Lenze EVS9329-EK 9300 Series 30 kW Servo Cam Profiler
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Product Information
The Lenze EVS9329-EK is a 30 kW panel-mounted servo controller from the 9300 Servo series, engineered specifically as a Servo Cam Profiler for dynamic motion control applications. Designed for installation inside an IP20 control cabinet, the drive operates from a 3-phase supply voltage ranging from 320 V AC to 528 V AC. It provides a rated continuous output current of 59 A with a peak current rating of 88.5 A for dynamic acceleration phases up to 60 seconds. The -EK function variant features integrated electronic cam profiling firmware (Kurvenscheibe), enabling direct execution of motion profiles and electronic cam tables without external motion control computing overhead.
System connectivity includes a primary resolver input at terminal X7, a master frequency incremental encoder input at X8, and a master frequency simulator output at X9 to enable multi-axis line synchronization. Inter-drive communication is managed via an integrated CAN system bus interface at connector X14 running at up to 500 kbit/s, while an integrated Slot A receptacle supports optional fieldbus modules such as PROFIBUS-DP (EMF2133IB), INTERBUS (EMF2102IBC), or LECOM RS-232/RS-485 interfaces. Commissioning a spare unit requires transferring the drive parameter set and electronic cam profiles stored in the non-volatile EEPROM using Global Drive Control (GDC) software or a pluggable Keypad XT operator panel (EMF2171IB). Support for parameter transfer and option module verification is available through ABC Industrial Parts.
Real-time operational monitoring is provided by three diagnostic status LEDs on the front panel: green indicates normal operation and readiness, yellow signals a warning, current limit, or controller inhibit, and red alerts to an active TRIP fault state. Detailed diagnostic codes can be retrieved via parameter C0168 using the Keypad XT, through CAN system bus status registers, or via the digital TRIP output terminal. While line faults such as short circuits (OC1), earth leakage (OC2), or DC bus overvoltage (OU) can often be resolved by checking field wiring and mains supply lines, internal errors such as EEPROM read/write failures (EER) or power section hardware defects (H05, H07, H10, H11) cannot be serviced on site and require unit replacement or repair through ABC Industrial Parts.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVS9329-EK |
| Model / Type | 9300 Servo Cam Profiler |
| Component Type | Servo Controller |
| Rated Power Output | 30 kW |
| Supply Voltage Range | 320 - 528 V AC |
| Supply Phase | 3-Phase |
| Continuous Output Current | 59 A |
| Peak Output Current | 88.5 A |
| Maximum Output Frequency | 480 Hz |
| Switching Frequency | 8 kHz |
| Integrated System Bus | CAN Bus (500 kbit/s) |
| Protection Rating | IP20 |
| Mounting Type | Panel Mount |
Programming and Configuration
The Lenze EVS9329-EK contains non-volatile EEPROM memory capable of holding up to four complete parameter sets along with specialized electronic cam tables. Setting up motion profiles and operational thresholds is performed using Lenze Global Drive Control (GDC) engineering software connected via a suitable diagnostic interface, or directly at the drive using an optional Keypad XT (EMF2171IB) module.
Because the -EK variant executes electronic cam profiles internally, configuration files control motor parameters, acceleration curves, speed loop tuning, switching frequency (rated at 8 kHz), and master-slave axis coordination. When commissioning a replacement unit, backing up the parameter file from the original unit or loading a stored GDC project file ensures that exact cam profile data and axis control setpoints are restored accurately.
Communication and System Integration
System integration across multi-axis machinery is achieved through integrated interfaces and optional communication modules. The drive features a built-in CAN system bus interface accessible at connector X14, running at speeds up to 500 kbit/s to synchronize multiple drives across a common bus network.
In addition to the onboard CAN bus, the unit includes modular Slot A for expanding communication capability. Option modules compatible with Slot A include PROFIBUS-DP (EMF2133IB), INTERBUS (EMF2102IBC), and LECOM RS-232/RS-485 modules. Physical axis synchronization is supported through the master frequency encoder input (X8) and simulator output (X9), along with standard resolver feedback at connector X7.
Diagnostics and Status Indication
The Lenze EVS9329-EK provides status feedback through hardware indicators, diagnostic parameters, and output terminals. Three front panel status LEDs give immediate visual feedback on the current operating state, distinguishing between normal operational readiness, active limit warnings, and fault conditions.
Detailed fault analysis can be conducted by connecting the Keypad XT module to view diagnostic parameter C0168. Status and error bits are also transmitted across the CAN system bus registers, and a hardware TRIP output terminal is provided on the control terminal strip for automated PLC fault signaling.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Red LED | Red - Solid/Active | TRIP active / Fault state present in controller |
| Green LED | Green - Solid/Active | Controller ready / normal operation active |
| Yellow LED | Yellow - Solid/Active | Warning state / current limit reached / controller inhibit active |
Replacement and Spare Part Considerations
When replacing an existing unit, confirm that the replacement model matches the exact EVS9329-EK designation. Standard 9300 series drives lack the internal electronic cam profiling firmware supplied with the -EK variant, which is necessary to execute onboard motion profile tables.
Prior to putting a spare drive into service, transfer all stored parameter sets and cam profile data from the original unit using GDC software or a Keypad XT module with its removable memory card. Additionally, remove any option module fitted in Slot A (such as PROFIBUS-DP EMF2133IB or INTERBUS EMF2102IBC) from the original drive and re-install it into the replacement unit.
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 motor terminals or in motor cable | Short circuit in motor windings or cabling, low inductance motor | Check motor cable and terminal block for short circuit, test motor insulation |
| OC2 | Earth Fault | Earth/ground fault on motor output lines | Ground connection in motor cable, motor winding isolation breakdown, excessive cable capacitance | Check cable and motor windings for earth leakage using megohmmeter, reduce motor cable length |
| OC5 | Overcurrent Acceleration | Overcurrent during dynamic acceleration phase | Acceleration time too short, mechanical blockage, incorrect motor parameters | Increase acceleration time, check mechanics for binding, verify motor control parameters |
| OU | Overvoltage DC Bus | DC bus circuit voltage exceeded upper threshold limit | Deceleration ramp too short, regenerative energy feedback, line overvoltage, brake chopper failure | Extend deceleration time, connect dynamic braking resistor, check mains supply voltage |
| LU | Undervoltage DC Bus | DC bus circuit voltage dropped below minimum threshold limit | Mains supply line failure, missing input phase, mains supply drop under load | Check mains power supply lines, input fuses, and line reactor |
| OH | Overtemperature Heatsink | Drive heat sink temperature exceeded maximum allowed limit | Inadequate control cabinet ventilation, dirty or blocked heatsink fins, fan failure | Clean heatsink, ensure enclosure fan is operational, improve cabinet cooling |
| OH3 | Overtemperature Motor Sensor | Motor temperature sensor trip via control terminals X10 | Motor thermal overload, continuous excessive load, defective thermal switch/PTC | Allow motor to cool down, check mechanical load, verify motor PTC connection |
| OH4 | Overtemperature Drive Interior | Internal ambient temperature inside drive housing too high | Excessive enclosure temperature, cooling airflow restricted | Reduce ambient panel temperature, check control cabinet airflow |
| OH7 | Motor Thermal Overload (I2t) | Calculated motor load I2t monitor limit reached | Continuous operation above rated motor current, improper motor current setpoint | Reduce continuous motor duty cycle, check motor dimensioning and current parameters |
| CE0 | Communication Fault Slot A | Communication failure with option module inserted in automation slot A | Fieldbus interruption, loose module connection, master PLC watchdog trip | Check fieldbus cabling, bus termination resistors, and module mounting |
| CE1 | System Bus CAN Fault | Communication error on integrated CAN system bus X14 | CAN bus wire broken, missing 120 ohm termination, baud rate mismatch | Check CAN bus wiring, ensure 120 ohm resistors at both end nodes, verify baud rate |
| CE2 | System Bus CAN Rx Overflow | Receive buffer overflow on CAN system bus | Excessive bus load, message transmission rate too high | Optimize CAN bus message timing, reduce cyclic transmission rate |
| CE3 | System Bus CAN Tx Overflow | Transmit buffer overflow on CAN system bus | CAN bus in error passive state, no acknowledge from bus partners | Verify CAN nodes connected, check cable continuity |
| PR0 | Parameter Set Error | Checksum error or invalid data detected during parameter set loading | Interrupted transfer, corrupted memory file | Reload parameter set from GDC or reload factory defaults |
| PR1 | Parameter Module Error | Missing or improperly inserted pluggable memory module | Memory module absent or bad electrical contact | Check memory module insertion, power off and re-seat module |
| EER | EEPROM Read/Write Error | Internal EEPROM memory read or write access failed | EEPROM memory hardware fault | Internal hardware fault — return unit for repair or replace servo controller |
| H05 | Power Section Hardware Error | Internal error detected in power stage feedback / gate drive hardware | Defective internal power module or current sensor board | Internal hardware fault — return unit for repair |
| H07 | Internal Voltage Fault | Internal auxiliary supply power failure inside drive electronics | Defective internal switch-mode power supply board | Internal hardware fault — return unit for repair |
| H10 | Internal Controller Error | Main processor internal control logic failure | Defective control board micro-controller unit | Internal hardware fault — return unit for repair |
| H11 | System Software Hardware Fault | Fatal internal hardware/firmware execution error | Control board malfunction | Internal hardware fault — return unit for repair |
| P12 | Mains Phase Failure | Missing phase on incoming 3-phase mains supply | Blown mains fuse, loose incoming line connection, unstable supply grid | Check three mains input phases under load conditions |
| NMAX | Maximum Speed Exceeded | Motor speed exceeded configured nmax safety limit | Unstable speed loop tuning, incorrect encoder pulse count, runaway condition | Check speed controller parameters, encoder feedback resolution, and nmax threshold |
Frequently Asked Questions
What does the -EK variant code indicate on the Lenze EVS9329-EK?
The -EK suffix indicates that the controller includes integrated electronic cam profiling firmware (Kurvenscheibe), enabling it to execute complex dynamic motion profiles and electronic cam tables locally without external PLC motion controllers.
What software and operator panels are used to program the EVS9329-EK?
Drive parameters and electronic cam tables are configured using Lenze Global Drive Control (GDC) software or locally using the pluggable Keypad XT (EMF2171IB) operator panel.
Which fieldbus options are supported by the EVS9329-EK?
The drive includes an onboard CAN system bus interface (X14) operating at 500 kbit/s. Optional fieldbus modules for Slot A include PROFIBUS-DP (EMF2133IB), INTERBUS (EMF2102IBC), and LECOM RS-232/RS-485 interfaces.
What steps are required when replacing a faulty EVS9329-EK drive?
Ensure the replacement drive is an exact -EK variant, transfer the stored parameter sets and electronic cam tables using GDC software or Keypad XT memory, and move any option card from Slot A to the replacement unit.
What do internal fault codes like EER, H05, or H10 mean?
Codes such as EER (EEPROM fault), H05 (power stage error), H07 (internal power supply fault), H10 (controller error), and H11 (hardware/software execution error) indicate internal hardware failures that require returning the unit for repair or exchanging it for a tested spare.
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