Lenze EVS9329-EP 9300 Servo Position Controller 30 kW
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Product Information
The Lenze EVS9329-EP is a 30 kW servo position controller from the Lenze 9300 Servo product family, engineered for high-precision motion control across automated manufacturing lines. Operating on a 3-phase AC supply voltage ranging from 320 V to 528 V AC, the drive delivers a rated continuous output current of 59 A and a maximum peak current of 88.5 A to handle demanding acceleration profiles. Powered by an advanced 32-bit digital signal processor executing field-oriented vector control algorithms, the unit manages torque, velocity, and position control for both permanent magnet synchronous servo motors and asynchronous motors.
To simplify control integration, the drive includes an integrated CAN system bus operating at speeds up to 500 kbit/s, a Sub-D 9-pin resolver connection, and a 500 kHz digital frequency master encoder input and output interface. An onboard automation slot accepts optional plug-in fieldbus modules, including the EMF2131IB PROFIBUS-DP, EMF2111IB INTERBUS, and EMF2102IB LECOM adapters. Commissioning a replacement unit requires transferring application settings, as up to four complete parameter sets are stored in non-volatile internal EEPROM memory. Parameter transfer can be executed using the optional EMZ9371BB operating module or Lenze Global Drive Control software version 4.x or higher, with ABC Industrial Parts available to support spare part sourcing and configuration transfer.
Real-time operational feedback is provided on the front panel by three indicator LEDs: a green READY/IMP LED for drive status and pulse enable, a yellow BUS/CAN LED for system bus activity, and a red TRIP LED indicating an active fault condition with disabled output power. Maintenance engineers can interrogate fault history using parameter C0161, keypad trip logs, or software diagnostic windows. While external line, temperature, or motor faults can be addressed directly in the field, internal hardware errors such as H05 or H07 require component-level servicing. In these cases, sending the faulty drive for repair or sourcing a fully tested exchange unit through ABC Industrial Parts provides a direct route back to full operation.
Technical Specifications
| Rated Power Output | 30 kW |
| Supply Voltage Range | 320 - 528 V AC |
| Rated Continuous Current | 59 A |
| Maximum Output Current | 88.5 A |
| Switching Frequency | 8 kHz |
| Maximum Output Frequency | 480 Hz |
| CAN Bus Data Rate | 500 kbit/s |
| Encoder Interface Maximum Frequency | 500 kHz |
Programming and Configuration
Parameter setting and motion profile setup for the Lenze EVS9329-EP are performed using Lenze Global Drive Control (GDC) software version 4.x or higher or the optional EMZ9371BB operating module keypad. The controller features internal non-volatile EEPROM memory capable of holding up to four independent parameter sets. This multi-memory structure allows operators to store alternative operational profiles or machinery motion routines directly on the drive.
During commissioning or replacement, key motion parameters must be aligned with the mechanical axis requirements. Parameters such as position loop gains (C0254), acceleration ramps, switching frequencies (configured up to 8 kHz), and feedback thresholds are downloaded via serial interface or copied using the EMZ9371BB keypad memory module. Reloading factory default parameter settings via code C0002 allows users to clear unverified configurations prior to downloading documented application settings.
Communication and System Integration
The EVS9329-EP controller provides multi-bus network connectivity centered on an integrated system bus CAN interface capable of transmission speeds up to 500 kbit/s. Electronic gearboxing, master-follower frequency cascading, and precise shaft synchronization are supported using the 500 kHz digital frequency master encoder inputs and outputs alongside the Sub-D 9-pin resolver connection.
Higher-level industrial fieldbus systems integrate directly via the unit's onboard automation slot. Compatible option cards include the EMF2131IB module for PROFIBUS-DP, the EMF2111IB module for INTERBUS, and the EMF2102IB module for LECOM RS232 or RS485 communication. Correct physical termination using 120-ohm resistors at both ends of the CAN system bus line is required to maintain reliable network communication and prevent bus error states.
Diagnostics and Status Indication
Diagnostic monitoring on the EVS9329-EP is conducted through faceplate status LEDs, software diagnostic windows in Global Drive Control (GDC), or parameter queries. Parameter code C0161 provides direct access to the unit's fault memory history, while fieldbus status words can be queried over CAN or optional fieldbus interfaces during operation.
Visual status monitoring is provided by three LEDs located on the controller faceplate. The green READY/IMP LED illuminates solid when the drive is ready and pulse enable is active. The yellow BUS/CAN LED indicates active communication or warnings on the CAN bus network. The red TRIP LED illuminates solid when a system fault occurs, causing the drive to enter a TRIP state and immediately disable output power.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Red LED (TRIP) | Red - Solid | Fault present / drive in TRIP state (output power disabled) |
| Green LED (READY / IMP) | Green - Solid | Drive ready for operation / pulse enable present |
| Yellow LED (BUS / CAN) | Yellow - Active | System bus / CAN bus communication status active or warning |
Replacement and Spare Part Considerations
When replacing an existing Lenze EVS9329-EP unit, technicians must confirm that the replacement model matches the 30 kW power rating, 59 A continuous current, and 320–528 V AC voltage range required by the application. Physical installation requires verifying the heat sink seating, enclosure ventilation space, and resolver cable attachment at the Sub-D 9-pin interface.
Because drive parameter settings control axis scaling and motion positioning, a replacement unit cannot be put into service without restoring the application-specific parameters. Any plug-in automation module (such as PROFIBUS-DP EMF2131IB or INTERBUS EMF2111IB) installed in the original controller must be transferred to the spare unit. Parameter profiles can be backed up and reloaded using GDC software v4.x+ or transferred using the pluggable EMZ9371BB keypad module.
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 on motor terminals or excessive earth leakage current | Short circuit in motor winding or motor cable; ground fault; acceleration ramp too steep | Check motor cable and windings for insulation breakdown; check acceleration times |
| OC2 | Earth Fault | Earth fault / ground short detected at drive output | Ground fault in output phase cable or motor stator winding | Disconnect motor cables and measure insulation resistance to earth |
| OC5 | I2t Overload | Continuous current overload threshold exceeded (I2t limitation) | Drive overloaded mechanically, binding axis, motor improperly sized for duty cycle | Check mechanical load and axis motion profile; lower continuous torque demand |
| OU | Overvoltage | DC bus overvoltage limit exceeded | Braking energy during deceleration too high; brake chopper module or resistor defective or disconnected; main supply voltage too high | Check deceleration times; check external brake resistor wiring and resistance; verify AC supply voltage |
| LU | Undervoltage | DC bus undervoltage fault threshold reached | Mains supply interrupted, voltage drop under load, fuse blown, or supply phase missing | Check AC supply line voltage and incoming fuses; verify power supply connections |
| OH | Heat Sink Temperature Overheating | Power section heat sink temperature exceeded maximum permitted limit | Inadequate cabinet ventilation, clogged cooling fins or fan filter, cabinet fan or internal fan failure, ambient temperature too high | Clean heat sink cooling fins; verify enclosure fan operation; improve cabinet cooling |
| OH3 | Motor Overheating (PTC) | Motor temperature sensor (PTC/TK) reported overtemperature | Motor thermal overload, cooling fan failure on motor, heavy duty cycle at low speed | Allow motor to cool down; inspect motor fan and load conditions |
| OH4 | Drive Interior Overtemperature | Temperature inside the drive housing is too high | Ambient temperature around unit exceeds spec; panel fan failed | Improve enclosure cooling and airflow around drive |
| OH7 | Motor Temperature Sensor Open/Short | Fault detected in motor temperature sensor circuit (KTY / PTC sensor connection) | Sensor wire broken, loose terminal connection, defective KTY sensor | Check wiring at terminal X10 / sensor interface; test thermal sensor resistance |
| CE0 | CAN Communication Error | System bus (CAN) interface communication error / BUS OFF | Bus cable broken, improper termination resistor, severe noise interference, wrong baud rate setting | Check CAN wiring, bus termination resistors (120 Ohm at ends), and baud rate configurations |
| CE1 | Automation Module Communication Fault | Communication failure between controller board and plug-in automation module | Module incorrectly seated in automation slot, defective module, hardware fault | Re-seat communication module; replace module if fault persists; internal board failure if unresolvable — return for repair |
| NMAX | Speed Overrun / Overspeed | Motor speed exceeded maximum threshold setting | Uncontrolled axis movement, bad encoder/resolver feedback signal, incorrect speed gain parameters | Check feedback cable shielding, resolver connection, and speed loop tuning parameters |
| H05 | Internal Hardware Fault | Internal power supply or control board hardware defect detected during POST | Internal component failure, corrupted internal bus logic | Internal hardware fault — power cycle drive; if fault recurs, unit is not field-serviceable and must be returned for repair |
| H07 | Internal Drive Initialization Error | Self-test failure during internal boot procedure | Internal hardware error or power board fault | Internal hardware failure — return drive to authorized service center for repair |
| PR0 | Positioning Error / Following Error | Positioning lag / following error exceeded configured tolerance window | Mechanical blockage, excessive acceleration, position gain tuning too soft, brake not releasing | Check mechanical axis freedom and holding brake; adjust position controller gain (C0254) or error threshold |
| EER | EEPROM Memory Error | Internal parameter memory checksum error on power-up | Corrupted non-volatile EEPROM memory | Reload factory default parameter set (C0002) and re-download configuration; replace unit if error persists |
Frequently Asked Questions
What software is used to program and back up the Lenze EVS9329-EP?
The Lenze EVS9329-EP is configured and programmed using Lenze Global Drive Control (GDC) software version 4.x or higher. Parameters can also be transferred directly using an optional EMZ9371BB keypad module.
What optional fieldbus modules can be installed in the EVS9329-EP automation slot?
The built-in automation slot accepts the EMF2131IB (PROFIBUS-DP), EMF2111IB (INTERBUS), and EMF2102IB (LECOM RS232/RS485) communication modules.
What does a solid red TRIP LED indicate on the front panel?
A solid red TRIP LED indicates an active fault condition where drive output power has been disabled. The exact trip code can be retrieved via parameter C0161, the EMZ9371BB keypad, or GDC software.
How do I resolve a CE0 fault code on the controller?
A CE0 fault indicates a CAN communication error or BUS OFF state. Check the CAN wiring, verify that 120-ohm termination resistors are installed at both network ends, and confirm matching baud rate settings.
Can internal hardware faults like H05 or H07 be serviced in the field?
Faults H05 and H07 indicate internal hardware defects or self-test failure upon initialization. These conditions are not field-serviceable and require drive repair or replacement.
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