Lenze EVS9329-ES 9300 Series 30kW Servo Controller
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Product Information
The Lenze EVS9329-ES is a 30 kW panel-mounted servo controller within the Lenze 9300 Servo series, engineered to deliver field-oriented vector control for both synchronous and asynchronous AC servo motors. Operating on a three-phase AC supply rating of 400 V AC across an input range of 320 V AC to 528 V AC, this IP20-rated standard inverter unit provides a continuous output current of 59 A and a peak overload current of 88.5 A for up to 60 seconds. Designed for demanding industrial motion control applications, the drive maintains precise positioning, speed, and torque control across multi-axis synchronized assembly lines, high-dynamic packaging machinery, and material handling systems.
Integrating the EVS9329-ES into an automated system relies on its flexible interface configuration, which includes an onboard CAN system bus for cross-drive communication and feedback terminal support for 2-pole or multi-pole resolvers, TTL incremental encoders, and Sin/Cos encoders. Modular expansion for broader communication networks is achieved through a built-in Automation Interface slot that accepts pluggable option modules such as the EMF2133IB PROFIBUS, EMF2175IB CANopen, or EMF2192IB EtherCAT cards. Commissioning a replacement drive requires restoring the application parameters, as the controller utilizes internal non-volatile EEPROM storage holding up to four distinct parameter sets. Configuration profiles can be cloned directly using the pluggable Lenze 9371BB keypad module or restored via Lenze Global Drive Control software, where ABC Industrial Parts can support technical teams in sourcing pre-tested replacement hardware.
Diagnostic monitoring on the EVS9329-ES is handled via front-panel LED indicators, where a solid green light indicates active control voltage and operational readiness, solid yellow signals a warning or active current threshold, and solid red indicates a fault trip or internal hardware error. Maintenance technicians can inspect the drive error buffer using keypad parameter C0168 or utilize real-time oscilloscope tools in Global Drive Control software to identify fault conditions. When facing unrecoverable error codes or hardware failures within the output power stage or control board, initial checks should confirm mains supply stability, wiring integrity, and fieldbus option module seating. Internal board faults are not field-serviceable, making unit repair or a pre-tested replacement through ABC Industrial Parts the standard path to restore production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVS9329-ES |
| Model / Type | 9300 Series Servo Inverter Standard Device |
| Rated Power Output | 30 kW |
| Supply Voltage | 400 V AC |
| Supply Voltage Range | 320 - 528 V AC |
| Continuous Output Current | 59 A |
| Peak Output Current | 88.5 A |
| Switching Frequency | 8 kHz |
| Control Method | Field-oriented vector control |
| Protection Rating | IP20 |
| System Bus | CAN (Integrated) |
Programming and Configuration
Programming and parameter management for the Lenze EVS9329-ES servo controller are performed using Lenze Global Drive Control (GDC) software or directly via the detachable 9371BB keypad module. The drive contains an internal non-volatile EEPROM memory system capable of retaining up to four independent parameter sets. This capability allows operators to store backup settings or configure alternative operational modes directly on the device memory.
When commissioning a replacement unit, parameter profiles must be transferred from the original controller. The 9371BB keypad facilitates direct parameter cloning between identical drive units without requiring an external computer. Alternatively, configuration files can be saved, edited, and downloaded using GDC software to verify motor data, feedback encoder settings, and control loop parameters prior to enabling the drive.
Communication and System Integration
The EVS9329-ES incorporates an integrated CAN system bus designed for high-speed inter-drive communication and precise synchronization across multi-axis motion control applications. This onboard CAN interface allows multiple Lenze 9300 series drives to share process data directly without needing dedicated central control hardware for inter-axis coordination.
For integration into broader fieldbus control architectures, the drive features a pluggable Automation Interface (AIF) expansion slot. This slot accommodates various optional fieldbus modules, including the EMF2133IB PROFIBUS module, EMF2175IB CANopen module, and EMF2192IB EtherCAT module, as well as INTERBUS options. Feedback integration supports resolvers, TTL incremental encoders, and Sin/Cos encoders for precise motor speed and position monitoring.
Diagnostics and Status Indication
The Lenze EVS9329-ES delivers primary status information through three diagnostic LEDs located on the front interface. These visual indicators report supply status, drive readiness, warning conditions, and trip states to assist technicians during routine operation and initial troubleshooting.
Comprehensive diagnostic history is stored internally and can be examined via parameter C0168 using the 9371BB keypad. For advanced signal tracing and dynamic tuning analysis, the Global Drive Control (GDC) engineering tool provides real-time status displays and integrated oscilloscope functionality.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Green LED (Operation / Ready) | Green - Solid | Control voltage active and drive status operational / ready for enable. |
| Red LED (TRIP / Fault) | Red - Solid | Fault trip active or internal hardware malfunction; output stage inhibited. |
| Yellow LED (Warning) | Yellow - Solid | Warning condition or threshold active (e.g., current limit reached, thermal warning). |
Replacement and Spare Part Considerations
When planning a replacement for a Lenze EVS9329-ES servo controller, ensure that electrical power ratings match the existing installation. The unit operates on a 400 V AC supply, delivering 59 A continuous current and requiring an IP20 panel-mounting enclosure space.
When swapping out a faulty unit, transfer any installed Automation Interface (AIF) module—such as the EMF2133IB PROFIBUS or EMF2192IB EtherCAT module—to the replacement drive. Additionally, parameter sets stored in the original unit must be backed up and written to the replacement controller via the 9371BB keypad or Global Drive Control software before re-commissioning.
In cases where internal hardware faults like H05, H10, or power section short circuits (OC1) prevent drive startup, component-level repairs or full replacement of the drive assembly are necessary to restore normal machine operation.
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 or extreme overcurrent at motor terminals or output power stage. | Short circuit in motor cable or motor winding; excessive acceleration rate; damaged power module. | Check motor and motor wiring for short circuits or ground faults. Increase acceleration time. If fault occurs immediately upon power up without motor connected, internal power module is damaged requiring drive repair or replacement. |
| OC2 | Earth Fault | Ground fault on motor phase terminals. | Insulation failure in motor cable or motor winding; excessive cable capacitance to earth. | Check motor insulation resistance with megohmmeter; check motor wiring for earth contacts; verify motor cable length limits. |
| OC5 | I x t Overload | Drive overload stage active due to continuous operation above rated current. | Drive undersized for load duty cycle; mechanical block/friction; incorrect motor data parameterization. | Check mechanical drive train for binding; verify motor parameters; adjust motion profile or increase drive capacity. |
| OU | Overvoltage | DC bus intermediate circuit voltage exceeded maximum upper threshold. | Excessive regenerative energy during deceleration; deceleration time too short; brake chopper or braking resistor open or improperly dimensioned. | Increase deceleration ramp time; check external braking resistor and chopper connections; measure mains voltage for surges. |
| LU | Undervoltage | DC bus intermediate circuit voltage dropped below lower fault threshold. | Mains supply voltage drop or failure; open supply fuse; line reactor impedance too high. | Check mains voltage input levels; check fuses and supply contactors; verify line supply wiring. |
| OH | Heatsink Overtemperature | Heatsink temperature exceeded upper limit (>90 °C). | Inadequate control cabinet cooling or ventilation; clogged heatsink fan/fins; ambient temperature too high; continuous overload operation. | Clean heatsink cooling fins and verify internal fan operation; ensure proper cabinet ventilation clearance. |
| OH3 | Motor Overtemperature Sensor | Motor temperature sensor (PTC / KTY) triggered overtemperature trip. | Motor thermal overload; cooling fan failure on motor; thermal sensor cable broken or disconnected. | Allow motor to cool down; check motor thermal sensor connections; verify motor cooling system. |
| OH4 | Internal Drive Temperature | Internal cabinet/enclosure air temperature inside inverter exceeded maximum limit. | Excessive enclosure temperature; internal drive fan failed. | Improve enclosure cooling and check internal fan function. |
| OH7 | Motor Thermal Overload (I2t) | Calculated motor thermal load (I2t monitor) exceeded permissible limit. | Continuous operation at low speed with high current without forced ventilation. | Reduce continuous load; install external motor forced cooling fan. |
| OH8 | Motor Temperature Sensor Wire Break | Temperature sensor circuit open or shorted. | Damaged temperature sensor cable or bad contact at control terminals. | Inspect sensor wiring connected to terminals T1 and T2. |
| PR0 | Program Fault / System Error | Internal operating system runtime error. | Severe electromagnetic interference (EMC); corrupted microcode execution. | Perform mains reset. If fault recurs, internal hardware or mainboard failure has occurred; return unit for repair. |
| PR1 | System Memory Fault | Internal memory structure corruption or program checksum fault. | EPROM failure or internal microcode error. | Internal hardware failure — replace controller or return unit for service. |
| CE0 | AIF Communication Error | Communication failure between inverter control board and Automation Interface (AIF) fieldbus module. | AIF module missing, improperly seated, or damaged; bad contact at internal connector. | Power down unit and re-seat the AIF module. Check module mounting screws. |
| CE1 | System Bus CAN-IN1 Timeout | Timeout during reception of process data object 1 on CAN system bus. | CAN bus cable interruption, master controller offline, incorrect baud rate or termination resistor missing. | Inspect CAN bus cable and bus connection; verify node address, baud rate settings, and line termination. |
| CE2 | System Bus CAN-IN2 Timeout | Timeout during reception of process data object 2 on CAN system bus. | Transmitting CAN node stopped communicating. | Check status of communicating CAN peer node and bus line. |
| CE3 | System Bus CAN-IN3 Timeout | Timeout during reception of process data object 3 on CAN system bus. | CAN bus message loss or sender offline. | Verify host system CAN broadcast state. |
| CE4 | System Bus Bus-Off State | CAN controller hardware entered Bus-Off state due to excessive transmission errors. | Excessive electrical noise, incorrect baud rate setting, missing termination resistors (120 Ohm), or damaged CAN driver circuit. | Check CAN wiring, shielding, and line termination resistors at physical end nodes. |
| NMAX | Overspeed Limit Exceeded | Actual motor speed exceeded maximum configured threshold (NMAX). | Incorrect encoder/resolver polarity; feedback signal interference; unstable speed controller tuning. | Check speed controller parameters; verify feedback encoder wiring and resolution settings. |
| H05 | Internal Hardware Error | Self-test failure on power board or control board. | Board-level circuit defect or failure of internal supply voltages. | Internal hardware fault — return drive for factory repair or replacement. |
| H10 | Heatsink Sensor Circuit Error | Heatsink temperature evaluation circuit open or shorted. | Damaged internal thermistor or open trace on control board. | Internal hardware failure — return unit for service. |
| H11 | Internal Temp Sensor Error | Internal drive ambient temperature sensor circuit defect. | Control board temperature sensor open or shorted. | Internal hardware failure — return unit for service. |
| EEr | External TRIP Fault Input | External fault triggered via digital input assigned to EEr function. | External fault condition activated by connected safety switch, thermal switch, or external PLC signal. | Check external signal source and digital input state. |
Frequently Asked Questions
What tools are required to configure the Lenze EVS9329-ES servo controller?
The EVS9329-ES can be configured using the pluggable Lenze 9371BB keypad module directly on the unit or via a computer running Lenze Global Drive Control (GDC) software.
How are parameter settings transferred to a replacement EVS9329-ES drive?
Parameters can be cloned using the 9371BB keypad's internal memory feature or downloaded from a saved GDC software parameter backup file into the replacement controller.
Which fieldbus networks does the EVS9329-ES support?
The drive features an onboard CAN system bus interface and supports additional fieldbus protocols including PROFIBUS-DP (via EMF2133IB), CANopen (via EMF2175IB), EtherCAT (via EMF2192IB), and INTERBUS through pluggable Automation Interface (AIF) modules.
What does a solid red LED on the front panel indicate?
A solid red LED indicates an active TRIP fault or an internal hardware malfunction, which causes the output power stage of the servo inverter to inhibit output.
How can I view the fault history on the EVS9329-ES?
The internal error buffer can be inspected using parameter C0168 via the 9371BB keypad module or monitored through the diagnostic view in Global Drive Control software.
What should be done if fault code OC1 appears immediately upon powering up?
If OC1 occurs on power up with no motor connected, the internal power module is damaged, requiring drive repair or replacement.
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