Lenze EVS9328-ES 9300 Series 22 kW Servo Controller
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Product Information
The Lenze EVS9328-ES is a 22 kW servo positioning controller from the 9300 Servo series designed for high-dynamic motion control and positioning applications. Operating across a three-phase supply voltage range of 320 to 528 V AC, this unit delivers an output voltage from 0 to 480 V AC with a continuous rated output current of 47 A and a peak output current capability of 70.5 A for heavy dynamic acceleration. Housed in an IP20 enclosure for control cabinet mounting, the drive controls AC synchronous and asynchronous servo motors in packaging machinery, converting lines, material handling equipment, and automotive manufacturing systems.
For network integration and drive coordination, the EVS9328-ES incorporates an onboard CAN system bus operating up to 500 kbit/s alongside a flexible Automation Interface (AIF) slot. The AIF slot accommodates fieldbus expansion options such as the EMF2133IB PROFIBUS module and EMF2171IB CANopen module. Motor feedback is routed through an integrated resolver interface alongside encoder input and master frequency output channels. System commissioning and parameter management are executed via Lenze Global Drive Control (GDC) PC software or an optional EMF2102IB keypad module. Project configurations are held across four internal parameter sets and stored on a plug-in EEPROM parameter module, allowing settings to be physically transferred to a replacement unit without software re-downloads. ABC Industrial Parts can assist with parameter extraction and tested spare hardware to minimize system recovery time.
Diagnostics are provided through front panel LEDs, keypad displays, and the GDC software diagnostic buffer. A solid green LED indicates standard operating conditions, while a flashing green LED signifies a controller inhibit (CINH) state. A solid or flashing red LED indicates an active TRIP fault condition that requires a manual reset. Operational errors such as overcurrent (OC1, OC2), DC bus overvoltage (OU), undervoltage (LU), or resolver feedback failure (Sd7) allow for targeted troubleshooting of external wiring, power supply, or motor conditions. Unresolved memory failures (EER) or internal board faults (H05) indicate hardware failure, where securing a tested exchange unit or professional repair through ABC Industrial Parts provides a direct solution.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVS9328-ES |
| Model / Type | EVS9328-ES |
| Product Family | 9300 Servo |
| Component Type | Servo Controller |
| Rated Power | 22 kW |
| Supply Voltage Range | 320 - 528 V AC |
| Output Voltage Range | 0 - 480 V AC |
| Rated Output Current | 47 A |
| Peak Output Current | 70.5 A |
| Maximum Output Frequency | 600 Hz |
| Nominal Switching Frequency | 8 kHz |
| Digital Inputs | 8 |
| Digital Outputs | 4 |
| Analog Inputs | 2 |
| Analog Outputs | 2 |
| Integrated System Bus | CAN (500 kbit/s) |
| Protection Rating | IP20 |
Programming and Configuration
Programming and parameter management for the Lenze EVS9328-ES are completed using Lenze Global Drive Control (GDC) PC software or through the pluggable EMF2102IB keypad module. The software suite provides full control over position loops, velocity gains, I/O assignments, and internal status monitors over fieldbus or diagnostic serial connections.
The controller stores up to four independent parameter sets internally, allowing flexible configuration changes for multi-product machinery. Physical parameter backups are maintained via a removable plug-in EEPROM module. Transferring this EEPROM memory chip to another EVS9328-ES drive applies the complete set of saved parameters instantly without needing a direct PC connection.
Communication and System Integration
The EVS9328-ES incorporates a CAN system bus interface on terminal block X4 operating at transmission speeds up to 500 kbit/s. This bus enables direct high-speed cross-communication, multi-axis positioning synchronization, and velocity alignment between drives without burdening the primary line controller.
Expanded network communication is supported via the integrated Automation Interface (AIF) slot. This slot accepts dedicated fieldbus communication modules, including the EMF2133IB PROFIBUS module, EMF2171IB CANopen module, INTERBUS, and RS485 LECOM B interfaces. Control signals are wired locally through 8 digital inputs, 4 digital outputs, 2 analog inputs, and 2 analog outputs.
Diagnostics and Status Indication
Drive operational status and fault conditions are signaled through front-panel LED indicators, the optional EMF2102IB keypad display, and the GDC software diagnostic memory buffer. Green and red LEDs provide immediate visual state identification during operating and fault conditions.
The drive maintains an internal fault memory buffer storing recent TRIP codes. Detailed diagnostic parameters, status words, and live motor values can be analyzed over the CAN system bus or fieldbus networks to assist in rapid system troubleshooting.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Red LED (TRIP / Fault) | Red - Flashing or Solid | Active fault condition (TRIP active) requiring reset |
| Green LED (Operation / Ready) | Green - Solid or Flashing | Solid green indicates controller is enabled and operating normally; flashing green indicates controller inhibit (CINH) |
Replacement and Spare Part Considerations
When replacing an existing Lenze EVS9328-ES servo controller, confirm that the substitute unit matches the 22 kW power rating and 47 A continuous output rating. Fast drive recovery is achieved by physically removing the plug-in EEPROM parameter module from the faulty unit and installing it directly into the spare controller.
Verify that any required Automation Interface expansion cards, such as the EMF2133IB PROFIBUS module, are fully seated in the AIF slot of the replacement drive. Inspect the CAN bus wiring on terminal X4 to ensure correct polarity and confirm that 120 ohm line termination resistors are present at both ends of the CAN network. Check resolver connections at socket X7 prior to applying main power.
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 the power output terminals. | Short circuit in motor cable or motor winding; excessive output capacitive current. | Check motor and wiring for short circuits or ground faults. Inspect power stage. |
| OC2 | Earth Fault | Ground fault detected on output phase. | Ground fault in motor lead or motor frame; excessive ground leakage current. | Check motor insulation and motor cable for ground fault. |
| OC5 | Overcurrent Acceleration | Overcurrent during dynamic acceleration phase. | Acceleration dynamic limit set too high; motor overloaded; drive undersized. | Increase acceleration ramp time; check motor sizing and mechanical load. |
| OU | Overvoltage DC Bus | DC bus voltage exceeds upper limit. | Excessive regenerative energy during deceleration; braking resistor open or under-dimensioned. | Increase deceleration ramp time; check braking chopper and external brake resistor connection. |
| LU | Undervoltage DC Bus | DC bus voltage dropped below minimum threshold. | Mains supply failure or phase loss; supply voltage too low; momentary power interruption. | Check line supply voltage and input supply fuses/contactors. |
| OH | Heatsink Overtemperature | Drive heat sink temperature exceeded upper limit. | Inadequate cooling / fan failure; ambient temperature too high; clogged heat sink fins. | Clean cooling fins; check operation of internal cabinet fan; lower ambient temperature. |
| OH4 | Motor Overtemperature (PTC) | Motor temperature sensor trip. | Motor thermal overload detected by PTC or thermal switch connected to T1/T2 terminals. | Allow motor to cool down; check mechanical load for jamming; check cooling fan on motor. |
| OH7 | Interior Overtemperature | Interior ambient temperature of drive enclosure too high. | Excessive internal cabinet temperature; cooling airflow blocked. | Improve enclosure ventilation and check drive internal cooling. |
| OH8 | Motor Overtemperature (I²t) | Calculated motor thermal load limit reached. | Continuous operation at low speed under high torque overload. | Reduce continuous motor load or install forced motor cooling fan. |
| CE0 | Communication Error AIF | Communication fault on Automation Interface (AIF) slot. | AIF communication module disconnected, loose, or fieldbus network cable damaged. | Check seating of module in AIF slot; inspect fieldbus cables and termination resistors. |
| CE3 | System Bus Communication Error | CAN System Bus (X4) communication fault. | CAN bus wire interruption, wrong baud rate configuration, or missing line termination resistors. | Verify CANbus wiring, terminal connection on X4, baud rate setting, and 120 ohm end resistors. |
| EER | EEPROM Error | Internal EEPROM memory read or write failure. | Corrupted non-volatile parameter storage or defective internal/external EEPROM chip. | Re-initialize parameters to factory default. If fault persists, hardware failure — replace controller. |
| H05 | Internal Hardware Fault | Internal controller error detected during self-test. | Internal board failure or corrupted firmware. | Internal hardware fault — power cycle drive; if persistent, return unit for repair or replace. |
| LP1 | Mains Phase Failure | Phase failure detected on input mains. | Missing phase on mains supply; blown supply line fuse. | Check line voltage across all three incoming phases (L1, L2, L3) and fuses. |
| NMAX | Speed Over Limit | Actual motor speed exceeded maximum configured velocity limit. | Speed controller loop instability or overshooting load. | Tune speed controller parameters (gain/integral time); check position/resolver feedback. |
| Sd7 | Resolver / Feedback Failure | Resolver open circuit or signal defect detected. | Disconnected or damaged resolver cable; defective resolver sensor in motor. | Check resolver wiring harness to socket X7; check motor resolver stator/rotor resistance. |
Frequently Asked Questions
How are parameters copied to a replacement Lenze EVS9328-ES controller?
Parameters can be transferred by moving the physical plug-in EEPROM memory module from the original drive to the replacement unit. Alternatively, parameter sets can be uploaded and restored using Lenze Global Drive Control (GDC) PC software or the EMF2102IB keypad module.
Which communication option modules fit the EVS9328-ES drive?
The plug-in Automation Interface (AIF) slot supports optional communication cards including the EMF2133IB PROFIBUS module, EMF2171IB CANopen module, INTERBUS modules, and RS485 LECOM B interfaces.
What does a solid or flashing red LED indicate on the controller?
A red LED signals an active TRIP fault state. The specific error code should be identified using the EMF2102IB keypad display or the GDC software diagnostic buffer before attempting a fault reset.
What steps should be taken if fault code EER or H05 is displayed?
Fault code EER indicates an EEPROM memory defect, and H05 indicates an internal hardware failure detected during self-tests. If power cycling or parameter re-initialization does not clear the error, the unit has suffered an internal board failure and requires hardware repair or replacement.
What motor feedback devices are compatible with the EVS9328-ES?
The drive features a dedicated resolver feedback socket (X7) and supports incremental encoder signals and master frequency channels for closed-loop control of synchronous and asynchronous servo motors.
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