Lenze EVS9322-EK 9300 Servo Cam Profiler Drive Controller
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Product Information
The Lenze EVS9322-EK is a 0.75 kW servo drive controller from the 9300 Servo family, engineered as a 9300 Servo Cam Profiler module. Designed to replace traditional mechanical cam mechanisms with dynamic, programmable electronic motion curves, this unit integrates precise motion control logic and a high-performance inverter within a single IP20-rated enclosure. It operates on a three-phase AC supply voltage ranging from 320 V AC to 528 V AC, delivering a rated output current of 2.5 A at 400 V AC and 2.1 A at 480 V AC. Capable of handling demanding acceleration duty cycles, the drive permits up to 150 percent overload current (3.75 A) for 60 seconds and a maximum peak current of 5.0 A for 0.5 seconds, providing robust dynamic performance for packaging machinery, printing presses, paper converting lines, and high-speed rotary knife applications.
Interfacing the unit into a multi-axis automated system relies on its integrated CAN/CANopen system bus operating at speeds up to 500 kbit/s, alongside dedicated 500 kHz master frequency inputs and repeater outputs for line-shaft axis cascading. Motor resolver feedback connects directly through terminal block connector X6, while an integrated front Automation Slot (A-Slot) accepts plug-in fieldbus adapters such as PROFIBUS-DP or INTERBUS modules. Commissioning a replacement EVS9322-EK drive requires transferring the electronic cam profile tables, fieldbus node settings, and operational parameters using Lenze Global Drive Control (GDC) software version 4.x or higher, or the plug-in Keypad XT (EMZ9371BC). Because an off-the-shelf spare contains only default values, data restoration from a backup or existing machine project is necessary before placing the unit into active service. ABC Industrial Parts can assist maintenance teams with parameter backup extraction and spare drive preparation to minimize equipment downtime.
Real-time operational status is displayed on the front interface via three LED indicators: Green for ready/operating status, Red for active TRIP faults, and Yellow for warnings or inhibited power stage impulses. In-depth diagnostic evaluation is accessible by monitoring parameter codes C0168 and C0170 using GDC software or the Keypad XT sub-menu. Internal monitoring functions flag operational faults such as heatsink overtemperature (OH), DC bus overvoltage (OU), motor overload (OC5), resolver feedback errors (r0), and cam profiler program exceptions (Pr1). When hardware failure occurs—such as power module short circuits (OC1), system software exceptions (S0), or internal board degradation (H05)—component-level repairs on site are impractical. In these circumstances, sourcing a tested replacement drive through ABC Industrial Parts offers a dependable path back to continuous production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVS9322-EK |
| Model / Type | 9300 Servo Cam Profiler |
| Product Family | 9300 Servo |
| Component Type | Servo Drive Controller |
| Rated Power | 0.75 kW |
| Supply Voltage Range | 320 - 528 V AC |
| Rated Output Current (400 V) | 2.5 A |
| Rated Output Current (480 V) | 2.1 A |
| Maximum Output Current (60s) | 3.75 A |
| Peak Output Current (0.5s) | 5.0 A |
| Max Output Frequency | 480 Hz |
| Switching Frequency | 8 kHz |
| Ingress Protection Rating | IP20 |
| Integrated System Bus | CAN / CANopen |
Programming and Configuration
Programming and parameter management for the Lenze EVS9322-EK servo drive controller are executed using Lenze Global Drive Control (GDC) software version 4.x or higher. Connection between a PC and the drive is established via a dedicated PC System Bus Adapter such as the EMF2177IB or EMF2173IB. Alternatively, local parameter editing, status verification, and menu navigation can be performed directly at the machine panel using the plug-in Keypad XT (EMZ9371BC).
The core function of the 9300 Servo Cam Profiler involves downloading custom electronic cam profiles into the controller's non-volatile parameter memory. These motion profiles define flexible position curves without mechanical hardware changes. When replacing a controller, commissioning requires restoring these specific software curves alongside motor parameters and fieldbus node addresses. In cases where parameter corruption triggers an EEPROM fault (EER), loading factory defaults followed by a full project re-download clears the error buffer and restores correct operating parameters.
Communication and System Integration
System integration within multi-axis automation networks relies on the onboard CAN/CANopen system bus interface, which operates at data rates up to 500 kbit/s. This bus allows high-speed communication and real-time coordination between multiple drives. In addition, integrated master frequency inputs and repeater outputs (500 kHz) enable precise line-shaft axis synchronization, permitting cascaded follower drives to run in tight angular lock with a central master reference.
To interface with higher-level plant automation systems, the EVS9322-EK features a front Automation Slot (A-Slot). This slot accepts optional communication modules, including PROFIBUS-DP cards (EMF2133IB / EMF2112IB), INTERBUS cards (EMF2102IB / EMF2130IB), or serial LECOM adapters. Proper fieldbus communication requires configuring network addresses, setting matching baud rates, and installing 120 Ohm bus termination resistors at the physical ends of the CAN system bus line.
Diagnostics and Status Indication
The EVS9322-EK features hardware and software diagnostic facilities to identify system states and operating faults. Three LED indicators on the front panel provide immediate visual status: Green indicates drive readiness and operational status, Red indicates active TRIP conditions that disable the inverter power stage, and Yellow highlights active warnings or inhibited output pulses.
For precise fault history analysis, control technicians can review active fault codes and stored event buffers via parameter indices C0168 and C0170. These parameters can be read using the Keypad XT diagnostic sub-menu or through the GDC software diagnostic window, permitting quick troubleshooting of power, feedback, or communication anomalies.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Ready / Operation (Green) | Green - Blinking / Solid | Blinking green indicates drive ready or inhibited; Solid green indicates drive enabled and operating normally. |
| TRIP / Fault (Red) | Red - Solid | Active TRIP fault present. Drive output stage is disabled. |
| Warning / Impulses Inhibited (Yellow) | Yellow - Solid / Blinking | Warning active or power stage impulses inhibited. |
Replacement and Spare Part Considerations
Although Lenze officially discontinued the EVS9322-EK in December 2020, thousands of these 0.75 kW drives remain in active operation. When replacing a failed module, matching the exact part number ensures full mechanical compatibility, matching IP20 physical dimensions, and identical power terminal locations inside the control cabinet.
A replacement unit cannot operate straight out of the box. Machine motion profile tables, motor control settings, and fieldbus node parameters must be uploaded to the spare unit using Global Drive Control (GDC) software version 4.x or higher. Prior to energizing the power stage, confirm that resolver cabling at connector X6 is secured, three-phase AC input voltages (320 V AC to 528 V AC) are verified, and system bus termination resistors are correctly configured.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| OH | Heatsink Overtemperature | Heatsink temperature has exceeded the maximum permissible threshold. | Ambient temperature too high; inadequate panel cooling; blocked heatsink cooling fins; fan failed. | Check cabinet ventilation and cooling fan; clear blocked heatsink fins; allow drive to cool before resetting. |
| OH4 | Motor Overtemperature | Motor temperature sensor trip via PTC/thermal contact input at X6 connector. | Motor overload; defective thermal sensor wiring; motor mechanical blockage. | Check motor load and mechanical alignment; check motor PTC sensor resistance and cabling. |
| OH7 | Internal Drive Overtemperature | Internal air temperature inside the inverter enclosure exceeded allowable threshold. | Excessive enclosure temperature; internal hardware cooling failure. | Improve control cabinet ventilation; reduce switching frequency or output current. |
| OU | DC Bus Overvoltage | DC bus voltage exceeded upper limit threshold (e.g. >770V DC). | Excessive regenerative energy during deceleration; braking chopper fault or missing brake resistor. | Extend deceleration time; verify external brake resistor connection and resistance value. |
| LU | DC Bus Undervoltage | DC bus voltage fell below minimum allowable operating threshold. | Supply mains phase loss; low mains voltage; power interruption. | Check mains line supply voltage, fuses, and incoming main switch. |
| OC1 | Short Circuit / Earth Fault | Instantaneous short circuit or ground fault detected on motor terminals. | Motor winding short circuit; motor cable short to ground or short between phases; damaged power module. | Disconnect motor cables and test insulation resistance; inspect motor and cabling. If fault persists with motor disconnected, internal hardware fault present - return unit for repair. |
| OC2 | Ground Fault | Earth fault current detected in motor leads. | Insulation breakdown in motor winding or power cable to ground. | Check motor and cable insulation resistance to earth using a megohmmeter. |
| OC5 | Drive Overload (I x t) | Inverter thermal overload limit exceeded (I x t monitoring). | Continuous operation above rated current (150% for >60s). | Reduce mechanical load or accelerate/decelerate duty cycle; check motor sizing. |
| OC6 | Motor Overload (I2t) | Calculated motor thermal overload exceeded based on motor parameter settings. | Motor operating continuously beyond rated motor current. | Verify motor load and motor nameplate parameters configured in drive. |
| NMAX | Overspeed Limit Exceeded | Actual motor speed exceeded configured maximum speed limit (C0596). | Incorrect speed controller tuning; feedback noise or mechanical overspeed drive by load. | Check speed feedback signals, mechanical brake, and controller tuning settings. |
| r0 | Resolver Fault | Resolver signal evaluation error at connector X6. | Disconnected or damaged resolver cable; defective resolver sensor; incorrect cable shielding. | Check connector X6 wiring, cable shielding, and resolver winding resistance. |
| S0 | System Fault | Internal operating system fault or program execution exception. | Severe electrical noise disturbance or internal micro-controller failure. | Internal hardware or system failure — recycle power. If problem persists, replace unit or contact service. |
| H05 | Hardware Fault | Internal hardware failure on controller power or control board. | Faulty internal component or corrupted board hardware integrity. | Internal hardware fault — return unit for repair or replace unit. |
| EER | EEPROM Fault | EEPROM memory checksum error during power-up read or write operation. | Corrupted non-volatile parameter memory; EEPROM chip hardware failure. | Re-load factory default settings or re-download parameters via GDC. If error persists, internal EEPROM failure — replace unit. |
| LP1 | Mains Phase Failure | Failure or severe unbalance detected on one of the incoming AC supply line phases. | Blown input line fuse; disconnected phase wire; unbalanced three-phase supply. | Check incoming AC line voltages across all three phases. |
| CE0 | System Bus (CAN) Communication Error | Communication failure or time-out on CAN system bus interface. | Damaged CAN cable; missing bus termination resistor (120 Ohm); incorrect baud rate setting. | Check CAN bus cabling, pinout, bus termination at line ends, and baud rate configuration. |
| Pr1 | Cam Profiler Program Fault | Electronic cam profile calculation error or invalid cam track configuration. | Invalid cam profile table data; discontinuity in configured electronic cam path. | Check cam data profile and motion program using Global Drive Control software. |
Frequently Asked Questions
What software is required to configure the Lenze EVS9322-EK servo drive?
Configuration and parameter management require Lenze Global Drive Control (GDC) software version 4.x or higher, connected using a PC system bus adapter such as the EMF2177IB or EMF2173IB. Basic parameters can also be monitored and edited directly using the plug-in Keypad XT (EMZ9371BC).
Can I replace a failed EVS9322-EK drive without reprogramming?
No, a replacement drive contains default factory settings and does not include your machine's electronic cam profiles or operational parameters. You must transfer the original GDC project file or parameter backup to the replacement unit before running the system.
What does a solid red TRIP LED indicate on the front panel?
A solid red TRIP LED indicates an active fault condition that has disabled the inverter power stage. The specific error code (such as OC1, OU, or OH) can be identified by reading parameter C0168 or C0170 through GDC software or the Keypad XT sub-menu.
Which fieldbus modules are supported by the front expansion slot?
The front Automation Slot (A-Slot) supports optional fieldbus modules including PROFIBUS-DP cards (EMF2133IB / EMF2112IB), INTERBUS cards (EMF2102IB / EMF2130IB), and PC System Bus Adapters (EMF2177IB / EMF2173IB).
How do I troubleshoot an r0 fault on the EVS9322-EK?
An r0 fault indicates a resolver feedback error evaluated at connector X6. Inspect the resolver cable wiring and shield connection for damage or noise interference, verify connector seating, and check the resolver winding resistance.
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