Lenze 00421346 EVS9323-EP – 9300 Servo Positioning Drive 1.5kW
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Product Information
The Lenze 00421346 EVS9323-EP is a 1.5 kW servo positioning drive controller belonging to the Lenze 9300 Servo series. Designed for demanding single-axis and multi-axis motion applications, this compact IP20 unit operates on a 3-phase supply voltage range of 320 V AC to 528 V AC. It delivers a continuous output current of 3.9 A at an 8 kHz switching frequency, with a peak output current capability of 5.85 A for up to 60 seconds to support high dynamic acceleration profiles. As an EP extension variant, the unit incorporates onboard software function blocks dedicated to position profile generation, software limit switches, and homing procedures, enabling autonomous positioning directly on the drive.
Interfacing the drive into an automated system is supported by an integrated CAN system bus operating up to 500 kbps, alongside a front expansion slot X6 for optional fieldbus communication modules such as PROFIBUS-DP (EMF2133IB), Interbus, or LECOM RS232/RS485. Universal feedback connections accept 2-pole and multi-pole resolvers as well as master-frequency encoder input and output signals, while terminals X10/T1-T2 accommodate motor PTC thermal sensors. Commissioning a replacement unit requires transferring device parameters and configuration data. Up to four complete parameter sets can be stored in non-volatile memory and loaded using an EMZ9371BC Keypad XT module without a PC, or managed via Lenze Global Drive Control (GDC) software. Parameter extraction from a donor board can be assisted by ABC Industrial Parts when restoring an operational line.
System status and operating conditions are displayed via front LED indicators: a solid green LED confirms that the drive is initialized and operational, while a solid or flashing red LED alerts operators to an active TRIP fault condition. Diagnostic monitoring and active fault history registers are accessible through Keypad codes C0168 and C0170, over fieldbus status words, or inside the GDC monitoring window. First-line troubleshooting involves checking mains power lines for undervoltage (LU), inspecting motor wiring and insulation for short circuits (OC1) or ground faults (OC2), and evaluating braking resistors for DC bus overvoltage (OU). Internal hardware errors such as H05, H10, or H11 indicate control board failure that cannot be serviced in the field, making a tested replacement drive from ABC Industrial Parts the fastest route back to production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 00421346 |
| Model / Type | EVS9323-EP |
| Product Family | 9300 Servo |
| Component Type | Servo Drive |
| Rated Power | 1.5 kW |
| Supply Voltage Range | 320 - 528 V AC |
| Continuous Output Current | 3.9 A |
| Maximum Output Current | 5.85 A (for 60 s) |
| Switching Frequency | 8 kHz |
| Power Dissipation | 70 W |
| Protection Rating | IP20 |
| Integrated Fieldbus | CAN System Bus (500 kbps) |
| Communication Expansion | Slot X6 (PROFIBUS-DP EMF2133IB, Interbus, LECOM) |
Programming and Configuration
Parameterization and motion configuration for the Lenze 00421346 EVS9323-EP are carried out using Lenze Global Drive Control (GDC) software or the plug-in EMZ9371BC Keypad XT. The integrated software function blocks inherent to the -EP variant govern autonomous positioning profiles, software limit switch boundaries, and homing procedures. These routines execute locally within the drive digital signal processor, reducing motion control processing load on the central master PLC.
Non-volatile internal memory stores up to four complete parameter sets, allowing operators to switch configuration profiles for different product runs or restore settings quickly following drive maintenance. Parameters such as maximum speed thresholds in code C0025 or factory reset routines via code C0002 can be adjusted directly through the keypad or GDC interface to align drive response with mechanical motor loads and resolver feedback configurations.
Communication and System Integration
Network communication on the Lenze 00421346 EVS9323-EP centers around an onboard CAN-based system bus operating at speeds up to 500 kbps. This interface provides inter-drive cross-communication, real-time process data exchange, and system parameter synchronization across multi-axis drive configurations. High-speed process data transmission enables precise coordinated motion control across interconnected nodes.
For supervisory control and PLC integration, slot X6 on the front of the unit accepts plug-in fieldbus modules including the EMF2133IB PROFIBUS-DP card, Interbus interface modules, or LECOM RS232/RS485 adapters. Feedback interface options include resolver evaluation for 2-pole and multi-pole resolvers, alongside master-frequency encoder input and output terminals for master-slave shaft synchronization.
Diagnostics and Status Indication
Diagnostic monitoring for the Lenze EVS9323-EP is facilitated through visual LED indications, keypad diagnostic registers, and fieldbus status words. The front panel includes dedicated status LEDs: a solid green LED confirms operational readiness after successful initialization, while a solid or flashing red LED alerts operators to an active TRIP fault condition. Detailed error history registers are accessible via keypad display codes C0168 and C0170.
Remote diagnostics can be conducted live through the Global Drive Control (GDC) software monitoring window or by querying fieldbus process status words. Monitoring these parameters allows maintenance teams to track real-time operational status, evaluate dynamic overload levels, and pinpoint specific fault codes relating to drive, motor, or network health.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Green LED (Ready) | Green - Solid | Drive operational status; lit continuously when drive is initialized and ready for operation. |
| Red LED (TRIP) | Red - Solid or Flashing | Fault indication; lit continuously or blinking when a TRIP or fault condition is active. |
Replacement and Spare Part Considerations
Replacing a Lenze 00421346 EVS9323-EP servo drive requires matching physical part numbers and verifying that the replacement unit shares the correct -EP positioning control variant. Because parameters control critical positioning limits, gain settings, and motor thermal trip parameters, existing parameter sets must be transferred from the original unit to the spare drive before placing the machine back into service.
Parameter sets stored in non-volatile memory can be copied directly using an EMZ9371BC Keypad XT or uploaded and saved via Lenze Global Drive Control (GDC) software. Optional fieldbus expansion cards installed in slot X6 must be moved to the replacement unit, ensuring proper seating and termination switch settings. If internal hardware faults like EER, H05, or H11 prevent normal keypad operation, technical evaluation and parameter extraction support are essential prior to replacement.
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 | Short circuit or extreme overcurrent detected in motor cables or output stage | Short circuit in motor wiring; motor winding failure; acceleration ramp too steep | Check motor cable and winding insulation; increase acceleration time; verify motor sizing |
| OC2 | Earth Fault | Ground fault / earth fault on motor side | Motor phase connected to earth; ground fault in motor cable | Check motor line for phase-to-ground isolation; inspect cable shield connections |
| OC5 | Ixt Overload | Drive overload (Ixt limit surpassed) | Continuous mechanical overload; drive undersized for dynamic load cycle | Check machine mechanics for binding/friction; reduce load or adjust dynamic acceleration profile |
| OU | Overvoltage DC Bus | DC bus link voltage exceeded upper threshold limit | Excessive braking energy fed back from motor; missing or defective brake resistor; deceleration ramp too short | Extend deceleration time; check external brake resistor connection and resistor value |
| LU | Undervoltage DC Bus | DC bus link voltage fell below lower threshold limit | Mains supply failure; phase loss; input line voltage too low | Check main AC input power supply lines, line fuses, and main contractor switch |
| OH | Heatsink Overtemperature | Drive heatsink temperature exceeded maximum allowable limit (>85 °C) | Fan failure; clogged cooling fins; ambient enclosure temperature too high | Clean heatsink, check internal cooling fan operation and cabinet ventilation |
| OH4 | Motor Temperature Overload | Motor temperature sensor trip (PTC / thermal switch) | Motor thermally overloaded; PTC sensor line disconnected | Allow motor to cool down; check PTC sensor connections on terminals X10/T1-T2 |
| OH7 | Drive Internal Overtemperature | Internal control board ambient temperature too high | Excessive enclosure internal ambient temperature | Improve control cabinet ventilation and air circulation |
| CE0 | Communication Error LECOM | Communication interruption on LECOM interface (RS232/RS485) | Cable disconnected, wrong baud rate, or noise on serial line | Check RS232/RS485 connection cable, shield, and host master settings |
| CE1 | System Bus (CAN) Bus-Off | System bus CAN controller entered Bus-Off state due to frame errors | Incorrect baud rate, missing bus termination resistor, loose wiring, high EMC noise | Verify 120-ohm termination resistors at network ends; check CAN_H / CAN_L connections and baud rate settings |
| CE3 | System Bus Time-Out | Time-out monitored on CAN process data communication | Master device stopped sending cyclic telegrams; bus node disconnected | Check CAN bus communication cables and master PLC state |
| CE4 | Fieldbus Module Error | Communication failure between drive control board and optional fieldbus module in slot X6 | Fieldbus module not seated properly, fieldbus network offline | Re-seat module in slot X6, inspect fieldbus master connection and module power |
| EER | EEPROM Fault | Internal parameter memory checksum error during power-up | EEPROM data corruption or hardware memory chip failure | Reload factory default settings (C0002); if error persists, internal hardware fault requires unit replacement or repair. |
| H05 | Internal Hardware Error | Hardware fault in internal control board power supply or DSP module | Internal hardware component failure | Internal board failure — field repair not possible. Return unit for service or replace drive. |
| H10 | Internal Option Board Fault | Hardware error on internal positioning extension board | Internal electronic defect on controller board | Internal hardware fault — return unit for service or replace drive. |
| H11 | Internal Power Stage Error | Fault detected in internal power driver / gate driver circuit | Defective power section / gate driver IC failure | Internal hardware failure — return drive unit to service center for repair. |
| NMAX | Overspeed | Motor speed exceeded max configured speed threshold (C0025) | Incorrect speed controller gains, loose resolver coupling, runaway load | Check mechanical resolver alignment, check motor feedback wiring, adjust C0025 limit and speed regulator parameters |
| PR0 | Positioning Profile Error | Target position out of software limit switches or profile generation error | Invalid position command sent via fieldbus or terminal program | Check soft limit switch configuration parameters; verify target position command range |
| PR1 | Hardware Limit Switch Tripped | Positive or negative hardware limit switch input activated during positioning | Axis overtravel beyond physical working range | Move axis manually or via jog mode back into valid working envelope; check limit switch wiring |
Frequently Asked Questions
How do I back up and transfer parameters when replacing a Lenze EVS9323-EP drive?
Parameter sets can be backed up using Lenze Global Drive Control (GDC) software via a serial connection or copied directly onto an EMZ9371BC Keypad XT module. The Keypad XT can store parameters from the original drive and download them directly into the replacement unit without requiring a PC.
What does a red TRIP LED indicate on the Lenze 00421346 servo drive?
A continuous or flashing red TRIP LED indicates an active fault condition on the drive. Operators can read the specific fault code from register C0168 or C0170 using the Keypad XT, or monitor the error code inside the GDC software diagnostic window to identify the cause.
Can the Lenze EVS9323-EP connect to a PROFIBUS network?
Yes. While the unit includes an onboard CAN system bus operating up to 500 kbps, slot X6 on the front panel supports optional fieldbus modules, including the EMF2133IB PROFIBUS-DP card, Interbus, or LECOM RS232/RS485 modules.
How can internal hardware errors like H05, H10, or H11 be resolved?
Error codes H05, H10, and H11 signify internal hardware failures within the control board, positioning option board, or power driver circuits. These faults are not field-repairable and require returning the drive unit for service or installing a tested replacement.
What motor feedback devices are supported by the EVS9323-EP?
The Lenze EVS9323-EP features universal feedback processing supporting 2-pole and multi-pole resolvers, along with master-frequency encoder input and output capabilities for speed and position regulation.
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