Lenze 00465120 EVS9321-EPV004 9300 Servo Drive 0.75kW
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Product Information
The Lenze EVS9321-EPV004, part number 00465120, is a 0.75 kW servo drive controller from the Lenze 9300 Servo Positioning family. Engineered for precise motion tasks, this drive combines field-oriented closed-loop vector control with integrated point-to-point positioning and motion sequence routines. Operating on a three-phase AC input supply voltage ranging from 320 V to 528 V AC (rated at 400 V AC), the controller delivers a continuous output current of 2.5 A and a peak current of 3.75 A, providing a 150% overload capability for 60 seconds during dynamic acceleration moves. The unit operates with a default switching frequency of 8 kHz, configurable up to 16 kHz with power derating, and covers an output frequency range from 0 to 480 Hz to suit various automated positioning sequences.
Interfacing the EVS9321-EPV004 with machine hardware is accomplished through dedicated physical terminals and feedback connections. Motor feedback is handled via Sub-D connectors, supporting standard resolvers on input X7 and RS422 incremental encoders on inputs X8 and X9, while a motor thermal sensor connects directly at terminal X10. An integrated CAN-based System Bus on terminal strip X4 enables real-time drive-to-drive networking at data rates up to 500 kbit/s. For expanded fieldbus integration, the unit features an Automation Interface (AIF) slot capable of accepting optional communication cards such as PROFIBUS-DP or LECOM modules, as well as the 9371BB plug-in keypad module. Commissioning a replacement unit requires transferring the parameter configuration from the existing drive using either the 9371BB keypad for direct parameter cloning or Lenze Global Drive Control (GDC) software. Technical assistance for parameter extraction and drive commissioning is supported by ABC Industrial Parts.
Diagnostic conditions are communicated through front-panel status LEDs and numeric display codes. A green DRIVE READY LED indicates active controller status or pending operation, a yellow IMP LED signals pulse inhibition on the power stage output, and a red TRIP LED alerts to active fault conditions that shut down the inverter output. When paired with the 9371BB keypad or monitored over fieldbus and Lenze GDC software, specific TRIP codes assist in identifying external faults such as overcurrent, undervoltage, or encoder signal loss. Initial troubleshooting steps should verify input line voltages on terminals L1, L2, and L3, confirm resolver or encoder cable shielding, and check CAN network termination. Internal board failures, represented by unrecoverable fault codes like H05 or EEPROM errors like EER, cannot be serviced in the field; in these scenarios, replacing the unit or obtaining a tested exchange drive from ABC Industrial Parts offers a direct route back to full operation.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 00465120 |
| Model / Type | EVS9321-EPV004 |
| Product Family | 9300 Servo |
| Component Type | Servo Drive |
| Rated Power Output | 0.75 kW |
| Supply Voltage | 400 V AC |
| Supply Voltage Range | 320 - 528 V AC |
| Continuous Output Current | 2.5 A |
| Maximum Peak Current | 3.75 A |
| Output Voltage | 0 - 400 V AC |
| Output Frequency Range | 0 - 480 Hz |
| Default Switching Frequency | 8 kHz |
| Control Method | Field-Oriented Vector Control |
| System Bus Data Rate | 500 kbit/s |
Programming and Configuration
Configuring the Lenze EVS9321-EPV004 servo drive is primarily performed using Lenze Global Drive Control (GDC) software or the 9371BB plug-in keypad module. The GDC software tool allows engineers and maintenance staff to program motion sequences, adjust speed controller gain settings, define software position limits, and structure point-to-point positioning tasks. PC connection to the drive can be established using PC System Bus Adapters such as the EMF2171IB or EMF2172IB.
For fast field replacement without a dedicated PC, the optional 9371BB keypad module serves as a parameter cloning tool. Operating parameters stored in the active drive memory can be copied into the keypad memory and transferred directly to a replacement controller. When restoring parameter sets transferred from different drive models or software revisions, a parameter initialization error (PI code) may occur, requiring a factory default reset (LOAD DEFAULT) before loading the final configuration.
Communication and System Integration
System communication for the 00465120 drive relies on the integrated CAN-based System Bus available on terminal strip X4. Operating at transmission speeds up to 500 kbit/s, this interface supports multi-axis synchronization, master-slave drive configurations, and high-speed data exchange between drive controllers. Proper physical bus setup requires 120-ohm termination resistors installed at both ends of the CAN network line.
In addition to the built-in system bus, the drive includes an Automation Interface (AIF) slot for system integration into higher-level industrial networks. The slot accepts plug-in AIF modules including PROFIBUS-DP interface cards (EMF2133IB / EMF2131IB), LECOM serial interface cards (EMF2102IB), and Interbus communication cards. Communication health is actively monitored, with error codes CE0 and CE1 indicating interface communication faults or system bus interruptions.
Diagnostics and Status Indication
The EVS9321-EPV004 features a three-LED diagnostic display on its front panel to provide immediate operational status. The green DRIVE READY LED signals normal controller readiness or pending operation, the yellow IMP LED indicates that the inverter power stage pulses are inhibited, and the red TRIP LED indicates an active trip state that disables the power stage.
For detailed diagnostic analysis, numerical fault codes are displayed on the 9371BB keypad display or retrieved over fieldbus and GDC software. The diagnostic routines evaluate current, voltage, temperature, speed feedback, and hardware integrity, allowing maintenance personnel to quickly isolate line phase drops, motor thermal overload conditions, or feedback cable disruptions.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| DRIVE READY | Green - Solid / Flashing | ON: Drive ready for operation / active controller enable; Flashing: Operation pending or controller inhibited |
| IMP / Pulse Inhibit | Yellow - Solid | ON: Power stage pulses inhibited (inverter output disabled) |
| TRIP / Fault | Red - Solid | ON: Fault condition present (TRIP active). Power stage switched off. Requires reset. If steady red together with display error code H05 or EER, indicates unrecoverable internal hardware failure requiring repair. |
Replacement and Spare Part Considerations
The Lenze 9300 Servo series reached official end-of-life (EOL) status in December 2018. When replacing an existing EVS9321-EPV004 controller, maintaining exact part number compatibility (00465120) ensures that power ratings, 0.75 kW output capability, 400 V AC supply compatibility, and feedback interface wiring on connectors X7 and X8 remain fully aligned with existing system design.
Before installing a replacement drive into production, parameter sets must be transferred from the original unit. Using the 9371BB keypad module or Lenze GDC software, parameter backups can be saved and downloaded directly to the spare unit. Ensure that fieldbus DIP switch configurations or optional AIF modules (such as PROFIBUS EMF2133IB) are transferred from the damaged controller to the spare module prior to powering up the machine.
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 ground fault detected on motor output phase. | Motor cable short circuit, motor winding failure, ground fault in cable or motor. | Check motor wiring and insulation; test motor windings with megohmmeter; disconnect motor and reset controller. |
| OC2 | Overcurrent During Acceleration | Motor current exceeded maximum allowed limit during acceleration phase. | Acceleration ramp time too short, motor mechanically blocked or stalled, parameter settings incorrect. | Increase acceleration time; verify mechanical load moveability; check motor power configuration. |
| OC3 | Overcurrent During Deceleration | Motor current exceeded maximum allowed limit during deceleration phase. | Deceleration ramp time too short, dynamic brake resistor missing or misconfigured. | Increase deceleration time; check brake chopper transistor and brake resistor connection. |
| OC4 | Intermittent Overcurrent | Transient high current pulse detected on inverter output. | Loose motor leads, rapid load variations, EMC interference on control lines. | Tighten power connection terminals; check shielding and grounding practices. |
| OU | DC Bus Overvoltage | Voltage on DC bus exceeded maximum voltage threshold (approx. 770 V DC). | Regenerative energy from motor during deceleration too high; brake chopper failure; brake resistor open-circuit. | Check brake resistor value and connection; extend deceleration time; verify mains supply voltage. |
| LU | DC Bus Undervoltage | DC bus voltage fell below minimum allowable operating threshold. | Mains supply failure, voltage drop, input phase loss, power supply fuse blown. | Check mains voltage at terminals L1, L2, L3; inspect input fuses and main contactor. |
| OH | Heatsink Overtemperature | Drive heatsink temperature exceeded maximum threshold. | Insufficient cooling airflow, fan failure, ambient temperature too high, heavy continuous overload. | Clean heatsink cooling fins; verify cooling fan operation; check control cabinet ventilation. |
| OH4 | Motor Overtemperature | Motor thermal sensor activated (PTC sensor at motor connector/terminal). | Motor overload, inadequate motor cooling, thermal sensor wiring broken. | Allow motor to cool; check mechanical load; verify motor thermal sensor connection at X10 or terminal. |
| OH7 | Internal Drive Overtemperature | Temperature inside controller enclosure exceeded safety limit. | Enclosure ventilation inadequate, excessive cabinet ambient temperature. | Improve enclosure cooling and air circulation. |
| NMAX | Speed Limit Exceeded | Actual speed feedback exceeded configured maximum motor speed. | Speed controller unstable, feedback encoder inverted or slipping, overspeed parameter exceeded. | Check feedback system alignment and cable shielding; adjust speed controller gain settings. |
| H05 | Internal Hardware Fault | Hardware fault detected on drive main controller board. | Internal component failure, memory corruption, board-level fault. | Internal hardware fault — field-repair not possible. Replace drive unit or send to authorized Lenze service center for repair. |
| EER | EEPROM Memory Error | Read or write error occurred accessing non-volatile internal parameter storage. | Internal EEPROM chip defect or checksum error during write operation. | Attempt factory parameter reset (LOAD DEFAULT). If fault persists, internal hardware fault — replace the unit. |
| CE0 | AIF Communication Error | Communication failure on Automation Interface module. | Fieldbus cable disconnected, AIF module loose, baud rate mismatch, bus master offline. | Check AIF slot seating; verify fieldbus wiring and bus termination resistors. |
| CE1 | System Bus (CAN) Communication Fault | Communication interruption detected on integrated CAN system bus. | CAN connection X4 disconnected, incorrect bus termination, network address conflict. | Check system bus connection wires at X4; confirm termination resistor (120 Ohm) present at ends. |
| PER | Program Error | Positioning program error or invalid instruction in motion sequence. | Target position out of limits, invalid program block call in positioning program. | Check positioning program structure and variable values via Lenze GDC software. |
| PI | Parameter Initialization Error | Parameter set loaded contains invalid or out-of-range values. | Parameter set transfer from a different drive model or software revision. | Re-initialize parameter set to factory default settings and reconfigure. |
| LP1 | Mains Input Phase Failure | One phase missing from 3-phase mains supply voltage. | Blown fuse on input line, loose power wiring on L1, L2, or L3. | Check 3-phase mains voltage balance at input terminals. |
| Sd2 | Resolver Fault | Signal loss or line break detected on resolver feedback connection (X7). | Resolver cable broken or disconnected, resolver coil failure, shield not grounded. | Check Sub-D connector X7, test resolver cable wiring, check shielding. |
| Sd3 | Encoder Fault | Signal loss or channel fault detected on incremental encoder feedback (X8). | Encoder supply voltage fault, track A/B signal missing, broken cable. | Check encoder wiring on X8, test encoder supply power. |
| Sd6 | Encoder Track Error | Track error or phase angle fault between incremental encoder signals. | EMC noise interference on encoder lines, wrong encoder track sequence. | Check cable shielding and grounding; swap A/B track connections if direction reversed. |
Frequently Asked Questions
What software is required to configure the Lenze EVS9321-EPV004 drive?
Configuration can be performed using Lenze Global Drive Control (GDC) software connected via a PC System Bus Adapter (EMF2171IB or EMF2172IB) or locally using the 9371BB plug-in keypad module.
How do I clone parameters to a replacement EVS9321-EPV004 drive?
Parameters can be copied using the optional 9371BB keypad module by saving the parameter set from the active drive and transferring it to the replacement unit, or by uploading and downloading the parameter file via Lenze GDC software.
What causes fault code H05 or EER on the EVS9321-EPV004?
Fault code H05 indicates an unrecoverable internal hardware fault on the main controller board, while EER indicates an EEPROM memory read/write error. If a factory parameter reset does not clear an EER fault, internal hardware replacement or repair is necessary.
What motor feedback devices are supported by the EVS9321-EPV004?
The drive features integrated Sub-D feedback inputs supporting standard resolvers on connector X7 and RS422 incremental encoders on connectors X8 and X9.
What communication protocols can be integrated with the EVS9321-EPV004?
The drive includes an integrated CAN-based System Bus via terminal strip X4 and supports plug-in AIF modules for PROFIBUS-DP (EMF2133IB or EMF2131IB), LECOM serial (EMF2102IB), and Interbus.
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