Lenze EVS9328-EK 9300 Servo Cam Profiler Controller 22kW
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Product Information
The Lenze EVS9328-EK is a 22 kW digital servo drive controller within the Lenze 9300 Servo family, specifically designed as a 9300 Servo Cam Profiler. Built around a compact IP20 enclosure, this unit incorporates cold-plate cooling technology (indicated by the -EK suffix) to direct thermal dissipation to external heatsinks or liquid cooling circuits, minimizing control cabinet depth. Operating on a 3-phase supply voltage from 320 V AC to 528 V AC at 50/60 Hz, the controller generates a continuous output current of 47 A at an 8 kHz switching frequency, with dynamic peak current capability up to 70.5 A for up to 60 seconds. Its integrated electronic cam profiler allows precise motion profiling and multi-axis synchronization, replacing complex mechanical linked drive systems in high-speed machinery.
Field connection points on the unit include Sub-D interfaces for system bus communication, resolver feedback on connector X7, and incremental encoder feedback or simulation on connector X8. The front Automation Interface (AIF) slot provides flexible fieldbus integration, accommodating plug-in modules such as PROFIBUS-DP (EMF2133IB), DeviceNet (EMF2175IB), or EtherNet/IP (EPL10200), as well as the Keypad XT (EMF2102IB) operating interface. Placing a spare unit into service requires parameter transfer (PAR1 through PAR4) and electronic cam profile table downloads via Lenze Global Drive Control (GDC) software using a USB-to-CAN adapter (EMF2177IB). ABC Industrial Parts provides technical assistance and replacement hardware to ensure smooth parameter restoration and system commissioning.
Visual status diagnostics are displayed through three status LEDs on the front panel: LED 1 (Green) for drive state, LED 2 (Red) for TRIP faults, and LED 3 (Yellow) for warnings. Detailed operational fault conditions—such as DC bus undervoltage (LU), DC bus overvoltage (OU), cam profile table errors (PR0), or CAN bus communication errors (CE1)—can be read via the Keypad XT or GDC software. First-line field checks should cover input supply lines, cold-plate thermal grease application, motor temperature sensor wiring on terminal X10, and fieldbus termination resistors. Internal component failures, such as code H05 or unrecoverable memory errors, require professional board-level service or a replacement drive available from ABC Industrial Parts.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVS9328-EK |
| Model / Type | 9300 Servo Cam Profiler |
| Component Type | Servo Controller |
| Product Family | 9300 Servo |
| Rated Power Output | 22 kW |
| Supply Voltage Range | 320 - 528 V AC (3-Phase) |
| Continuous Output Current | 47 A |
| Peak Output Current | 70.5 A (150% for 60 s) |
| Output Frequency Range | 0 - 480 Hz |
| Switching Frequency | 8 kHz |
| Power Dissipation | 600 W |
| Cooling Method | Cold-Plate Technology |
| Ingress Protection Rating | IP20 |
Programming and Configuration
Lenze Global Drive Control (GDC) software acts as the primary commissioning and parameterization tool for the EVS9328-EK servo controller. Through GDC, parameters across four independent internal parameter sets (PAR1 through PAR4) are configured, allowing customization of dynamic loop gains, acceleration ramps, and current limits. Connection between a PC running GDC and the drive controller is established using the Lenze USB-to-CAN adapter (EMF2177IB) connected to the system bus interface.
For motion applications requiring electronic camming, motion curves and cam profile tables are created and managed within GDC before being uploaded into the unit's non-volatile internal EEPROM. Direct handheld parameter editing and drive status checks can also be performed without a PC by attaching the Keypad XT module (EMF2102IB) directly to the front Automation Interface slot. Proper configuration upload is required when installing a replacement drive to avoid cam profile table mismatch trips such as fault code PR0.
Communication and System Integration
System integration for the Lenze EVS9328-EK relies on the built-in CAN system bus interface accessed via Sub-D connection X4. Supporting standard CANopen protocols, this interface enables multi-drive networking, master/slave frequency bus distribution, and synchronized cross-axis motion control without relying on external motion controllers.
Broader fieldbus compatibility is supported through the front plug-in Automation Interface (AIF) slot. The drive accepts various network interface cards, including the EMF2133IB for PROFIBUS-DP, the EMF2175IB for DeviceNet, and the EPL10200 for EtherNet/IP networks. Feedback interfaces include Sub-D connector X7 for resolver connection and connector X8 for incremental encoder feedback and pulse simulation output.
Diagnostics and Status Indication
The EVS9328-EK provides immediate operational status via three front-panel LED indicators and diagnostic codes accessible through the Keypad XT module or GDC software. Diagnostic codes C0168 and C0170 allow technicians to review active and historical fault codes, while control terminal monitoring verifies the real-time logic state of digital and analog I/O lines.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| LED 1 (Green) | Green - Solid or Blinking | Operational state. Continuous light indicates drive operational/controller enable active; blinking indicates drive ready/pulse inhibit active. |
| LED 2 (Red) | Red - Solid or Flashing | TRIP/Fault indicator. Flashing or continuous light indicates active fault condition. Continuous illumination without drive response indicates potential internal hardware error. |
| LED 3 (Yellow) | Yellow - Flashing | Warning indicator. Flashing indicates warning active or pulse inhibit warning state. |
Replacement and Spare Part Considerations
When swapping a damaged unit with a replacement Lenze EVS9328-EK, attention must be given to physical mounting and thermal management. The cold-plate design (-EK suffix) relies on flat, clean contact with an external heatsink or liquid cooler. Thermal paste must be applied evenly across the rear cold-plate surface to prevent immediate overtemperature trips under high load.
A replacement controller cannot function in machine production without uploading original application parameters. The parameter sets (PAR1–PAR4) and electronic cam tables must be extracted from a backup or donor unit and transferred to the replacement drive via Lenze GDC software. Additionally, fieldbus communication cards (such as PROFIBUS EMF2133IB or EtherNet/IP EPL10200) must be swapped into the replacement unit's AIF slot, and network node address switches must be set to match the original unit.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| C013 | EEPROM Error | Error occurred during parameter reading/writing in internal EEPROM memory. | Faulty internal memory module or corrupted parameter data during save operation. | Reload factory default settings (C0002 = 1) or restore parameters from backup. If fault persists, internal board failure requiring unit repair/replacement. |
| LU | Undervoltage DC Bus | DC bus voltage dropped below lower threshold level (< 430 V DC). | Mains voltage too low, mains phase failure, or supply interruption. | Check main AC power line voltage and supply circuit breakers. |
| OU | Overvoltage DC Bus | DC bus voltage exceeded maximum threshold level (> 770 V DC). | Excessive regenerative energy during deceleration, brake chopper resistor missing or defective. | Extend deceleration ramp time, check braking chopper circuit and external brake resistor connection. |
| OC1 | Short Circuit / Overcurrent | Short circuit or extreme pulse current overload detected at motor output terminals. | Short circuit in motor cable, phase-to-phase short, motor insulation failure, or defective output power section. | Inspect motor cabling and motor winding resistance. If fault occurs with motor disconnected, internal hardware fault — replace or repair unit. |
| OC2 | Earth Fault | Ground fault detected on motor phase outputs. | Motor cable earth leakage, moisture in motor connector, or damaged motor winding insulation. | Check motor and power wiring for grounding/earth insulation faults using megohmmeter. |
| OC5 | I x t Overload | Drive controller continuous current overload limit reached. | Mechanical overload, drive undersized for acceleration requirements, motor binding. | Reduce acceleration rates, check mechanical load for binding, or verify drive sizing. |
| OH | Heatsink Overtemperature | Cold-plate / heatsink temperature exceeds maximum allowable threshold (> 85 °C). | Inadequate cooling heat sink contact, missing thermal grease, cabinet cooling fan failure, excessive ambient temperature. | Inspect cold-plate mounting surface contact, verify thermal interface paste application, and check panel cooling performance. |
| OH4 | Motor Overtemperature | Motor thermal sensor triggered overtemperature warning/trip via terminal X10. | Motor overloaded, insufficient motor cooling fan airflow, or PTC sensor cable fault. | Allow motor to cool down, check motor load and cooling fan, verify sensor connection at X10. |
| OH7 | Internal Drive Overtemperature | Internal temperature sensor inside control housing exceeded 70 °C. | Ambient cabinet temperature too high or fan inside drive defective. | Improve enclosure ventilation and ambient cooling. |
| OH8 | Motor Thermal Sensor Open Circuit | Open circuit / broken wire detected on motor PTC / thermal contact input X10. | Broken cable to motor thermal contact or loose wire terminal. | Check cable continuity between motor temperature sensor and connector X10. |
| CE0 | AIF Communication Error | Communication failure between controller and plug-in automation module in AIF slot. | Fieldbus module loose, noisy bus connection, or defective communication card. | Check module seating in slot, verify fieldbus connections, replace AIF module. |
| CE1 | System Bus (CAN) Error 1 | CAN system bus communication interruption or bus-off error detected on X4. | Missing bus termination resistor (120 Ohm), damaged CAN cable, or baud rate mismatch. | Check CAN cabling, termination resistors on both ends of bus, and node addresses. |
| H05 | Internal Hardware Fault | Unrecoverable hardware error detected during internal self-test. | Internal power supply circuit, control board component failure, or gate driver fault. | Internal hardware failure — return unit for repair or replace unit. |
| PR0 | Cam Profile Error | Cam profile data corruption or invalid cam table configuration. | Incomplete cam profile uploaded or corrupted cam profile table index. | Re-download valid cam profile configuration via Lenze GDC software. |
| Sd2 | Resolver Fault | Resolver signal feedback lost or magnitude out of limits on connector X7. | Resolver cable damaged, loose connector, or defective resolver transducer. | Inspect resolver wiring shield and continuity on X7 pinout. |
| Sd3 | Encoder Channel Fault | Track failure or missing pulses on incremental encoder feedback X8. | Encoder supply voltage failure, cable fracture, or corrupted encoder tracks. | Check encoder cable and supply voltage, replace encoder if signals corrupted. |
Frequently Asked Questions
What software and interface cable are required to program the Lenze EVS9328-EK?
Programming and parameter management require Lenze Global Drive Control (GDC) software connected via a Lenze USB-to-CAN adapter (EMF2177IB) plugged into the CAN system bus connector X4. Alternatively, basic parameters can be set using the Keypad XT module (EMF2102IB) inserted into the AIF slot.
What does the cold-plate (-EK suffix) design require during physical installation?
The cold-plate construction requires direct flat mounting against an external thermal cooling surface or liquid-cooled heat sink with thermal interface paste applied. Operating the drive without adequate external heatsinking will cause rapid thermal overload and trigger trip code OH.
Can I swap an EVS9328-EK directly without transferring software parameters?
No, a replacement unit will not control machine motion directly out of the box. Parameter sets (PAR1 through PAR4) and electronic cam profiles must be loaded into the internal EEPROM using Lenze GDC software or restored from a Keypad XT backup.
What should I check if fault code CE1 appears on the drive?
Fault code CE1 indicates a CAN system bus failure on connector X4. Inspect the CAN bus cabling for physical damage, verify node address settings, and ensure 120-Ohm termination resistors are fitted at both physical ends of the CAN bus network.
What does code H05 indicate on the EVS9328-EK?
Fault code H05 indicates an unrecoverable internal hardware error detected during internal self-tests. This points to a board-level hardware failure that requires factory repair or unit replacement.
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