Name: EVS9331-ET Lenze 9300 Servo Inverter 55 kW PLC Module
SKU: EVS9331-ET
Price: 214.00 USD
Availability: InStock

Product details

Lenze EVS9331-ET Global Drive 9300 Servo Inverter – 55 kW Servo PLC

The Lenze EVS9331-ET is a legacy servo inverter from the Global Drive 9300 series. It combines field-oriented servo control with PLC functionality. This unit suits asynchronous and synchronous servo motors. It delivers 55 kW rated power at 400 V. The built-in push-through design saves cabinet space. Lenze officially lists this model as a previous product. The i950 series offers a verified migration path.

Technical Data

Brand: Lenze
Model: EVS9331-ET
Series: Global Drive 9300 Servo Inverters
Module type: Servo PLC inverter with built-in push-through design
Rated motor power: 55.0 kW (4-pole asynchronous motor, 400 V)
Rated output current: 110.0 A nominal at 8 kHz switching frequency
Maximum output current: 165.0 A at 8 kHz (150 % × In overload mode)
Control method: Field-oriented servo control (SC) for synchronous and asynchronous servo motors, plus standard asynchronous motors
Program memory: 655 kByte flash (Servo PLC variants)
Analog inputs: 2 channels, ±10 V (switchable 0…20 mA), 11 bits + sign
Analog outputs: 2 channels, 9 bits + sign
Digital inputs: 6 (1 controller enable + 5 freely assignable), PLC level per IEC 61131-2
Digital outputs: 4, 50 mA per output
Resolver input: Sub-D 9-pin
Encoder input: Multi-encoder input for TTL/SinCos incremental encoders and Hiperface absolute encoders
Digital frequency input/output: Two-track each, Sub-D 9-pin
Resolution: Analog input 11 bits + sign; analog output 9 bits + sign
Supply voltage: 3/PE AC 320…528 V nominal, 45…65 Hz; alternative DC supply 460…740 V
Power loss at 400 V: 1470 W
Operating temperature range: 0…+50 °C ambient (sizes 9327–9332, 15–75 kW)
Derating: 2.5 %/°C above +40 °C output-current derating
Storage temperature range: -25…+55 °C
Relative humidity: Average 85 % RH, no condensation (climatic class 3K3 per EN 50178)
Protection rating: IP20
Dimensions (H×W×D): 680 × 440 × 285 mm
Weight: 59.0 kg (catalogue value; a mirror source lists 40.0 kg — two official sources conflict)
Immunity: Industrial EMC environment per EN 50178 climatic class 3K3

Communication and Compatibility

Built-in ports: CAN system bus (X4); AIF automation interface (X1) for keypad or attachable communication module
Protocols: CANopen integrated on the system bus
AIF expansion modules: PROFIBUS DP (EMF2133IB), DeviceNet (EMF2179IB), INTERBUS (EMF2113IB), LECOM A/B (EMF2102IB)
Migration path: Lenze confirms the i950 replicates 9300 servo behaviour via compatibility switch, i950 PROFIBUS module and L_ICIP library
Replacement note: No drop-in same-order-code replacement exists

Installation Guide

Mount the unit vertically in a cabinet. Keep the push-through heatsink clear.
Respect IP20. Use a sealed enclosure for dusty or wet areas.
Wire the 3/PE AC supply to 320…528 V. Check the DC alternative (460…740 V) if used.
Connect the resolver to the Sub-D 9-pin input. Connect the encoder to the multi-encoder input.
Use the CAN bus port X4 for the system bus. Fit the AIF module for PROFIBUS, DeviceNet or INTERBUS.
Keep the ambient below +50 °C. Derate output current 2.5 %/°C above +40 °C.
Allow 1470 W power loss at 400 V in cabinet thermal design.

Commissioning and Maintenance

Load the PLC program via the 655 kByte flash memory.
Set motor data for field-oriented servo control. Run the auto-tune routine.
Use the AIF keypad or a PC tool for parameter setup.
Check the 6 digital inputs and 4 digital outputs for correct wiring.
Verify analog input scaling (±10 V or 0…20 mA) before start-up.
Clean the heatsink fins during scheduled maintenance. Check fan operation.
Store spare units at -25…+55 °C. Avoid condensation.

Certification and Lifecycle

Lifecycle status: Legacy product. Lenze lists it on the official previous products page.
Audit status: OFFICIAL_VERIFIED
Standards: Climatic class 3K3 per EN 50178; PLC level per IEC 61131-2. This unit is not UL-approved.
Last verified: 2026-10

Packaging and Warranty

1 × Lenze EVS9331-ET servo inverter
1 × product documentation set
Warranty: 12 months
Dispatch: within 12–24 hours after order confirmation
Shipping: FedEx, UPS or DHL

Manager’s Insight

The EVS9331-ET remains a solid choice for plants that already run the 9300 servo platform. Its Servo PLC function cuts the need for a separate controller. The 150 % overload headroom handles peak torque demands in positioning tasks. Buyers should plan the i950 migration path early. Stock of legacy units is limited. This inverter fits packaging lines, printing presses and material handling systems that use asynchronous or synchronous servo motors.

Expert Review

Field-oriented servo control gives this unit smooth torque at low speed. The 8 kHz switching frequency keeps motor noise low. The built-in PLC memory (655 kByte) supports compact machine logic. The dual analog inputs and six digital inputs cover most sensor interfaces. The main drawback is the legacy status. Spare-part sourcing will tighten over time. For new builds, the i950 is the better choice. For existing 9300 machines, this unit is a direct fit.

Best Fit Applications

Packaging machines with servo positioning axes
Printing and paper converting lines
Material handling and conveyor systems
Machine tools with asynchronous servo motors
Retrofit projects on existing 9300 installations
Any machine needing integrated PLC plus servo control in one module

FAQ

Q: What motor types does the EVS9331-ET drive?
A: It drives synchronous servo motors, asynchronous servo motors and standard asynchronous motors.

Q: Is this model still available from Lenze?
A: No. Lenze lists it as a previous product. The i950 series is the official migration path.

Q: How much overload current does it deliver?
A: It reaches 165 A for short periods. That is 150 % of the 110 A nominal current.

Q: Can I use it without an extra PLC?
A: Yes. The Servo PLC variant includes 655 kByte flash memory for machine logic.

Q: What communication modules fit the AIF slot?
A: PROFIBUS DP, DeviceNet, INTERBUS and LECOM A/B modules are available.

Q: What is the shipping time?
A: We dispatch within 12–24 hours. FedEx, UPS and DHL handle delivery.

Q: What warranty do you offer?
A: Every unit carries a 12-month warranty.

Q: Experienced buyer tip — how do I check a used 9300 unit?
A: Inspect the heatsink for dust build-up. Check the DC bus capacitors for swelling. Test the resolver input with a known-good motor before you commit.

Q: Buying advice — should I buy this or the i950?
A: Buy the EVS9331-ET to replace a failed unit in an existing 9300 machine. Buy the i950 for new designs or long-term spares planning.