Lenze EVS9323-EPV004 13481757 – 1.5 kW 9300 Servo Drive
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Product Information
The Lenze EVS9323-EPV004 (part number 13481757) is a 1.5 kW servo drive from the Lenze 9300 Servo series designed for precise multi-axis positioning and synchronized motion control in dynamic production environments. Operating from a 3-phase AC input supply ranging from 320 V AC to 528 V AC, the inverter delivers a 480 V AC output with a continuous rated current of 3.9 A and a 60-second peak current capacity of 5.9 A. The EPV004 variant features integrated position control capabilities, enabling autonomous drive-based positioning algorithms directly within the unit without requiring external motion controllers. It provides closed-loop control for 4-pole AC servo motors using resolver feedback and operates at an 8 kHz switching frequency up to a maximum output frequency of 480 Hz.
Interfacing with host systems and peripheral devices relies on an array of dedicated connections, including a resolver feedback port at socket X7, master frequency or incremental encoder inputs, and an onboard CANopen system bus running at 500 kbit/s for high-speed drive-to-drive coordination. The drive also features a flexible slot X1 for automation option modules, enabling communication over fieldbus networks via the PROFIBUS-DP module EMF2133IB, INTERBUS module EMF2111IB, or serial LECOM RS-232/RS-485 adapters (EMZ9331/EMZ9332). Putting a replacement unit into service requires transferring configuration parameter sets, as the drive stores up to four switchable parameter sets in non-volatile internal EEPROM. Parameter backup and cloning can be completed using the plug-in 9371BB operating keypad (EMZ9371BB) or Lenze Global Drive Control (GDC) engineering software. ABC Industrial Parts can supply tested replacement drives and assist with parameter extraction from damaged units to ensure rapid commissioning.
Diagnostic information is displayed directly on the front panel via dual status LEDs. A solid green Ready LED indicates normal operation, while a flashing green LED signifies an active controller or pulse inhibit; a solid red Fault LED indicates an active trip fault, and a flashing red LED signals a warning message. Detailed fault history and current trip statuses can be read via diagnostic codes C0161, C0162, and history buffer C0168 using the 9371BB keypad or GDC software diagnostic window. When troubleshooting active trip conditions, basic external verification should include checking 3-phase mains voltage, terminal connections, resolver wiring at socket X7, and CAN bus 120-ohm terminating resistors. Internal power stage failures, EEPROM memory errors, or control board self-test faults (code H05) cannot be repaired in the field, making unit replacement or hardware repair through ABC Industrial Parts the effective route to restore operation.
Technical Specifications
| Manufacturer | Lenze |
| Part number | 13481757 |
| Model / type | EVS9323-EPV004 |
| Product family | 9300 Servo |
| Component type | Servo Drive |
| Rated power | 1.5 kW |
| Supply voltage range | 320 – 528 V AC |
| Rated current | 3.9 A |
| Peak output current | 5.9 A |
| Output voltage | 480 V AC |
| Maximum output frequency | 480 Hz |
| Switching frequency | 8 kHz |
| Digital inputs | 4 |
| Digital outputs | 2 |
| Analog inputs | 2 |
| Analog outputs | 2 |
Programming and Configuration
The Lenze EVS9323-EPV004 supports comprehensive commissioning and parameter adjustments through Lenze Global Drive Control (GDC) software or the detachable 9371BB operating keypad module (EMZ9371BB). Drive internal memory incorporates non-volatile EEPROM storage capable of retaining up to four independent, switchable parameter sets without requiring a battery backup. This enables precise storage of motor data, positioning profiles, ramp settings, and fieldbus communication settings.
When replacing an existing servo drive, parameter sets must be loaded into the replacement unit to match the machine configuration. Parameter cloning can be executed directly by saving parameters to the 9371BB keypad from the source drive and transferring them to the recipient drive, or by downloading a backed-up project file via GDC software. In cases where parameters need to be cleared or reset to factory configuration, code C0002 can be set to 1 to execute a parameter reset.
Communication and System Integration
System communication on the EVS9323-EPV004 is anchored by an onboard CANopen system bus operating at a fixed baud rate of 500 kbit/s. This integrated network facilitates rapid drive-to-drive data exchange and synchronized multi-axis control across distributed automation systems. Physical CAN connections require proper 120-ohm termination resistors at both ends of the bus to maintain signal integrity and prevent bus-off conditions.
For higher-level network integration, the drive features a flexible automation option slot (slot X1). This slot accepts plug-in interface modules, including the EMF2133IB for PROFIBUS-DP networks, the EMF2111IB for INTERBUS networks, and the EMZ9331/EMZ9332 serial adapters for LECOM RS-232 or RS-485 communication. Additionally, the unit incorporates discrete control terminals, providing 4 digital inputs, 2 digital outputs, 2 analog inputs, and 2 analog outputs for direct machine interlocks and monitoring.
Diagnostics and Status Indication
Drive status is monitored visually via two status LEDs on the front face of the unit. The green Ready LED remains solid when the drive is operational and ready, and flashes when controller or pulse inhibit is active. The red Fault LED illuminates solid during an active trip fault that inhibits the drive, and flashes when a warning condition or system message is present.
Comprehensive digital diagnostics are accessible using the 9371BB keypad or the GDC software diagnostic window. Maintenance personnel can inspect active faults or warnings under codes C0161 and C0162, or review historical events in the fault memory buffer at code C0168 to pinpoint intermittent operational issues.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Ready | Green - Solid / Flashing | Solid: Drive operational and ready for operation; Flashing: Controller inhibit active or pulse inhibit active. |
| Fault | Red - Solid / Flashing | Solid: Active trip fault present (drive inhibited); Flashing: Active warning or message. |
Replacement and Spare Part Considerations
When substituting a faulty unit in an active installation, exact model and variant matching is essential. The EVS9323-EPV004 is an integrated position control variant (V004) within the 9300 Servo family. Installing a standard or non-positioning variant will result in missing motion control functions and software incompatibility with machine motion sequences.
During the swap procedure, transfer any plug-in fieldbus module installed in slot X1 (such as a PROFIBUS EMF2133IB or INTERBUS EMF2111IB) from the old unit to the replacement drive, ensuring it is firmly seated. Before starting the motor, transfer all parameter sets stored in non-volatile EEPROM via the 9371BB keypad or GDC software, and verify feedback wiring at resolver connector X7 and CAN termination resistors.
If a replacement drive generates persistence codes such as H05 (internal hardware fault), EER (EEPROM fault), or unresolvable OC1 short circuit trips even with the motor disconnected, an internal component fault is indicated. In these situations, field servicing is not viable, and exchanging or repairing the internal control/power electronics module is necessary to return the equipment to service.
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 at motor terminals or earth fault in motor line. | Short circuit in motor cable, motor winding fault, earth fault, extremely short acceleration time. | Check motor cable and insulation, check motor windings, verify acceleration ramp settings. If error persists with motor disconnected, internal hardware damage has occurred — return unit for repair. |
| OC5 | I x t Overload | Continuous overload threshold exceeded for too long. | Drive loaded above continuous rated current for longer than allowable time limit, mechanical stall or overload. | Check drive load, check for mechanical blockage, increase drive rating or check application duty cycle. |
| OH | Heatsink Overtemperature | Inverter heatsink temperature exceeded maximum allowable limit (> 85°C). | Inadequate cooling, fan failure, dirty heatsink fins, ambient temperature too high. | Clean heatsink fins, verify operation of internal cooling fan, improve cabinet ventilation, allow drive to cool down. |
| OH4 | Motor Overtemperature | Motor thermal contact / PTC thermistor triggered (terminals T1/T2). | Motor thermal overload, insufficient motor cooling, defective temperature sensor or broken wire on sensor cable. | Allow motor to cool, check motor load, verify sensor connection at terminals T1 and T2. |
| OU | DC Bus Overvoltage | DC bus voltage exceeded overvoltage trip threshold (> 770 V DC). | Regenerative energy from motor during deceleration too high, brake chopper not connected, brake resistor damaged or incorrectly sized. | Extend deceleration time, check external brake chopper/resistor connections, verify supply mains voltage. |
| LU | DC Bus Undervoltage | DC bus voltage dropped below minimum operating limit. | Mains supply voltage failure, phase failure, supply voltage drop under load, DC bus precharge circuit fault. | Check incoming 3-phase mains voltage and fuses, verify supply wiring and contacts. If voltage is normal, internal power supply circuit failed — return unit for repair. |
| LP1 | Mains Phase Fault | Failure of one incoming phase of 3-phase AC power supply. | Blown input fuse, loose terminal connection, phase asymmetry. | Check all three incoming AC phases for correct line voltage and balance. |
| CE0 | CAN Communication Error | Communication failure or bus-off condition on internal CAN system bus. | CAN bus cable disconnected, wrong baud rate, missing bus termination resistor (120 Ohm), heavy EMC interference. | Check CAN wiring and shield connection, verify terminating resistors on both ends of CAN bus, check CAN baud rate parameter. |
| CE1 | Fieldbus Module Error | Communication error with plug-in fieldbus option module in slot X1. | Fieldbus module not properly seated, network cable fault, PLC master timed out. | Check slot X1 module installation, verify fieldbus cabling, check PLC network status. |
| EER | EEPROM Read/Write Error | Internal EEPROM memory checksum fault during parameter save or bootup. | Power failure during parameter save, non-volatile memory corruption or chip failure. | Perform parameter reset to factory default (C0002 = 1). If error persists, internal hardware memory component has failed — replace drive / return for repair. |
| H05 | Internal Hardware Fault | Internal processor / control board self-test failed. | Internal electronic component failure or defective control circuit board. | Internal hardware failure — return unit for repair or replace drive. |
| NMAX | Speed Limit Exceeded | Actual motor speed exceeded maximum configured speed limit. | Incorrect feedback setup, feedback sensor failure, loss of load control in torque mode. | Check feedback encoder/resolver cabling, check parameter setting for max motor speed. |
| Sd1 | Resolver Feedback Fault | Signal failure or disconnection detected on resolver input X7. | Resolver cable damaged, loose Sub-D connector, defective resolver sensor. | Check resolver connection at connector X7, verify shielding and wiring continuity. |
Frequently Asked Questions
What software and hardware are required to program the Lenze EVS9323-EPV004?
Commissioning and parameter programming can be performed using Lenze Global Drive Control (GDC) software on a PC connected via a LECOM adapter (EMZ9331 or EMZ9332), or locally using the 9371BB operating keypad module (EMZ9371BB).
How are parameter settings transferred when replacing an EVS9323-EPV004 servo drive?
Drive parameters are stored in non-volatile EEPROM holding up to four parameter sets. Parameters can be cloned by uploading them to a 9371BB operating keypad and downloading them to the replacement unit, or by uploading/downloading parameter files using GDC software.
What fieldbus networks are supported by the EVS9323-EPV004?
The drive includes an onboard CANopen system bus operating at 500 kbit/s. In addition, slot X1 supports plug-in communication modules including PROFIBUS-DP (EMF2133IB), INTERBUS (EMF2111IB), and LECOM RS-232/RS-485 adapters.
What does fault code OC1 indicate on this drive?
Fault code OC1 indicates a short circuit or earth fault at the motor terminals or motor cable. If the OC1 trip persists after disconnecting the motor cable from the drive, an internal power stage failure has occurred requiring hardware repair.
How do the front-panel status LEDs indicate drive status?
The green Ready LED lights solid when operational and flashes during controller or pulse inhibit. The red Fault LED lights solid during an active trip fault (drive inhibited) and flashes during warning conditions or system messages.
What motor feedback system is used with the Lenze EVS9323-EPV004?
The drive uses a resolver feedback interface connected at Sub-D socket X7 for closed-loop motor control and position feedback. Fault code Sd1 indicates a signal fault or cable disconnection at connector X7.
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