Lenze 13462421 EVS9326-ES 9300 Servo Positioning Controller 11kW
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Product Information
The Lenze 13462421 EVS9326-ES is an 11 kW servo positioning controller from the Lenze 9300 Servo family, engineered for precise control of synchronous and asynchronous AC motors. Designed for control cabinet mounting, this servo drive operates on a 3-phase AC supply rating between 320 V and 528 V AC (400 V / 480 V nominal) and delivers a rated continuous current of 23.5 A with a peak output current of 35.3 A for up to 60 seconds. Operating at an 8 kHz standard switching frequency with a nominal power loss of 380 W, the drive features field-oriented vector control and a built-in positioning profile generator, eliminating the need for external positioning modules in complex motion control applications.
Interfacing the EVS9326-ES with machine automation systems is facilitated by onboard connections, including a Sub-D 9-pin resolver interface (X7), a Sub-D 15-pin master encoder input and output (X8/X9), 8 programmable digital inputs, 4 digital outputs, 2 analog inputs (±10 V), and 2 analog outputs. Real-time multi-axis synchronization is managed via the integrated CAN system bus, while a modular Automation Interface (AIF) slot supports fieldbus expansion modules such as PROFIBUS-DP (EMF2133IB or EMF2131IB), CANopen, INTERBUS, or Modbus TCP. Commissioning a replacement unit requires restoring the machine's configuration parameters, which can be loaded from non-volatile internal EEPROM memory storing up to four parameter sets or downloaded via Global Drive Control (GDC) software version 4.x or higher or the plug-in EMZ9371BC keypad module. Replacing a drive without transferring these application parameters will prevent the system from operating correctly; ABC Industrial Parts provides tested replacement units and technical support to assist with parameter extraction and drive commissioning.
Diagnostic conditions are indicated directly through three status LEDs on the unit faceplate: a green LED for operational readiness and power stage activity, a yellow LED for controller inhibit or active warning conditions, and a red LED indicating a TRIP error state. Fault monitoring can be accessed through parameter P0000 for current status or parameter P0183 for the logged TRIP history list, as well as via the EMZ9371BC keypad or GDC diagnostic tools. Common drive trips include overcurrent (OC1), earth faults (OC2), DC bus overvoltage (OU), undervoltage (LU), heatsink overtemperature (OH), and fieldbus or CAN bus timeout errors (CE0, CE4). If a hardware error code such as H05 occurs or the red status LED remains permanently lit without permitting a reset, the internal power supply or control board has suffered hardware failure. In such instances, internal component repairs are not field-serviceable, and sourcing a reconditioned exchange unit or sending the device for repair through ABC Industrial Parts offers the most effective solution to restore production lines.
Technical Specifications
| Rated Power | 11 kW |
| Rated Supply Voltage | 400 V AC |
| Supply Voltage Range | 320 - 528 V AC |
| Rated Current | 23.5 A |
| Maximum Output Current | 35.3 A |
| Switching Frequency | 8 kHz |
| Power Loss | 380 W |
Programming and Configuration
The Lenze EVS9326-ES servo positioning controller utilizes non-volatile internal EEPROM memory capable of holding up to four complete parameter sets. Drive configuration and motion profiles are created and maintained using Lenze Global Drive Control (GDC) software version 4.x or higher, which connects to the drive interface for real-time monitoring, parameter adjustment, and oscilloscope diagnostic functions.
For field installation and quick parameter transfer without a PC, the optional EMZ9371BC keypad module can be attached directly to the front interface. The keypad allows maintenance personnel to read active error messages, modify parameter values, or copy stored parameter structures from one drive to another. When replacing an existing drive unit, uploading the active parameter set from the original unit or loading a verified software backup is mandatory to ensure correct motor feedback alignment, positioning limits, and I/O assignment.
Communication and System Integration
System integration with the Lenze EVS9326-ES is achieved through a combination of integrated hardware interfaces and modular expansion options. Onboard connections feature an integrated CAN system bus on terminal X4 for direct cross-communication and multi-axis synchronization between drives. Position feedback is handled via a dedicated Sub-D 9-pin resolver connector (X7) alongside a Sub-D 15-pin encoder interface (X8/X9) capable of processing master encoder signals.
For higher-level PLC architecture, the drive includes a flexible Automation Interface (AIF) expansion slot. This slot accommodates optional communication adapters including the EMF2133IB and EMF2131IB PROFIBUS-DP modules, as well as optional modules for CANopen, INTERBUS, and Modbus TCP networks. Control signals are wired directly to onboard terminals comprising 8 programmable digital inputs, 4 digital outputs, 2 bipolar analog inputs (±10 V), and 2 analog outputs.
Diagnostics and Status Indication
Operational states and diagnostic faults on the EVS9326-ES are communicated via front-panel LEDs and diagnostic parameter registers. Operational status is monitored in real-time through parameter P0000, while parameter P0183 retains a historical record of past TRIP fault events. Detailed diagnostic monitoring and signal tracing are available through the GDC software oscilloscope function or the plug-in EMZ9371BC keypad display.
Three status LEDs provide immediate feedback on the drive's condition. The green Ready LED indicates power stage activation or system initialization, the yellow Inhibit/Warning LED signals disabled output states or pending warnings, and the red Fault LED signals active TRIP conditions. A steady red illumination that cannot be cleared indicates severe internal hardware damage.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Ready (Green LED) | Green - Solid / Flashing | ON = ready for operation / power stage active; Flashing = drive active / initializing |
| Inhibit / Warning (Yellow LED) | Yellow - Solid | Controller Inhibit (IMP) active or warning status present; output stage disabled |
| Fault / Error (Red LED) | Red - Solid | TRIP error present. If red LED is permanently illuminated and drive cannot be reset, an internal hardware failure occurred requiring return for repair. |
Replacement and Spare Part Considerations
When substituting an existing 11 kW servo drive with a replacement Lenze EVS9326-ES (part number 13462421), power ratings and input voltage requirements must be matched precisely. The replacement drive must be rated for 400 V / 480 V AC nominal operation and capable of meeting the continuous output current demand of 23.5 A (35.3 A peak).
Prior to putting a replacement drive into service, the existing option modules and parameter settings must be transferred. Ensure the optional AIF communication module (such as PROFIBUS-DP EMF2133IB) is safely removed from the faulty unit and seated firmly into the replacement drive's AIF slot. Verify that CAN bus termination resistors (120 ohms) are correctly positioned on terminal X4 if the unit is part of a CAN system network.
Because a replacement drive comes with factory default parameter settings, parameter transfer is required before machine start-up. Parameter sets must be loaded via GDC software or transferred using the EMZ9371BC keypad. Verify all resolver and encoder connections at terminals X7 and X8/X9, and confirm motor thermal protection wiring at terminals T1/T2 to prevent spurious overtemperature trips.
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 motor phase or output stage. | Short circuit in motor cable, motor winding fault, acceleration time set too short. | Check motor cable for short circuits or ground faults, check motor winding insulation, increase acceleration times. |
| OC2 | Earth Fault | Ground fault / earth fault detected in output phase. | Earth fault in motor cable or motor winding, capacitive cable charging current too high. | Inspect motor and wiring for earth ground shorts, check motor insulation resistance. |
| OC5 | I x t Motor Overload | Continuous overload of the connected motor (I²t integration threshold reached). | Drive running in continuous overload, mechanical binding in drive train. | Check mechanical load, lower motor load, check current limits and motor sizing. |
| OU | DC Bus Overvoltage | DC bus voltage exceeds maximum allowable threshold. | Excessive regenerative energy during deceleration, deceleration time set too short, braking chopper or brake resistor defective/missing. | Increase deceleration time, connect brake resistor or inspect braking module hardware. |
| LU | DC Bus Undervoltage | DC bus voltage fell below minimum allowable threshold. | Mains supply voltage drop, phase failure, mains supply interrupted during operation. | Check supply voltage, inspect mains fuses, check supply line wiring. |
| OH | Heatsink Overtemperature | Drive heatsink temperature exceeded upper limit threshold. | Inadequate cabinet ventilation, cooling fan defective, heatsink heavily soiled, ambient temperature too high. | Clean heatsink fins, check internal enclosure cooling fans, ensure proper cabinet clearance. |
| OH4 | Motor Overtemperature | Motor thermal sensor (PTC / thermal contact) activated on terminals T1/T2. | Motor continuously overloaded, thermal sensor cable broken or disconnected. | Allow motor to cool down, inspect load condition, check thermal sensor connection at terminals. |
| OH7 | Internal Device Temperature High | Internal temperature inside the drive unit exceeded limit. | Control card region overheating due to excessive enclosure ambient temperature. | Improve enclosure cooling and airflow. |
| NMAX | Maximum Speed Exceeded | Motor speed exceeded configured maximum speed limit (NMAX). | Speed controller unstable, gain parameters configured improperly, field weakening fault. | Check speed controller parameters, verify feedback device and cable immunity. |
| CE0 | AIF Communication Fault | Communication interruption between drive and AIF fieldbus module. | Fieldbus module loose, bus line interrupted, master controller stopped. | Check seating of module in AIF slot, inspect fieldbus connections and network master status. |
| CE4 | System Bus CAN Time-Out | Communication failure or telegram timeout on integrated CAN system bus. | CAN bus wiring disconnected, missing termination resistors, bus baud rate mismatch. | Verify CAN bus wiring (X4), confirm 120-ohm bus termination, check bus baud rate configuration. |
| H05 | Internal Hardware Fault | Internal hardware failure detected during self-test routine. | Defective internal power supply board, microcontroller failure, or corrupted internal memory. | Internal hardware fault — non-field-serviceable. Return drive unit for repair or replace unit. |
| EER | EEPROM Fault | Data corruption detected in non-volatile EEPROM parameter memory. | Power failure during write sequence, corrupted EEPROM memory chip. | Reload factory default parameters (P0002 = 1). If fault persists, EEPROM chip or mainboard is defective — return unit for repair. |
| LP1 | Mains Phase Failure | One phase of the 3-phase AC input supply is missing. | Blown input fuse, loose terminal connection, asymmetrical mains voltage supply. | Check line fuses, verify supply voltage across all three incoming phases (L1, L2, L3). |
| r-S | Resolver Fault | Resolver signal connection loss or signal error. | Resolver cable broken or unplugged at X7, resolver failure in motor. | Check resolver cable connection to X7, check resolver screening, replace resolver cable. |
| Sd1 | Encoder Line Frequency Error | Loss of incremental/absolute encoder signal at interface X8/X9. | Encoder cable disconnected, broken wire, signal level out of specification. | Check encoder wiring and shield connection at connector X8/X9. |
Frequently Asked Questions
What software is required to configure the Lenze EVS9326-ES servo drive?
The drive is configured using Lenze Global Drive Control (GDC) software version 4.x or higher. Parameters can also be modified or transferred directly using the optional EMZ9371BC plug-in keypad module without a PC.
How are parameter sets stored and transferred on the EVS9326-ES?
The drive features non-volatile internal EEPROM memory capable of storing up to four distinct parameter sets. Parameters can be backed up and restored using GDC software or copied between drives using the EMZ9371BC keypad module.
Can the EVS9326-ES be integrated into a PROFIBUS network?
Yes. Fieldbus integration is supported through the front Automation Interface (AIF) expansion slot, which accepts PROFIBUS-DP communication modules such as the EMF2133IB or EMF2131IB.
What does a permanently illuminated red LED indicate on the drive?
A permanent red status LED indicates an active TRIP fault condition or an internal hardware failure. If the drive cannot be reset or parameter P0000 displays fault H05, an internal hardware defect has occurred that requires unit repair or replacement.
What motor feedback devices are supported by the EVS9326-ES?
The unit features a Sub-D 9-pin interface (X7) for standard resolver feedback and a Sub-D 15-pin interface (X8/X9) for master encoder inputs and outputs.
Is the Lenze EVS9326-ES a plug-and-play replacement?
No. A replacement unit requires configuration before operation. Parameter settings, motion profiles, and communication parameters must be loaded into the replacement drive's EEPROM via GDC software or keypad transfer, and any expansion modules (such as AIF fieldbus cards) must be installed.
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