Lenze EVS9325-EK 9300 Servo Cam Profiler Controller
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Product Information
The Lenze EVS9325-EK is a 5.5 kW servo controller from the 9300 Servo family, designated as a Servo Cam Profiler with an IP20 protection rating. Designed to handle demanding motion control tasks, this drive operates on a 3-phase supply voltage ranging from 320 V AC to 528 V AC. It delivers a continuous output current of 13 A at an 8 kHz switching frequency, with a 150% peak overload capability up to 19.5 A for 60 seconds. The integrated electronic cam profiler functionality replaces complex mechanical cam arrangements with software-driven motion curves in applications such as packaging machines, flying saws, rotary cutters, and labeling equipment.
Interfacing the controller with machine electronics relies on dedicated terminals and communication interfaces, including terminal X7 for resolver feedback and an integrated CANopen system bus operating at speeds up to 500 kbit/s on terminal X14. For broader fieldbus integration, the unit features an Automation Interface (AIF) expansion slot supporting plug-in modules such as the EMF2133IB PROFIBUS-DP or EMF2102IB RS-232/485 LECOM modules. Installing a replacement unit requires transferring stored motion profiles, parameter sets, and network settings using Lenze Global Drive Control (GDC) software version 4.x or an EMZ9371BC Keypad XT operating module. Because the internal EEPROM holds up to four parameter sets along with electronic cam tables, spare units require parameter loading and configuration alignment before operation. ABC Industrial Parts can assist with extracting parameter sets or verifying spare unit settings to streamline commissioning.
Diagnostic conditions are indicated through front-panel status lights and digital monitoring tools. The DRIVE Green LED displays controller enable status and operational state, while the DRIVE Red LED signals active TRIP faults or pulse warnings. Detailed diagnostics are accessible via the Keypad XT error history memory in parameter C0168 or live status monitoring and oscilloscope functions in GDC software. Internal hardware errors, such as power stage failures or memory corruption indicated by fault code H05, are not field-serviceable. In these scenarios, sourcing a tested exchange unit or utilizing repair services through ABC Industrial Parts provides a direct path to restoring machine operation.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVS9325-EK |
| Model / Type | 9300 Servo Cam Profiler |
| Component Type | Servo Controller |
| Rated Power | 5.5 kW |
| Supply Voltage Range | 320 V AC to 528 V AC |
| Continuous Output Current | 13 A |
| Maximum Output Current | 19.5 A (150% for 60 s) |
| Switching Frequency | 8 kHz |
| Maximum Output Frequency | 480 Hz |
| Protection Rating | IP20 |
| Integrated System Bus | CANopen |
| System Bus Speed | 500 kbit/s |
Programming and Configuration
Parameterization and motion profile configuration for the Lenze EVS9325-EK are performed using Lenze Global Drive Control (GDC) software version 4.x or higher, or directly through the optional EMZ9371BC Keypad XT operating module. The integrated electronic cam profiler utilizes firmware function blocks to generate, execute, and scale electronic cam tables directly within the drive hardware.
The controller incorporates non-volatile internal EEPROM memory capable of storing up to four complete parameter sets in addition to electronic cam tables. When commissioning a replacement drive, software parameters and motion profiles must be transferred from the original device or system archive to maintain correct motor thermal parameters, resolver scaling, and dynamic curve behavior.
Communication and System Integration
Network integration for the EVS9325-EK is provided via an onboard CANopen system bus interface connected at terminal X14, supporting communication rates up to 500 kbit/s. This system bus facilitates rapid synchronization between multiple 9300 series controllers and master PLCs.
To accommodate higher-level fieldbus networks, the drive features an Automation Interface (AIF) expansion slot. This slot supports plug-in communication modules including the EMF2133IB for PROFIBUS-DP and the EMF2102IB for RS-232/485 LECOM protocols, as well as INTERBUS option cards.
Diagnostics and Status Indication
System state monitoring on the EVS9325-EK combines visual LED status indicators with software-based diagnostic tools. The DRIVE Green LED communicates controller enable and run states, while the DRIVE Red LED signals TRIP fault conditions or pulse inhibits. Diagnostic monitoring is supported online in GDC software using built-in status words and oscilloscope recording functions.
Fault history is recorded in internal memory and can be accessed via parameter C0168 on the Keypad XT or through GDC. This log maintains active and historical error entries, allowing technicians to identify line voltage drops, feedback errors, or communication timeouts.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| DRIVE Green LED | Green - Solid / Flashing | Continuous green indicates controller enabled and drive operational. Flashing green indicates controller inhibit or active state without power output. |
| DRIVE Red LED | Red - Solid / Flashing | Continuous red indicates active TRIP fault (power output disabled). Flashing red indicates active warning or pulse inhibit. |
Replacement and Spare Part Considerations
When selecting a replacement for a Lenze EVS9325-EK, it is essential to verify the complete model suffix. The -EK identifier indicates built-in electronic cam profiler firmware; standard 9300 series servo controllers lack the specific cam function blocks required for synchronized motion curves.
Before applying power to a replacement drive, ensure all application parameter sets, motor data, and custom cam tables are transferred into the replacement unit's EEPROM. Any external option cards, such as PROFIBUS or LECOM modules, must be transferred from the original unit's AIF slot to match network connectivity.
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 / Overcurrent | Short circuit on motor terminals, excessive capacitive charging current, or motor phase ground fault. | Short circuit in motor cable or motor winding; excessive acceleration rate; motor cable length exceeds specification. | Check motor and wiring for short circuits and ground leaks. Inspect power output stage. Internal short-circuit fault requires factory repair. |
| OC5 | Earth Fault / Ground Fault | Earth fault in motor cable or motor winding. | Insulation breakdown in motor cable or motor windings. | Check motor cable and motor insulation resistance with megohmmeter. |
| OC6 | Motor I2t Overload | Calculated motor load thermal limit exceeded. | Continuous mechanical overload, incorrect motor thermal parameters. | Check mechanical load, sizing, and duty cycle. Allow motor to cool down. |
| OU | DC Bus Overvoltage | DC bus voltage exceeds upper threshold (>770 V DC). | Regenerative energy during deceleration too high; braking resistor defective or disconnected; brake chopper inactive. | Extend deceleration times; check external braking resistor and internal brake chopper circuit. |
| LU | DC Bus Undervoltage | DC link voltage fell below lower limit threshold (<430 V DC). | Mains supply failure, supply voltage drop, phase loss, or weak AC line supply. | Check AC line supply voltage, input fuses, and main contactor. |
| OH | Heatsink Overtemperature | Heatsink temperature exceeds threshold limit (approx. 85 °C / 90 °C). | Inadequate cooling, internal cooling fan failure, high ambient temperature, clogged heatsink fins. | Check cabinet ventilation, clean heatsink, verify internal cooling fan operation. |
| OH4 | Motor Overtemperature (PTC / Thermal Sensor) | Thermal sensor input T1/T2 triggered active overtemperature signal. | Motor thermal overload, disconnected sensor cable, active PTC sensor tripped. | Check motor temperature and load; verify T1/T2 wiring connection. |
| OH7 | Internal Device Overtemperature | Internal temperature inside the drive housing exceeded maximum limit. | Excessive control cabinet temperature. | Improve enclosure ventilation and ambient cooling. |
| SD7 | Resolver Signal Fault | Resolver signal loss, open circuit, or track fault detected at terminal X7. | Defective resolver cable, loose connector, damaged resolver winding. | Check resolver connection cable and connector at X7. Test resolver coil resistance. |
| CE0 | Communication Error AIF Module | Communication breakdown between controller and option module in AIF slot. | Loose communication module, bus interruption, defective AIF module. | Check module seating in AIF slot, bus cable connection, and bus termination. |
| CE1 | System Bus (CAN) BUS-OFF | CAN controller entered BUS-OFF status due to excessive bus transmission errors. | Incorrect baud rate, wiring error, missing terminating resistors (120 Ohm), severe EMC interference. | Check CAN bus wiring at X14, terminating resistors, cable shielding, and baud rate setting. |
| CE2 | System Bus (CAN) Sync Error | CAN sync signal failed or out of expected timing interval. | CAN master sync telegram missing or incorrect synchronization period. | Check master CAN unit sync cycle settings and network integrity. |
| CE3 | System Bus (CAN) Warning | CAN telegram transmission error counter exceeded warning threshold. | EMC noise on CAN line, loose terminal connection. | Inspect CAN shield and grounding, verify wiring integrity. |
| NMAX | Speed Limit Exceeded | Actual motor speed exceeded maximum allowable threshold. | Uncontrolled motor acceleration, incorrect resolver/encoder scaling or gain settings. | Check controller tuning parameters, feedback resolution settings, and load. |
| H05 | Internal Hardware Fault | Internal hardware self-test failed or internal power supply / EEPROM memory fault occurred. | Control board component failure, corrupted internal memory. | Internal hardware failure — return unit to manufacturer/authorized service center for repair. |
| P12 | Software Program Fault | Internal program execution monitoring fault (watchdog error or firmware crash). | Firmware fault or corruption of internal operating system. | Cycle 24V / mains power supply. If fault persists, reload firmware or return unit for repair. |
Frequently Asked Questions
What software is used to program the Lenze EVS9325-EK?
The controller is programmed and parameterized using Lenze Global Drive Control (GDC) software version 4.x or higher, or via the optional EMZ9371BC Keypad XT operating module.
Can a standard 9300 series drive replace the EVS9325-EK?
No, the EVS9325-EK contains specific electronic cam profiler firmware function blocks. A standard 9300 drive without the -EK designation cannot execute the electronic cam motion profiles required by the machine.
How are parameter sets stored on the drive?
Parameters and electronic cam tables are saved in non-volatile internal EEPROM storage, which retains up to four complete parameter sets without requiring continuous battery backup.
What does fault code OC1 indicate?
Fault code OC1 indicates an overcurrent or short-circuit condition on the motor terminals, which can be caused by motor winding shorts, grounded cables, excessive acceleration rates, or an internal power stage fault.
What fieldbus option modules can be installed in the EVS9325-EK?
The Automation Interface (AIF) slot accepts option modules including the EMF2133IB PROFIBUS-DP module, the EMF2102IB RS-232/485 LECOM module, and INTERBUS modules.
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