Lenze EVS9327-ES 9300 Series 15kW Servo Drive Inverter
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Product Information
The Lenze EVS9327-ES is a 15 kW industrial servo drive inverter from the 9300 Servo series, engineered for high-dynamic motor control in automated production systems. Operating on a 320 to 528 V AC line supply, this IP20 cabinet-mounted unit delivers a continuous rated output current of 32 A with an output voltage range from 0 to 480 V AC and output frequencies up to 480 Hz. Designed around field-oriented vector control, the controller provides precise torque, speed, and positioning regulation across demanding applications in automotive manufacturing, packaging, textile processing, and printing lines. As part of the discontinued Lenze 9300 series, it functions as a direct drop-in replacement unit for existing production machinery requiring exact hardware and parameter matching.
To integrate into multi-axis and networked control environments, the drive features built-in System Bus (CAN) communication and a modular Automation Interface (AIF) expansion slot supporting fieldbus options such as PROFIBUS (EMF2133IB), LECOM (EMF2102IB), Interbus (EMF2113IB), and DeviceNet (EMF2173IB). Dedicated Sub-D interfaces handle motor feedback, including resolver input on X7, incremental or Sin/Cos encoder input on X8, and simulated encoder frequency output on X9 for master-slave drive synchronization. Standard control terminals provide digital and analog inputs and outputs alongside T1/T2 motor temperature monitoring interfaces. Commissioning a replacement unit requires restoring drive configuration parameters using Global Drive Control (GDC) software or a Keypad XT operating module (EMF2102IB). Because the unit stores up to four internal parameter sets, ABC Industrial Parts can assist with parameter extraction and data transfer from existing drives to ensure seamless service integration.
System status and operational states are displayed directly via front panel LEDs, where a green LED indicates operational readiness and a red LED signals active warning or TRIP conditions. Detailed diagnostics can be retrieved through the Keypad XT status menu, GDC online monitoring, or fieldbus registers, supported by an internal fault history buffer that retains up to eight historical fault events with operating hours and timestamps. First-line troubleshooting includes verifying input supply line voltages across L1, L2, and L3, checking feedback cabling on X7 and X8, and confirming proper 120-ohm termination resistors on the CAN bus. Persistent fault codes such as power stage short circuits (OC1), memory failure (EER), or internal microprocessor exceptions (PR0) indicate non-serviceable internal component failures; in such situations, sourcing a tested exchange unit from ABC Industrial Parts provides a fast path back to full production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVS9327-ES |
| Model / Type | 9300 Servo Inverter Standard |
| Product Family | 9300 Servo |
| Component Type | Servo Drive |
| Rated Power | 15 kW |
| Rated Current | 32 A |
| Supply Voltage Range | 320 - 528 V AC |
| Output Voltage Range | 0 - 480 V AC |
| Maximum Output Frequency | 480 Hz |
| Control Method | Field-oriented vector control |
| Protection Rating | IP20 |
| Onboard Fieldbus | System Bus (CAN) |
| Expansion Slot | Automation Interface (AIF) |
Programming and Configuration
Commissioning and parameterizing the Lenze EVS9327-ES is performed using Lenze Global Drive Control (GDC) engineering software or directly through the optional Keypad XT operating module (EMF2102IB). GDC software connects to the unit to provide an interface for drive parameterization, live oscilloscope recording, and project file management.
The drive internal memory accommodates up to four independent parameter sets. This memory architecture allows operators to maintain primary and secondary operational profiles or store complete backup configurations directly on the controller. When swapping out a drive, stored parameter sets can be uploaded from the old unit or transferred via the Keypad XT module into the replacement drive to eliminate manual configuration.
Communication and System Integration
Network communication on the EVS9327-ES is centered on an integrated System Bus (CAN) interface designed for high-speed multi-axis drive coupling. This onboard CAN functionality enables synchronized positioning, torque sharing, and speed matching across multiple drives in complex processing lines.
Broader integration into plant-wide automation systems is handled via the Automation Interface (AIF) expansion slot. This slot accepts modular fieldbus cards, including the EMF2133IB for PROFIBUS-DP, EMF2102IB for LECOM RS-232/RS-485, EMF2113IB for Interbus, and EMF2173IB for DeviceNet. External feedback interfaces include Sub-D connector X7 for resolvers, connector X8 for incremental or Sin/Cos encoders, and connector X9 for simulated frequency outputs sent to follower drives.
Diagnostics and Status Indication
Diagnostic monitoring on the EVS9327-ES combines front-panel LED status indicators with digital monitoring tools. Operational states and TRIP errors are signalled immediately by the status LEDs, while detailed system performance and fault logs are accessible through connected diagnostic software or keypad units.
The controller maintains an internal fault history memory that logs up to eight historical fault codes alongside operating hours and timestamps. Diagnostic registers and real-time status values can be monitored live using the Keypad XT display menu or online diagnostic windows within Global Drive Control software over CAN or fieldbus networks.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Green LED (Ready/Run) | Green - Off / Blinking / On | Operational status: Off = drive off/no voltage; Blinking = drive enabled/running or initializing; On = drive ready for operation |
| Red LED (Fault/Error) | Red - Off / Blinking / On | Trip/Warning state: Off = normal operation; Blinking = warning condition active; On = fault/TRIP condition active |
Replacement and Spare Part Considerations
When replacing an EVS9327-ES servo drive in existing machinery, power electrical specifications must be verified alongside physical cabinet placement. The unit requires a three-phase mains supply between 320 and 528 V AC and operates in an IP20 enclosure environment. Before installing a spare drive, confirm that any modular AIF fieldbus option cards (such as PROFIBUS or DeviceNet modules) are moved from the faulty unit into the replacement slot.
A replacement drive will not operate correctly until programmed with the machine's specific parameters. Save parameter sets from the original drive using GDC software or back them up using the Keypad XT module prior to unit removal. After mounting the replacement drive, upload the parameter file, verify feedback device connections at terminals X7 or X8, and inspect motor PTC thermistor wiring across terminals T1/T2 to prevent immediate trip faults upon power-up.
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 power output stages / motor terminals | Short circuit in motor cable, phase-to-phase fault, or damaged power semiconductors | Check motor and motor cables for short circuits or ground faults. If fault occurs immediately upon power-up without motor connected, internal power module is damaged — return unit for repair. |
| OC2 | Earth Fault | Ground fault detected on motor connection side | Insulation breakdown in motor winding or motor supply cable to ground | Inspect motor and wiring insulation using a megohmmeter. Check ground connection integrity. |
| OC5 | I*t Overload | I*t motor or drive overload threshold exceeded | Continuous over-current condition, acceleration time set too short, mechanical blockage | Check load mechanics for binding or overload; increase ramp-up times; check motor sizing. |
| OU | Overvoltage DC Bus | DC bus voltage limit exceeded | Deceleration ramp too steep, dynamic braking resistor missing or defective, high line supply surge | Extend deceleration times (QSP / deceleration ramp); check brake chopper operation and external braking resistor resistance/wiring. |
| LU | Undervoltage DC Bus | DC bus voltage fell below minimum allowable operating threshold | Mains supply line voltage drop, blown input fuse, main power lost | Verify 3-phase mains supply voltage and fuses. Check input power connections. |
| OH | Heatsink Overtemperature | Heatsink temperature exceeded threshold | Inadequate control cabinet cooling, dirty heatsink fins, internal fan failure, high ambient temperature | Clean heatsink cooling fins, check internal fan operation, lower cabinet temperature and check clear spacing around drive. |
| OH4 | Motor Overtemperature (PTC) | Motor temperature sensor trip via terminals T1/T2 | Motor thermal overload, cooling fan failure on motor, broken temperature sensor cable | Allow motor to cool; check motor load and forced ventilation fan; check motor sensor connection across T1/T2. |
| OH7 | Motor Thermal Model (I2t) | Calculated motor thermal load limit exceeded | Prolonged low-speed operation with high torque, wrong motor thermal parameters set | Check drive thermal protection settings (C0120/C0121); verify motor duty cycle. |
| LP1 | Mains Phase Failure | Phase loss on incoming AC supply lines | One incoming phase dropped out, blown supply fuse, loose line terminal screw | Check line supply voltage across all three incoming AC phases (L1, L2, L3) under load. |
| CE0 | AIF Communication Error | Communication failure between drive and plug-in AIF module | AIF fieldbus module loose, improperly seated, or damaged module hardware | Turn off power, re-seat AIF card in slot, replace AIF module if fault persists. Internal control board error if replacement card fails — return unit for repair. |
| CE1 | CAN System Bus Error (CAN-IN1) | Time-out or failure receiving process data object 1 via CAN system bus | Interrupted CAN line, incorrect baud rate, master node missing | Check CAN wiring, bus termination resistors (120 Ohm), network baud rate settings. |
| EER | EEPROM Read/Write Error | Internal EEPROM failure during boot or parameter save | Non-volatile memory corruption or hardware component failure | Perform factory default reset. Internal hardware fault — if error recurs, unit requires factory repair/replacement. |
| NMAX | Overspeed | Motor speed exceeded maximum limit threshold | Encoder/resolver slip, phase reversal, incorrect control loop gains, overhauling load | Check feedback sensor cable and mechanical coupling; check maximum speed parameter limits. |
| PR0 | Program Error 0 | Internal microprocessor software fault / fatal exception | Firmware crash or corrupted internal execution code | Internal control board error — cycle power. If persistent, reflash firmware or return unit for repair. |
| rEFE | Resolver Fault | Resolver signal loss or disturbance on interface X7 | Resolver cable disconnected, broken wire, electromagnetic interference on resolver lines | Inspect feedback cable connection at X7, verify shielding and grounding of resolver wiring. |
| Sd1 | Encoder Fault | Encoder signal track failure or missing pulses on interface X8 | Encoder cable defect, encoder supply voltage missing, encoder sensor head error | Check encoder cable and plug X8, measure encoder power supply voltage. |
Frequently Asked Questions
What software tools are required to program the Lenze EVS9327-ES?
The Lenze EVS9327-ES is programmed and configured using Lenze Global Drive Control (GDC) software. Alternatively, basic parameter changes and status monitoring can be handled directly using the plug-in Keypad XT (EMF2102IB) module.
How do I transfer parameters from a failed drive to a replacement unit?
Parameters can be extracted from the original unit using GDC software over a communication connection or copied onto a Keypad XT operating module. Up to four complete parameter sets can then be loaded directly into the replacement drive's internal non-volatile memory.
Which fieldbus communication protocols are supported?
The drive includes an onboard System Bus (CAN) interface. Additional fieldbus protocols are supported by installing optional AIF modules into the expansion slot, including PROFIBUS-DP (EMF2133IB), LECOM RS-232/RS-485 (EMF2102IB), Interbus (EMF2113IB), and DeviceNet (EMF2173IB).
What motor feedback sensors can be connected to the EVS9327-ES?
The EVS9327-ES features Sub-D connector X7 for resolver feedback and Sub-D connector X8 for incremental or Sin/Cos encoder feedback. Connector X9 provides a simulated encoder frequency output for drive synchronization.
What does fault code OC1 indicate on the drive display?
Fault code OC1 indicates a short circuit at the power output stages or motor connection terminals. If the fault trips immediately upon powering up without a motor connected, the internal power semiconductor module is damaged and the drive must be repaired or replaced.
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