Lenze EVS9328-ESV004 9300 Series Servo Drive Controller 22kW
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Product Information
The Lenze EVS9328-ESV004 is a 22 kW panel-mount servo drive controller from the 9300 Servo series, engineered for dynamic multi-axis motion control, continuous material web handling, industrial gantry positioning, and automated packaging operations. Operating on a three-phase supply voltage ranging from 320 to 528 V AC, this IP20-rated inverter delivers a continuous output current of 47 A and a peak overload current of 70.5 A for up to 60 seconds. Utilizing high-performance field-oriented vector control at an 8 kHz switching frequency, it drives both synchronous and asynchronous servo motors with precision across an output voltage range of 0 to 480 V AC.
Commissioning a spare or replacement unit requires verifying hardware interfaces and transferring operational parameters. The V004 variant features an integrated Safe Stop (STO) safety function wired through terminal X11, removing the need for external safety contactors. Network integration relies on the onboard CAN-based system bus operating at 500 kbit/s, or optional fieldbus modules installed in the Automation Interface (AIF) slot, such as PROFIBUS-DP (EMF2133IB or EMF2131IB), INTERBUS, or LECOM modules. Motor feedback interfaces include terminal connectors for resolvers on X7, alongside TTL/HTL incremental encoders, Sin/Cos, SSI, or EnDat absolute encoders on connector X8. Drive setup and parameter restore—storing up to four independent parameter sets in non-volatile EEPROM—are managed through Lenze Global Drive Control (GDC) software via an EMF2177IB PC system bus adapter or an EMZ9371BC plug-in keypad module. Support from ABC Industrial Parts can assist in parameter extraction from donor units or configuration verification prior to energizing the machine.
Operating conditions and fault states are indicated by three front status LEDs: a green RUN LED for normal operation, a yellow IMP LED for pulse inhibit or safe stop status, and a red FAIL LED signaling an active TRIP condition. Detailed fault history is accessible via the keypad TRIP log or GDC software diagnostic registers and online oscilloscope. Typical field faults include mains undervoltage (LU), DC bus overvoltage (OU), motor short circuits (OC1), resolver feedback errors on connector X7 (Sd2), and CAN communication faults (CE1). External causes such as field wiring, terminal connections, or line voltage stability should be checked first. Internal hardware failures—including control board errors (H05), power section faults (H10), or internal bus communication errors (H11)—are non-field-serviceable; returning the faulty drive for repair or sourcing a tested exchange unit through ABC Industrial Parts provides a fast path to restoring production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVS9328-ESV004 |
| Model / Type | 9300 Servo Inverter |
| Rated Power | 22 kW |
| Supply Voltage Range | 320 - 528 V AC |
| Continuous Output Current | 47 A |
| Peak Output Current | 70.5 A |
| Output Voltage | 0 - 480 V AC |
| Switching Frequency | 8 kHz |
| Control Method | Field-oriented vector control |
| Digital Inputs | 6 |
| Digital Outputs | 4 |
| Analog Inputs | 2 |
| Analog Outputs | 2 |
| Protection Rating | IP20 |
Programming and Configuration
The EVS9328-ESV004 relies on Lenze Global Drive Control (GDC) software for programming, parameter adjustment, and drive configuration. Internal non-volatile EEPROM memory holds up to four independent parameter sets. This memory structure allows technicians to retain distinct configurations for motor characteristics, control loops, fieldbus communications, and digital/analog I/O setups directly on the drive.
Drive configuration can be performed online or offline. Interfacing a PC running GDC software to the drive requires an EMF2177IB PC System Bus Adapter operating via USB or CAN interface. Alternatively, direct local parameter entry and set transfers can be completed at the cabinet door using the plug-in EMZ9371BC keypad operating module. When commissioning a replacement inverter, parameter sets must be uploaded from existing machine backups or extracted from the original unit to match existing control logic.
Communication and System Integration
The Lenze EVS9328-ESV004 incorporates an onboard CAN-based System Bus interface operating at a fixed transfer rate of 500 kbit/s. This bus enables axis-to-axis synchronization and cross-communication between multiple Lenze drive controllers and higher-level automation components without requiring additional interface cards. The system bus handles motion commands, process data transmission, and real-time status exchange.
For integration into broader fieldbus networks, the drive features an integrated Automation Interface (AIF) expansion slot. This slot accepts option cards such as the EMF2133IB and EMF2131IB PROFIBUS-DP modules, as well as INTERBUS and LECOM RS232/RS485 interface cards. Hardware I/O signals connect directly via control terminals, offering 6 digital inputs, 4 digital outputs, 2 analog inputs, and 2 analog outputs.
Diagnostics and Status Indication
Real-time operational status is displayed directly on the drive's front panel using three indicator LEDs. The green RUN LED signals that the controller is active and ready for operation. The yellow IMP LED indicates pulse inhibit status, confirming that the output power stage is disabled due to controller inhibit or active Safe Stop (STO). The red FAIL LED lights up continuously when an active TRIP fault is detected, halting drive output to protect connected equipment.
Detailed diagnostics are accessible via the plug-in EMZ9371BC keypad, which maintains a TRIP history log complete with fault codes and timestamps. Technicians can also use Lenze Global Drive Control (GDC) software to access internal status registers and run an online diagnostic oscilloscope for signal analysis and system tuning during operational fault finding.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Red LED (FAIL) | Red - Active / Solid | Active fault state / TRIP condition present. Internal or external drive fault detected. |
| Yellow LED (IMP) | Yellow - Active / Solid | Pulse inhibit active (controller inhibit / drive output disabled). Normal standby or safe stop active. |
| Green LED (RUN) | Green - Active / Solid | Drive controller operational / ready for operation. |
Replacement and Spare Part Considerations
When replacing an EVS9328-ESV004, confirm that the replacement drive carries the identical V004 variant designation. The V004 designation denotes the presence of integrated Safe Stop (STO) hardware terminals at position X11. Installing a standard 9300 series drive without the V004 integrated safety feature into a panel designed for STO operation will disrupt the machine's safety circuit.
A replacement unit delivered from storage contains default parameters and will not operate the motor automatically. Parameters must be downloaded to the drive's internal non-volatile EEPROM via Global Drive Control (GDC) software or copied locally using the EMZ9371BC keypad module. Any option card in the Automation Interface (AIF) slot—such as a PROFIBUS-DP module—must be physically transferred from the existing unit to the replacement drive.
Although the Lenze 9300 Servo series has been officially discontinued by the manufacturer, direct replacement units remain essential for maintaining existing production equipment. Migration options to newer platforms like the Lenze i700 or i950 cabinet servo inverters are available for full system redesigns, but replacing the unit directly avoids software modifications and panel wiring alterations.
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 power stage output. | Motor cable short circuit, motor winding failure, inter-turn short circuit, short circuit in braking resistor. | Check motor cable and motor windings for short circuit. Inspect braking resistor wiring. |
| OC2 | Earth Fault | Earth fault / ground fault detected on motor output channels. | Ground fault in motor wiring, damaged insulation in motor winding, excessive cable capacitance. | Check motor cables and motor insulation resistance to earth using insulation test. |
| OC5 | Ixt Overload | Drive controller power stage Ixt thermal overload. | Drive loaded beyond continuous output current rating for too long, mechanical overload, acceleration ramp too short. | Reduce drive load, extend acceleration time, or select larger drive inverter. |
| OU | DC Bus Overvoltage | DC bus voltage exceeds maximum upper safety threshold. | Excessive regenerative energy from motor during deceleration, braking chopper non-functional, brake resistor open circuit or incorrectly dimensioned. | Increase deceleration time, check braking resistor connection and resistance value, check internal braking chopper. |
| LU | DC Bus Undervoltage | DC bus voltage dropped below minimum operating limit. | Mains supply voltage too low, mains phase failure, line power interruption, DC bus fuse blown. | Check supply mains voltage and phase balance. Inspect fuses and mains connections. |
| OH | Heatsink Overtemperature | Inverter heatsink temperature exceeds maximum allowed limit. | Inadequate cooling airflow, cabinet fan failure, clogged heat sink, ambient temperature too high. | Clean heatsink cooling fins, verify control cabinet ventilation and internal fan operation. |
| OH4 | Motor Overtemperature | Motor thermal sensor (PTC / thermal contact) triggered. | Motor overloaded, insufficient motor cooling, motor fan defective, sensor wire disconnected. | Allow motor to cool down, inspect load and motor fan, check temperature sensor wiring at control terminals. |
| OH7 | Interior Overtemperature | Interior cabinet/housing temperature of drive controller too high. | Control cabinet cooling inadequate, excessive ambient heat. | Improve enclosure ventilation and cooling system. |
| OH8 | Motor Temp Sensor Open / Short Circuit | Motor temperature sensor circuit fault detected. | Wire break or short circuit in motor PTC/TK wiring. | Inspect motor temperature sensor cable and connection to terminals. |
| CE0 | AIF Communication Error | Communication failure on Automation Interface (AIF) slot module. | Loose fieldbus option module, fieldbus master failure, cable break on fieldbus line. | Verify seating of option card in AIF slot, check fieldbus network cabling and master controller status. |
| CE1 | CAN System Bus Error | Communication fault on integrated CAN System Bus interface. | System bus cable disconnected, incorrect termination resistor, incorrect baud rate or node ID settings. | Check CANbus wiring, terminating resistors (120 Ohm), baud rate, and node address configuration. |
| CE2 | CAN RX Overflow | Receive buffer overflow on CAN system bus. | Excessive message load on CAN bus network, invalid network topology. | Optimize CAN bus message transmission cycles and network structure. |
| CE3 | CAN Bus-Off State | CAN controller entered Bus-Off state due to excessive transmission errors. | Severe electromagnetic interference on CAN line, improper shield grounding, damaged transceiver. | Check CAN shield grounding, noise suppression, and physical CAN wiring connections. |
| EER | EEPROM Fault | Internal EEPROM checksum or memory write/read error. | Internal parameter memory corrupt or hardware EEPROM chip damaged. | Reload parameter set to factory defaults or restore project file. If persistent, internal board failure requiring factory repair. |
| NMAX | Speed Limit Exceeded | Motor speed exceeded maximum configured safety limit. | Incorrect feedback setup, field-weakening instability, overspeed condition. | Check speed feedback configuration, resolver/encoder setup, and speed limits in parameter settings. |
| Sd2 | Resolver Fault | Signal loss or line break detected on resolver input (X7). | Resolver cable disconnected, broken wire, damaged resolver winding. | Check resolver connector X7, test resolver cabling and motor feedback resolver coils. |
| Sd3 | Encoder Signal Fault | Fault detected on incremental encoder signals (X8). | Encoder track A or B missing, bad connection, cable broken. | Inspect encoder cable and connector X8. Verify encoder supply voltage. |
| Sd5 | Track Envelope Fault | Encoder signal track envelope / amplitude out of valid range. | Damaged encoder, loose connector, severe signal distortion. | Inspect encoder wiring and replace encoder if internal signal generator failed. |
| Sd6 | Absolute Encoder SSI Fault | Communication fault or frame error with absolute encoder via SSI interface. | SSI cable interference, incorrect baud rate, broken clock/data line. | Verify SSI encoder settings, shielding, and wiring connections at connector X8. |
| H05 | Internal Hardware Error | Internal control board self-test or hardware fault detected. | Internal electronic failure on main board or control board. | Internal hardware fault — non-field-serviceable, return unit for repair or replace device. |
| H10 | Internal Power Section Fault | Internal failure detected in power module / gate driver power supply. | Power card electronic failure, damaged gate driver circuit. | Internal hardware fault — return unit for repair or replace device. |
| H11 | Internal Control Card Fault | Internal communication failure between control card and power section. | Internal ribbon cable/connector failure or control board defect. | Internal hardware fault — return unit for repair or replace device. |
Frequently Asked Questions
What software and adapter are required to connect to the Lenze EVS9328-ESV004?
Connecting a PC to the EVS9328-ESV004 requires Lenze Global Drive Control (GDC) software combined with an EMF2177IB PC System Bus Adapter (USB/CAN). Alternatively, parameter sets can be adjusted using an EMZ9371BC plug-in keypad module.
What does the V004 suffix mean on the EVS9328-ESV004 part number?
The V004 variant indicates that the drive controller is equipped with integrated Safe Stop (STO / Safe Torque Off) safety functionality, wired through control terminal X11.
How can the drive be integrated into a PROFIBUS-DP network?
PROFIBUS-DP communication is established by inserting an optional AIF fieldbus card, such as the EMF2133IB or EMF2131IB, into the drive controller's Automation Interface slot.
What does a solid red FAIL LED indicate on the drive front panel?
A solid red FAIL LED indicates an active TRIP condition. The exact fault code can be identified by checking the keypad TRIP history log via an EMZ9371BC module or reading internal fault registers using GDC software.
What steps are necessary to get a spare EVS9328-ESV004 running in an existing machine?
Installing a spare drive requires verifying that the replacement has the V004 STO configuration, moving any plugged AIF fieldbus option card from the old drive, reconnecting motor feedback on X7 or X8, and downloading the correct parameter set into the non-volatile EEPROM.
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