Lenze EVS9323-ESV004 EVS9323-ES V004 1.5 kW Servo Controller
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Product Information
The Lenze EVS9323-ESV004 is a 1.5 kW servo controller from the Lenze 9300 Servo series, designed for dynamic positioning and multi-axis motion control in automated manufacturing. Operating on a 3-phase mains supply from 320 V AC to 528 V AC (400/480 V AC nominal), this unit provides a rated continuous output current of 3.9 A with a peak output capability of 5.9 A for high-torque acceleration phases. Featuring the cold-plate mounting configuration (V004 variant), the controller direct-couples to an external cooling plate or heatsink surface, reducing heat accumulation within the IP20-rated enclosure and allowing for compact control panel footprints in packaging, material handling, and printing machinery.
System integration relies on integrated interfaces and modular expandability to match existing machine architectures. Feedback devices connect via dedicated terminals, including resolver feedback on connector X7 and universal encoder signals—such as TTL, SinCos, and Hiperface—on connector X8. Inter-drive synchronization and network motion control are handled via the onboard CAN system bus operating at speeds up to 500 kbit/s, while Slot A accepts fieldbus communication cards such as the Lenze EMF2133IB PROFIBUS module or EMF2192IB EtherCAT module. Replacing an existing unit requires transferring saved motor parameters, gain settings, and bus configurations using the Global Drive Control (GDC) software or a pluggable EMZ9371BC operating keypad, a process where ABC Industrial Parts can assist with pre-configured replacement drives or parameter transfer support.
Real-time operational monitoring and fault diagnosis are facilitated through front-panel LEDs and diagnostic registers. The unit features three LED status indicators: a green Ready light for operational status, a red Fault light indicating an active trip condition, and a yellow IMP light signaling pulse inhibit. Detailed fault logs are maintained in parameters C0168 and C0170, accessible via the GDC software or keypad, while analog outputs on terminals X3/1 and X3/2 allow direct monitoring of drive variables. Initial troubleshooting should verify 3-phase mains supply levels, DC bus voltage within the 460 V DC to 740 V DC range, CAN bus line termination, and feedback cable integrity. When persistent hardware errors or internal component failures occur, ABC Industrial Parts provides tested exchange units and repair services to restore machine operation without extended delay.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVS9323-ESV004 |
| Model / Type | EVS9323-ES V004 |
| Product Family | 9300 Servo |
| Component Type | Servo Controller |
| Rated Power | 1.5 kW |
| Supply Voltage | 3x 400 / 480 V AC |
| Supply Voltage Range | 320 - 528 V AC |
| Rated Output Current | 3.9 A |
| Maximum Output Current | 5.9 A (150% overload for 60 s) |
| DC Bus Voltage Range | 460 - 740 V DC |
| Maximum Output Frequency | 480 Hz |
| Switching Frequency | 8 kHz |
| Mounting Type | Cold-plate technology |
| Protection Rating | IP20 |
| Integrated Fieldbus | CAN system bus / CANopen (500 kbit/s max) |
Programming and Configuration
Commissioning and parameter adjustment for the Lenze EVS9323-ESV004 are primarily performed through Lenze Global Drive Control (GDC) software or the plug-in EMZ9371BC keypad unit. The controller features four internal non-volatile parameter sets, allowing multiple operating configurations to be saved directly on the unit. These memory banks store motor map data, speed controller tuning values, positioning profiles, and input/output assignments.
When deploying a replacement controller, parameter settings must be restored from a backup or transferred from the original unit. Using GDC software, parameter files can be uploaded from an existing drive and downloaded directly into the spare unit over the CAN bus interface or serial keypad link. Alternatively, the pluggable EMZ9371BC keypad allows manual parameter copying between identical drives. Reverting to factory settings can be executed at any time by loading parameter set command C0002.
Communication and System Integration
The EVS9323-ESV004 includes an integrated CAN system bus running CANopen protocol at transmission rates up to 500 kbit/s. This bus interface enables fast, multi-axis synchronization and cross-communication between drives without requiring additional network cards. Proper bus topology requires a 120 Ohm termination resistor fitted at both physical ends of the CAN network line to prevent communication errors.
For higher-level network integration, the unit features a modular Slot A extension port. This port accepts optional fieldbus cards, such as the Lenze EMF2133IB PROFIBUS module or EMF2192IB EtherCAT module, as well as InterBus expansion options. Feedback integration is supported across two dedicated physical interfaces: connector X7 handles resolver signals, while connector X8 accommodates digital incremental or absolute feedback systems using TTL, SinCos, or Hiperface protocols.
Diagnostics and Status Indication
The front panel of the EVS9323-ESV004 features three LED indicators that give immediate visual feedback regarding the operational state of the drive. The green Ready LED signals normal operational readiness, the red Fault LED illuminates when an active fault condition triggers a drive trip, and the yellow IMP LED shows that pulse inhibit is active, keeping the power output stage disabled.
Advanced diagnostic tools are available via parameters C0168 and C0170, which hold the historical fault memory log. Technicians can view detailed error codes and trip events using the EMZ9371BC keypad or through the diagnostic window in Global Drive Control (GDC) software. Additionally, programmable analog output terminals X3/1 and X3/2 provide real-time hardware signal monitoring for external meters or oscilloscope inspection.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Ready | Green - Solid/Flashing | Controller operational status / Ready for operation |
| Fault | Red - Solid | Drive fault trip active |
| IMP | Yellow - Solid | Pulse inhibit active |
Replacement and Spare Part Considerations
When replacing an EVS9323-ESV004 drive, ensure the replacement unit carries the matching V004 cold-plate designation. Standard 9300 series drives with integrated air heatsinks use different mechanical mounting dimensions and cooling requirements, making direct physical swap-outs impossible without panel modification. Proper thermal paste or flat surface seating against the cabinet cold plate must be maintained during installation to prevent thermal tripping.
Before applying power, transfer any option modules installed in Slot A (such as EMF2133IB or EMF2192IB) from the failed unit to the spare drive. Verify that terminal block connections, feedback cables on X7/X8, and 3-phase power lines are firmly seated. Parameter settings must be transferred using GDC software or the EMZ9371BC keypad to align motor feedback types, current limits, and CAN bus node ID settings with the host control system.
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 | Power section short circuit or earth fault detected | Short circuit in motor cable, motor winding fault, excessive capacitive cable load | Check motor and wiring for short circuits or insulation breakdown. If fault persists with motor disconnected, internal inverter stage failure (return unit for repair). |
| OC2 | Earth fault | Ground short circuit current detected | Earth fault in motor phase cable or motor housing insulation breakdown | Measure insulation resistance of motor and power cables. Check grounding system. |
| OC5 | I x t overload | Inverter continuous overload limit exceeded | Drive operated above rated continuous current for extended period, mechanical stall or heavy friction | Check mechanical load, process acceleration times, and current limits. |
| OU | Overvoltage DC bus | DC bus voltage exceeds maximum threshold limit (~770 V DC) | Excessive regenerative energy during deceleration, brake chopper inactive or braking resistor open/undersized | Check deceleration ramps, verify braking resistor connection and resistance value. |
| LU | Undervoltage DC bus | DC bus voltage dropped below minimum operating limit (~460 V DC) | Mains supply failure, blown supply fuse, input phase missing, mains voltage dip | Check mains voltage input levels, fuses, and power connections. |
| OH | Heatsink overtemperature | Heatsink temperature exceeds maximum allowable threshold | Cold plate surface cooling inadequate, ambient temperature too high, fan failure (if external module present) | Check thermal contact of cold plate mount, cooling medium, heat sink clean environment. |
| OH4 | Heatsink sensor error | Heatsink temperature sensor circuit open or short circuit | Internal temperature sensor failure or broken PCB trace | Internal hardware failure — return unit for repair. |
| LP | Phase failure | Mains phase failure detected | One supply phase missing or severely unbalanced supply voltage | Check supply line voltages and supply wiring across all 3 phases. |
| NMAX | Speed threshold exceeded | Actual motor speed exceeded maximum configured speed limit | Control loop instability, incorrect speed controller tuning, driving load | Check feedback encoder connections and speed controller gain settings. |
| SD2 | Resolver fault | Resolver signal loss or broken wire detected on connector X7 | Resolver cable unplugged, damaged shield, broken core, or damaged resolver sensor | Check connector X7 and resolver feedback cable wiring continuity. |
| SD3 | Encoder fault | Incremental/absolute encoder signal fault on connector X8 | Faulty encoder cable, missing supply voltage, or corrupted absolute track data | Verify encoder connection at X8, signal levels, and cable shielding. |
| CE0 | Communication fault CAN | System bus CAN communication error or bus-off state | CAN bus wiring short circuit, incorrect termination resistors (120 Ohm missing at line ends), baud rate mismatch | Check CAN bus wiring, termination resistors, and baud rate parameters. |
| CE1 | Automation module error | Communication fault between drive controller and plug-in module in Slot A | Module not properly seated, external fieldbus network interrupted, module failure | Check module seating, fieldbus cabling, and external network master. |
| EER | EEPROM error | Internal EEPROM checksum or non-volatile memory read/write failure | Internal memory corruption or hardware memory IC failure | Reload factory default settings (C0002). If error persists, internal memory failure — return unit for repair. |
| H05 | Internal fault | Hardware failure detected during power-on self test | Internal micro-controller or board power supply component failure | Internal board failure — unit requires repair or replacement. |
Frequently Asked Questions
What is the difference between the EVS9323-ESV004 and standard 9300 servo drives?
The V004 variant features cold-plate cooling technology, omitting internal cooling fins. It relies on direct thermal transfer to an external cooling surface or radiator, allowing for a significantly thinner housing profile inside the control cabinet.
Which software is used to configure the Lenze EVS9323-ESV004?
The controller is programmed and configured using Lenze Global Drive Control (GDC) software, or manually via the pluggable EMZ9371BC operating keypad.
What feedback encoder types are supported by this controller?
The unit natively supports resolvers via connector X7, as well as incremental and absolute encoders including TTL, SinCos, and Hiperface devices via connector X8.
How do I resolve a CE0 fault code on the EVS9323-ESV004?
A CE0 code indicates a CAN system bus fault. Check the CAN wiring for short circuits, ensure matching baud rates across all bus nodes, and verify that 120 Ohm termination resistors are present at both physical ends of the line.
Can I expand the drive to support PROFIBUS or EtherCAT fieldbus networks?
Yes. The controller contains a Slot A modular expansion bay that accepts fieldbus communication modules, including the EMF2133IB PROFIBUS module and EMF2192IB EtherCAT module.
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Data backup and recovery
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Specific firmware and hardware versions
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