Lenze 13431381 EVS9322-EK – 9300 Servo Inverter Drive 0.75 kW
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Product Information
The Lenze 13431381 EVS9322-EK is a panel-mounted 0.75 kW servo inverter drive from the Lenze 9300 Servo family, engineered for dynamic control of synchronous and asynchronous servo motors. Operating on a three-phase AC supply voltage ranging from 320 V to 528 V AC, this unit delivers a continuous rated current of 2.5 A and supports a 150% peak current capacity of 3.75 A for up to 60 seconds. Utilizing field-oriented vector control, the drive achieves precise torque, speed, and position regulation across an output frequency range up to 480 Hz with an 8 kHz switching frequency.
Connecting the drive into an automated system is facilitated by built-in feedback interfaces, including a standard resolver input and incremental encoder channels. Network integration is handled through the integrated CAN System Bus running at 500 kbit/s, while optional fieldbus cards such as PROFIBUS-DP or LECOM RS232/RS485 can be installed into expansion Slot X1. When commissioning a spare drive, parameter sets stored in internal non-volatile EEPROM memory must be loaded to mirror the original controller settings. Commissioning technicians can transfer these parameters using Lenze Global Drive Control (GDC) software or clone them directly via the Keypad XT module inserted into Function Slot X2. ABC Industrial Parts can assist with supply and parameter management when preparing a replacement drive for installation.
Status and diagnostic evaluation rely on the STAT1 green LED and STAT2 red LED located on the front cover, alongside dedicated TRIP relay output contacts across terminals 28 and 29. A blinking green STAT1 LED confirms active controller operation, whereas a solid red STAT2 LED indicates an active TRIP condition resulting from faults such as output short circuits, DC bus overvoltage exceeding 770 V DC, or internal heatsink overtemperature above 85°C. Initial checks should include verifying 3-phase mains balance, motor cable insulation, and CAN bus termination resistors. When internal micro-controller faults or EEPROM memory errors occur, hardware components cannot be repaired in the field, making a tested replacement drive from ABC Industrial Parts the most efficient way to restore operational throughput.
Technical Specifications
| Rated Power | 0.75 kW |
| Supply Voltage Range | 320 - 528 V AC (3-phase) |
| Rated Current | 2.5 A |
| Max Output Current | 3.75 A (150% for 60 s) |
| Max Output Frequency | 480 Hz |
| Switching Frequency | 8 kHz |
| Control Method | Field-oriented vector control |
| Integrated System Bus | CAN (500 kbit/s) |
| TRIP Relay Contacts | Terminals 28 / 29 |
Programming and Configuration
Configuration of the Lenze 13431381 EVS9322-EK drive is handled through the Lenze Global Drive Control (GDC) engineering software environment or using the portable Keypad XT unit (EMZ9371BC). System parameters governing speed controller gains, acceleration ramps, I²t thermal limits, and fieldbus node addresses are stored within non-volatile EEPROM memory embedded on the internal control board.
When replacing a unit, parameter transfer can be executed without a PC by connecting a Keypad XT to Function Slot X2, copying the dataset from the original drive, and loading it into the replacement drive. Alternatively, GDC software enables full parameter backup, online monitoring, and restoration over serial or fieldbus connections. Recommissioning requires verifying critical parameters, such as code C0002 for parameter set reset and restore operations and C0351 for system bus baud rates.
Communication and System Integration
The EVS9322-EK servo drive incorporates an onboard CAN System Bus interface accessible at terminals X4 and X5, operating at communication speeds up to 500 kbit/s for fast cross-communication between multiple Lenze 9300 Servo drives. Proper network topology requires standard 120-ohm termination resistors fitted at both physical ends of the CAN bus line.
For high-level industrial fieldbus communication, Automation Slot X1 accepts optional communication modules, including PROFIBUS-DP cards (EMF2133IB or EMF2131IB), INTERBUS modules, or LECOM RS232/RS485 interfaces. Feedback signal processing includes built-in inputs for resolvers and incremental encoders, enabling synchronized multi-axis motion and precise positioning within high-speed automated machinery.
Diagnostics and Status Indication
Diagnostic monitoring on the Lenze 13431381 drive combines hardware LED indicators with digital output signals and numerical fault code displays on the Keypad XT or GDC software. Physical relay contacts across terminals 28 and 29 serve as a dedicated TRIP output to inform the master PLC of a drive fault state.
Front-panel status indicators provide real-time operating status. The STAT1 LED displays drive activity and ready status, while the STAT2 LED signals active warnings, errors, or TRIP conditions requiring operator action.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| STAT1 | Green - Blinking / Solid / Off | Blinking indicates drive active or controller enabled; solid light indicates ready or pulse inhibit; dark indicates unit unpowered or missing supply. |
| STAT2 | Red - Solid / Flashing | Continuous light or fast flashing indicates TRIP active (drive fault); slow flashing indicates warning or error message active. |
Replacement and Spare Part Considerations
Replacing a Lenze 13431381 (EVS9322-EK) servo drive requires ensuring the replacement unit matches the exact model number and electrical specification of 0.75 kW at 2.5 A continuous output. Prior to powering up a replacement unit, verify that input AC line voltage is balanced between 320 V and 528 V AC and that all motor output phases and shield connections are secure.
Because a replacement drive comes unconfigured or loaded with factory settings, parameter files must be transferred from the original unit or loaded from a machine backup. Parameter sets can be downloaded using Lenze GDC software or copied directly via the Keypad XT module. Verify that option cards installed in Slot X1, such as PROFIBUS communication modules, are transferred to the replacement unit and firmly seated before reconnecting fieldbus wiring.
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 / Earth fault | Short circuit or earth fault on output power terminals or motor phase lines | Short circuit in motor cable; motor winding breakdown; earth fault in wiring | Check motor cable and motor windings for insulation fault/short circuit. If error persists with motor disconnected, internal power stage failure — contact service / return unit for repair. |
| OC2 | Earth fault | Earth fault on output phase terminals during operation | Capacitive leakage current in long motor cable; winding insulation fault to ground | Check motor cable length and grounding insulation; check motor insulation resistance. |
| OC5 | Overcurrent during acceleration | Output current exceeded allowed threshold during acceleration ramp | Acceleration time ramp set too short; mechanical load jammed or blocked; motor wrongly dimensioned | Increase acceleration time; check mechanical system for jams; verify motor parameter setting. |
| OU | Overvoltage DC bus link | DC bus link voltage exceeded maximum limit (>770 V DC) | Excessive regenerative energy during deceleration; brake chopper transistor inactive; braking resistor broken or incorrectly sized | Extend deceleration time ramps; check external braking resistor and brake module wiring. |
| LU | Undervoltage DC bus link | DC bus link voltage dropped below minimum threshold (<430 V DC) | Mains supply voltage too low; phase loss in mains supply; power supply failure | Check AC mains supply voltage and fuses; check incoming mains phase symmetry. |
| OH | Overtemperature Heatsink | Power section heatsink temperature exceeded maximum threshold (>85°C) | Cooling airflow restricted or dirty heatsink fins; cabinet fan failure; ambient temperature too high | Clean heatsink cooling fins; verify cabinet ventilation and fan function; reduce load or switching frequency. |
| OH4 | Overtemperature Inside Unit | Internal temperature inside control section electronics exceeded maximum limit (>70°C) | Control cabinet internal ambient temperature excessive; insufficient internal cabinet cooling | Improve cooling inside control cabinet; inspect unit installation clearance. |
| OH7 | Motor Phase Failure / Motor Overtemperature | Motor thermal sensor (PTC / KTY / thermal contact) triggered thermal protection or motor phase interrupted | Motor overloaded; motor cooling fan failure; motor sensor circuit wire broken | Allow motor to cool down; check motor load and cooling fan; verify temperature sensor connections at terminals T1/T2. |
| OH8 | Motor Overtemperature (I²t calculated) | Calculated motor thermal load (I²t) reached 100% threshold | Continuous operation above rated motor current at low speeds | Check motor operating current; adjust I²t thermal monitoring settings (C0075/C0076); reduce motor load. |
| OEX | External Fault | External fault condition triggered via digital input assigned to External Fault function | External safety circuit or monitoring sensor opened contact | Inspect external equipment connected to assigned digital input. |
| EE0 | EEPROM Fault (Control Section) | Internal non-volatile EEPROM communication or checksum error | Data corruption during power-down or internal hardware memory fault | Reload factory default parameters (C0002 = 1). If fault persists, internal hardware defect — return unit for repair. |
| EE1 | EEPROM Fault (Power Section) | Non-volatile memory fault on internal power module board | Internal hardware failure on power section board | Cycle power to drive. If fault remains active, unserviceable internal board failure — return unit for repair. |
| EEr | EEPROM Read Error | Error reading operating parameters during power-up boot sequence | Corrupted parameter memory space | Re-download complete parameter set from GDC or Keypad XT. If persistent, return unit for repair. |
| NMAX | Speed Limit Exceeded | Actual motor speed exceeded configured maximum speed threshold (C0011) by >10% | Incorrect speed controller tuning; overshooting load; wrong feedback resolution or scaling | Check speed controller gains (C0070/C0071); verify motor encoder/resolver feedback resolution. |
| H05 | Internal Hardware Error | Internal micro-controller hardware fault or internal voltage monitoring error | Control board failure or defective internal voltage regulator | Internal control board hardware defect — not field serviceable. Return unit for repair or replace inverter. |
| P12 | Parameter Fault | Inconsistent or out-of-range parameter combination detected upon initialization | Incompatible parameter download or invalid value set in configuration code | Restore factory defaults (C0002) and re-commission parameters using Lenze GDC. |
| CE0 | Communication Error Slot X1 | Communication failure between inverter control board and optional fieldbus module in Slot X1 | Loose fieldbus card connection; fieldbus cable disconnected; master PLC stopped communication | Check plug-in seated connection of module in Slot X1; check network cable connections and PLC communication state. |
| C01 | System Bus Fault (CAN) | Communication interruption or bus-off state detected on integrated System Bus (X4/X5) | CAN bus wire broken or shorted; missing bus termination resistors (120 Ohm); incorrect baud rate setting | Verify CAN bus wiring, shield grounding, and termination at both ends of the network; check baud rate setting C0351. |
Frequently Asked Questions
How do I transfer parameters to a replacement Lenze EVS9322-EK drive?
Parameters can be transferred using the Keypad XT module (EMZ9371BC) inserted into Function Slot X2 to clone data directly between drives, or by downloading the saved parameter set using Lenze Global Drive Control (GDC) PC software.
What option modules can be fitted into expansion Slot X1?
Automation Slot X1 supports communication option cards including PROFIBUS-DP modules (EMF2133IB and EMF2131IB), INTERBUS modules, and LECOM RS232/RS485 communication cards.
What causes an OU fault on the Lenze 13431381 drive?
An OU fault indicates that the internal DC bus voltage has exceeded 770 V DC. This is typically caused by excessive regenerative braking energy during deceleration, an inactive brake chopper, or a damaged external braking resistor.
What does a solid red STAT2 LED indicate?
A solid red STAT2 LED indicates an active TRIP condition, meaning the drive has shut down due to a system fault such as overcurrent, DC bus overvoltage, or thermal overload.
Can internal hardware errors like fault H05 or EE0 be fixed on-site?
Internal micro-controller faults (H05) or persistent EEPROM memory errors (EE0 or EE1) indicate hardware failures on internal printed circuit boards. These conditions are not field-serviceable and require unit replacement or repair.
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