Lenze 00451442 EVS9321-ESV004 – 9300 Servo Drive 0.37kW
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Product Information
The Lenze 00451442 EVS9321-ESV004 is a 0.37 kW vector-controlled servo drive from the Lenze 9300 Servo family. Designed for high-precision rotary positioning, speed synchronization, electronic gearing, and torque-controlled winding processes, this compact IP20 enclosure unit operates on a 3-phase AC supply voltage from 400 V to 480 V with an operational supply range of 320 V to 528 V AC at 48 to 62 Hz. The drive delivers a continuous rated output current of 1.5 A with a 150% overload capacity of 2.25 A for up to 60 seconds at an 8 kHz switching frequency, delivering precise power conversion for industrial machinery across packaging, material handling, textile manufacturing, and automated assembly systems.
For motion feedback and field bus connectivity, the unit includes a built-in resolver feedback processing interface on connector X7 and an incremental encoder simulation output on connector X8. Terminal connections provide 5 digital inputs, 2 digital outputs, 2 differential analog inputs with +/-10 V range and 12-bit resolution, and 2 analog outputs. Real-time system networking is managed via an integrated CAN system bus operating at up to 500 kbit/s on connector X4, supplemented by an Automation Slot (X1) that accommodates optional fieldbus modules such as PROFIBUS-DP (EMF2133IB), CANopen (EMF2175IB), or LECOM serial cards. Replacing a unit requires configuring parameter settings, as internal non-volatile EEPROM memory holds up to four complete parameter sets. Parameter transfer is supported using Lenze Global Drive Control (GDC) software with PC system bus adapters (EMF2177IB or EMF2173IB) or the Keypad XT module (EMF2102IB). ABC Industrial Parts provides technical support and replacement units to simplify parameter migration and speed up machinery startup.
Front-panel LED status indicators offer instant physical diagnostics, featuring a green Drive Ready LED, a red Trip/Fault LED, and a yellow IMP/Inhibit LED indicating controller enable conditions. Internal diagnostic parameter C0161 displays active fault codes, while parameter C0168 maintains a history buffer storing the last eight fault events with timestamps. Field issues related to external connections, such as CAN communication disruptions (CE0) or resolver feedback track signal loss (SD7), can be resolved by inspecting cable shielding, termination resistors, and wiring connections. However, persistent internal faults such as hardware memory errors (EE0), power stage faults (H05), or control supply rail collapses (H10) indicate internal board-level damage that cannot be serviced in the field. Under these circumstances, exchanging the unit or sending it to ABC Industrial Parts for testing and repair represents the fastest path back to full production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 00451442 |
| Model / Type | EVS9321-ESV004 |
| Product Family | 9300 Servo |
| Component Type | Servo Drive |
| Rated Power | 0.37 kW |
| Supply Voltage | 3x 400 - 480 V AC |
| Supply Voltage Range | 320 - 528 V AC |
| Rated Current | 1.5 A |
| Peak Output Current | 2.25 A (150% for 60 s) |
| Switching Frequency | 8 kHz |
| Digital Inputs | 5 |
| Digital Outputs | 2 |
| Analog Inputs | 2 (differential, +/-10V, 12-bit) |
| Analog Outputs | 2 |
| Protection Rating | IP20 |
Programming and Configuration
Drive configuration and parameter management for the Lenze EVS9321-ESV004 are executed using the Lenze Global Drive Control (GDC) engineering software environment or through the optional Keypad XT operating module (EMF2102IB). GDC connects to the drive's system bus using PC System Bus Adapters such as the EMF2177IB or EMF2173IB, allowing full access to parameter structures, live monitoring, and offline project creation.
The internal architecture contains non-volatile EEPROM memory capable of holding up to four complete, independent parameter sets. This multi-dataset capability enables quick switching between distinct operating profiles without reloading project files. In cases where internal parameter memory becomes corrupted (signaled by fault code EE0), factory default values can be restored by writing a value of 1 to parameter C0002 before restoring the verified application profile.
Communication and System Integration
The unit comes equipped with an integrated CAN System Bus interface on connector X4 operating at transmission speeds up to 500 kbit/s. This interface provides real-time motion control communication between multiple 9300 series drives for electronic gearing, multi-axis synchronization, and master-slave axis coordination. Bus operation requires 120-ohm termination resistors at each physical end of the CAN network and distinct node address configuration.
For higher-level PLC integration, the onboard Automation Slot (X1) accepts plug-in fieldbus option modules, including PROFIBUS-DP (EMF2133IB), CANopen (EMF2175IB), and LECOM communication interfaces. Discrete signal integration is handled via terminal blocks providing 5 digital inputs, 2 digital outputs, 2 differential analog inputs (+/-10 V, 12-bit resolution), and 2 analog outputs. Motor position feedback connects to the 9-pin Sub-D resolver socket X7, with encoder output signals mirrored via connector X8.
Diagnostics and Status Indication
Visual status assessment is made possible by three status LEDs located on the front panel of the EVS9321-ESV004. These LEDs indicate drive enable status, pulse inhibit states, warnings, and active TRIP errors. Detailed operational values and alarm data are accessed via parameter C0161 for the active fault code and parameter C0168, which retains a historical log of the last eight fault conditions with recorded timestamps.
Engineers can query diagnostic data directly using the Keypad XT plug-in module or through the GDC diagnostic monitor tool over the CAN system bus connection.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Green LED (DRIVE READY) | Green - Off / Blinking / Solid | Off: Drive unpowered or initialization active. Blinking: Drive operational, output inhibited (IMP). On continuous: Drive operation enabled, power stage active. |
| Red LED (TRIP / FAULT) | Red - Off / Blinking / Solid | Off: Normal operation. Blinking: Warning active. On continuous: TRIP fault detected, output stage disabled. If lit with Green LED off, may indicate hardware/board-level failure requiring service. |
| Yellow LED (IMP / INHIBIT) | Yellow - Solid | On: Controller enable signal (RFR) missing or pulse inhibit active. |
Replacement and Spare Part Considerations
When selecting a replacement for a Lenze 00451442 EVS9321-ESV004 drive, confirm that the complete model code matches, including the hardware designation V004. This configuration delivers a rated output power of 0.37 kW at 1.5 A continuous current. Installing a drive with different power ratings or hardware variants can cause physical installation conflicts or parameter mismatches.
Replacement units require configuration transfer before operation. The parameter dataset from the failing unit must be saved using Lenze GDC software or the Keypad XT module and written to the replacement drive. Ensure that any option module installed in the Automation Slot (X1)—such as a PROFIBUS-DP or CANopen communication card—is transferred to the new drive, keeping network address DIP switches and bus termination settings intact.
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, earth fault, or extreme instantaneous overcurrent. | Short circuit in motor wiring or motor winding, phase ground fault, extremely short acceleration time. | Check motor cable and motor insulation, check acceleration ramps, replace power module if fault persists immediately upon power up. |
| OC2 | Overcurrent during acceleration | Motor current exceeds allowed threshold during speed acceleration. | Acceleration time too short, mechanical overload or drive blockage, motor under-dimensioned. | Increase acceleration time ramp, reduce mechanical load, verify motor parameters. |
| OC5 | I x t overload limit exceeded | Continuous overload threshold exceeded for extended period. | Drive operated above continuous rated current for too long, mechanical binding. | Check mechanical load, verify motor thermal capacity and continuous current rating. |
| OU | DC bus overvoltage | DC bus voltage exceeded upper limit threshold (approx. 770 V DC). | Regenerative energy during braking too high, deceleration ramp too short, brake chopper/resistor missing or defective. | Extend deceleration time, connect external brake resistor, check brake chopper circuit. |
| LU | DC bus undervoltage | DC bus voltage fell below lower limit threshold (approx. 400 V DC). | Mains supply voltage drop, phase loss, supply power supply interrupted. | Check mains voltage, check line fuses and mains contactors. |
| OH | Heatsink overtemperature | Heatsink temperature exceeded upper limit (approx. +85°C). | Insufficient cooling airflow, ambient temperature too high, heatsink clogged, fan failed. | Clean heatsink fins, check cabinet ventilation, ensure proper cabinet clearance. |
| OH3 | Drive internal ambient overtemperature | Temperature inside the servo drive enclosure too high. | Ambient temperature in control cabinet too high. | Improve control cabinet cooling. |
| OH4 | Motor overtemperature (PTC/TK) | Motor thermal sensor connected to terminal X10 triggered overtemperature fault. | Motor thermal overload, cooling fan failure on motor, defective sensor wiring. | Allow motor to cool, check motor loading and external motor fan, check thermal sensor connection. |
| CE0 | System Bus (CAN) communication error | Communication failure on integrated CAN System Bus (X4). | Bus cable broken, incorrect termination resistor (120 Ohm), baud rate mismatch, high noise interference. | Check CAN bus wiring and shielding, verify termination resistors at both cable ends, check node address. |
| CE1 | Automation Module communication fault 1 | Communication interruption between drive and module inserted in Automation Slot. | Module loose, incorrect fieldbus configuration, fieldbus master offline. | Check seating of module in slot, check fieldbus cable, check master PLC status. |
| SD7 | Resolver fault / track signal error | Resolver signal loss or track fault on feedback connector X7. | Resolver cable disconnected, broken wire, resolver defective, heavy electrical interference on feedback cable. | Check resolver cable connection and shielding, test resolver resistance, replace resolver cable. |
| NMAX | Maximum speed exceeded | Actual motor speed exceeded maximum parameter setting. | Speed loop instability, incorrect motor parameter settings, encoder/resolver calibration wrong. | Check speed controller gains (C0070, C0071), verify motor nameplate settings. |
| EE0 | Internal EEPROM checksum error | Non-volatile memory parameter check failed during power-up initialization. | Power failure during parameter store, defective internal EEPROM memory chip. | Internal hardware/memory fault. Reload default factory setting (C0002=1). If fault persists, unit requires return for repair. |
| H05 | Internal hardware error | Hardware fault detected during internal self-test routines. | Internal circuit board failure, gate driver failure, internal supply voltage collapse. | Internal hardware fault — field repair not possible. Replace drive unit or return to authorized repair center. |
| H10 | Internal voltage error | Internal auxiliary power supply voltage out of spec. | Internal switch-mode power supply fault or short circuit on control terminal outputs. | Disconnect control wiring to check for external short circuit on 20V/10V outputs. If fault remains, return unit for repair. |
| PR0 | Program / Task error | Operating system process execution timing error or task collision. | Firmware corruption or abnormal internal system execution. | Cycle logic power. If fault reoccurs, re-flash firmware or replace drive unit. |
Frequently Asked Questions
What software and hardware adapter are needed to program the Lenze EVS9321-ESV004?
The drive is programmed using Lenze Global Drive Control (GDC) software connected via a PC System Bus Adapter (EMF2177IB or EMF2173IB), or directly using the Keypad XT operating module (EMF2102IB).
How do I transfer parameters from an old drive to a replacement unit?
Drive parameters can be read from the original unit using GDC software or saved to a Keypad XT module (EMF2102IB), then uploaded into the non-volatile EEPROM memory of the replacement unit.
What fieldbus communication options does the Automation Slot support?
The onboard Automation Slot (X1) supports plug-in communication modules including PROFIBUS-DP (EMF2133IB), CANopen (EMF2175IB), and LECOM serial adapters.
What does a solid red TRIP light indicate on the drive?
A solid red TRIP LED indicates a critical fault condition that has disabled the output stage. If the red LED remains lit while the green LED is off, it may indicate a hardware failure requiring technical repair.
What action should be taken if fault EE0 occurs?
Fault EE0 points to an internal EEPROM checksum error. Reset the unit to factory defaults by setting parameter C0002 to 1 and reload the project parameters. If the error persists, internal memory circuit failure has occurred.
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