EVS9321-CRV003 Lenze 9300 Servo Inverter 0.37 kW Cold-Plate Drive

EVS9321-CRV003 | Lenze 9300 Servo Inverter | Cold-Plate Drive | 0.37 kW

The EVS9321-CRV003 is a compact servo inverter from the Lenze Global Drive 9300 series. It uses a cold-plate design and runs field-oriented servo control. You can drive synchronous servo motors, asynchronous servo motors, and standard asynchronous motors. Rated power is 0.37 kW at 400 V. The unit fits tight cabinets because it cools through a flat rear surface.

Order Code Tree

• EVS9321-CRV003
  • EVS — 9300 Servo Inverter family
  • 9321 — size class (0.37 kW / 1.5 A group)
    • 9321 / 9322 — smallest frame, 350 × 78 mm face
  • C — cold-plate design, rear flat cooling surface
    • Depth 158 mm (sizes 9321–9326)
  • R — register controller variant
  • V003 — software version 003

Key Advantages

• Small footprint. 78 mm wide body saves cabinet space.
• Cold-plate cooling. Heat leaves through the rear plate, not the cabinet air.
• Full servo control. Field-oriented control for servo and standard motors.
• Rich I/O. Two analog inputs, six digital inputs, four digital outputs.
• Flexible feedback. Resolver input plus multi-encoder input for TTL, SinCos, and Hiperface.
• CANopen onboard. System bus is built in; fieldbus modules plug into the AIF slot.

Technical Specifications

• Brand: Lenze
• Model: EVS9321-CRV003
• Series: Global Drive 9300 Servo Inverters
• Rated motor power: 0.37 kW (4-pole asynchronous motor, 400 V)
• Rated output current: 1.5 A nominal at 8 kHz switching frequency
• Maximum output current: 2.3 A at 8 kHz (150% × In overload mode)
• Control: Field-oriented servo control (SC) for synchronous and asynchronous servo motors and standard asynchronous motors
• Analog inputs: 2, ±10 V (switchable 0–20 mA), 11 bits + sign
• Analog outputs: 2, 9 bits + sign
• Digital inputs: 6 (1 controller enable + 5 freely assignable), PLC level per IEC 61131-2
• Digital outputs: 4, 50 mA each
• 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
• Supply voltage: 3/PE AC 320–528 V nominal, 45–65 Hz; alternative DC supply 460–740 V
• Power loss at 400 V: 100 W
• Operating temperature: 0 to +55 °C (sizes 9321–9326); derate 2.5%/°C above +40 °C; not UL-approved
• Storage temperature: -25 to +55 °C
• Relative humidity: Average 85% RH, no condensation (climatic class 3K3 per EN 50178)
• Protection rating: IP20
• Dimensions (H×W×D): 350 × 78 × 158 mm (cold-plate design)
• Weight: Not published for cold-plate variant; built-in design reference is 3.5 kg

Communication and Compatibility

• Built-in ports: CAN system bus (X4); AIF automation interface (X1) for keypad or communication module
• Onboard protocol: CANopen (integrated system bus)
• AIF module options: PROFIBUS DP (EMF2133IB), DeviceNet (EMF2179IB), INTERBUS (EMF2113IB), LECOM A/B (EMF2102IB)
• Migration note: Lenze lists 9300 within the i950 migration set. The i950 copies 9300 servo behaviour via a compatibility switch, i950 PROFIBUS module, and L_ICIP library. No same-order-code drop-in replacement.

Installation Guide

• Mount the unit flat against a cooled metal surface. The rear plate is the heat path.
• Use thermal paste or a heat-conducting pad between plate and mounting surface.
• Keep the 350 × 78 mm face clear for wiring access.
• Check cabinet airflow. A cold plate still needs a cool rear surface.
• Wire the resolver or encoder to the correct Sub-D 9-pin port.
• Use shielded cable for feedback lines. Route them away from motor power cables.
• Ground the unit well. Noise on the system bus causes random faults.

Commissioning and Maintenance

• Load the correct motor data before the first run.
• Run the auto-tune routine for the best servo response.
• Watch the analog input scaling. Wrong scaling causes speed errors.
• Check the controller enable input wiring. This input must be active to start.
• Clean the cold plate surface on a schedule. Dust blocks heat transfer.
• Review fault memory after each trip.

Certifications and Lifecycle

• Input level: PLC level per IEC 61131-2
• Climatic class: 3K3 per EN 50178
• Protection: IP20
• UL: Not UL-approved at the 0–55 °C rating per official table
• Lifecycle: Legacy product. Official Lenze previous-products page is active. Superseded by newer drive generations.

Packing List and Warranty

• 1 × Lenze EVS9321-CRV003 servo inverter
• 1 × official product documentation set
• Warranty: 12 months
• Dispatch: Ships within 12–24 hours after order confirmation
• Carriers: FedEx, UPS, DHL

Expert Review

This unit is a smart pick for small servo axes with limited cabinet depth. The cold plate removes heat from the cabinet air, so the enclosure stays cool. The 1.5 A rating is modest, but the 2.3 A overload covers short peaks. Feedback support is strong: resolver plus Hiperface plus TTL and SinCos. The main catch is age. Lenze has moved the 9300 series to legacy status. Buyers should plan an i950 path for new builds and keep this unit for existing machines. Wiring is dense on a 78 mm face, so allow time for neat cable work.

Manager’s Insight

We stock this model for small servo retrofits. The cold-plate form factor is the reason most customers call. Cabinet space is tight, and air cooling is not an option. Two points matter most: heat-sink surface quality and correct feedback wiring. Get those right and the unit runs well. We ship in 12–24 hours via FedEx, UPS, or DHL. Need a stock check? Write to sales@powergearx.com or message +86 18030005825.

Best Fit Applications

• Small packaging machines with tight cabinets.
• Labeling and filling axes that need precise position control.
• Handling systems with Hiperface absolute encoders.
• Retrofit of a failed 9300 servo axis.
• Machines with CANopen networks and no room for a large drive.
• Sealed or fan-less cabinets that rely on cold-plate heat removal.

FAQ

• What does the C in EVS9321-CRV003 mean?
  It means cold-plate design. The rear face is a flat cooling surface, and depth is 158 mm on this size.
• Does this unit include a keypad?
  No. The X1 AIF slot accepts a keypad or a communication module, but the unit ships without one.
• Which feedback types can I connect?
  You get a resolver input plus a multi-encoder input for TTL, SinCos, and Hiperface encoders.
• Can I run a standard induction motor on it?
  Yes. Field-oriented servo control also covers standard asynchronous motors.
• Experienced buyer tip: how should I mount the cold plate?
  Press the plate against a flat metal surface with thermal paste. Poor contact causes early over-temperature trips.
• Experienced buyer tip: what does the 2.5%/°C derating mean for me?
  Above +40 °C ambient, cut output current by 2.5% per degree. Plan cabinet cooling if your room runs hot.
• Experienced buyer tip: how do I plan for long-term spares?
  Buy one spare now. The 9300 series is legacy, and no same-order-code replacement exists.
• What warranty and shipping do you offer?
  12 months warranty. Orders ship in 12–24 hours via FedEx, UPS, or DHL.

Buying Guide

• Confirm your motor is 0.37 kW or smaller at 400 V.
• Check cabinet depth. Cold-plate depth is 158 mm on size 9321.
• List your feedback device. Resolver, TTL, SinCos, and Hiperface all work.
• Pick the AIF module you need for PROFIBUS DP, DeviceNet, INTERBUS, or LECOM A/B.
• Ask about the i950 migration set if you need long-term availability.
• Contact sales@powergearx.com or +86 18030005825 for quotes and stock.

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