Lenze EVS9326-ESV004 EVS9326-ES 11kW 9300 Servo Inverter
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Product Information
The Lenze EVS9326-ESV004 is an 11 kW servo inverter drive from the 9300 Servo series, designated under model type EVS9326-ES. Engineered for high-dynamic motion applications such as multi-axis synchronized systems, packaging indexing machinery, continuous web handling, and precision positioning gantries, this panel-mounted unit operates on a three-phase line supply between 320 and 528 V AC. The controller delivers a continuous output current of 23.5 A at output frequencies up to 480 Hz, featuring a robust 150% peak current capacity of 35.3 A for up to 60 seconds to manage heavy load fluctuations within an IP20-rated enclosure.
Integration into automated production environments relies on an integrated System Bus CAN interface operating at up to 500 kbps, along with onboard feedback connections for resolvers, incremental encoders, and encoder simulation outputs. Additional network integration is achieved through an Automation Interface (AIF) slot, which accepts plug-in fieldbus modules such as the EMF2133IB PROFIBUS-DP module or the EMF2102IB LECOM adapter. Putting a replacement drive into service requires transferring the complete parameter dataset from the original controller using Global Drive Control (GDC) PC software or an EMZ9371BC plug-in operating keypad. ABC Industrial Parts can assist engineering teams with parameter backup extraction and spare unit preparation to minimize machine downtime during drive replacement.
Diagnostic monitoring on the drive faceplate features visual status LEDs, including a solid green Ready LED for normal operation and a red Fault LED that illuminates solid or flashes during a TRIP fault condition. Comprehensive troubleshooting is performed through the EMZ9371BC keypad display or GDC software, which accesses diagnostic history registers C0161 through C0168 to evaluate faults such as power stage overcurrent (OC1), earth faults (OC2), DC bus overvoltage (OU), or heatsink overtemperature (OH). When hardware faults occur, such as EEPROM corruption (EER) or control board failure (FAIL), internal repair is not possible on the factory floor, and swapping the drive with a tested exchange unit provides the most reliable route back to production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVS9326-ESV004 |
| Model / Type | EVS9326-ES |
| Rated Power Output | 11 kW |
| Supply Voltage Range | 320 - 528 V AC |
| DC Bus Voltage Range | 460 - 740 V DC |
| Rated Output Current | 23.5 A |
| Peak Output Current | 35.3 A (150% for 60s) |
| Maximum Output Frequency | 480 Hz |
| Ingress Protection Rating | IP20 |
| Integrated System Bus | CANbus (500 kbps) |
Programming and Configuration
Parameter configuration for the Lenze EVS9326-ESV004 is primarily managed through Lenze Global Drive Control (GDC) PC software. GDC allows engineers and maintenance technicians to adjust motor parameters, set acceleration and deceleration ramps, monitor dynamic operational variables, and store complete parameter sets electronically for archival or commissioning purposes.
Direct drive panel interaction is achieved using the plug-in EMZ9371BC operating keypad module. The keypad connects directly to the front faceplate of the drive, enabling parameter modifications, manual jog commands, and fault history inspection directly at the control cabinet without requiring a computer interface.
Communication and System Integration
The EVS9326-ESV004 includes an integrated System Bus CAN interface operating at communication speeds up to 500 kbps. This native interface enables multi-axis synchronization and rapid data exchange between neighboring 9300 series drives and high-level controllers across continuous processing or indexing lines.
Flexible integration into plant-wide fieldbus architecture is provided by the onboard Automation Interface (AIF) slot. The drive supports a selection of plug-in communication modules, including the EMF2133IB PROFIBUS-DP adapter, the EMF2102IB LECOM interface card for RS232 or RS485 serial networks, and Interbus communication cards.
Diagnostics and Status Indication
Operational monitoring on the EVS9326-ESV004 combines physical LED indication with onboard diagnostic registers. Two front panel status LEDs give instant visual status feedback, while internal diagnostic history buffer registers C0161 through C0168 retain sequential records of historical fault conditions.
Technicians can review detailed fault history and operational metrics by connecting an EMZ9371BC keypad module or connecting a PC running Global Drive Control (GDC) software. These tools provide diagnostic readings to rapidly isolate line side supply problems, feedback issues, or load-induced overcurrent conditions.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Ready | Green - Solid | Drive operational status normal |
| Fault | Red - Solid / Flashing | TRIP fault condition active |
Replacement and Spare Part Considerations
When replacing an existing Lenze EVS9326-ESV004 drive, confirm that the replacement matches the required power rating of 11 kW and input voltage specification of 320 to 528 V AC. Any plug-in communication modules fitted in the AIF slot, such as an EMF2133IB PROFIBUS module or EMF2102IB LECOM card, must be removed from the original drive and reinstalled into the replacement unit.
A replacement servo inverter cannot control the motor until the application parameters are uploaded. The configuration dataset should be backed up from the existing unit using an EMZ9371BC keypad or Global Drive Control (GDC) software and transferred to the replacement drive prior to restarting production. ABC Industrial Parts provides tested replacement units to support maintenance teams during critical hardware failures.
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 or extreme overcurrent in power stage or motor connection. | Short circuit in motor cable, winding contact, or drive output stage failure. | Check motor and wiring for short circuit / earth fault. If motor and wiring are intact, internal hardware failure requires service/repair. |
| OC2 | Earth Fault | Earth fault / ground fault detected at output terminals. | Ground fault in motor lead, terminal block moisture, or motor insulation breakdown. | Check motor leads and motor insulation resistance to PE ground. |
| OC5 | Drive Overload (I2t) | Drive overloaded continuously beyond I2t thermal threshold. | Excessive mechanical load, prolonged acceleration, undersized drive. | Reduce drive load or increase acceleration/deceleration ramp times. |
| OU | Overvoltage DC Bus | DC bus voltage exceeds maximum upper safety limit (>770 V DC). | Regenerative energy from motor deceleration, missing or defect braking resistor. | Check deceleration ramps, connect or inspect braking resistor / brake chopper. |
| LU | Undervoltage DC Bus | DC bus voltage fell below minimum lower safety threshold. | Mains voltage failure, input phase missing, line fuse blown. | Check main AC input supply voltage and line fuses. |
| OH | Heatsink Overtemperature | Drive heatsink temperature exceeded allowable operating limit (>85 °C). | Insufficient cabinet ventilation, dirty heatsink cooling fins, broken fan. | Clean heatsink, inspect enclosure cooling fans, ensure proper clearance. |
| OH4 | Motor Overtemperature | Motor temperature sensor (PTC/thermal switch on X10) tripped. | Motor thermal overload, cooling fan failure on motor. | Allow motor to cool down, inspect motor cooling fan and mechanical load. |
| OH7 | Interior Overtemperature | Drive interior ambient temperature limit exceeded. | Excessive control cabinet temperature. | Improve ambient cooling inside the control cabinet. |
| CE0 | AIF Communication Error | Communication fault between drive and plug-in module in AIF slot. | Loose module, defective fieldbus connection, or module hardware error. | Check module seating in AIF slot and communication cable integrity. |
| EER | EEPROM Memory Fault | Internal EEPROM memory read/write error or checksum corruption. | Internal hardware component breakdown or data corruption. | Internal hardware fault — reset parameters to default or send drive for repair. |
| FAIL | Internal Hardware Failure | Control board or internal drive processor fault. | Internal component defect. | Internal hardware fault — return unit to Lenze service for repair. |
Frequently Asked Questions
How do I transfer parameters to a replacement Lenze EVS9326-ESV004 drive?
Parameter sets can be uploaded from the original unit and restored to the replacement drive using Lenze Global Drive Control (GDC) PC software or by saving the parameter profile into an EMZ9371BC keypad module for direct download.
What line supply voltage does the Lenze EVS9326-ESV004 require?
The EVS9326-ESV004 operates on a three-phase AC supply voltage between 320 V AC and 528 V AC, maintaining an internal DC bus voltage range between 460 V DC and 740 V DC.
Which communication protocols are supported on this drive?
The drive includes an integrated System Bus CAN interface (up to 500 kbps) and an Automation Interface (AIF) slot that supports plug-in cards such as PROFIBUS-DP (EMF2133IB), LECOM (EMF2102IB), and Interbus modules.
What does a solid red Fault LED indicate on the front panel?
A solid or flashing red Fault LED indicates an active TRIP condition, caused by events such as an overcurrent fault (OC1), earth fault (OC2), DC bus overvoltage (OU), or heatsink overtemperature (OH).
What motor feedback systems can be connected to the EVS9326-ESV004?
The inverter features onboard terminal inputs designed for resolvers, incremental encoders, and encoder simulation signals for closed-loop positioning and velocity feedback.
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Data backup and recovery
Have you lost valuable parameters or data due to a malfunction while the manufacturer no longer provides support? At ABC Industrial Parts, we help you secure this data, both for common and specific products.
Specific firmware and hardware versions
If you are working with specific hardware or firmware versions that are no longer available from the manufacturer, ABC Industrial Parts is your partner. When making your enquiry, clearly state which versions you need, we will then look at the possibilities of supplying those versions, so that your installations continue to function optimally.
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