal memory failures or hardware power stage faults occur, internal board repairs are not field-serviceable, making unit exchange or bench repair through ABC Industrial Parts the most efficient path to restore machine operation.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 13431693 |
| Model / Type | EVS9323-EP |
| Component Type | Servo Drive |
| Product Family | 9300 Servo |
| Rated Power | 1.5 kW |
| Supply Voltage Range | 320 - 528 V AC |
| Rated Current | 3.9 A |
| Peak Output Current | 5.9 A |
| Power Dissipation | 90 W |
| Switching Frequency | 8 kHz |
| Digital Inputs | 5 |
| Digital Outputs | 2 |
| Analog Inputs | 2 |
| Analog Outputs | 2 |
| Onboard Fieldbus | CAN / CANopen |
Programming and Configuration
The Lenze EVS9323-EP features an integrated positioning controller that supports point-to-point positioning tasks, synchronized multi-axis profiles, and automated motion task execution without relying on an external positioning module. Engineering and parameter configuration are performed using Lenze Global Drive Control (GDC) software. GDC provides visual access to internal function blocks, positioning program tables, and motion profile setups.
Parameter management is supported by internal EEPROM memory capable of maintaining four distinct parameter sets onboard without continuous power. Field technicians can rapidly copy parameter sets between drive units using the optional pluggable EMZ9371BC XT Keypad. This keypad allows quick parameter transfer during field replacement, minimizing machine downtime during maintenance operations.
Communication and System Integration
The EVS9323-EP includes an onboard system bus based on CAN/CANopen protocols. Galvanically isolated up to 2.5 kV, this interface supports multi-axis networking and direct inter-drive communication across material handling conveyors, packaging equipment, and multi-axis assembly machines.
For integration into broader fieldbus topologies, the drive features an Automation Interface (AIF) slot at location X3. This expansion slot accommodates optional communication modules such as the EMF2133IB PROFIBUS-DP module or the EMF2191IB Ethernet interface module. Signal feedback interfaces include Sub-D 9-pin connections for resolver feedback at X7, incremental encoder or master frequency input at X8, and encoder simulation output at X9.
Diagnostics and Status Indication
Real-time operational status monitoring is provided by front-panel LED indicators and internal diagnostic logs. The green DRIVE READY LED signals controller enabling or inhibition status, while the red DRIVE FAULT LED indicates active fault trips or warnings.
Comprehensive diagnostic routines can be conducted through the EMZ9371BC XT Keypad diagnostic menu or via GDC software's online monitoring tools. The drive maintains a non-volatile fault logbook in parameter C0168, recording historical error events with operational context to streamline troubleshooting.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Red LED (DRIVE FAULT) | Red - Solid ON or Flashing | ON continuous = Active Trip / Fault condition causing drive shutdown. FLASHING = Active Warning condition. |
| Green LED (DRIVE READY) | Green - Solid ON or Flashing | ON continuous = Controller Enabled and ready for operation. FLASHING = Controller Inhibited. |
Replacement and Spare Part Considerations
When replacing an existing Lenze EVS9323-EP drive, ensure that the part number matches directly. The drive must be properly configured with the machine's specific motor parameters, positioning profile tables, and fieldbus address before being placed into service.
Parameter transfer can be accomplished using Lenze Global Drive Control software or by copying the active parameter set to an EMZ9371BC XT Keypad from the original unit and transferring it to the replacement. If the original drive contained an optional fieldbus communication module in Automation Interface slot X3 (such as PROFIBUS-DP or Ethernet), transfer the module to the replacement drive and verify network termination switches.
Before restoring line power, confirm that feedback cabling connections (X7 resolver or X8 encoder) and motor PTC thermal connections at terminal X10 are properly fastened. Verify that the mains supply voltage matches the drive rating of 320 to 528 V AC.
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 during Acceleration | Output current exceeds absolute maximum peak current threshold during motor acceleration. | Short circuit or ground fault in motor cable/winding; acceleration time set too short; motor undersized. | Check motor wiring and insulation; increase acceleration ramp time; verify motor power parameters. |
| OC2 | Overcurrent during Deceleration | Output current exceeds maximum current limit during braking / deceleration phase. | Deceleration time set too short; steep braking profile. | Increase deceleration ramp time; check load inertia. |
| OC5 | Overcurrent during Constant Speed Operation | Output current exceeds current threshold during steady-state operation. | Abrupt load spike or mechanical jam on motor shaft; short circuit in motor output. | Check mechanical load for binding/jamming; check motor wiring. |
| OU | DC Bus Overvoltage | Intermediate circuit DC bus voltage exceeded maximum allowable limit (>770 V DC). | Excessive regenerative energy returned from motor; deceleration time too short; braking resistor defective or not connected. | Increase deceleration time; install or check external braking resistor and chopper circuit. |
| LU | DC Bus Undervoltage | Intermediate circuit DC bus voltage fell below minimum allowable operating threshold (<430 V DC). | Mains supply voltage drop or failure; supply phase missing; main contactor opened. | Check 3-phase mains supply voltage and fuses; check line contactor operation. |
| OH | Heatsink Overtemperature | Power section heatsink temperature exceeded maximum operating temperature (>85°C). | Ambient temperature above specification; dirty heatsink fins; internal cooling fan defective or blocked. | Clean heatsink cooling fins; verify control cabinet ventilation; check/replace cooling fan. |
| OH4 | Motor Thermal Overload (I2t) | Calculated I2t thermal load limit for connected motor exceeded. | Motor operated continuously above rated current; incorrect motor data entered in drive parameters. | Reduce motor load; verify motor rated current settings in parameter setup. |
| OH7 | Motor Temperature Sensor Fault | Thermal contact or PTC sensor connected to terminal X10 triggered drive shutdown. | Motor thermal winding protection opened due to motor overheating; sensor cable interrupted. | Allow motor to cool down; check motor thermal sensor cable and connection. |
| CE0 | Automation Interface (AIF) Communication Error | Communication failure between control unit and plug-in module on AIF interface slot X3. | Loose module in X3 slot; fieldbus cable broken or disconnected; master station stopped. | Check fieldbus cabling and termination; re-seat AIF communication module; verify PLC/master connection. |
| EER | EEPROM Memory Failure | Data checksum error when reading non-volatile EEPROM internal memory. | Parameter corruption or internal EEPROM component damage. | Reload factory default settings; if fault persists after power cycle, internal hardware failure — return unit for repair or replace unit. |
| H05 | Internal Hardware Fault | Internal control board or power section hardware diagnostic test failed. | Internal circuit board error, power supply fault, or gate drive failure. | Internal board failure — not field serviceable; replace unit or return for factory repair. |
| Sd2 | Resolver Feedback Fault | Loss or signal fault on resolver connection at terminal X7. | Resolver cable damaged, loose connector, broken wire, or missing shielding. | Check resolver wiring, connection at X7, and cable shielding integrity. |
| Sd3 | Incremental Encoder Fault | Encoder signal track failure or loss of feedback pulse sequence at terminal X8. | Encoder cable defect, missing encoder supply, or mechanical decoupling. | Check encoder cable and plug connection at X8; verify encoder power supply. |
| Pr0 | Positioning Program Fault | Positioning controller detected invalid profile parameter or target position out of software limit switches. | Target position exceeds software limit switch values; invalid motion task profile parameters. | Verify motion profile program in GDC; check software end-position limits. |
| NMAX | Maximum Speed Exceeded | Motor actual speed exceeded maximum threshold setting. | Unstable speed controller tuning; external overhauling load. | Tune speed loop parameters; check mechanical overhauling load conditions. |
| LP1 | Motor Phase Failure | Interruption detected on one or more output motor phases (U, V, W). | Motor cable disconnected; open circuit in motor winding; motor output contactor open. | Check output motor connections, terminal block, and motor contactor. |
Frequently Asked Questions
What software is used to configure the Lenze EVS9323-EP drive?
The drive is configured using Lenze Global Drive Control (GDC) software. Alternatively, parameters can be adjusted directly using the pluggable EMZ9371BC XT Keypad.
How are parameters transferred when replacing a damaged EVS9323-EP drive?
Parameters can be uploaded from the original drive and downloaded to the replacement unit using GDC software. If the keypad is available, parameter sets saved in internal EEPROM memory can be transferred directly using the EMZ9371BC XT Keypad.
What feedback devices are compatible with terminal X7 and X8?
Terminal X7 supports standard resolver feedback via a Sub-D 9-pin connector, while terminal X8 accepts incremental encoder signals or master frequency inputs.
What fieldbus communication options are supported on the EVS9323-EP?
The drive features built-in CAN/CANopen system bus communication. Additional networks, such as PROFIBUS-DP (EMF2133IB) or Ethernet (EMF2191IB), are supported via the Automation Interface slot X3.
What does fault code OU indicate on the EVS9323-EP?
Fault code OU indicates DC bus overvoltage exceeding 770 V DC, typically caused by steep deceleration ramps or a missing/defective braking resistor.
How should internal hardware error H05 or memory fault EER be resolved?
Fault codes H05 and EER indicate internal control circuit or EEPROM failure. If power cycling and reloading default parameter sets do not clear the fault, internal repair or drive replacement is necessary.
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