Lenze EVS9325-EP 9300 Servo Position Controller 5.5 kW
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Product Information
The Lenze EVS9325-EP is an integrated 5.5 kW servo position controller from the 9300 Servo series, combining power conversion and motion positioning control in a single compact drive unit. Designed for point-to-point axis positioning, profile generation, packaging machine feed drives, and dynamic material handling systems, the controller operates on a 3-phase mains supply between 320 V and 528 V AC, or a DC link supply ranging from 460 V to 740 V DC. It provides a continuous output current of 13 A at an 8 kHz switching frequency, with a 150% peak overload capacity that delivers up to 19.5 A for up to 60 seconds to support high acceleration phases and demanding machine duty cycles.
Interfacing with external machinery relies on dedicated feedback inputs and modular communication options. Motor position feedback is handled through Sub-D resolver connections as well as incremental encoder and SinCos feedback support, making it directly compatible with Lenze 4-pole AC servo motors. Commissioning a replacement unit requires transferring the parameter set, positioning task tables, and motion scaling factors stored on the original drive. Parameter transfers are executed using Lenze Global Drive Control (GDC) software or copied directly using a plug-in Keypad XT module. When parameter extraction from a donor unit or offline backup is needed, ABC Industrial Parts offers expert support to help retrieve configuration data and prepare spare hardware for rapid installation.
On-board diagnostics are indicated through status LEDs for operational readiness, pulse inhibition, and trip conditions, alongside digital TRIP alarm contacts and CAN status registers. First-line troubleshooting involves checking 3-phase incoming power, DC bus voltage, external brake resistor wiring, and resolver connections on Sub-D terminals X7, X8, or X9. Certain internal fault conditions, such as microcontroller processing errors or internal power stage failures, cannot be serviced in the field; in these scenarios, exchanging the board or acquiring a fully tested replacement through ABC Industrial Parts provides the fastest route back to production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVS9325-EP |
| Model / Type | 9300 Servo Position Controller |
| Component Type | Servo Controller |
| Product Family | 9300 Servo |
| Rated Power | 5.5 kW |
| Mains Supply Voltage Range | 320 – 528 V AC |
| DC Bus Voltage Range | 460 – 740 V DC |
| Continuous Output Current | 13 A |
| Maximum Output Current (60 s) | 19.5 A |
| Switching Frequency | 8 kHz |
| Power Dissipation | 220 W |
Programming and Configuration
The Lenze EVS9325-EP utilizes Lenze Global Drive Control (GDC) software as its primary engineering tool for offline drive parameterization, positioning program creation, and dynamic testing. Through GDC, technicians can establish motion profile parameters, positioning task sequences, axis scaling factors, and speed controller gains. The software also provides real-time online diagnostic windows to monitor speed, current, position registers, and internal drive state flags.
For direct machine-side operation without a PC, the controller supports plug-in keypad modules such as the Keypad XT (EMF2101IB / 9371BB). The Keypad XT allows field personnel to adjust drive parameters, view numerical status codes, inspect the fault history buffer, and perform complete parameter set transfers. Standard default parameters can be reloaded using parameter code C0002 when resetting a drive to its factory baseline prior to uploading machine-specific positioning tasks.
Communication and System Integration
System integration with higher-level PLCs and motion networks is facilitated through an integrated CAN/CANopen system bus interface built into the EVS9325-EP architecture. This bus supports standard parameterization, control word distribution, and real-time register access across networked drive systems.
For integration into other industrial fieldbus networks, the unit features an Automation Interface (AIF) expansion slot. This slot accepts optional plug-in modules, including PROFIBUS-DP modules (EMF2133IB / EMF2131IB), INTERBUS modules, and serial LECOM modules. The active communication protocol and network speed are governed by the specific AIF card installed in the slot.
Diagnostics and Status Indication
Visual status diagnostics on the front face of the EVS9325-EP are provided by three LEDs indicating general readiness, pulse inhibit state, and trip fault conditions. Keypad XT status displays provide alphanumeric diagnostic codes and fault memory logs, while the GDC software offers full real-time drive status monitoring.
Critical system alarms are also communicated via a hardware TRIP relay contact output and CAN bus system status registers, allowing external supervisory controllers to immediately detect trip conditions or interlock events.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Ready | Green - Solid / Blinking | Green lit continuously indicates controller operational/ready state; green blinking indicates pulse inhibit active. |
| IMP / Pulse Inhibit | Yellow - Solid | Power output stage pulses are inhibited (controller disabled or quickstop active). |
| Trip / Fault | Red - Solid / Flashing | Red lit indicates an active fault (Trip condition). Fast red blinking indicates a warning or lock condition. |
Replacement and Spare Part Considerations
When replacing an EVS9325-EP unit, matching the exact part number and power rating is necessary to maintain full thermal and mechanical capability. Although physical mechanical mounting and main power terminals match across the 9300 Servo family, the unit must be properly configured with the exact machine motion parameters, application profiles, and feedback settings prior to operation.
It is critical to swap or transfer any plug-in AIF communication modules (such as PROFIBUS EMF2133IB / EMF2131IB) from the old controller to the spare drive, verifying that card seating and bus addresses match the original panel layout. Parameter backup sets should be uploaded via GDC software or loaded via the Keypad XT module. In the event of EEPROM corruption (fault EER) or hardware component failure (fault H05), field repairs cannot be conducted on internal circuit boards, making replacement with a functional spare unit necessary.
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 output phases or excessive overcurrent peak. | Motor cable short circuit, inter-turn fault in motor, excessive acceleration time too short. | Check motor wiring and insulation, test motor windings, increase acceleration time. If persistent with motor disconnected, internal power section is damaged (replace unit). |
| OC2 | Earth Fault | Ground fault / earth fault detected in motor phases or motor supply cable. | Ground fault in motor winding or motor cable shield/conductor contact to ground. | Check motor wiring for ground faults, test insulation resistance of motor windings. |
| OC5 | I x t Overload | Drive loaded continuously above rated current threshold (I x t limit exceeded). | Mechanical overload, drive undersized, continuous operation above continuous current rating. | Reduce mechanical load, verify motor and drive sizing, check machine mechanics for binding. |
| OH | Heatsink Overtemperature | Drive heatsink temperature exceeded maximum permissible limit (>85 °C). | Inadequate control cabinet cooling, clogged heatsink or fan failure, ambient temperature too high. | Clean heatsink, verify control cabinet fan and ambient temperature, ensure adequate clearance. |
| OH4 | Motor Overtemperature (Sensor) | Motor thermal sensor (PTC/KTY) connected to control terminals detected overtemperature. | Motor continuous overload, cooling fan failure on motor, open circuit in temperature sensor line. | Allow motor to cool, verify motor loading and motor cooling fan, check sensor connection wire. |
| OH7 | Motor Thermal Overload (I2t) | Calculated motor I2t thermal model overload threshold reached. | Motor operating continuously at low speed under high torque, wrong thermal motor data configured. | Check motor load and low-speed duty cycle, verify motor parameters in drive configuration. |
| OU | DC Bus Overvoltage | DC bus voltage exceeded upper limit threshold (~800 V DC). | Excessive regenerative energy from motor deceleration, missing or broken brake resistor, deceleration time too short. | Increase deceleration ramp time, check brake chopper and external brake resistor connection. |
| LU | DC Bus Undervoltage | DC bus voltage dropped below minimum operating limit (~430 V DC). | Mains supply failure, phase loss, power supply brownout, DC link fuse blown. | Check mains line voltage, line fuses, and supply switching devices. |
| NMAX | Speed Limit Exceeded | Motor speed exceeded programmed maximum allowable speed limit. | Speed controller gain incorrectly set, motor feedback device failure, runaway condition. | Verify speed controller parameters, check encoder/resolver signal wiring and stability. |
| SD2 | Resolver Fault | Resolver signal loss or track fault on feedback connector X7. | Disconnected resolver cable, damaged resolver wiring, damaged resolver feedback circuit. | Check X7 cable connection and shield ground, measure resolver winding resistance. Internal hardware fault on board requires drive replacement. |
| SD3 | Encoder Signal Fault | Encoder signal track failure or missing pulses on X8/X9 interface. | Encoder cable broken, loose shield, faulty encoder supply failure. | Check encoder cable and connector seats, check 5V/15V encoder power supply. |
| LP1 | Mains Phase Failure | One phase missing on incoming AC mains power supply line. | Blown main fuse, open phase contractor, severe line unbalance. | Check line voltage across all three supply phases L1, L2, L3. |
| EER | EEPROM Fault | Internal EEPROM memory read/write error or corrupted parameter set. | Power lost during parameter write operation, EEPROM chip hardware failure. | Reload factory default settings (C0002) and re-download parameter file. If persistent, internal board failure requiring return for repair. |
| H05 | Internal Hardware Fault | Internal micro-controller or power board processing fault detected. | Internal board component failure, power supply board defect. | Internal failure — not field-serviceable. Replace drive unit or send for factory repair. |
| PR0 | Program Error | Position controller program execution fault or invalid positioning task program. | Corrupted positioning task table, invalid target address or task sequence. | Check positioning task parameters and program blocks using GDC. |
| CE0 | AIF Communication Error | Communication failure between drive control board and plug-in AIF fieldbus module. | Module loose in slot, fieldbus connection failure, faulty communication module. | Re-seat communication module in slot, verify fieldbus cable and termination resistors. |
Frequently Asked Questions
What software is required to configure the Lenze EVS9325-EP?
The drive is configured using Lenze Global Drive Control (GDC) software over a PC interface. Parameter sets can also be uploaded, modified, and saved directly using an optional plug-in Keypad XT module (EMF2101IB / 9371BB).
Can I swap an EVS9325-EP drive directly without transfer of parameters?
No. A replacement unit must be loaded with the machine's specific motion parameters, positioning task tables, axis scaling factors, and communication settings before being put into service.
How do I resolve an SD2 fault on the EVS9325-EP?
An SD2 fault indicates resolver signal loss or track failure on feedback connector X7. Check the resolver cable connection and shield ground, and test resolver winding resistance. If wiring is intact and the fault persists, internal feedback board circuitry is damaged, requiring drive replacement.
What communication interfaces are supported by the AIF slot?
The Automation Interface (AIF) expansion slot supports optional plug-in modules, including PROFIBUS-DP (EMF2133IB / EMF2131IB), INTERBUS, and LECOM modules.
What action should be taken when an H05 error appears?
An H05 fault indicates an internal microcontroller or power board hardware failure. This internal fault is not field-serviceable, and the drive unit must be replaced or sent for board-level repair.
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