Lenze 00408455 EVS9326-ES 9300 Servo Drive
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Product Information
The Lenze 00408455 model EVS9326-ES is an 11 kW digital servo drive from the Lenze 9300 Servo family, designed for high-dynamic multi-axis motion control, precision speed and torque regulation, and electronic gearing in industrial machinery. Operating on a three-phase supply voltage ranging from 320 V AC to 528 V AC at 50/60 Hz, this panel-mount servo inverter delivers a continuous output current of 23.5 A with a peak current capability of 35.2 A and an 8 kHz switching frequency. Built to power demanding motion sequences in packaging, material handling, printing, and textile equipment, it provides tight motor regulation across an output frequency range up to 600 Hz.
Connecting and commissioning a replacement EVS9326-ES drive requires matching physical control wiring, feedback interfaces, and internal software configurations. Hardware I/O includes 4 digital inputs, 2 digital outputs, 2 analog inputs, and 2 analog outputs, alongside dedicated D-Sub connectors supporting resolvers at terminal X7 as well as incremental TTL or SinCos encoders at terminal X8. Inter-drive synchronization operates over an integrated CAN/CANopen system bus interface, while modular fieldbus cards like the EMF2133IB PROFIBUS module fit into the dedicated automation slot. Putting a spare drive into service is rarely a direct plug-and-run procedure; operators must transfer parameter configurations to the replacement hardware. The unit includes non-volatile onboard EEPROM storage capable of retaining up to 4 complete parameter sets, which can be uploaded using an EMZ9371BC keypad module, Global Drive Control (GDC) PC software, or Lenze L-force EASY Starter software. ABC Industrial Parts can assist maintenance teams with sourcing fully tested replacement units and preparing parameter configurations for seamless site integration.
Comprehensive diagnostic capabilities allow operators to monitor operating conditions and isolate line faults efficiently. The front panel features dual diagnostic status LEDs: a green Ready LED indicates control power and enable state, while a red Fault/Error LED indicates warnings or active TRIP faults. Detailed operational tracking is accessible through parameter C0168, which logs historical TRIP events, as well as live status codes in parameters C0183 and C0009. Common operational trips include output short circuits (OC1, OC2), DC bus overvoltage (OU) from regenerative deceleration, DC bus undervoltage (LU), heatsink or motor thermal faults (OH, OH4), and encoder feedback signal loss (Sd2, Sd3). Initial troubleshooting should confirm stable input line power, verify thermal sensor connections on terminals T1/T2, inspect encoder shield grounding, and check CAN bus 120-ohm termination. When internal hardware self-test errors (H05) or persistent EEPROM memory faults (EER) occur, internal circuit failures are present and cannot be repaired in the field; replacing the drive or utilizing expert testing and repair services from ABC Industrial Parts offers the fastest route back to full production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 00408455 |
| Model / Type | EVS9326-ES |
| Product Family | 9300 Servo |
| Component Type | Servo Drive |
| Rated Power | 11 kW |
| Supply Voltage Range | 320 - 528 V AC |
| Rated Mains Current | 20 A |
| Continuous Output Current | 23.5 A |
| Maximum Output Current | 35.2 A |
| Output Voltage | 400 V AC |
| Power Loss | 380 W |
| Maximum Output Frequency | 600 Hz |
| Switching Frequency | 8 kHz |
| Digital Inputs / Outputs | 4 Inputs / 2 Outputs |
| Analog Inputs / Outputs | 2 Inputs / 2 Outputs |
Programming and Configuration
Engineering and adjusting the Lenze EVS9326-ES servo drive is performed using established software tools, including Lenze Global Drive Control (GDC) and L-force EASY Starter software. These PC-based programming tools connect directly to the drive, giving maintenance technicians full access to parameter structures, live signal trace monitoring, oscilloscope logging, and guided motor commissioning routines. Routine field setup and parameter edits can also be executed at the cabinet using the pluggable EMZ9371BC operating keypad module.
The drive incorporates non-volatile internal EEPROM memory configured to hold up to 4 complete parameter sets onboard. This multi-set capability allows different operating recipes or motor profiles to be saved directly on the unit. When commissioning a replacement drive, software tools or the keypad module can upload parameter files from a backup or donor unit straight into the replacement drive's memory, ensuring that gain settings, ramp profiles, speed limits, and motor feedback parameters are restored accurately without manual programming.
Communication and System Integration
The Lenze 00408455 EVS9326-ES drive is built for multi-axis automation architectures. It features an integrated CAN/CANopen system bus interface accessed via dedicated control terminals. Operating as a fast system bus, this interface enables real-time drive-to-drive communication, permitting multi-axis phase synchronization, electronic gearing, and speed matching across independent drive channels without burdening the primary PLC control network.
For integration into broader plant networks, the front panel contains an integrated modular automation slot. This slot accommodates communication option modules such as the EMF2133IB PROFIBUS-DP card, as well as INTERBUS and LECOM fieldbus interfaces. In addition to serial and fieldbus integration, hardwired control features 4 digital inputs, 2 digital outputs, 2 analog inputs, and 2 analog outputs for direct connection to local enable signals, status relays, and reference values.
Diagnostics and Status Indication
Diagnostic monitoring on the Lenze EVS9326-ES relies on visual faceplate indicators and readable diagnostic parameters. Two status LEDs give immediate visual feedback regarding operational state: a green Ready LED and a red Fault/Error LED. Variations in LED state—solid, blinking, or dark—clearly differentiate between unpowered conditions, controller inhibition, active drive operation, and active TRIP faults.
Detailed fault analysis is supported by onboard diagnostic registers. Parameter C0168 maintains a TRIP memory log buffer that archives recent trip events, while live operating codes are continuously updated in parameters C0009 and C0183. These registers allow technicians to pinpoint root causes, distinguishing external line faults, overtemperature warnings, and encoder signal loss from internal hardware failures.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Ready (Green) | Green - Solid / Blinking / Off | Off: Drive without power or in fault condition; Blinking: Controller inhibited / ready for operation; On: Drive enabled and running. |
| Fault / Error (Red) | Red - Solid / Blinking / Off | Off: Normal operation, no fault active; Blinking: Warning / active message; On: Active TRIP fault. |
Replacement and Spare Part Considerations
When replacing a Lenze 00408455 EVS9326-ES drive, confirm that the physical hardware rating matches the original application specifications. Electrical characteristics including the 11 kW power rating, 23.5 A continuous output current, and 400 V AC supply requirements must align to protect motor windings and maintain power cabling standards. If the original drive is equipped with a fieldbus interface card, such as the EMF2133IB PROFIBUS module, this option card must be transferred or installed on the replacement unit.
Installing a spare drive directly out of the box will not allow the machine to operate until parameters are configured. Parameter sets must be uploaded into the non-volatile EEPROM memory from external backups, an EMZ9371BC keypad module, or using Global Drive Control (GDC) / L-force EASY Starter software. Following parameter download, confirm CAN bus node address settings, inspect 120-ohm bus termination resistors, and verify encoder connections at terminals X7 or X8 prior to applying power section enable.
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 output terminals or excessive overcurrent peak detected. | Short circuit in motor cable, winding ground fault, motor cable too long, rapid acceleration time set too aggressive. | Check motor and motor cable for short circuits or insulation resistance; check acceleration ramp times. |
| OC2 | Earth fault | Ground fault / earth fault detected on output phase. | Earth fault in motor cable or motor winding, capacitive leakage current. | Check motor wiring and motor insulation with megohmmeter; inspect for grounded phase. |
| OC5 | I x t overload | Drive continuous load overload limit (I x t) exceeded. | Drive overloaded, mechanical blockage, motor undersized for application. | Check mechanical load for jam or binding; reduce motor load; check motor sizing. |
| OU | Overvoltage DC bus | DC bus voltage exceeds maximum allowable threshold. | Excessive regenerative energy during deceleration, brake resistor missing/damaged, deceleration time too short. | Increase deceleration time ramp; check brake chopper module and braking resistor connections. |
| LU | Undervoltage DC bus | DC bus voltage dropped below minimum operating limit. | Mains supply voltage too low, mains phase failure, power interruption. | Check mains input voltage levels and supply fuses. |
| OH | Heatsink temperature high | Heatsink overtemperature limit reached. | Ambient temperature too high, fan failure, dirty or clogged cooling fins. | Clean heatsink, verify internal cooling fan operation, check control cabinet ventilation. |
| OH4 | Motor temperature sensor | Motor overtemperature detected via thermal sensor (PTC/KTY). | Motor thermal overload, insufficient motor cooling, defective sensor wire. | Allow motor to cool down; check motor thermal sensor connections and motor cooling fan. |
| OH7 | Interior temperature high | Internal drive ambient temperature inside housing too high. | Cabinet ambient temperature high, cabinet fan failure. | Improve enclosure ventilation and cooling. |
| OH8 | Motor sensor open circuit | Break detected in motor temperature sensor circuit. | Cable break or loose connection on thermal input terminal T1/T2. | Inspect wiring between thermal sensor and drive control terminals. |
| CE0 | Communication error automation module | Communication failure between control board and automation module slot. | Loose module, defective fieldbus module, communication timeout on fieldbus. | Check physical seat of automation module, verify fieldbus cabling and master status. |
| CE1 | System bus CAN error | Communication error on integrated System Bus (CAN). | CAN line interruption, incorrect bus termination resistors, baud rate mismatch. | Check CAN bus wiring, 120 ohm termination resistors, and baud rate setting in C0352. |
| EER | EEPROM memory fault | EEPROM read or write memory fault on control board. | Corrupted non-volatile memory or internal memory hardware defect. | Internal hardware fault — attempt factory reset (C0002 = 11); if error persists, return unit for repair. |
| H05 | Internal hardware error | Internal control board self-test failure. | Internal circuit fault or component failure on processor/power board. | Internal hardware fault — power cycle drive; if unresolved, return unit for repair. |
| LP1 | Mains phase failure | Failure or high ripple in mains phase supply voltage. | One input phase missing, severe mains imbalance, blown line fuse. | Check 3-phase mains supply fuses and wiring under load. |
| NMAX | Max motor speed exceeded | Actual motor speed exceeds absolute maximum speed threshold. | Overhauling load, incorrect speed controller tuning, encoder feedback error. | Check mechanical load, verify encoder feedback wiring, adjust speed controller settings. |
| Sd2 | Resolver fault | Resolver signal loss or signal level out of tolerance. | Resolver cable disconnected, broken wire, damaged resolver on motor. | Check resolver cable connection at X7, check shield grounding and resolver impedance. |
| Sd3 | Encoder track error | Encoder track failure or signal disruption on encoder input X8. | Encoder cable defect, loose connector, encoder hardware fault. | Check encoder cable and plug connection at X8; verify encoder supply voltage. |
| Sd5 | Encoder supply fault | Encoder power supply overloaded or short-circuited. | Short circuit in encoder supply line or defective encoder drawing excessive current. | Disconnect encoder cable and test supply voltage at X8; replace damaged encoder cable. |
| Sd6 | SinCos encoder error | Absolute track / SinCos track discrepancy error on encoder input. | Defective SinCos encoder, noise interference, cable damage. | Check shield termination, replace encoder cable or encoder if error persists. |
Frequently Asked Questions
What software is used to program and configure the Lenze EVS9326-ES?
The drive is configured using Lenze Global Drive Control (GDC) software or Lenze L-force EASY Starter software. Parameters can also be modified directly using the pluggable EMZ9371BC operating keypad module.
What feedback feedback options are supported by the EVS9326-ES drive?
The EVS9326-ES supports resolver feedback via D-Sub terminal X7, as well as incremental TTL encoders and SinCos encoders via D-Sub terminal X8.
Can I transfer parameters directly to a spare Lenze EVS9326-ES drive?
Yes, parameter sets stored on an EMZ9371BC keypad module or saved as PC files using GDC or L-force EASY Starter software can be downloaded directly into the drive's onboard EEPROM.
What does fault code OC1 indicate on the Lenze EVS9326-ES?
Fault OC1 indicates an overcurrent or output short circuit. Check motor cables and motor windings for insulation faults or short circuits, and verify that acceleration ramps are not set too aggressively.
How do I read diagnostic codes on the EVS9326-ES?
Visual status is shown by the front green Ready LED and red Fault/Error LED. Detailed numerical TRIP history and live operating status can be read in parameters C0168, C0183, and C0009 via keypad or software.
What fieldbus communication modules are supported by the EVS9326-ES?
The integrated modular automation slot accepts option cards including the EMF2133IB PROFIBUS-DP module, as well as INTERBUS and LECOM communication interfaces.
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